Inversor Moeller DF4

7/27/2019 Inversor Moeller DF4

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Hardware and EngineeringDF4-...Frequency InverterDE4-KEY-1Keypad07/98 AWB-C823-1278GB1st published 1997, edition 04/972nd edition 1998, Edition date 07/98 Moeller GmbH, BonnAuthor: Rainer GnzelEditor: Karola GropietschTranslator: Terence OsbornAll brand and product names are trademarksor registered trademarks of the ownerconcerned.All rights reserved, including those of the

translation.No part of this manual may be reproduced inany form (printed, photocopy, microfilm orany otherprocess) or processed, duplicated ordistributed by means of electronic systemswithout written permission of Moeller GmbH,Bonn.Subject to alterations without notice.I

Before commencing the installation Disconnect the power supply of the device. Ensure that devices cannot be accidentallyrestarted. Verify isolation from the supply. Earth and short circuit. Cover or enclose neighbouring units thatare live. Follow the engineering instructions (AWA)of the device concerned. Only suitably qualified personnel inaccordance with EN 50110-1/-2(VDE 0105 Part 100) may work on thisdevice/system. Before installation and before touchingthe device ensure that you are free of

electrostatic charge. The functional earth (FE) must beconnected to the protective earth (PE) orto the potential equalisation. The systeminstaller is responsible for implementingthis connection. Connecting cables and signal lines shouldbe installed so that inductive or capacitiveinterference do not impair the automationfunctions. Install automation devices and relatedoperating elements in such a way that theyare well protected against unintentional

operation. Suitable safety hardware and software


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measures should be implemented for theI/O interface so that a line or wire breakageon the signal side does not result inundefined states in the automationdevices. Ensure a reliable electrical isolation of the

low voltage for the 24 volt supply. Onlyuse power supply units complying withIEC 60364-4-41 (VDE 0100 Part 410) orHD 384.4.41 S2. Deviations of the mains voltage from therated value must not exceed the tolerancelimits given in the specifications, otherwisethis may cause malfunction and dangerousoperation. Emergency stop devices complying withIEC/EN 60204-1 must be effective in alloperating modes of the automationdevices. Unlatching the emergency-stop

devices must not cause restart. Devices that are designed for mounting inhousings or control cabinets must only beoperated and controlled after they havebeen installed with the housing closed.Desktop or portable units must only beoperated and controlled in enclosedhousings.Moeller GmbHSafety instructions

Warning!Dangerous electrical voltage!II Measures should be taken to ensure theproper restart of programs interruptedafter a voltage dip or failure. This shouldnot cause dangerous operating states evenfor a short time. If necessary, emergencystopdevices should be implemented. Wherever faults in the automation systemmay cause damage to persons or property,external measures must be implemented toensure a safe operating state in the eventof a fault or malfunction (for example, bymeans of separate limit switches,

mechanical interlocks etc.). According to their degree of protectionfrequency inverters may feature duringoperation live, bright metal, or possiblymoving, rotating parts or hot surfaces. The impermissible removal of thenecessary covers, improper installation orincorrect operation of motor or frequencyinverter may cause the failure of the deviceand may lead to serious injury or damage. The relevant national regulations apply toall work carried on live frequency inverters. The electrical installation must be carriedout in accordance with the relevantregulations (e. g. with regard to cable cross


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sections, fuses, PE). All work relating to transport, installation,commissioning and maintenance mustonly be carried out by qualified personnel.(IEC 60364 and HD 384 and national worksafety regulations).

Installations fitted with frequency invertersmust be provided with additionalmonitoring and protective devices inaccordance with the relevant safetyregulations etc. Modifications to thefrequency inverters using the operatingsoftware are permitted. All shrouds and doors must be kept closedduring operation. In order to reduce hazards to persons orequipment, the user must include in themachine design measures that restrict theconsequences of a malfunction or failure of

the drive (increased motor speed or suddenstandstill of motor). These measuresinclude: Other independent devices formonitoring safety-related variables(speed, travel, end positions etc.). Electrical or non-electrical systemrelated measures (interlocks ormechanical interlocks). Live parts or cable connections of thefrequency inverter must not be touchedafter it has been disconnected from thepower supply due to the charge incapacitors. Appropriate warning signsmust be provided.Moeller GmbHSafety instructions

107/98 AWB-C 823-1278 GB

ContentsAbout This Manual 31 About The Product Family 5System overview 5Version selection criteria 8Intended use 12Storage, transport, recycling 142 Engineering 16EMC compliance 16Mains network configurations 23Power cabling 25Motor types and connections 28Circuit types 32Connecting the controller 473 Setting Parameters 56Basic principles 56Factory settings 56Changeable parameters 57Control parameters 61

Read-only parameters 87Relay monitoring functions 924 Assembly/Installation 101


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Scope of delivery 101Installation in the control cabinet 1015 Operation 114Commissioning 114Switching on 115Operation 116

Contents207/98 AWB-C 823-1278 GB

6 Diagnostics 119Fault-finding 119Fault messages and rectification 121Monitoring messages 122Fault messages on turning on the power 123Fault message during operation of the drive 1247 LCD Keypad DE 4-KEY-1 126Assembly 126Functions of keys and LCD display 127Structure of the operating program 130

Changing and saving parameters 133Appendix 137Compliance with standards 137Technical data for DF4-120 series 138Technical data DF4-340 139Technical data DF4-341 141Control inputs/outputs 143Comments/abbreviations used inthe parameter table 145Parameter table 146Fuses/cable cross-sections 156Mains filters/mains contactors 157Interference currents 160

Assembly/Installation 161Dimensions 161Index 165307/98 AWB-C823-1278GB

About This ManualThis manual contains the information you need toconnect up the frequency inverter correctly and toconfigure the drive parameters to your requirements.The information in this manual only applies to thespecified hardware and software versions.The manual is subdivided into 2 parts. Part 1describes the frequency inverter models DF4-120,DF4-340 and DF4-341 together with all of theconfigurable parameters. The models are notdescribed in separate sections. Furthermore, wheredifferences and special points apply to a particularfrequency inverter model, this is made clear in thetext.Part 2 describes the optional LCD keypad. The LCDkeypad does not belong to the standard scope ofdelivery of the DF4 frequency inverter series. It iscovered in this manual nonetheless, because youcan also use it to configure the drive parameters.The manual uses the following abbreviations and

symbols:PNU: Parameter numberWE: Factory setting


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407/98 AWB-C823-1278GB

_This symbol refers to interesting tips andadditional information.

Attention!This symbol warns you of damage. This symbolwarns you about instructions which should beobserved to avoid possible damage toequipment, other items in the vicinity or data.Warning!This symbol warns you of serious damage. Otheritems in the vicinity or data may be seriouslydamaged or destroyed. Persons may beseriously or fatally injured.507/98 AWB-C823-1278GB

1 About The Product FamilySystem overviewThe frequency inverters have a type designationbased on the following code. The type code forfrequency inverters shows its position in the Moellerproduct family:Figure 1: Structure of type code

The following example shows the type code for atypical frequency inverter.Figure 2: Type code for frequency invertersDF4 - x x x - yyyVersion and type numberMotor rating codeReference: EU rated voltageMains connection voltage code (EU rated value)2 = 230 V (190 ... 260 V 0 %)

4 = 400 V (320 ... 510 V 0 %), l 460/480 V (USA)Mains connection phase code1 = single/two-phase3 = three-phaseSeries name:Drives Frequency Inverter, Generation 4DF4 - 1 2 0 - 075Motor connection rating: 0.75 kW at 230 VVersion number: 0230 V, Mains voltage1 = single/two-phase mains connectionSeries name:Drives Frequency Inverter, Generation 4

System overview6

07/98 AWB-C823-1278GBFrequency inverters of the DF4 series convert thevoltage and frequency of a 3-phase mains supply toa DC voltage and then generate 3-phase power withvariable voltage and frequency. The variable 3-phasepower output allows continuous adjustment of thespeed of rotation of 3-phase asynchronous motors.Figure 3: Block diagram of a frequency inverter

_ Mains voltage (ULN):1(2) _ 230 V, 50/60 Hz (DF4-120)3 _ 400 V, 50/60 Hz (DF4-340, DF4-341)3 _ 460 V, 50/60 Hz (DF4-340)3 _ 480 V, 50/60 Hz (DF4-341)

_ 3-phase rectifier bridge converts AC power to DC._ DC internal bus with charging resistor and smoothingcapacitor.


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DC voltage (UZK) = _ Mains voltage (ULN)_ The IGBT chopper converts the DC bus voltage to3-phase power with variable voltage and frequency.

_ Output voltage (U2):3-phase AC with variable voltage, 0 to 100 % of themains voltage (ULN)Output frequency (f2):

3-phase AC with variable frequency, 0 to 480 Hz_ Rated output current (I2N):2.4 to 180 A; starting current 1.5 higher at a max.ambient temperature of 40 CMotor shaft rating (P2):0.37 to 2.2 kW at 230 V0.75 to 90 kW at 400 V__ _ ___M

3 _2System overview707/98 AWB-C823-1278GB

_ Programmable control components contain modules tocontrol the power section. They process the controlcommands, setpoints and actual values.Features of the frequency inverter familyDF4-... ...-120 ...-340 ...-341Compact construction XXXUp to 150 % IN overload for 1 min XXXChopper output short-circuit proofXXXEarth fault test during power up XXXEarth fault proof under all operating conditions X

Chopper frequency 9.2 kHz X Chopper frequencyoptionally 4 kHz, 8 kHz, 12 kHz, 16 kHz XXU/fcharacteristic control with constant Umin boost or auto-boost X Optionally either motor current control or U/fcharacteristic control XXMains voltage compensation XXXMotor slip compensation XXXConfigurable U/fcharacteristic with adjustable current limits XXXPWM chopper with IGBT output stages XXXConnections for interconnected DC bus and brake unit XXXGalvanically isolated analog input/output XXXRelay output (changeover contacts) 1 1 2Galvanically isolated digital inputs with programmable functions 4 4 4

Up to three jog frequencies per parameter set XXXDC injection brake XXX

TRIP-set and TRIP-reset functions XXXMotor potentiometer XXXOutput frequency up to 240 Hz (480 Hz with limitations) X Output frequency up to 480 Hz XXMotor flying restart circuit XXX

Two parameter sets XXXRunning time meter, power on time meter XXXVersion selection criteria807/98 AWB-C823-1278GB

Version selectioncriteria

The main factor when choosing the correct model offrequency inverter is the rated motor current. The


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rated output current of the frequency inverter mustbe the same as or larger than the rated motor current.The following motor data must be known: XType of motor (3-phase asynchronous motor),Mains supply voltage = supply voltage of motor(3 AC; 400 V),

Rated motor current (guiding value, dependenton the method of connection and motor supplyvoltage),Torque characteristics (quadratic or constantcharacteristic, with starting torque factor 1.5higher),Ambient temperature (max. temperature 40 C).

Temperate-dependent ventilator control XInput for PTC motor temperature monitoring XPlug-in accessories for control and parameter settingOptional LCD keypad DE 4-KEY-1 with parameter buffer XXXRS 232/485 interface module DE 4-COM-2X XXXInterBus-S fieldbus module DE 4-NET-S XXXPROFIBUS-DP fieldbus module DE 4-NET-DP XXXSuconet-K fieldbus module DE 4-NET-K XXDF4-... ...-120 ...-340 ...-341

_When connecting several motors in parallel to theoutput of the frequency inverter, the motorcurrents are added geometrically, i.e. separatelyfor the in-phase current and the reactive currentcomponents. The rating of the frequency invertershould be chosen to be large enough to supplyboth the total apparent current and the reactivecurrent components.

Version selection criteria907/98 AWB-C823-1278GB

The rated output current of the different models offrequency inverter can be found in the Appendixunder Technical Data.

_If a motor is connected to the output of thefrequency inverter when the latter is alreadyunder power, the motor initially takes a currentwhich is several times higher than its rated

current. If this situation can arise, you shouldchoose the rating of the frequency inverter suchthat the starting current plus the sum of currentsof the running motors does not exceed the ratedoutput current of the frequency inverter.Version selection criteria1007/98 AWB-C823-1278GB

Power losses PVThe power loss PV of the frequency inverter isdependent on the operating state of the connectedmotor. The values in the following table relate torated values for the motor parameters (motor

operating at rated motor power, 4 pole ASM) at anambient temperature of 40 C.Model Power loss PV


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in WMotor rated powerin kWat ULN = 230 VDF4-120-037 30 0.37DF4-120-075 50 0.75DF4-120-1K5 70 1.5

DF4-120-2K2 100 2.2at ULN = 400/460 VDF4-340-075 55 0.75DF4-340-1K5 75 1.5DF4-340-2K2 90 2.2DF4-340-3K0 100 3DF4-340-4K0 150 4DF4-340-5K5 200 5.5DF4-340-7K5 280 7.5DF4-340-11K 400 11at ULN = 400/460/480 VDF4-341-15K 430 15DF4-341-22K 640 22DF4-341-30K 810 30

DF4-341-45K 1100 45DF4-341-55K 1470 55DF4-341-75K 1960 75DF4-341-90K 2400 90Version selection criteria1107/98 AWB-C823-1278GB

Admissible environmental influencesProtection class:IP 20 at an ambient operating temperature of 0 to_40 C.Installation height:Up to 1000 m above sea level; above this height the

rated current drops by 5% per 1000 m additionalheight.Temperature:Operation Ta = 0 to _40 C at rated current I2N.Above _40 C to Tmax = _50 C theoutput current drops by 2.5% per Kelvintemperature rise (better than class 3K3to EN 50 178).Storage Ta = 25 C to _55 C(Class 1K4 to EN 50 178)Transport Ta = 25 C to _70 C(Class 2K3 to EN 50 178)Relative humidity:

Operation 5 % to 80 %, 1 g/m3 to 25 g/m3 withoutcondensation or icing(Class 3K3 to EN 50 178)Storage 5 % to 95 %, 1 g/m3 to 25 g/m3 withoutcondensation or icing(Class 1K3 to EN 50 178)Transport 95 %, highest relative humidity, if thetemperature increases slower than 40 Kor if the device is heated up directly from25 C to _30 C.60 g/m3, highest absolute air humidity, ifthe device is heated up directly from_70 C to _15 C.

Intended use12


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07/98 AWB-C823-1278GB

Intended use Frequency inverters of the DF4 series are electricalcomponents for installation in control cabinets ofelectrical equipment or machines.The units of the DF4 series are intended for use ascomponents to control variable speed drives with

3-phase motors for installation in machines orassembly together with other components to formmachines or equipment.When installing in machines, the commissioning ofthe frequency inverter is not permissible until it hasbeen determined that the machines it is assigned tomeet the safety requirements of the MachineryDirective 89/392/EEC; EN 60 204 must also beobserved.Use of the equipment is only allowed if it complieswith the EU EMC Directive 89/336/EEC.The frequency inverters meet the requirements of theEU Low Voltage Directive 73/23/EEC.

The harmonized standardEN 50 178/DIN VDE 0160 in conjunction withEN 60 439-1/DIN VDE 0660 Part 500 andEN 60 146/DIN VDE 0558 apply to the frequencyinverters.Air pressure:Operation 86 kPa to 106 kPa(Class 3K3 to EN 50 178)Storage 86 kPa to 106 kPa(Class 1K4 to EN 50 178)Transport 70 kPa to 106 kPa(Class 2K3 to EN 50 178)Intended use

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The output of the frequency inverter(terminals U, V, W) should not beconnected to a voltage or capacitive load (suchas phase compensation capacitors)you must not connect several frequency invertersin parallel at their outputs;you must not make any direct connection back tothe input of the frequency inverter (bypass).Observe the requirements of the technical data andconnection requirements. Refer to the equipmentnameplate or label and the documentation for more

details.DF4 series devices aresuitable for use in public and private mainsnetworksare not household devices but are componentswhich are solely for use in commercialapplications;are not machines as covered by the EU MachineDirectives;in the system configurations described suitablefor industrial, domestic and commercialapplications.comply in typical drive configurations with the EUEMC Directives and the EU Low-VoltageDirective for the specified standards.


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Storage, transport,recycling1407/98 AWB-C823-1278GB

The user is responsible for compliance with the EECDirectives in machine applications.

Due to the PE connection required by the radiointerference suppression filter, the CE-typical drivesystem described in the manual is not suitable forconnecting to IT protective systems (mains supplieswithout reference to earth potential).Any other usage constitutes improper use.Storage, transport,recyclingThe DF4 series frequency inverters are carefullypacked and prepared for shipment. Transport mayonly take place in the original packing using suitablelifting and transport devices (see weight details).Observe the information and instructions on the

packaging. The instructions also apply to theunpacked equipment.After receiving the delivery,check whether the packaging has been damagedexternally;check whether the details on the delivery notematch your original orderOpen the packaging with suitable tools and checkwhether:parts have been damaged during transport;the equipment corresponds to the model whichyou ordered;the assembly instructions are also present.

Storage, transport,recycling1507/98 AWB-C823-1278GB

In case of damage, incomplete or incorrectshipment, please make your claim directly to theresponsible sales office.If the frequency inverter has been stored for morethan 2 years without use, the capacity of thecapacitors for the internal DC bus may be impaired.Before using the frequency inverter, connect it to themains supply without load for 2 hours in order toregenerate the capacitors.

According to the currently valid national regulations,frequency inverters of the DF4 series can be recycledas electronic scrap.1607/98 AWB-C823-1278GB

2 EngineeringEMC complianceEMC = Electro Magnetic Compatibility.EN 55 011 is a product family standard for devicesused in medical scientific and medical applications.Apart from the filtering required on the mains supply,design measures affecting construction and thewiring are also necessary to achieve the reduction ofradio interference emission in accordance withEN 55 011 limit value class A and B. Poor earthing


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and screening will also reduce the effect of theinterference suppression filter. The required levels ofradio interference can only be maintained throughthe combination of suitable filters and correctinstallation.

_The EU Directive 89/336/EEC has beenapplicable for the European Commercial Region(EU and EFTA) since 1stJan. 1996. This containsthe radio interference limit values for variablespeeddrives in relation to standardEN 55 011.The relevant EMC product standard(EN 61 800-3) takes into account thecombination of frequency inverter, cables andmotor.EMC compliance1707/98 AWB-C823-1278GB

ConstructionConnect together all metal components of theequipment and/or cabinet using a large-area contactsurface; ensure that the connection has a lowimpedance. If possible, avoid painted surfaces(e.g. Eloxal or yellow chrome coating) and usecontact washers or serrated washers. If severalmounting plates are used, connect them togetherand connect cabinet doors to the cabinet using shortruns of RF braiding which contacts the componentsover a large surface.Mount the mains filter and the frequency inverter on

a metal plate, and as close to each other as possible(See figure 4).Lay cables in the control cabinet as close as possibleto the 0 V potential. Cables which hang freely act asantennas.Noise protected cables (e.g. mains supply cables infront of the filter) and signal cables should be kept asfar apart possible from cables with high RF noise(e.g. mains supply cables behind the filter, motorfeeders), in order to prevent interference coupling.Never use the same cable duct for laying these twotypes of cable.Never lay control or signal cables in the same duct as

power cables. Analog signal cables (for measuredvalues, setpoints and correction values) must bescreened.EMC compliance1807/98 AWB-C823-1278GB

EarthingConnect the earth plate (mounting plate) with theprotective earth using a short cable. All conductivecomponents (frequency inverters, mains filters,motor filters, mains chokes) must be connected tothe RF braid which must be laid from a centralearthing point from the protective conductor. This

will ensure optimum results (See figure 4).Filtering


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Motor chokes and motor voltage filters areparticularly effective for reducing higher frequencyinterference and are connected directly to the outputof the frequency inverter. The characteristics of themotor voltage filters should be matched to thechopper frequency of the frequency inverter.

Only use mains filters, radio interference suppressionfilters and mains chokes which are intended for usewith the frequency inverter, motor etc. Radiointerference suppression filters reduce inadmissiblehigh frequency interference to an acceptable level.Mains chokes reduce low frequency interference.Mains filters combine the function of the mainschokes and radio interference suppression filters.EMC compliance1907/98 AWB-C823-1278GB

ScreeningThe effectiveness of a screened cable is dependent

on the good connection of the screening and lowscreen impedance. Only use screens with tinned ornickel plated copper braiding; screens from steelbraiding are unsuitable. The screen braid must offera degree of covering of at least 70% to 80% and thebraiding angle should be 90.Keep the motor feed cable between the frequencyinverter and the motor as short as possible. Toobserve the limit values in accordance withEN 55 011 the cables must be screened. Connectthe screening of the motor feed cable to earth at bothends of the cable using a large-area contact surface.Unbraiding of the screening and earth connection

using pigtails is not permissible (See figure 4).The screening of control of signal cables must onlyconnect at one end of the cable. Make sure thescreen connects to earth using a large-area contactsurface; ensure that the connection has a lowimpedance. This screen of digital signal cables mustbe connected at both ends of the cable. If earthpotential differences are present, an additionalpotential equalisation cable should be fitted,particularly in the case of long cable runs or cableswhich go to other equipment or components. In thecase of interference caused by contactors, magneticvalves etc. to control or signal cables, fit an RC filter(for AC circuits) or freewheeling diode (for DCcircuits) to the respective winding.EMC compliance2007/98 AWB-C823-1278GB

If contactors, motor protective switches or terminalsare installed in the motor cabling, interconnect thescreens of the cabling on both sides of thesecomponents and connect the screens with themounting plate using a large-area contact surface.If the cable between the mains filter and thefrequency inverter is longer than 300 mm, the cablemust be screened at both ends and connected to themounting plate using a large-area contact surface(See figure 4).


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If a brake unit is used, connect the screen of thecable for the braking resistor directly to the brake unitand to the mounting plate of the braking resistorusing a large-area contact surface. Connect thecable screen between the frequency inverter and thebraking unit at both ends and connect to the

mounting plate using a large-area contact surface.When using DF4-34x series frequency inverters inresidential areas, you must provide additionalscreening with an effectiveness of _10 dB to reduceinterference. This is normally achieved by installingequipment in standard, closed metal controlcabinets or switch boxes that are properly earthed.Changes in correct gaps provided for insulationpurposes or the removal of insulation or cover platesis not admissible since the equipment will no longercomply with the EMC and/or Low-Voltage Directives.The user of the equipment is responsible for ensuringthat the machine application complies with the

relevant EU Directives.EMC compliance2107/98 AWB-C823-1278GB

_ Cable protective fuses_ Frequency inverter_ Motor filter_ Motor_ Radio interferencesuppression filter

_ Mains chokeFigure 4: Overview of screening measures and installation

______L1L2L3PELINELOAD

EMC compliance2207/98 AWB-C823-1278GB

CE requirements for the installation of the drive

systemIf other equipment is in use in the vicinity of thefrequency inverter which does not meet the CErequirements with respect to interference immunityEN 50 082-2, this equipment can be affectedelectro-magnetically by the frequency inverter.In the case of installations which deviate from therecommendations in this section of the manual, suchas:use of unscreened cables,use of central interference suppression filtersinstead of radio interference suppression filtersmatched to the equipment,failure to install mains chokes,then the machine or plant must be tested for


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compliance with the EMC limiting values to assessits compliance with the EMC Directives.Protection of personnel and domestic animals toDIN VDE 0100 with earth leakage circuit-breakersFrequency inverters contain a mains rectifier. A DCfault current caused by an earth fault can prevent the

release of classical residual current circuit-breakers.For this reason we recommend the use of:pulse-residual current circuit-breakers forequipment containing DF4-120 frequencyinverters, andall-current sensitive residual current circuitbreakersfor equipment containing DF4-340 andDF4-341 frequency inverters.Mains networkconfigurations2307/98 AWB-C823-1278GB

When choosing the tripping current, please note that

capacitive equalisation currents in the cable screensand radio interference suppression filters whichoccur during normal operation can trip circuitbreakersunintentionally.Mains networkconfigurationsNot all frequency inverters of the DF4 series aresuitable for unrestricted use with all types of mainsnetwork configuration:Mains network configurationswith an earthed star point can be used withfrequency inverters of the DF4 series withoutlimitation. Please observe the technical

specification for the DF4 series frequencyinverters.For mains network configurations with an earthedstar point and interconnected operation, there isa limitation for DF4-120 series frequencyinverters. For 3 AC/N/P mains networks andsymmetrical distribution of current across thethree phase conductors, it must be ensured thatthe mains r.m.s. current does not exceed therated capacity of the common N conductor. Ifnecessary, increase the cross-section of theN conductor.For mains network configurations with isolatedstar point (IT networks), frequency inverters cannotbe used with the recommended mains filter. Themains filter will be destroyed if an earth fault occurs.Please contact the supplier for furtherinformation.Mains network configurations with earthed phaseconductor are not suitable for standard frequencyinverter models. Please contact the supplier forfurther information.Mains networkconfigurations2407/98 AWB-C823-1278GB

For operation with the DC-supply via _UG/UG,the DC voltage must be symmetrical to the PE.


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DF4 series frequency inverters will be destroyedif the _UG conductor or UG conductor isearthed.Power cabling2507/98 AWB-C823-1278GB

Power cabling_ Cable protective fuses_ Mains choke_ Radio interferencesuppression filter

_ Frequency inverter_ Motor filter_ Motor_ Braking unitFigure 5: Power cabling

____

L1L2L3PEU V WPE

_PEU2+UGUGV2 W2

__PE+UGUGRB1 RB2 PE

M

3 _ _Power cabling2607/98 AWB-C823-1278GB

The output of the frequency inverter(terminals U, V, W) should not beconnected to a voltage or capacitive load (suchas phase compensation capacitors)you must not connect several frequency invertersin parallel at their outputs;

you must not make any direct connection back tothe input of the frequency inverter (bypass).Protection of the power section should be selectedaccording to the mains network configuration used.Cable and device protection for AC circuits:AC input: use standard commercial cableprotection fusesFuses for UL compliant equipment must meet ULapprovalThe rated voltages of the fuses must be chosenaccording to the mains voltage at the installationsite. Use devices with tripping characteristicsdefined with H or k5

Protection devices for cables and equipment in DCcircuits:


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DC inputs..., use the recommended DC fuses.In the case of DC power feed or DC power feed withinterconnected operation, fuses F4 and F5 can beimplemented by connecting several fuses in parallel.You can also use cables connected in parallel.

_The fuses and cross-sections listed in theAppendix do not apply when connecting abraking unit to terminals _UG/UGH. Refer tothe technical documentation of the braking unitfor further details.Power cabling2707/98 AWB-C823-1278GB

Cables, contactors, mains filtersThe cable types used must comply with theappropriate regulations at the installation site.Please refer to the section on EMC compliance in theEngineering chapter for information on installing andconnecting up cables to meet the EMC regulations.The correct type of mains filter, mains choke, radiointerference suppression filter and mains contactorfor the chosen frequency inverter model is describedin the Appendix under Mains filter/Mains contactor.Information on the correct fuses and cable crosssections for the incoming and outgoing cables aredescribed in the Appendix under Fuses/cable crosssectionsIncoming conductors AC: L1, L2, L3, N, PE(depending on model)Incoming conductors DC: _UG, UG, PE

(all models)Outgoing conductors: U, V, W, PEThe information in the Appendix applies to:installation in control cabinets and machines,cable installation in cable ducts,maximum ambient temperature _40 C.

_Always connect the frequency inverter to theearth circuits using the designated PE terminaland using the housing. Always observe theregulations on the minimum cross-section of PE

cables to use (EN 50 178, VDE 0160). The crosssectionof the PE conductor must be at least aslarge as the cross-section of the power terminals(_10 mm2).Motor types andconnections2807/98 AWB-C823-1278GB

Fuses and cable cross-sections are dependent onthe power rating of the frequency inverter and theoperating mode.Motor types andconnections

DF4 series frequency inverters are designed forapplications with three-phase asynchronous motors.The use of pole-changing three-phase motors


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(Dahlander), three-phase motors with slip rings(slipring motors) or reluctance, synchronous andservo motors is also possible. When using thesemotors check that the requirements of theapplication (machine) and of the motor manufacturercan be fulfilled.

The switching devices for the motor must meet thefollowing DC voltage requirements:DF4-120 with UDC max. 400 VDF4-34x with UDC max. 800 V

_When choosing the cable cross-sections, rememberto allow for the voltage drop under load. Compliancewith other standards (e.g. VDE 0113, VDE 0289) isthe responsibility of the user.

_Full motor protection to VDE standards is

achieved by the use of overcurrent relays andtemperature monitoring. This is also obligatoryfor group operation (motors connected in parallelto a single frequency inverter). PTC thermistorsor temperature switches with PTCcharacteristics are the most suitable devices formonitoring the motor temperature.Attention!Motors with insulation that is not suitable for usewith frequency inverters may be destroyed ifused. Contact your motor supplier for further

details. Operation with the appropriate motorfilters is normally possible.Motor types andconnections2907/98 AWB-C823-1278GB

The output frequency of the frequency inverterdetermines the rotary speed of the 3-phase motor. Ifyou want to operate the motor above the ratedspeed/rated frequency, it is necessary to observe thetechnical data from the motor manufacturer formechanical reasons (bearings, motor balancing, ...).This is also necessary when operating the motor for

extended periods at a frequency below 25 Hz. Thiscan reduce the motor ventilation to an unacceptablelevel leadng to overheating. Countermeasuresinclude overdimensioning or the use of an additionalventilator.Three-phase motors can be operated with variouscircuit configurations. To a degree, the circuitconfiguration is dependent on the rated power of themotor. With mains supplies of 3 _ 400 V they aretypically connected as followsup to approx. 4 kW: star connection (230/400 V)above 4 kW in delta connection (400/690 V)Figure 6: Circuit configuration

Attention!The frequency inverter parameter PNU 011allows you to configure the maximum output


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frequency (max. 480 Hz). Ask the motormanufacturer if the motor is suitable for suchfrequencies. The use of unsuitable motors canresult in dangerous overspeeds and/or destroythe machine.U1 V1 W1W2 U2 V2

U1 V1 W1W2 U2 V2

Motor types andconnections3007/98 AWB-C823-1278GB

Frequency inverters of the DF4 series are configuredin the factory for clockwise (CW rotation) of theoutput signal. Interconnect the motor and thefrequency inverter as follows to ensure that the motorturns in a CW direction with the standard settings forthe frequency inverter:Figure 7: Direction of rotation

You can reverse the direction of the rotation of the

motor as follows:by exchanging two of the phase connections onthe motor (see figure)by connecting terminal E4 = LOW (CW),by connecting terminal E4 = HIGH (CCW),by changing the polarity of the setpoint using theserial interface module.Motor DF4U1V1W1UVWU1 V1 W1W2 U2 V2U1 V1 W1W2 U2 V2

Motor types andconnections3107/98 AWB-C823-1278GB

Length of motor cable and admissible operatingmodeTo ensure EMC compliance you must only usescreened motor cables. The length of the motorcables and the related use of further components

affects the motor control mode and the operatingbehaviour. The motor control mode is configuredwith PNU 014. The resulting cable length lres must becalculated as follows for group operation (severalmotors in parallel on one frequency inverter):lres =Total of all motor cable lengths _Try to keep the motor cables as short as possiblesince this has a positive effect on the response of thedrive.Speak to the supplier if the absolute or resultingcable lengths for the motor are _200 m due to theconfiguration requirements at hand.When using unscreened motor cables, refer in the

table below to the column for a motor cable which istwice as long.


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Number of motor cables

_In the case of long motor cables and frequencyinverters with lower rated output power, leakagecurrents through parasitic cable capacitance cantrigger the fault message OCx. Use a motorfilter in such cases.Circuit types3207/98 AWB-C823-1278GB

Motor control mode versus motor cable length(PNU 014)Circuit types Standard connectionThe frequency inverter is normally operated with theinternal power supply and factory settings.Screening and installation must meet EMCregulations as described in the section EMCcompliance.Motor cable length(screened)up to 15 m up to 25 m up to 50 m up to 100 m up to 200 m

DF4-120 0, 1, 2, 3 2, 3 2, 3_Motor filter2, 3_Motor voltageDF4-340-1K5 2, 3, 4 2, 3 filterDF4-340-2K2 2, 3, 4DF4-340-3K0 toDF4-340-11K2, 3, 4DF4-341-15K,DF4-341-22K2, 3DF4-341-30K toDF4-341-90K2, 3Circuit types3307/98 AWB-C823-1278GB

Figure 8: DF4-120L01S0L00K0 K1M Z2S2 K1MS1

K0Emergency StopOn/StartEmergency Stop On/OffStart/StopOff/Stop

Circuit types3407/98 AWB-C823-1278GB

Figure 9: DF4-120L1L2L3NPEF1

K1M12


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Z1L1 N PE

G1+UG UG U V W PEPESPES

M1K12 K14 K11E1 E2 E3 E4

K1M28 20 39E1: 20 HzE1+E2: 40 HzE2: 30 HzDC-BRAKEREVEN+12 V0 V 0 V1REF+5 VMONITORK162 9 8 7

2 kM R1

3 hCircuit types3507/98 AWB-C823-1278GB

Figure 10: DF4-340L01S0L00K0 K1M Z2S2 K1MS1K0Emergency StopOn/StartEmergency Stop On/Off

Start/StopOff/Stop


Figure 11: DF4-340K1ME1: 20 HzE1+E2: 40 HzE2: 30 HzDC-BRAKEREVEN+15 V0 V 0 V1

REF+5 VMONITORK12 kR1

L1L2L3NPEG1+UG UG U V W PE

M1K12 K14 K11

E1 E2 E3 E4 28 20 3962 9 8 7

M


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3F1 3PES PES

L1 L22 4 61 3 5K1MPE

L1L3Q1> I > I > I

Z1


Figure 12: DF4-341L01S0L00K0 K1M Z2S2 K1MS1K0Emergency StopOn/StartEmergency Stop On/OffStart/StopOff/Stop

Circuit types3807/98 AWB-C823-1278GBFigure 13: DF4-341L1 L2+15 VL1L2L3N

PEG1+UG UG U V W PE

M1K12 K14 K11E1 E2 E3 E4 28 20 3962 9 8 7

M3K1ME1: 20 HzE1+E2: 40 HzE2: 30 HzDC-BRAKEREVEN0 V 0 V1

REF+5 VMONITORK12 kR1

T1 T2 K22 K24 K21

K2PES PES

21 3 5K1M 4 6PEL1

L3F1 3 Q1> I > I > I


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Z1


Parallel connection of several motors to onefrequency inverterThe DF4 series frequency inverters can controlseveral motors connected in parallel. This is alsocalled group operation. If it is necessary for themotors to turn at different speeds, this must beachieved by choosing motors with a different numberof pole pairs and/or by using gearboxes.Figure 14: Parallel connection of several motorsK1MF1M1U1 V1 W1

K2MF2M2U1 V1 W1

K3MF3M3U1 V1 W1

M

3 M

3 M

3 Circuit types4007/98 AWB-C823-1278GB

If motors are connected in parallel, this reduces theload impedance at the output of the frequencyinverter. The overall stator inductance decreases andthe stray capacitance of the cables increases. Whencompared to the use of single motors this can lead tocurrent distortion. Use chokes or mains voltagefilters at the output of the frequency inverter toreduce the current distortion.Attention!If you connect several motors to a singlefrequency inverter in parallel, you mustdimension the mains contactors of each of themotors to AC3. You must not choose the mains

contactors from the table Mains filters/mainscontactors in the Appendix. These mainscontactors are only for use on the incomingmains side of the frequency inverter. If they areused incorrectly, the contacts may weld.

_The current consumption of all connectedmotors should not exceed the rated outputcurrent I2N of the frequency inverter.

_If several motors are connected in parallel, it is

not possible to use electronic motor protection.


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You must protect each motor separately with athermistor and/or a bimetal relay.Circuit types4107/98 AWB-C823-1278GB

Problems may occur at the start and at low speeds

when the frequency inverter output has beenconnected to motors with greatly differing ratings(e.g. 1.5 kW and 11 kW). In some cases, the motor withthe smaller rated power cannot produce the requiredtorque. This is due to the relatively large ohmicresistance in the stators of such motors. They requirea higher voltage during startup and at low rotaryspeeds.Operation with interconnected internal DC busParallel operation of several frequency inverters withinterconnection of the internal DC bus allows DCenergy to be exchanged between the motors. If oneor more of the frequency inverters are operating as a

generator (braking mode), energy is recovered andfed back to the common DC bus and/or back to theDC power feed. The energy can then be used by theinter-connected frequency inverters which areoperating in motor mode. This can reduce the use ofbrake units and reduce the energy consumption fromthe mains power supply.If you want to operate frequency inverters with aninterconnected DC bus, you must only use frequencyinverter models with the same DC bus voltage range,e.g. DC 270 to 360 V or DC 320 to 510 V. The cableconnections to the common DC bus must be keptshort.


Choose the cable cross-sections for +UG/UG fromthe table Fuses/cable cross-sections in theAppendix.You can achieve a low cable inductance by usingseveral DC busbars connected in parallel and usingseveral power cables in parallel between thefrequency inverters and the shared DC busbar; twistthe cables if necessary.Only use the specified mains chokes/mains filtersand DC bus fusing.

Make sure that it is possible to switch on the mainsfeed to all interconnected frequency inverterssimultaneously.

_In the case of the DF4-120 series frequencyinverters, make sure that the phase conductorsare connected up the same way for all of them.

_If you want to operate different series offrequency inverters with an interconnected DCbus, please contact the supplier for furtherdetails.


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Interconnected DC bus, model DF4-120Figure 15: Single-phase AC main feed with interconnectedDC busL1

L2L3NPEF1K1ML1 N PE

G1 G2+UG UG U V W PE

F11 F21+UGUGM

M1 3~F2K2M

L1 N PE+UG UG U V W PE

M

M2 3~K1M Mains contactor, with incomer for 2 AC; PE;190 to 260 V _0%; 45 to 65 Hz _0%single-phaseF1 Circuit protection, with incomer for 2 AC; PE;190 to 260 V _0%; 45 to 65 Hz _0%single-phaseF4, F5 Equipment protection for the DC circuits, asspecified by tableZ1 Mains choke/mains filterG1, G2 Frequency inverterCircuit types4407/98 AWB-C823-1278GB

Interconnected DC bus, model DF4-34xAttention!The contacts of all mains contactors must switchsimultaneously. The input rectifier may otherwisebe destroyed due to multiplication of thecharging currents.Attention!Combined operation of DF4-340 and DF4-341series frequency inverters is only admissible ifthe rated mains voltage range of the DF4-340series is not exceeded. Please refer to theAppendix for more information.Attention!The contacts of all mains contactors must switchsimultaneously. The input rectifier may otherwisebe destroyed due to multiplication of thecharging currents.Circuit types4507/98 AWB-C823-1278GB

Figure 16: Single-phase AC main feed with interconnectedDC busM

M1 3~

L1L2L3


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NPEF1K1ML1 L2 PE

G1+UG UG U V W PE

F11

+UGUGL3

M

M2 3~F2K2ML1 L2 PE

G2+UG UG U V W PE

F21L3

K1M Mains contactorF1 Cable protectionF4, F5 Equipment protection for the DC circuitsL1 Mains choke/mains filter

G1, G2 Frequency inverterZ1 Radio interference suppression filterCircuit types4607/98 AWB-C823-1278GB

DC power supplyModels DF4-340 and DF4-341Figure 17: DC main feed with interconnected DC bus

Warning!When feeding the devices via a DC voltagesource ensure that the voltage between _UGand PE, as well as UG and PE is symmetrical. If_UG or UG is earthed, the frequency inverterwill be destroyed.

_The DF4-120 series frequency inverters are onlyavailable for DC power feed on request.L1L2L3NPEL1 L2 PE

G1+UG UG U V W PE

F4 F5+UG

UGL1 PE+UG UG U V W PE

G2L3 L2 L3 PE+UG UG

G3F4, F5 Equipment protection for the DC circuitsG1, G2 Frequency inverterG3 Brake unitConnecting the controller4707/98 AWB-C823-1278GB

Connecting thecontrollerInternal power feedThe DF4 series frequency inverters provide twointernal voltages which are available at the following


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terminals:Terminal 9 for analog setpointTerminal 20 for enable signalsTerminal 7 0V potential for both signalsFigure 18: Internal power feedTerminal Output voltage Rating

9 5.2 V 6 mA20 12 V for DF4-12015 V for DF4-34x20 mAUG+UGDF 4-...20

7 0 V9 +5.2 V

Connecting the controller4807/98 AWB-C823-1278GB

Earthing the 0 V potential (terminal 39)With standard operation of the frequency inverters, it

is necessary to earth the 0 V potential of the controlsignal inputs (terminal 39). You should use a cablecross-section of min. 1.5 mm2 for this purpose. Ifterminals E1 to E4 and terminal 28 are supplied bythe internal power feed (terminal 20), it is necessaryto interconnect the 0 V potential of the voltageregulator (terminal 7) and the 0 V potential of thecontrol signal inputs (terminal 39). This is done bybridging terminal 7 and terminal 39.Figure 19: Earthing of 0 V potential

If you want to install several frequency inverters orautomation devices in a single system, the 0 Vpotentials of each of the devices must be

interconnected point-to-point in a star arrangement.Each of the devices must be commonly earthed atthe weakest participant, e.g. a PLC.DF 4-...20798E1E2E3E42839

EN0 V0 V1.5 mm

2.5 mm22

0 V


Figure 20: Earthing with star arrangement

Digital Inputs, PLC interconnectionThe digital inputs of the DF4 series frequencyinverters are optically and galvanically isolated. Thisallows them to be directly connected to aprogrammable logic controller (PLC). For greaterinterference immunity earth the 0V potential of the

control inputs (terminal 39) via an unpolarizedcapacitor (0.1 _F, 250 V DC).


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If terminals E1 to E4 and terminal 28 are supplied byan external power feed provided by the PLC, the0 V potential of the PLC must be connected to the0 V potential of the control signal inputs (terminal 39).39

1.5 mm2 1.5 mm_ 6 mm 2

_ 10 mm27 39 72 1.5 mm2

Connecting the controller5007/98 AWB-C823-1278GBFigure 21: Interconnection with a PLC

If several frequency inverters are controlled by thesame PLC within the same system, interconnect the0 V potentials of all of the devices point-to-point in astar arrangement. The devices must be jointlyearthed at the weakest participant, i.e. the PLC. Inaddition, terminal 39 must be capacitively earthed ateach frequency inverter. The 0 V potential of the PLC

can be directly earthed.Figure 22: Earthing when a PLC is usedE1E2E3E42839

Q...Q...Q...Q...Q...0 VEN0 V+24 V

0.1 F 1.5 mm2250 V Hf2.5 mm239 39

1.5 mm2Q... (+24 V)0.1 F250 V H 1.5 mm20.1 F250 V H1.5 mm2


Input for analog setpoint

The analog setpoint signal is connected to terminal 8and the 0 V potential of analog setpoint signal isconnected to terminal 7. The type and range of thesetpoint input is specified using jumpers on the frontof the frequency inverter.Figure 23: Setpoint entry from a potentiometer with internal

power feedFigure 24: Setpoint entry from a PLCR12 kDF 4-...20798

1.5 mm

2.5 mm2

0 V


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0 V+5.2 VREFS1: 0 ... +5 V2

DF4-...2079

81.5 mm2.5 mm22

0 V0 V+5.2 VREFS1: 0 ... +10 V0 VQAx.x

Connecting the controller5207/98 AWB-C823-1278GBFigure 25: Master setpoint signal for several frequency

invertersSetpoint input with current loop signalParameter PNU 034 is used to specify a current loopsignal of 0 to 20 mA or 4 to 20 mA. The internal loadresistance is 250 _.Figure 26: Analog setpoint with current loop signalR12 k9 8 7 7

+5.2 V0 ... +5.2 V_ 2.5 mm28

1.5 mm 2 1.5 mm 2DF 4-...

20798

1.5 mm2.5 mm22

0 V0 V+5.2 VREFS1: 0 ... +20 mA0/4 20 mA


Speed setpoint input with current loop signalFigure 27: Master setpoint input with current loop signal

Attention!With this arrangement of frequency inverters, donot earth the 0 V potential (terminal 7) of theinternal power feed since this would cause ashort-circuit of the setpoint signal.8 7 7

_ 2.5 mm 28


Analog output

An analog measuring device can be connected toterminal 62 of the frequency inverter. Parameter


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PNU 111 is used to specify which monitor signal isoutput to this terminal. The default setting is theoutput frequency. The maximum voltage range atterminal 62 is 0 to 6 V.Figure 28: Connecting a meter to the monitor signal

Relay outputs

The DF4-120/DF4-340 series frequency inverters areprovided with a relay K1 with changeover contacts.The DF4-341 series frequency inverters are providedwith a second relay K2 with changeover contacts.The assignment of signals to the relay contacts isprogrammable. The relay contacts are galvanicallyisolated from the frequency inverter.62 Monitor20

7 0 V9 +5.2 V0 V2.5 mm 2P1DF 4-...

DA1.5 mm 2


When connecting external contactors or relays to achangeover contact, you can increase the noiseimmunityby connecting an RC filter in parallel (AC circuit)by connecting a free-wheel diode in parallel(DC circuit)Figure 29: Relay connection for DC or AC circuit

_ AC circuit_ DC circuitK12 K14 K11

_ _Kx KyL00 LL01 L+Terminal Assignment Use RatingDF4-120/DF4-34xK11 Break contact of K1 Programmablechangeover contacts24 V AC/3 A orK12 Group of K1 60 V DC/0.5 AK14 Make contact of K1Series DF4-341 only:

K21 Break contact of K2 Programmablechangeover contacts250 V AC/3 A orK22 Changeover contact of K2 60 V DC/0.5 AK24 Make contact of K25607/98 AWB-C823-1278GB

3 Setting ParametersBasic principlesThe purpose of setting parameters for the frequencyinverter is to adapt it to your application. The settingsare grouped together in different parameters whichare identified by parameter number (PNU).The parameters are set either with the keys of the

LCD keypad DE 4-KEY-1 or via serial interfacemodules using a PC. Both the LCD keypad and theserial interface modules are available as accessories.


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Factory settingsThe factory settings of the parameter of the DF4series frequency inverters are chosen such thatparameter changes should not be necessary forstandard applications. The following table lists themost important settings.

_All of the parameters which are described in thefollowing section can be changed only with theLCD keypad or the serial interface moduleincluding operating software.Terminal WEE1, E2 Selection of the three jog frequencies:E1 = HIGH:E2 = HIGH:E1 _ E2 = HIGH:20 Hz30 Hz40 Hz

E3 E3 = HIGH: Start DC injection braking withU = 1 % nominal voltageE4 E4 = LOW:E4 = HIGH:ClockwiseCounterclockwiseControlcharacteristics(at rated motorspeed)DF4-120:DF4-34x:230 V/50 Hz400 V/50 Hz

Setpoint 0 to 10 VChangeable parameters5707/98 AWB-C823-1278GB

ChangeableparametersOperating modePNU 001 specifies which input channel is used forcontrol, setpoint input and setting parameters.The setpoint for the controller is stored in non-volatilememory and it is not affected by mains supplyinterruptions.Ramp times _a:

a:fmax:5 s5 s50 HzCurrent limit Imax:ImaxGen:150 % nominal motor current80 % nominal motor currentMonitor signal Current output frequencyRelay K1 Switches following a TRIP messageRelay K2(only modelDF4-341)Switches when inverter ready to operateStart options Automatic start if terminal 28 = HIGH, flying restartfor motor inactive


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Operating mode Setpoint input and control via terminalsChopperfrequency8 kHzFault reset LOW edge on terminal 28 (EN)Terminal WE

_If an enable signal is connected to terminal 28,the frequency inverter may start automatically ifthe operating mode is changed and the mainssupply is switched on again.Changeable parameters5807/98 AWB-C823-1278GB

Parameter set transferPNU 002 is used to manage the parameter sets.According to the value of PNU 002, a parameter setis either overwritten with the factory settings or

transferred from/to the optional LCD keypadDE 4-KEY-1.PNU Name Value Function WE001 Operating mode 0 Setpoint input via terminal 8,Control by terminals,Parameter setting via LCD keypad01 Setpoint input via LCD keypad,Control by terminals,Parameter setting via LCD keypad2 Setpoint input via terminal 8,Control by terminals,Parameter setting via interface module3 Setpoint input via interface module,

Control via interface module,Parameter setting via interface modulePNU Name Value Function WE002 Parameter set 0 Function executed 01 Overwrite PAR1 with factory default2 Overwrite PAR2 with factory default3 Overwrite PAR1 and PAR2 with data from LCD keypad4 Overwrite PAR1 with data from LCD keypad5 Overwrite PAR2 with data from LCD keypad6 Transfer PAR1 and PAR2 to LCD keypadChangeable parameters5907/98 AWB-C823-1278GB

Switching parameter sets

The DF4 frequency inverters have two parametersets and you can switch from one to the other duringdrive operation. This allows additional accelerationand deceleration times and/or three additional jogfrequencies. Each parameter set contains allconfigurable parameters. With a few exceptions, allparameters of both sets can have different values.The exceptions are described in the Appendix underComments/abbreviations used in the parametertable.In order to switch from parameter set 1 to 2 or viceversa,connect signals to the terminals as shown inthe table (see the section Terminal configuration).*) Terminal assignment dependent on value of PNU 007


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_If you have set different motor control modes inthe two parameter sets with PNU 014, onlyswitch between parameter sets when thecontroller is inhibited.PNU 007 = Terminal FunctionE1 E2 E3 E44, 8, 15, 17, 18 *) HIGH *) *) Switch to parameter set 2. LOW activates parameter set1, 3, 6, 7, 12 *) *) HIGH *) 1 again.Changeable parameters6007/98 AWB-C823-1278GB

Controller address and baud rateIf you want to connect several frequency inverters inparallel using the RS 485 interface, each of thecontrollers on the line must have a unique address.The address is set with PNU 009. The possibleaddress ranges for different bus interfaces is shown

in the relevant manual for the interface.Communication behaviourIf you operate the frequency inverter with an interfacemodule, PNU 126 is used to specify how thefrequency inverter should behave if thecommunication to the interface has failed (interfacedefect or removed).PNU Name Value Function WE009 Controller address 1 to 99 Only applies to RS 232/RS 485 serial interfacemodule.1125 Baud rate 0 = 96001 = 4800

2 = 24003 = 12004 = 19200

The baud rate depends on the interfaces(RS 232/RS 485).0

_This function is not available for DF4-120 seriesfrequency inverters. In this case, if an erroroccurs the superior controller (e.g. PC) musttrigger an appropriate reaction (e.g. errormessage or switch off the frequency inverter).

PNU Name Value Function WE126 Communicationbehaviour0 No reaction to an error in data transfer betweenfrequency inverter and interface module01 In case of errors in the data transfer between thefrequency inverter and the interface module, thecontroller is switched off and the error message CEOis output.Control parameters6107/98 AWB-C823-1278GB

Control parameters Terminal configuration

PNU 007 is used to specify the assignment of thedigital inputs. The factory setting is 0. There are 23


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different combinations as described in the followingtable. Other terminal assignments are not possible.Please note too that not all functions are availablesimultaneously and that various functioncombinations are mutually exclusive.PNU 007 = Terminal Function

E1 E2 E3 E40 FF1, FF2, FF3 DCB R/L FF1 = Jog frequency 1FF2 = Jog frequency 2FF3 = Jog frequency 3DCB = DC injection brakingR/L = Selects direction of rotationPAR = Selects parameter setQSP = QuickstopEF = External errorDOWN = Motor potentiometer, decrease valueUP = Motor potentiometer, increase valueR/QSP = Rotation R (CW), quickstop on errorL/QSP = Rotation L (CCW), quickstop on error1 PAR R/L

2 QSP R/L3 FF1 DCB PAR R/L4 PAR QSP R/L5 EF DCB R/L6 PAR R/L7 EF DCB R/L8 PAR QSP R/L9 FF1 EF R/L10 DOWN UP EF R/L11 DCB R/L12 PAR R/L13 QSP R/L14 FF1 DCB R/QSP L/QSP15 PAR R/QSP L/QSP16 FF1, FF2, FF3 R/QSP L/QSP17 DCB PAR R/QSP L/QSP18 EF R/QSP L/QSP19 DCB R/QSP L/QSP20 FF1 EF R/QSP L/QSP21 DOWN UP R/QSP L/QSP22 FF1 R/QSP L/QSPControl parameters6207/98 AWB-C823-1278GB

Control wordThe control word contained in PNU 135 is a 16-bitword with the designation STW. It contains bitmappedcontrol commands for the frequency

inverter. The control word can be used to control allfunctions of the frequency inverter. The followingtable shows its structure.Bit Function DF4-120 Function DF4-34x0.1 Bit 0 Bit 1 Setpoint0 0 Frequency setpoint (PNU 046)1 0 FF 1 (PNU 037)0 1 FF 2 (PNU 038)1 1 FF 3 (PNU 039)2 0 = R (CW)1 = L (CCW)3 0 = Disable quickstop1 = Enable quickstop4 reserved 0 = Ramp generator enabled

1 = Ramp generator paused5 0 = Ramp generator enabled1 = Brake ramp generator enabled to setpoint


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0 using ramp a (PNU 013).6 0 = Motor potentiometer UP disabled1 = Motor potentiometer UP enabled7 0 = Motor potentiometer DOWN disabled1 = Motor potentiometer DOWN enabled8 reserved9 0 = Controller (enable)

1 = Controller inhibit10 reserved reserved11 Edge from 0 to 1 triggers TRIP reset12 0 = Parameter set 11 = Parameter set 213 reservedControl parameters6307/98 AWB-C823-1278GB1)You can disable the updating of information on thestatus and current values in order to be able to transfercontrol information at a more accurate timepoint.Controller enable terminal 28 (EN)/PNU 040It is necessary to enable the controller before you canstart the frequency inverter. Controller enable iscontrolled with terminal 28 as follows:LOW = Controller inhibitedHIGH = Controller enabledIn the case of the DF4-120 series frequencyinverters, parameters can only be changed when thecontroller is inhibited. With the DF4-34x it is alsopossible to modify parameters with the controllerenabled.If you use the optional LCD keypad DE 4-KEY-1,terminal 28 and the RUN/Stop key are logicallyconnected in series. If you press the Stop key on the

keypad or connect LOW to terminal 28, the controllercannot be started again until you connect HIGH toterminal 28 and press the RUN key on the keypad.If you have inhibited the controller using the LCDkeypad and then removed the LCD keypad, in orderto enable the controller again you must either:switch the power off and on again, orattach the LCD keypad again and press theRUN key.14 0 = Disable DC injection braking1 = Enable DC injection braking151) 0 = Update process output data continuously1 = Do not update process output datareservedBit Function DF4-120 Function DF4-34xControl parameters6407/98 AWB-C823-1278GB

If you are controlling the frequency inverter with theserial interface module, in addition to the hardwareenable with terminal 28, it is also necessary to selectthe software enable.Software enable (EN) is controlled with PNU 040 asfollows:0 = Controller inhibited (NEN)1 = Controller enabled (EN)You can also enable the controller with the control word

STW (bit 9).Flying restart option


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Parameter PNU 142 is used to configure the startoptions for the frequency inverter. The flying restartoption synchronizes a coasting motor with thefrequency inverter (e.g. after mains power interruption).The frequency inverter determines the speed of rotationof the coasting motor before applying power and then

accelerates/brakes the motor to the specified setpointusing the configured acceleration/braking times.If the controller is enabled through terminal 28, theflying restart option will cause the motor to startimmediately (e.g. following mains power interruption ora fault). If automatic start is inhibited, the frequencyinverter waits for a LOW/HIGH change before it appliespower to the motor.PNU Name Value Function WE142 Start options 0 Automatic start inhibited,deactivate flying start11 Automatic start if terminal 28 = HIGH, flying restartoption inactive2 Automatic start inhibited,flying restart option active3 Automatic start if terminal 28 = HIGH, flying restartoption inactiveControl parameters6507/98 AWB-C823-1278GB

Reversing the motorControl terminals E3 and E4 are used to specify thedirection of rotation of the motor. According to theterminal configuration (see parameter PNU 007)specification of the direction of rotation is done withor without protection against wire breaks (quickstop).

*) Terminal assignment dependent on value of PNU 007Warning!For parameter values PNU 007 = 0 to 13 noprotection against wire breaks a wire break canresult in unintentional reversal of the motor.PNU 007 = Terminal FunctionE1 E2 E3 E40 to 13 *) *) *) LOW ClockwiseHIGH Counterclockwise14 to 22 *) *) HIGH LOW ClockwiseLOW HIGH CounterclockwiseLOW QuickstopHIGH HIGH The motor direction is not reversed. If the drive isrunning, the signal which is applied first determines thedirection of rotation. If the power is switched on and E3and E4 are HIGH, the controller does a quickstop.Control parameters6607/98 AWB-C823-1278GB

Frequency setpointThe frequency setpoint is used to specify therequired motor speed.For all models of frequency inverter, the maximumoutput frequency is limited by the value offmax(PNU 011).With the DF4-34x series, entering a value greaterthan fmax will cause the setpoint value to be

restricted to fmax. In the case of the DF4-120 series,a higher value for PNU 046 is accepted, but the


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output frequency is limited by the value offmax.Motor potentiometer functionSetpoint input using the motor potentiometerfunction is only active for certain values of PNU 007.Changes to the setpoint take place with theconfigured acceleration and braking times.

*) Terminal assignment dependent on value of PNU 007PNU Name Value Function WE046 fSet 0.0 to 480.0 Hz0.0 to fmax Hz(DF4-120)(DF4-34x)Frequency setpoint 0PNU 007 = Terminal FunctionE1 E2 E3 E410, 11, 12, 13, 21 LOW LOW *) *) Setpoint = 0 HzHIGH Decrease setpoint to fminLOW HIGH Increase setpoint to fmaxHIGH Maintain current value (freeze)Control parameters

6707/98 AWB-C823-1278GBThe motor potentiometer setpoint is stored in a nonvolatilememory and is retained even after thefollowing events:Switching off the powerController inhibitTRIP messagesFor the DF4-34x series, activation of the quick stopfunction sets the motor potentiometer value to 0 Hz.Motor potentiometer function in combinationwith jog frequenciesChanges to the setpoint take place with the

configured acceleration time. For the DF4-120 thedeceleration time is applicable to the brakingprocess whereas for the DF4/-34x the quickstopramp time is used instead.In the case of invalid inputs (e.g. E2=HIGH=up andE3=HIGH=down) the frequency inverter deceleratesthe motor to the setpoint 0 Hz.*) Terminal assignment dependent on value of PNU 007PNU 007 = Terminal FunctionE1 E2 E3 E422 *) *) HIGH LOW Decrease setpoint to fminLOW ClockwiseHIGH HIGH CounterclockwiseLOW HIGH LOW LOW Increase setpoint to fmaxLOW Maintain current value (freeze)HIGH *) Accelerate/brake to jog frequency 1 (PNU 037)Control parameters6807/98 AWB-C823-1278GB

The setpoint configured with the motorpotentiometer function sets an upper limit to the jogfrequency value 1. If jog frequency 1 is configuredhigher than the current motor potentiometersetpoint, the frequency inverter only accelerates tothe motor potentiometer setpoint. If the jogfrequency 1 is smaller than the current motorpotentiometer setpoint, the frequency inverter

accelerates or decelerates to the jog frequency 1.If the mains is turned off, the last motor


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potentiometer setpoint is not stored; the new startvalue is always 0 Hz.

Jog frequenciesYou can configure three fixed inverter frequencies(jog frequencies) with values between 0 and 480 Hz.Depending on the value of PNU 007, the signals on

terminals E1 and E2 (HIGH/LOW) are used to selectone of the 3 jog frequencies as follows:*) Terminal assignment dependent on value of PNU 007PNU Name Value Function WE037 Jog frequency 1 0.0 to 480.0 Hz Preset speeds 20 Hz038 Jog frequency 2 30 Hz039 Jog frequency 3 40 HzPNU 007 = Terminal FunctionE1 E2 E3 E43, 4, 5, 6, 9,14, 15, 20, 22HIGH *) *) *) Selects jog frequency 1. LOW signal returns thecontroller to the programmed standard setpoint.0, 1, 2, 16 LOW LOW Controller returns to programmed standard setpoint.

HIGH Selects jog frequency 1.LOW HIGH Selects jog frequency 2.HIGH Selects jog frequency 3.Control parameters6907/98 AWB-C823-1278GB

The jog frequencies can be configured lower thanfmin;fmin is ignored in this case. However, the fmaxvalue applies to jog frequencies. If you configure thejog frequency higher than fmax, the output frequencyof the frequency inverter is not allowed to exceedfmax.Analog setpoint input

The analog setpoint is applied to terminal 7 and 8.Bridge S1 on the front of the frequency inverter isused to configure the signal range of the analogsetpoint. There are 3 positions for the bridge asfollows:5-6 for setpoint range 0 or 4 to 20 mA3-4 for setpoint range 0 to 5 V1-2 for setpoint range 0 to 10 VAs supplied by the factory, the bridge is inserted onposition 1/2, i.e. a setpoint range of 0 to 10 V.In order to choose the setpoint range 4 to 20 mA, youmust set parameter PNU 034 to 1 in addition toinserting bridge 5/6.5-63-41-2

PNU Name Value Function WE034 Setpoint range 0 Setpoint 0 to 5 V, 0 to 10 V or 0 to 20 mA 01 Setpoint 4 to 20 mAControl parameters7007/98 AWB-C823-1278GB

Quickstop aQuickQuickstop can be configured regardless of operatingmode with terminals E3 and E4 in conjunction withthe value of (PNU 007).*) Terminal assignment dependent on value of PNU 007DF4-120For this frequency inverter series, if quickstop isactivated the frequency inverter brakes to 0 Hz with


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the configured deceleration time. DC injectionbraking is activated iffgoes below 0.1 Hz.DF4-34xThe DF4-34x series frequency inverters have aquickstop ramp in addition to the deceleration timesetting. In this case, if the quickstop function is

activated, the frequency inverter brakes to 0 Hz usingthe quickstop ramp. The quickstop ramp time isconfigured with PNU 105. The factory setting is 5 s(range 0 to 999 s).The error signal OU is output if the ramp time is tooshort and the signal disable is set automatically.DC injection braking is activated when the speeddrops below the configured value (PNU 019,threshold for automatic DC injection brake).PNU 007 = Terminal FunctionE1 E2 E3 E42, 4, 8, 9, 13 *) *) LOW *) Activate quickstop14 to 22 LOW Activate quickstop with drive running

HIGH HIGH Activate quickstop when power is appliedControl parameters7107/98 AWB-C823-1278GB

DC injection brakeThe DC injection brake is used to rapidly bring themotor to a standstill without the use of a brake unit.In this case, all of the brake energy is dissipated inthe motor as heat. You can indirectly configure thebraking current with PNU 036 (voltage for DCinjection brake).PNU Name Value Function WEDF4-120036 Voltage for DCinjection brake0.00 to40.00 %Sets the braking current indirectly via motorresistanceModeldependent106 Holding time forautomatic DC injectionbrake0.00 to50.00 s

Terminates DC injection braking after aspecified time, thus prevents the motor fromoverheating

0.00 sDF4-34x019 Threshold forautomatic DC injectionbrake0.1 to5.0 HzAutomatically activates DC injection brakingunder the set value0.1 Hz036 Voltage for DCinjection brake0.00 to40.00 %

Sets the braking current indirectly via motorresistanceModeldependent


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106 Holding time forautomatic DC injectionbrake0.00 to999.00 s

Terminates DC injection braking after aspecified time, thus prevents the motor from

overheating0.02 sControl parameters7207/98 AWB-C823-1278GB

The DC injection brake is activated by applying aHIGH signal to the terminal E2 or E3.*) Terminal assignment dependent on value of PNU 007Automatic DC injection brakeIf the setpoint drops below the configured threshold(PNU 019), the DC injection brake is appliedautomatically for the holding time configured withPNU 106. The frequency inverter then goes into

controller inhibit mode.External fault inputThis function allows an external fault signal to beinput to the frequency inverter in order to triggercontroller inhibit. Please refer to the table forinformation on the values of PNU 007 and theterminal configuration which is necessary to triggerthe external fault function.PNU 007 = Terminal FunctionE1 E2 E3 E43, 7, 14, 19 *) HIGH *) *) DC injection brake remains active while E2, E3 = HIGH0, 5, 11 *) HIGH

_Only frequency inverters of the DF4-34x seriesallow the setting of the threshold (PNU 019). Forthe DF4-120 series, the threshold is fixed at0.1 Hz.

_For frequency inverters of the DF4-120 series,you cannot activate this function through theterminals if you have chosen the operating modesetpoint input via interface module(PNU 001 = 3). There is no such limitation for

frequency inverters of the DF4-34x series.Control parameters7307/98 AWB-C823-1278GB

*) Terminal assignment dependent on value of PNU 007Motor control modeThe setting for motor control mode is used toconfigure the frequency inverter to the specificapplication. It is necessary to test from case to casewhether you should deviate from the factory setting.PNU 007 = Terminal FunctionE1 E2 E3 E47, 8, 18, 19 LOW *) *) *) Depending on the configuration, a LOW signal on the

specified terminal triggers the external fault function and5, 6, 9, 20 *) LOW inhibits the controller.10 *) LOW


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PNU Name Value Function DF4-120 DF4-34x014 Motor controlmode0 Linear characteristic with auto-boost(U/f= const.)X(WE) 1 Quadratic characteristic with auto-boost

(U ~ f2)X2 Linear characteristic with constantUmin boost (U/f= const.)XX

3 Quadratic characteristic with constantUmin boost (U ~ f2)XX

4 Motor current control X(WE)

_Only the frequency inverters for the specifiedmotor rating can be connected in mode 4;

at least two ratings lower.Control parameters7407/98 AWB-C823-1278GB

Linear characteristic, quadratic characteristicThe linear characteristic has the most favourabletorque progression since it changes linearly over theentire motor speed range. Quadratic characteristics,i.e. a quadratic torque curve (often used for pumpsand fans), allow a reduction in the motor losses dueto reversal of magnetisation and a reduction in motornoise. However, in the case of large moments ofinertia of the load, the motor may not be able to

provide the necessary torque.Figure 30: Linear and quadratic frequency responsefUNfN fUUNfNU(PNU 0015) (PNU 0015)

Control parameters7507/98 AWB-C823-1278GB

Constant Umin boost/Automatic boostA voltage increase (Boost, PNU 016) is needed toprovide a torque in the motor at frequencies close to

zero. With a constant Umin boost, the characteristicstarts from the specified value and increases linearlyup to the rated frequency fN (PNU 015). The motorwill have increased losses when idling (no load) sincethis value is set for operation under load. Thismeasure is suitable for:Applications with several motors3-phase reluctance motors3 phase sliding rotor motorsSpecial motorsLifting drives and drives with high dynamic loads(e.g. Positioning and feeding drives)Automatic boost adapts the required voltage boost

to the load situation, resulting in lower losses. Thisapproach is particularly suitable for single drives


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using standard motors.The voltage boost Umin is set via PNU 016. The autoboostoption automatically adapts the voltage boost tothe respective motor load.Figure 31: Constant and automatic motor voltage boostUfN fNetz

UUminUfN fNetz

UUmin


Umin boostThe Umin boost parameter specifies voltage increaseat a frequency of 0 Hz. It can be adjusted between 0and 40%. The factory setting for DF4-120 dependson the model concerned and for DF4-34x is 0%.

The voltage increase set via PNU 016 adjusts theU/fcharacteristic to overcome the resistive load ofthe motor. This ensures that a high torque is availableeven at a speed of 0 Hz.Motor control mode setting ofUminMotor current controlMotor current control provides a higher torque andlower no load currents compared to U/fcharacteristic control. The frequency inverter thushas a higher dynamic response. This approach isparticularly suitable for:Warning!Too high a value set for Umin will cause increased

thermal load and even destruction of the motor.PNU 014 = Function ofUmin0, 1 Umin value is the boost factor ofthe auto-boost function. The actual voltage increasedepends on the load.

This adjustment is useful with drives with high start-uptorques, drives with quadratic load torque and withspecial motors2, 3 The Umin value is used to correct the U/fcharacteristicup to the rated frequency4 The Umin value is ignored in the motor control mode"Motor current control".Control parameters77

07/98 AWB-C823-1278GBsingle drives with heavy load changes,single drives with high start-up torquerequirement,highly-accurate speed control of 3-phasestandard motors in conjunction with slipcompensation.Motor current control is not possible if:several drives with different loads are connectedto the same frequency inverter,several drives with different nominal powerratings are connected to the same frequencyinverter.

additional inductance is being used in the motorpower circuit (motor chokes, motor voltage filters


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etc.)U/frated frequencyAttention!Only switch from U/fcharacteristic control tomotor current control during controller inhibit.

_Parameter PNU 015 depends on the rating dataof the motor and the rated voltage of thefrequency inverter. If the characteristic isincorrectly specified this can result in reducedtorque or overheating of the motor.Control parameters7807/98 AWB-C823-1278GB

Example:For frequency inverters of the DF4-34x series withthe rated voltage UMains = 3 AC 400 V and with themotor data UNMot = 380 V and fNMot = 50 Hz thefollowing characteristic points are obtained:Figure 32: Calculation of characteristic point PNU 015PNU Name Value Function WEDF4-120015 U/fratedfrequency30.0 to 960.0 Hz Characteristic point of the rated voltage 50 HzDF4-34x015 U/f-ratedfrequency7.5 to 960.0 Hz Characteristic point of the rated voltage 50 Hz230 VUNMot= ------------ fNMot400 VUNMot= ------------ fNMotPNU 015 400 V380 V= ------------ 50 Hz = 52,6 HzN

UfNMot fU = 400 VUN M o t = 380 VfPNU 015= 50 Hz= 52.6 Hz

Control parameters79

07/98 AWB-C823-1278GBMaximum and minimum frequencyThe maximum and minimum frequency do not havean effect on the U/fcharacteristic but restrict therange in which you can run the frequency inverter incontinuous operation. fmin is the lower limit and fmaxthe upper limit.If the frequency inverter starts from 0 Hz, the rangeup to fmin (PNU 010) is not skipped but is progressedwith the set ramp time. You cannot adjust the driveto a steady speed between 0 Hz and fmin; thefrequency inverter will then automatically accelerate tofmin. The parameter fmax (PNU 011) is the upper limit

that should not be exceeded on any account. fN isthe rated frequency that is set with PNU 015. fmax is


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used to normalise the setpoint and is always 100%setpoint (full scale of potentiometer), fmin is always0%. Depending on the setting offmax the ratedspeed of the motor is already reached with smallanalog setpoints.Warning!

If you have set fmax too high, the motor may bedestroyed due to too high centrifugal forces.PNU Name Value Function WEDF4-120010 fmin 0.0 to 480.0 Hz Minimum frequency setpoint value for analogsetpoints0011 fmax 30.0 to 480.0 Hz Maximum frequency setpoint value for analogsetpoints50DF4-34x010 fmin 0.0 to 480.0 Hz Minimum frequency setpoint value for analogsetpoints0

011 fmax 7.5 to 480.0 Hz Maximum frequency setpoint value for analogsetpoints50Control parameters8007/98 AWB-C823-1278GBFigure 33: Usable motor speed range

_ Usable motor speed range_ M = constant_ M ~ 1/f

_Contact the motor manufacturer if you want tooperate the motor with a higher speed than therated speed.

_fmax limits jog frequencies that wereprogrammed too high to the value offmax. Onlychange fmax during controller inhibit.

_In the case of DF4-120 and f2_ 240 Hz theovercurrent disconnection can trip out(such as with a low inductance motor).In the case of DF4-34x and f2_ 300 Hz chopperfrequencies _ avoid a frequency of 8 kHz.

_fmin only affects the analog setpoint value, notthe jog frequencies.UUNfUminfmin(PNU 0010)fN(PNU 0015)(PNU 0016)fmax

(PNU 0011)b ca


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Motor dataFigure 34: Motor name plate

DF4-34x

Rated motor current and motor cos are used tooptimise the motor current control (PNU 014 = 4). Itis only necessary to adjust these parameters if youuse 4-pole asynchronous standard motors which arenot suitable for the required load power. The factorysettings are appropriate for normal situations.PNU 088PNU 091PNU 015

PNU Name Value Function WE088 Rated motor current 0.0 to 1.2 IN Configures the frequencyinverter for size and type ofmotorRated output current091 Motor cos 0.4 to 1.0 Dependent on motorControl parameters8207/98 AWB-C823-1278GB

Ramp timesThe ramp generator delays sudden changes to thesetpoint and ensures the defined acceleration ordeceleration of the motor.Under normal conditions, it is possible to operateDF4 frequency inverters continuously at the currentlimit (trip free function). In order to achieve this, thefrequency inverter automatically reduces thesetpoint in order to operate the drive at lower speedswith a lower load. However, as a result of this, whenthe current limit is reached speed changes can nolonger be carried out with the configured ramp times.If the load does not decrease as fast as the speedand if the times are configured too short, thefrequency inverter can output the fault OC5(inverter overload).Figure 35: Ramp timesPNU Name Value Function WE012 _a 0.0 to 999.0 s Acceleration time from 0 Hz to fmax 5 s013 a 0.0 to 999.0 s Deceleration time from fmax to 0 Hz 5 sffmax(PNU 0011)

fmin(PNU 0010)+a a(PNU0012) (PNU0013)


Current limitsThe frequency inverter is provided with a current limitcontrol which affects the dynamic behaviour underload. The measured load is compared with theconfigured values for a driving load (PNU 022) andfor the generative load (PNU 023).The ramp time is lengthened if the current limit isreached during acceleration. If the current limit isreached with increasing load and constant speed,the frequency setpoint is reduced (10 Hz with


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DF4-120 and 0 Hz with DF4-34x). If the overcurrentcontinues to increase, the I2t calculation outputs anovercurrent fault after a short delay.If the frequency inverter reaches the generativecurrent limit, the frequency setpoint is increased untilthe current returns below the set limit (to max. fmax).

The best current control is achieved when a brakeunit is connected or frequency inverters areinterconnected (group operation).Slip compensationWhen the drive is loaded, the motor slip increases,resulting in a decrease in motor speed. The slip canbe partially compensated by configuring PNU 021

_When using chopper frequencies _ 8 kHz, youmust reduce the current limiting (Derating forhigher chopper frequencies). Refer to the values

ofImax for 60 s from the Appendix in theTechnical data.PNU Name Value Function WE022 Imax 30 to 150 % Current limit motor mode 150 %023 ImaxGen 30 to 110 % Current limit generator mode 80 %Control parameters8407/98 AWB-C823-1278GB

appropriately. The setting is valid for all motor controlmodes (PNU 014).In order to calibrate the slip compensation, operatethe motor without load and measure the motor speedwhich is reached. Then operate the motor with loadand adjust the slip compensation to reach the samespeed again.Chopper frequency (only DF4-34x)This parameter is used to adjust the switchingfrequency of the chopper. You do not normally needto change the factory settings.Attention!If the value of this parameter is too high, this canlead to an unstable behaviour of the frequencyinverter.PNU Name Value Function WE021 Motor slipcompensation0 to 12 % (DF4-120)

0 to 20 % (DF4-34x)Compensation of variation of motorspeed with changing load0%

_The chopper frequency for the DF4-120frequency inverter is set permanently to 9.2 kHz.Control parameters8507/98 AWB-C823-1278GB

However, a change may be useful in the following

cases:Chopper frequency _ 8 kHz:improve torque behaviour with small setpoints


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Chopper frequency _ 8 kHz:Lower motor noiseGood sine wave shape of motor current withapplications requiring setpoint values over 150 HzAttention!Adjustment of the chopper frequency (PNU 018)

does not automatically change the current limits.PNU Name Value Function WE018 Chopperfrequency0 4 kHz 11 8 kHz2 12 kHz3 16 kHz4 12 kHz, noise optimized5 16 kHz, noise optimized144 Chopperfrequencyreduction0 No chopper frequency reduction 1

1 Automatic reduction of chopper frequency at heatsink temperature max 10 C

_Higher chopper frequencies increase the lossesin the frequency inverter. Accordingly, thecurrent limits must be derated in this case.Control parameters8607/98 AWB-C823-1278GB

Automatic chopper frequency reduction (PNU 144)affects the behaviour of the frequency inverter at thechopper frequencies 12 kHz and 16 kHz.

Oscillation damping (only DF4-341)The parameter for oscillation damping optimises therunning behaviour of the motor. This parameter mayneed to be adjusted for motors whose rated outputpower is smaller than that of the frequency inverter;e.g. in the case of motors with a large number ofpoles and special motors. This parameter can alsobe adjusted to minimise signs of resonance in thefrequency inverter.PNU 144 = Function0 Ifmax is exceeded at chopper frequencies of12 kHz/16 kHz, the controller is inhibited and the TRIPsignal is set. The motor coasts to a halt.

1 Ifmax 10 C is exceeded at chopper frequencies of12 kHz/16 kHz, the chopper frequency is automaticallyreduced to 8 kHz. The drive continues to operate. Thereduced chopper frequency causes the motor togenerate more noise.

_This value cannot be transferred with the optionalLCD keypad DE4-KEY-1.PNU Name Value Function WE079 Oscillation damping 0 to 80 Reduction of vibration under no load 5Read-only parameters8707/98 AWB-C823-1278GBFrequency message from relay


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The frequency message threshold is set withPNU 017. The frequency f1 that you set can bebetween 0.0 and 480.0 Hz. The relay is energized ifthe output frequency f2 exceeds the set value f2_f1.The factory setting for the frequency is 0 Hz.Read-only parameters Status word

The 16-bit status word gives information on thecurrent status of the frequency inverter. The statusword is bitmapped and stored in PNU 150. Pleaserefer to the following table for information on thesignificance of the bits.Significance of the bitsBit Function DF4-120 Function DF4-340, DF4-3410 reserved 0 = Parameter set 1 active1 = Parameter set 2 active1 Impulse inhibit (IMP)0 = Frequency inverter enabled1 = Frequency inverter inhibited2 0 = Operation below the current limit1 = Current limit reached

3 reserved 0 = (f2_fSet)1 = (f2 = fSet)4 0 = (f2_fSet)1 = (f2 = fSet)Ramp generator (HLG)0 = (HLG input _ HLG output)1 = (HLG input = HLG output)Read-only parameters8807/98 AWB-C823-1278GB

Displaying parameters on the LCD keypadSeveral parameters which are measured by thefrequency inverter during operation can be displayed

on the optional LCD keypad DE 4-KEY-1. See alsoparameters PNU 500 and 501.5 0 = signal threshold not reached (f2_f1)1 = signal threshold reached (f2_f1)6 0 = (f2_ 0)1 = (f2 = 0)7 0 = Controller enabled (EN)1 = Controller inhibit (NEN)8 Inverter status0 = No fault8 = Fault15 = Inverter switched off (messageonly applies to serial interface modulewith external power feed)

Inverter status0 = Inverter initialisation1 = Autostart Lock3 = Operation disabled (controller inhibit)4 = Flying restart option active5 = DC injection braking active6 = Controller enabled7 = Message active (IMP set dynamically,e.g. with OU message )8 = Fault15 = Inverter disconnected(Message only applies to serial interface withexternal power feed)9101112 0 = Heatsink temperature below warning threshold


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1 = Warning threshold of heat sink temperature reached (max 10 C)13 0 = DC bus voltage UZKmax normal1 = Overvoltage in DC bus14 0 = Clockwise1 = Counterclockwise15 0 = not ready for operation1 = ready for operation (no fault, undervoltage or overvoltage)

Bit Function DF4-120 Function DF4-340, DF4-341

_With DF4-34x series frequency inverters you canrefer the displayed value to a process variable.Read-only parameters8907/98 AWB-C823-1278GB

Analog output signal for monitoringFor monitoring purposes, various processparameters from the frequency inverter can beoutput to terminal 62 as normalised voltages.

PNU Name Value050 Field frequency 0 to 480 Hz052 Motor voltage 0 to 260 V for DF4-1200 to 510 V for DF4-3400 to 530 V for DF4-341054 Motor current 0 to 2 _ IN [A] _20 %056 Inverter load 0 to 200 % _20 %061 Heatsink temperature 0 to 100 C _5 %PNU Name Value Function WEDF4-120111 Monitor output signal 0 Output frequency 01 Inverter load (in-phase current)2 Motor current3 DC bus voltage108 Gain for PNU 111 0 to 255 Corresponds to 40 % to 110 % 220DF4-34x111 Monitor signal 0 Output frequency 01 Inverter load (in-phase current)2 Motor current3 DC bus voltage108 Gain for PNU 111 0 to 255 Corresponds to 0 % to 200 % 128

_The gain for the analog output can be adjustedonline with PNU 108.Read-only parameters90

07/98 AWB-C823-1278GBThe following table shows the assignment ofvoltages to terminal 62 and the process parameters

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Inversor Moeller DF4