Intelligent Low Voltage Solid State Motor Control … · Intelligent Low Voltage Solid State Motor ... • Built-in self-testing (BIST) ... 3 Relay Outputs Configurable to:

1

Mission critical reliabilityPatented soft start technologyIntegral digital protection and meteringContinuous and integral bypass chassisRXE redundant configurationsMXP modular, prepackaged startersReversing, two-speed, wound rotorSynchronous, dc injection braking24/7 service and support

Intelligent Low Voltage Solid State Motor Control Productswith next generation MX2 / MX3 technology

Intelligent Low Voltage Solid State Motor Control Productswith next generation MX2 / MX3 technology

OVERVIEW

2

NEXT GENERATION INTELLIGENT MOTOR CONTROL

MX2 Control Technology

OPTIONAL KEYPAD

Standard Features:

• Highperformancemotorcontrolwithmultiplestartingmodesbuiltin

• Jogging7and14%speed

• 3userconfigurabledigitalinputs

• 2fixedinputsforstartandbypassconfirm

• 3userconfigurableoutputrelaysand1fixedbypassconfirm

• UserconfigurableanalogI/O

• ProgrammableburdenCTsettings

• Residualgroundfault

• Advancedline/motormetering

• DCbrakinglightduty

• Powerstackthermistor

• Datasnapshotofeachfault

• Poweruponstart

• 1,000Vcapable

• Energysaver

• Remotekeypadready

• UL,CUL,NEMAcompliance

• Built-inself-testing(BIST)

• Modbus485plusexpandedcommunicationscapabilitieswithoptionalMXDE3communicationsmodule

MX2 BOARD

MX2 Control Highlights TheMX2controltechnologyfromBenshawprovidesapowerful,flex-ible,intelligentlowvoltagemotorcontrolplatform.MX2-basedcontrolsoffermultiple,userselectablestart-ingmodes,anincreasedselectionofconfigurabledigitalandanalogI/O’s,comprehensivebuilt-inmeteringcapabilities,unprecedentedonboardprotectionandaneasytouse,intuitiveuserinterface.

Ourcontrolboardterminalconfigura-tion—coupledwithprogrammableburdenCTsettings—makesBenshaw’sMX2technologyanexcellentchoiceforawiderangeofintelligent,softstartmotorcontrolapplications.

Benshaw’sMX2-basedlowvoltagemotorcontrolsraisethebarforintelligent,low-cost,softstartmotorcontrol.

Whenyoufactorinouruniquethree-yearfactorywarrantyand24/7comprehensivetechnicalsup-port,wethinkyou’llfindBenshaw’sMX2-basedcontrolstobeanexcellentvalue.

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MX2 Control Features

Multiple Starting Modes:• Voltageramp

• Currentramp

– Adjustableinitialcurrent

– Adjustablemaximumcurrent

– Adjustableramptime

• Torqueramp(TruTorque™)– Adjustableinitial

torque– Adjustablemaximum

torque– Adjustableramptime

• Powerramp

– Adjustableinitialtorque

– Adjustablemaximumtorque


• Linear/tachfeedbackcontrol

• Jogging7and14%speed

Motor Protection:• Motorthermaloverload

• IndependentstartingandrunningOL’s

• Uptospeedtimerexceeded

• Lowlinevoltage

• Lowlinefrequency

• Highlinefrequency

• Phasereversal

• Phaseloss

• Instantaneousovercurrent

• Overcurrent

• Undercurrent

• Currentimbalance

• Groundfaultresidual

• ShortedSCR

• Disconnectfault

• Inlinecontactorfault

• Controlpowerlow

• Stackovertemperature

Metering:• +/-2%accuracy

• Averagecurrent

• L1current

• L2current

• L3current

• Currentimbalance%

• Groundfaultamps/re-sidual

• Averagevolts

• L1–L2voltage

• L2–L3voltage

• L3–L1voltage

• Overload%

• Powerfactor

• Watts

• VA

• VARS

• KWhours

• MWhours

• Phaseorder

• Linefrequency

• Analoginput

• Analogoutput

• Runtime—days

• Runtime—hours

• #ofstarts

• TruTorque™%• Power%

• Peakstartingcurrent

• Laststartingduration

3 Digital Inputs Configurable to:• Stop

• Fault

• Faultreset

• Bypass/confirmation&inline

• OLreset

• Local/remoteselection

• Heaterenable

• Heaterdisable

• Dualrampselection

• 1dedicatedstartinput

• 1dedicatedbypass

3 Relay Outputs Configurable to:• Starteroff

• Faultedfailsafeandnonfailsafe

• Running

• Uptospeed

• Alarmcondition

• Readycondition

• Lockedout

• Overcurrenttrip

• Undercurrenttrip

• OLalarm

• Shunttripfailsafeandnonfailsafe

• Groundfault

• Energysaverindication

• Heatingindication

• Slowspeedforward/reverse

• DCbraking

• Coolingfan

• 1fixedbypass

1 Analog 4 – 20 mA / 0 – 10 Vdc Input Configurable to:• Triphighlevel

• Triplowlevel

1 Analog 4 – 20 mA / 0 – 10 Vdc Output Configurable to:• Current

(0–200%/0–800%)

• Voltage(0–150%)

• OL(0–150%)

• KW(0–10Kw/0–100Kw)

• MW(0–1Mw)

• Analoginput(0–100%)

• Firing(0–100%)

• Calibration

User Interface:• Standardboard-mounted

LEDinterface

• OptionalremotemountLCDdisplay

– Set/examineoperatingparameters

– Viewstatusinformation

– Viewlinecurrent,voltageandfrequencyinrealtime

– Startandstopthesolidstatestarter

1 Communication Port Included:• ModbusRTU/RS485

Optional with MXDE3:• DeviceNet

• EtherNet

• EtherNet/IP

• ModbusTCP

Advanced Functionality:• Dualrampselection

• Adjustablekickcurrent

• Programmabledecelmodes

• LVBISTtest(built-inselftest)

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NEXT GENERATION INTELLIGENT MOTOR CONTROL

MX3 Control Technology

MX3 Control Highlights Benshaw’snextgenerationMX3technologypropelslowvoltagemotorcontroltoevengreaterlevelsofperfor-manceandfunctionality.Withitsreal-timeclock,enhancedprogrammingcapabilities,easeofuse,andaunique,flexiblearchitecture—Benshaw’sMX3controllerdeliversadvancedmotorcontrolandprotectionwithalloftherugged,dependableperformanceyou’vecometoexpectfromaworldleaderinadvancedcontrolsanddrives.

MX3controllers,powercomponents,softwareandsensorsarealldesigned,builtandtestedtoperformasanintegratedcontrolsystem,eliminat-ingthecoordinationandperformanceproblemsinherentinotherformsofreducedvoltagestarting.

Benshaw’snextgenerationMX3technologywillshortenyourcommissioningtimes,improvemotorperformanceandprotection,enhancediagnosticcapabilityandstreamlineelectricalsystemmonitoringandmaintenancetasks.

Benshaw’s MX3 control technology provides all MX2 features, plus:

• 8userconfigurableinputs

• 2fixedinputsforstartandbypassconfirm

• 6userconfigurablerelayoutputs

• 1fixedoutputforbypassconfirm

• Real-timeclock

• MotorPTCinput

• ZeroSequenceGroundFault

• RTDmodulesupport

• FullDCbrakingwithadd-onSCR

• Eventlog(99events)

• Startperhourlimiter

• Backspintimer

• Timebetweenstartslimiter

• Zerospeedswitchinput

• Poweroutageridethrough(PORT)

• Powerfactortrip

• PatentedCyclo™ control(0-40%speed)

KEYPAD(INCLUDED)

MX3 BOARD

I/OCARD

OPTIONALRTD MODULEs

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MX3 Control Features

Multiple Starting Modes:• Voltageramp

• Currentramp

– Adjustableinitialcurrent

– Adjustablemaximumcurrent


• Torqueramp(TruTorque™)– Adjustableinitialtorque– Adjustablemaximum


• Powerramp

– Adjustableinitialtorque– Adjustablemaximum


• Linear/tachfeedbackcontrol

• Cyclo™ convertercontrol

Motor Protection:• Motorthermaloverload

• IndependentstartingandrunningOL’s

• Uptospeedtimerexceeded

• Lowlinevoltage

• Lowlinefrequency

• Highlinefrequency

• Phasereversal

• Phaseloss

• Instantaneousovercurrent

• Overcurrent

• Undercurrent

• Currentimbalance

• Groundfault(residualorzerosequence)

• ShortedSCR

• Disconnectfault

• Inlinecontactorfault

• Controlpowerlow

• Stackovertemperature

• MotorPTCinput

• RTDmodules

Metering:• +/-2%accuracy

• Averagecurrent

• L1current

• L2current

• L3current

• Currentimbalance%

• Groundfaultamps/residual

• Averagevolts

• L1–L2voltage

• L2–L3voltage

• L3–L1voltage

• Overload%

• Powerfactor

• Watts

• VA

• VARS

• KWhours

• MWhours

• Phaseorder

• Linefrequency

• Analoginput

• Analogoutput

• Runtime—days

• Runtime—hours

• #ofstarts

• TruTorque™%• Power%

• Peakstartingcurrent

• Laststartingduration

• Real-timeclock

6 Digital Inputs Configurable to:• Stop

• Fault

• Faultreset

• Bypass/confirmation&inline

• OLreset

• Local/remoteselection

• Heaterenable

• Heaterdisable

• Dualrampselection

• 1dedicatedstartinput

• 1dedicatedbypass

6 Relay Outputs Configurable to:• Starteroff

• Faultedfailsafeandnonfailsafe

• Running

• Uptospeed

• Alarmcondition

• Readycondition

• Lockedout

• Overcurrenttrip

• Undercurrenttrip

• OLalarm

• Shunttripfailsafeandnonfailsafe

• Groundfault

• Energysaverindication

• Heatingindication

• Slowspeedforward/reverse

• DCbraking

• Coolingfan

• 1fixedbypass

1 Analog 4 – 20 mA / 0 – 10 Vdc Input Configurable to:• Triphighlevel

• Triplowlevel

1 Analog 4 – 20 mA / 0 – 10 Vdc Output Configurable to:• Current(0–200%/0–800%)

• Voltage(0–150%)

• OL(0–150%)

• KW(0–10Kw/0–100Kw)

• MW(0–1Mw)

• Analoginput(0–100%)

• Firing(0–100%)

• Calibration

User Interface:• Standardboard-mounted

LEDinterface

• OptionalremotemountLCDdisplay

– Set/examineoperatingparameters

– Viewstatusinformation– Viewlinecurrent,

voltageandfrequencyinrealtime

– Startandstopthesolidstatestarter

1 Communication Port Included:• ModbusRTU/RS485

Optional with MXDE3:• DeviceNet

• EtherNet

• EtherNet/IP

• ModbusTCP

Advanced Functionality:• Dualrampselection

• Adjustablekickcurrent

• Programmabledecelmodes

• LVBISTtest(built-inselftest)

• Eventlog(99events)

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Control Feature Comparison

Function: MX2 MX3

SOFT STARTING AND STOPPING

Voltage Ramp Current Ramp TruTorque™ Ramp Power Ramp Tach/Speed Control Ramp Linear Ramp Profiles Squared and S Ramp Profiles Dual Ramps Kicking Voltage Decel TruTorque™ Decel DC Braking Heater/Antiwindmill Jogging 7-14% Speed Slow Speed Cyclo™ Operation

0-40% speed

Inside Delta Wye-Delta/Electromechanical Control Phase Controller Current Follower ATL

Function: MX2 MX3

PROTECTION

Separate Starting/Running

Overload Classes

Adj. Hot/Cold Ratio Adj. Cooling Time Intelligent Start Lockout Adj. OL Lockout Level Over/Under Current Protection Retained OL When Power Lost Current Imbalance Protection IOC (Instantaneous Over Current) Open/Shorted SCR Detection Overcurrent/Shear Pin Undercurrent/Load Loss Residual Ground Fault Protection Zero Sequence Ground Fault Protection Starts Per Hour RTD Monitoring Motor PTC Stack OT Switch Stack Thermistor Input Backspin Timer Time Between Starts Phase Rotation Overvoltage Undervoltage Phase Loss UTS/Stall Timer Zero Speed Switch PF Trip PORT (Power Outage Ride Through) Keypad Fault Reset Adj. Auto Fault Reset Timer Adj. No. of Auto Resets Before Lockout Decel After Fault Fault Log Time and Date Stamp 9 Data Snapshots of Each Fault Event Log (last 99 events) Fault Classes

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Control Feature Comparison

Function: MX2 MX3

USER I/OProgrammable Digital Inputs Programmable Digital Outputs User Analog Input Programmable User Analog Output Local/Remote Source Input Power Up Start

METERING

Full Voltage and Current Metering True RMS Calculation Factory Menu Calibration Current Imbalance Meter Ground Fault Meter Watt Meters KVA Meters VAR Meter Watt Hour Meters Line Frequency Meter Power Factor Meter % OL Meter Time Until OL Lockout Release Meter Phase Rotation Meter & Power and % TruTorque™ Meter Run Time Meter Number of Starts Meter Peak Current of Last Start Meter Last Starting Time Meter Analog Input Meter Real Time Clock RTD Meters

MISCELLANEOUSLV BIST MV BIST LV Powered BIST

Open Chassis Starters Non-Bypassed / Continuous Duty

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RC SERIES MX2 OR MX3 TECHNOLOGY RUGGED INDUSTRIAL SOLID STATE STARTERS • 1 – 1200 HP / 208 – 600 Vac

TheRCSeriesSolidStateStartercombinesthehighperfor-manceMX2orMX3controlwiththerugged,continuousduty,fancooledRCstack.

TheMX2orMX3seriescontrolprovidesuserswithapowerfulgroupofprogrammingparameters,designedforflexibilityinindustrialapplications.TheMX2andMX3bothprovidesimplesetupandcommissioningviatheQuickStartMenu.

TheRCpowersectionisaruggednon-bypassedsection.Itisaneconomicalsolutionatlowhorse-power.Inaddition,thefancooledstackprovideshighdutycycleandhighinertiastartingandenergysaveroperation.

RC Series Product Highlights:

Key Advantages:

• Economicalatlowhorsepower

• Highdutycyclestarting

• Longstartingtimes

• Suitableforjoggingapplications

• Fancooledstack

• Energysaverapplications

• Integratedmotorprotection

• Modbusstandard/Profibus,Ethernet,DeviceNet,EthernetIPwebaddressablecommunicationprotocolsareavailableviaoptionalcommunicationbridges

• 1.25servicefactor

• Integratedmeteringanddiagnostics

• Multiplestartingrampsforvariousapplications

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RB SERIES WITH MX2 TECHNOLOGY (ALSO AVAILAbLE wITH MX3 TECHNOLOGY) RUGGED INDUSTRIAL SOLID STATE STARTERS wITH INTEGRAL bYPASS

Open Chassis Starters with Integral Bypass

RB Series Product Highlights: Benshaw’sRBseriessolidstatestart-ercombinesthehighperformanceMX2orMX3technologywitharugged,compact,integralbypassRBseriespowersection.

TheMX2orMX3technologyprovidesuserswithapowerfulgroupofpro-grammingparameters,designedforflexibilityinacrossawiderangeofindustrialapplications.BothMX2and

MX3controlsprovidesimplesetupandcommissioningviatheQuickStartMenu.

TheRBpowersectionisarugged,heavydutysolidstatestartersectiondesignedwithintegralbypasscontac-torsforacompact,efficientprofile.Themodulardesignincludessepa-ratepolesforeachphaseforeaseofmaintenance.

Key Advantages:

• Small,compactdesign

• Modularpowerstackassemblyforeaseofmaintenance

• Modbusstandard/otherFieldbusoptional

• Multiplestartingrampsforvariousapplications

• Integratedmeteringsystemdiagnostics

• Integralbypasscontactorsforefficientoperation,eliminatingtheneedforexternalfans

• Integratedmotorprotection

• Dualrampcapabilityforloaded/unloadedapplications

• Powerstackhasmultipleratingsforapplicationflexibility

NEMA 2-HOLE PATTERN (TOP ENTRY/TOP EXIT)

DV/DTPROTECTION

SCR’S IN REVERSE PARALLEL

CONFIGURATION

NEMA 2-HOLEPATTERN

(BOTTOM ENTRY/BOTTOM EXIT)

sTACK OVER-TEMPERATURE PROTECTION INTEGRAL BYPAss

CONTACTOR

RB Power Pole — 180 A

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MX2 / MX3 RX2E SERIES OR RX3ENEMA 12 / COMbINATION / REDUNDANT

Prepackaged Starters with ATL Bypass Severe Duty 480V

RX2E Series Product Highlights: RX2Estartersprovidesolidstatereducedvoltagestartingfornormaloperationandfullvoltageemergencybackupstartingwithcompleteelec-tronicmotorprotectionattheflipofaswitch.Thisuniqueredundant designistheidealsolutionforcriticalapplica-tionswheredowntimeisextremelydisruptivetoproductionoperations

andcannotbetolerated.Benshaw’sMXsolidstatecontrolsprovideprecisedigitalstartingandstopping,motorprotection,metering,diagnosticsandcommunications.

UnitsarestockedwithMX2technol-ogy,butarealsoavailablewithMX3technology.

Standard Features:

• NEMA12,redundant,combination/circuitbreaker

• Shunttriponmaincircuitbreaker

• 500%–30secondsratedsolidstatestarter,ULcertifiedandlisted

• 1800PIVratedSCRs,ULcertifiedandlisted

• 125%continuousdutyratedsolidstatestarter,ULcertifiedandlisted

• Selectorswitchforselectingsolidstateorfullvoltageoperationmountedinsideenclosure

• FullHPratedbypasscontactorwitha1.15servicefactor,wiredfornormalbypassoperationandfullvoltagestartandrunoperation,withnormallyopenauxiliarycontact.

• Separatelymounted“SPE”seriesover-loadrelaywiredforfullvoltagestartandrunoperation.

• 110voltcontrolpowertransformerwithprimaryandsecondaryfuses

• Doormountedstartandstoppush-buttons

• Doormountedkeypad

• Doormountedrunindicatinglight

• Doormountedlocal-offremoteswitch

• Doormountedoverloadreset

• Terminalstripmountedinsideenclosureforremotestart/stopconnection

• Auxiliaryrelaywith(2)FormCruncontacts

• BenshawMX2programmablemotorcontrollerwithsoftstart,softstopandmotorprotectioncapabilities

• RS485Modbuscommunications

• AnalogI/O

• AvailablewithMX3technology

• OptionalNEMA4enclosure

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MX2PB / MX2PC SerieS • PREPACKAGED STARTERS wITH MX2 TECHNOLOGY MODIFIED FOR NEXT DAY SHIPMENT

Prepackaged Starters Non-Bypassed / Continuous Duty and Integral Bypass

1. Select a starter type:

•MX2PCmodularnon-bypassor

•MX2PBmodularbypassed

2. Select a horsepower rating

3. Select a voltage

4. Select an enclosure

5. Select a circuit breaker (or none)

6. Select your options

Configure the MX2PB / MX2PC to fit your application

MX2PB / MX2PC configurable solid state starters stocked as:

• Non-combination

• Combinationcircuitbreaker

• Rotarydisconnectoperator

• Non-bypass

• Bypasscontactor

• NEMA4or12enclosure

• Modularoperatorstation

• 480V

• Standard120Vcontrolpowertransformer

• Serviceentranceratedwithcircuitbreaker

+

=

(STOCKUNITSHOWN)

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DC Injection Braking Starter Product Highlights:

SOLId STATE STARTER WITH dC INjECTION CONTROL

RB2/RB3 Series Starter with DC Injection Brake

Benshawoffersamicroprocessorcontrolledsolidstatereducedvolt-agestarterwithdcinjectionbrakingforthreephaseinductionmotors.Thestarterprovidesaclosedloopcurrentrampforsmoothsteplessmotoracceleration.

TheMX2/MX3starterwithdcinjec-tionbrakeconsistsoftheBenshaw3phaseSCRpowerstackforthesoftstart,withanintegratedSCRpowerblockpowerfuseandcontrollogicforthedcinjectioncircuit.

Key Advantages:

• BenshawMX2/MX3technology

• Standardandheavydutydcinjectionbrakeconfigurationsavailable

• Modularpowerstackdesignforeaseofmaintenance

• Solidstatestarteranddcbrakeintegratedinonepackage

• Integralbypasscontactordesign

• AdvancedMX2/MX3motorprotection

• AdvancedMX2/MX3meteringfunction

• Realtimeclock

• 99eventloghistory

• Modbuscommunication

• Configurableoutputrelays

• Reducedmaintenance

• Reversingcapabilitiesarealsoavailable

RATINGS

Horsepower: 20 - 1,500 HP

Overload: 500% for 30 seconds 125% continuous

Starting Torque: 0 - 100%

Voltage: 200 - 1,000 Vac

Standard 300% braking Duty: current for 30 seconds

Heavy 300% braking Duty: current for 60 seconds

TheMX2/MX3dcinjectionbrakeSCRsystemallowsafreewheelingpathforthedccurrentthatcirculatesinthemotorwindings.Whenthedccurrentisappliedtotheacmotorwindings,brakingactionisachievedasthecir-culatingmotorrotortriestoalignitselfwiththestationarydcfield,thusgivingthemotorsmoothelectronicbrakingaction.

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MX2 SEP SERIES - SOLId STATE STARTER WITH SYNCHRONOuS CONTROL

Synchronous Starter

Thesyncmotorfunctionsasaninduc-tionmotorduringstartup.Oncethemotorapproachesfullsynchronousspeed,theMX2/MX3dcexciterin-ducesaconstantpolaritytotherotorcausingthemotortolockintosync.Becausetherotor’sfieldisconstantandseparatelyexcitedthereisnosliprequiredtoproducetorque,aswithaninductionmotor.Thisallowsthemotortorunatsynchronousspeed.

TheBenshawsynchronouspackageconsistsofasolidstatestarterportionconnectedtothestatorandanSEP(synchronousexcitationpackage)thatisconnectedtotherotorsectioninconjunctionwithadischargeresistor.ThisSEPissuppliedforbrushtypeandbrushlessexciters.

Key Advantages:

• Benshawsynchronoustechnology

• Solidstatesynchronousrotorcontrol



• Advancedsynchronousmotorprotection

• Canbeaddedtoexistingequipment

• CanbesuppliedwithMX2orMX3startercontrol

• Modbuscommunication



• Reductioninsizecomparedtoexistingfieldcontrol

• Steplesscontrol

• Reducesinrushwhilemaintainingtorque

• Brushtypeandbrushlesscontrol

Synchronous Benefits

TheMX2/MX3seriessolidstatestart-erprovidesreducedvoltagesteplessaccelerationandautomaticsynchro-nizationofthreephaseacsynchro-nousmotors.Synchronousmotorsareutilizedforanumberofreasons.Theyareusedinapplicationsthatrequireprecisemotorspeed.Theyareusedtoobtaingreaterefficiencies,andtheyareusedforfacilitypowerfactorcorrection.

Sincesynchronousmotorscanbeoperatedatleadingpowerfactor,theyareusedtocorrectafacility’slaggingpowerfactorcreatedbyalltheotherinductionmotorsbeingoperated.

Thiscorrectionreducesthepenaltyacustomerpaystheutilitycompanyforcreatingpoorpowerfactor.

Synchronousmotorsarenotsensitivetoelectricalharmonicproblems.

Synchronous Starter Product Highlights:

RATINGS

Horsepower: 20 - 1,500 HP



Voltage: 200 - 1000 Vac

Includes discharge resistor and synchronous excitation package for brush type and brushless motor.

Exciter Ratings: 125 - 250 Vdc 30 - 300 A

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Wound Rotor StarterWITH MX3 TECHNOlOGy - SOlID STATE STARTER WITH WOUND ROTOR CONTROl

Woundrotormotorsaretypicallyusedinapplicationsrequiringhighstartingtorques,alimitednumberofoperatingspeeds,orasteppedaccelerationtoachieveasoftstart.Typicalexistingapplicationsutilizeanelectromechanicalstarteronthestatorandintroducemultiplestagesofresistanceintherotorviacontac-torarrangementstoachieveasoftramp.

WiththeMX3technology,woundrotorcontrolisgreatlysimplified.TheMX3technologyconsistsoftwomajorsections:1)Asolid-statesta-torcontrol,and2)asinglestepofresistanceintotherotorcircuitfromaseparate3-phaseresistorbank.Thisachievesthehightorquere-quiredbytheapplication—withlowinrush—whileprovidingasmoothsteplessstart.Thisgreatlyreducesthemaintenancecostofthetypicalelectromechanicalcontrol.

Key Advantages:

• BenshawMX3technology

• Singlesteprotorcontrol



• AdvancedMX3motorprotection

• AdvancedMX3meteringfunction

• Realtimeclock

• 99eventloghistory

• Modbuscapable


• Multistep&variablespeedrotorcontrolavailable


• Reducedinsizeandnumberofresistorsneeded

• Steplesscontrol

• Reducesinrushwhilemaintainingtorque

Single Step Rotor Control

Thesolid-statestarteriswiredtothemotorstatorcircuit,andtheresistorandshortingcontactorarewiredtothemotorrotorcircuit.Thesolidstatestarteracceleratesthemotortoslipspeed(determinedbytheresistancevalue)andthenactivatesthecontac-tortoshorttherotor.Thisallowsthemotortoacceleratetofullspeed.

Multiple Step Rotor Circuit

RBWseriesstarterscanbesuppliedwithmultiplestagesofrotorresistorandcontactorcombinations.Thisarrangementmaybenecessaryformultiplestepstartingofextremelyhighinertialoads,orforcontinuousopera-tionatmultiplespeeds.Multiplestepsofrotorresistancecanbecoordinatedtoachievethis.

Wound Rotor Starter Product Highlights:

Variable Speed Control

VariablespeedcontrolofwoundrotormotorscanbeaccomplishedwiththeMX3technologyseriescontrol.Bymaintainingfulloutputvoltageofthecontrolgoingtothestatorofthewoundrotormotor,andvaryingtheresistanceintherotor,variablespeedisaccomplished.

Resistorsmustberatedforcontinu-ousdutyoperations.Variableloads(pumpsandfans)only.

RATINGS

Horsepower: 20 - 1500 HP



Voltage: 200 - 1000 Vac

Typical Resistance Steps: 1-2

15

PRODUCT OVERVIEW

Engineered Packages

Benshawhasdevelopedadvancedengineering,drafting,materialsmanage-mentandqualitysystemsfocusedondesigningandbuildingcustomersolu-tions.This“BuildtoOrder”capabilitycombinedwithanextensiveinventoryofcontrolcomponents,protectiverelays,circuitbreakers,contactors,enclosuresandotherelectrical/electronicdevicesenablesBenshawtoquicklyshipengineeredproducts.

Control Modifications — Whatever You Specify

• Over250modificationsandaccessoriesareavailable,including:pilotdevices,PLC’s,controlpowertransformers,switches,meters,relays,spaceheaters,andprotectivedevices.

Combination Starters — to Meet Your Requirements

• 15to2,000Acircuitbreakers

• 40to2,000Anon-fuseddisconnects

• 30to800Afusibledisconnect

• Flangeorrotaryhandlemechanism

Power Stacks — to Fit Your Application

• Continuousduty/non-bypassed

• Integralbypass

• Standard,heavy,andsevereduty

• Emergencyacross-the-linebypass

Enclosures — to Match Your Environment

• Standarddesigns—NEMA1,12,4chassis

• Customenclosures

• Specialenclosures—3R,4X,7,9,asspecified

• Motorcontrolcenters

Communication

• Modbus/RS485

MKT 125-003

24/7 Technical SupportBenshawisdedicatedtoprovidingcomprehensive24-hour-a-day,7-day-a-weekphonesupport.Benshawprovidesrepair,spareparts,fieldengineering,retrofit,andtrainingservices,whenandwhereyouneedus.Youcancountonourexperiencedteam,backedbythelatestdiagnosticsandrepairtoolsandanextensivepartsinventorytosupportyouroperations.Call 1.800.203.2416

24/7 Hotline SupportfromouroperationsinPittsburghandListowel(Canada):

• Technicalphonesupport• Overnightpartsshipment• 24-hourservicedispatch• Coordinationofallservicecapabilities

RepairsRepairsaremadeonBenshawequipmentbytrained,experiencedpersonnel,usingthelatestdiagnosticandtestequipment.

Field Servicesareperformedon-sitebyskilledtechnicians,engineers,orcompleteteamsifneeded,including:

• Start-upcommissioning• Fieldrepairs• Fieldanalysis/datacollection• Preventativemaintenance

The Benshaw Product LineAwiderangeofmotorcontrolsanddrivesareavailable:

• Solidstatestartersfractionalupto30,000HPat15kV•ACdrivesto700HP• Electromechanicalcontrolsto800A

Benshaw Expressisa24/7onlineinventoryandorderentrysystemforauthorizedBenshawdistributors:

• 24/7shipment• Eitherairortruckdelivery

Visit us online at benshaw.cwfc.com and benshawexpress.com, or contact: BENSHAW, Inc.

615AlphaDrivePittsburgh,PA15238

Phone:412.968.0100Fax:412.968.5415

BENSHAW Canada

550BrightStreetEastListowel,OntarioN4W3W3

Phone:519.291.5112Fax:519.291.2595

BENSHAW Pueblo

1JetwayCourtPueblo,CO81001

Phone:719.948.1405Fax:719.948.1445

BENSHAW China

No.3QuanhuiRoadWuqingDevelopmentAreaTianjinCity,China301700

Phone:+862282166100Fax:+862282166160

Specifications are subject to change without notice.© 2012 Curtiss-wright Flow Control Corporation.

Documents

Intelligent Low Voltage Solid State Motor Control … · Intelligent Low Voltage Solid State Motor ... • Built-in self-testing (BIST) ... 3 Relay Outputs Configurable to: