vacon ac drivescomfort & control in hvac

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save money and the environment

Today’s buildings are sophisticated systems with demanding comfort and control requirements. A typical offi ce building has a large number of pumps and fans for heating, ventilation and air conditioning. Together, with high energy effi ciency and comfort demands, this leads to a need for advanced control features, but also for high reliability. Vacon AC drives combine these require-ments in an easy to use package.

Vacon offers a complete and well-recognized range of AC drives for building automation. Vacon drives can substantial-ly improve the quality and effi ciency of the building’s heating, ventilation and air-conditioning systems.

Saves The Environment

The protection of nature and environment has become an increasing global concern for our society. The pressureon the environment is increasing all the time and action is needed to redirect this otherwise adverse trend towards a more sustainable goal. The AC drive helps to increase the energy effi ciency of a building and thus uses the existing en-ergy resources more effi ciently.

Energy Saving Calculators

How much money and energy can be saved? Energy Saving Calculators are available on the Vacon web site: www.vacon.com. The payback time of an AC drive is usually around one year in HVAC systems.

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can be used everywhere

Fans

• Supply and extract ventilation fans• Variable Air Volume VAV systems• Constant Air Volume CAV systems• Cooling tower fans• Condenser fans• Boiler fans• Car park ventilation fans• Stairway ventilation

Pumps

• Chilling• Heating• Booster• Pressuration set• Cold and hot water pumps• Cooling tower pumps• Delta P regulation on heat exchangers• Swimming pool pumps

Compressors

• Chilling• Clean air compressors• Gas compressors• Heat pumps

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The well packaged hardware combined with user friendly software makes Vacon NX the preferred solution for HVAC. The visually guided start-up function ensures that the Vacon AC drive will be fully operational after a few keypresses.

easy to set up

Start-up wizard –fastest and easiest setup with the keypad

Vacon NXL drives come with a special 4-step start-up wizard, which makes it possible to set up basic pump and fan applica-tions in only a few seconds. All instructions can be found in the Vacon NXL quick guide.

The Vacon NXS comprehensive wizard guides you through the setup so that all the necessary start-up parameters and set-tings are determined.

Vacon PC tool –fastest and easiest setup with the PC

The Vacon NCDrive tool offers an easy way to save and confi g-ure the drive settings.

Advantage NXS NXL

Start-up Wizard x x

Motor Auto-Identifi cation x x

Parameter Copy with Keypad x

Parameter Copy with PC x x

Local Language x

Easy Local - Remote Select x x

Multi Monitor x

Panel Light x x

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The mechanical design is extremely compact. The IP54 units in particular are among the smallest AC drives in the market. All units are suitable for both wall and enclosure mounting with all neces-sary components integrated: EMC fi lters, input chokes, cable protection, dust and water protec-tion. The effective super-cooling principle allows high ambient temperatures and high switching frequencies without derating.

the best features

Fieldbus options:

• Modbus RTU • Metasys N2• LonWorks• BACnet• Modbus/TCP (Ethernet)• Profi bus DP• CANopen• DeviceNet

Separate control unit

Removable display panel

Separated cooling channel(no electronics in air fl ow)

Easily replaceable,temperature-controlledcooling fan

Integrated input choke as standard

Easy to access power terminalsunder the protective plate

Integrated EMC fi lters as standard

Easily confi gurable and versatile I/O to meet all requirements

Power unit fully enclosed in metal

Advantage NXS NXL

Protection classes IP21 and IP54 x x

Modular Design x x

Separated Cooling Channel x x

Temperature Controlled Fan x x

Easily Replaceable Fan x x

Input Chokes as Standard x x

Integrated EMC Filters x x

Option Board Slots 5 pcs 2 pcs

Fieldbus Options x x

RS485 as Standard x

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Advantage NXS NXL

Open Loop Vector Cotrol x x

150 % Starting Torque x x

Standard Switching Frequency 10 kHz 6 kHz

Vacon Flying Start x x

Prohibit Frequency Ranges 3 ranges 1 range

Overtemperature Ride Through x x

Power Loss Ride Through x x

Auto-Restart Function x x

Motor DC Heating x x

True Output Switching x x

Prohibit frequency ranges -no resonances

Any resonance in the system can be avoided by overriding the critical frequencies.

High switching frequency –low motor noise

Near sinusoidal motor current and extremely low noise is reached because of the advanced motor control and high pulse frequency.

Vacon Flying start –best in performance

Flying start allows the fan or pump to start smoothly if the shaft is already rotating when the drive is started. The Vacon NX syncronizes itself to the motor quickly and reliably, and ad-justs the speed to the reference value.

Triples operation –reliable system

Vacon NX AC drives are designed to achieve trip free operation even in abnormal situations.• Overtemperature ride through reduces the switching fre- quency, if the temperature of the drive rises too high.• Power loss ride through can adapt to sudden voltage drops in the supply voltage by automatically adjusting the output frequency.• The true output switching function ensures the automatic drive stops and starts when the motor disconnect switch is operated.• Auto-restart is used to automatically restart the AC drive in case of a trip.

offers the best control

Vacon AC drives are the best choice to ensure a trouble free HVAC system. Smooth starts without torque shocks minimize mechanical stress, thus the need for maintenance. The noise of the mo-tors and air-conditioning ducts is kept to a minimum and yet, maximum comfort is still attained. In addition to this, the drive includes advanced functions that increase reliability and performance of the system.

Extensive Protections -prevent failures

• Motor stall• Broken belt/Dry pump/Motor under underload • Earth fault• Over current• Over/Under voltage• Drive overtemperature• Auxiliary voltage supply

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and all the possibilities

PID Controller - integrated functionality

• Delta P Regulation with two standard pressure transmitters. No special transmitters required.• Sleep Mode function will stop the pump when the demand is low to save energy and extend the lifetime of the pump.• Normal and Inverse Regulation of the PID controller for all control tasks.• PFC Cascade Controller with integrated auto change function for pressure booster sets and cooling compressor.• Fire Mode can be activated in case of fi re. If a fi re occurs, this function will enable the drive to maximize the time that the critical functions can operate.

Energy Saving Mode –highest effi ciency

Energy saving is one of the main reasons for choosing AC drives to be used in HVAC systems. The Energy Saving Mode (Automatic fl ux optimization) further improves the effi ciency of the motor by reducing the voltage when the full torque is not needed.

Advantage NXS NXL

Vacon NX PID x x

Sleep Mode x x

Fire Mode (Option) x x

Pump and Fan Cascade Controller 1+4 pumps 1+3 pumps

Energy Saving Mode x x

Delta P Regulation x x

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for all environments

The product family standard EN61800-3 sets limits for both emissions and immunity from radio frequency disturbances. The environment has been divided into the 1st and 2nd envi-ronment, which, in practice, means public and industrial net-works.

Radio Frequency Interference (RFI) fi lters are typically re-quired to meet the EN61800-3 standard. These fi lters are inte-grated in the Vacon NXL (IP21 and IP54 units) and Vacon NXS as standard.

Vacon NXL (IP21 and IP54 units) and Vacon NXS fulfi l all the requirements of the 1st and 2nd environment. No additional RFI fi lters or cabinets are required.

The extremely low emission solution (Vacon class C) is avail-able for sensitive locations such as hospitals and airports.

Standards: See Technical data.

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4 3

1

5

5

2

VACON NX EMC Hospital Airport Residential Area Commercial Light industry Area Heavy industry

C O O

H R R R R O O

L R R

T R (IT Network)

R = Required ; O = Optional

EMC Selection Table

1 2 3 4 5 6

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proven technology for hvac

1. Hotel Golf and Wellness in Ljubljana, Slovenia

Vacon AC drives in the range of 1.1-22 kW (IP54) are controlling fans and pumps. Project delivered by Met-ronik d.o.o., Vacon partner in Slovenia.

2. Britomart Transport Center in Auckland, New Zealand

World’s fi rst underground railway station for diesel lo-comotives. Vacon AC drives up to 300 kW are control-ling the ventilation system. Project delivered by CMG Pty Ltd, Vacon partner in Australia and New Zealand.

3. Shopping Center Sello in Espoo, Finland

Vacon AC drives in the range of 1.1-30 kW are control-ling fans and pumps.

4. Royal Caribbean Cruisers

Vacon AC drives in the range of 0.75-30 kW are con-trolling HVAC systems on 6 different cruise vessels.

5. Victoria Insurance tower in Düsseldorf, Germany

Vacon AC drives in the range of 1.1–75 kW are control-ling pumps and fans.

6. Karolinska University Hospital in Stockholm, Sweden

Vacon AC drives in the range of 1.1-30 kW (IP54) are controlling fans and pumps.

7. Rondo 1 in Warsaw, Poland

Vacon AC drives in the range of 1.1–75 kW are control-ling fans. Project delivered by Telko-Poland Sp. z o.o., Vacon partner in Poland.

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5

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ratings & dimensions

* Type code of the IP21 unit. The type code of the IP54 unit: Replace ”2”with ”5”; for example: NXL 0003 5C5H1.Add ”AA”to the end, if two relays are required (Add ”AI”if two relays + thermistor input are required); for example: NXL 0003 5C2H1 AA.

* Type code of the IP21 unit. The type code of the IP54 unit: Replace “2” with “5”; for example: NXS 0003 5A5H1 SSS A1A2. Replace A2 with A3, if thermistor input is required.

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Vacon NXL*

Loadability Motor shaft power

Framesize

DimensionsW*H*D (mm)

Ratedcontinuous

currentI L (A)

10%overloadcurrent

(A)

Maximumcurrent I S

400 V supply

10%overload

40°CP (kW)

NXLNXLNXLNXLNXLNXL

000300040005000700090012

5 C 2 H 15 C 2 H 15 C 2 H 15 C 2 H 15 C 2 H 15 C 2 H 1

3.34.35.67.69

12

3.64.76.28.49.9

13.2

4.46.28.6

10.81418

1.11.52.234

5.5

MF4MF4MF4MF4MF4MF4

128*292*190128*292*190128*292*190128*292*190128*292*190128*292*190

NXLNXLNXL

001600230031

5 C 2 H 15 C 2 H 15 C 2 H 1

162331

17.625.334

243246

7.51115

MF5MF5MF5

144*391*214144*391*214144*391*214

NXLNXLNXL

003800460061

5 C 2 H 15 C 2 H 15 C 2 H 1

384661

425167

627692

18.52230

MF6MF6MF6

195*519*237195*519*237195*519*237

Vacon NXS*

Loadability Motor shaft power

Framesize

DimensionsW*H*D (mm)

Ratedcontinuous

currentI L (A)

10%overloadcurrent

(A)

Maximumcurrent I S

400 V supply

10%overload

40°CP (kW)

NXS 0003 5 A 2 H 1 SSSA1A2NXS 0004 5 A 2 H 1 SSSA1A2NXS 0005 5 A 2 H 1 SSSA1A2NXS 0007 5 A 2 H 1 SSSA1A2NXS 0009 5 A 2 H 1 SSSA1A2NXS 0012 5 A 2 H 1 SSSA1A2

3.34.35.67.69

12

3.64.76.28.49.9

13.2

4.46.28.6

10.81418

1.11.52.234

5.5

FR4FR4FR4FR4FR4FR4

128*292*190128*292*190128*292*190128*292*190128*292*190128*292*190

NXS 0016 5 A 2 H 1 SSSA1A2NXS 0022 5 A 2 H 1 SSSA1A2NXS 0031 5 A 2 H 1 SSSA1A2

162331

17.625.334

243246

7.51115

FR5FR5FR5

144*391*214144*391*214144*391*214

NXS 0038 5 A 2 H 1 SSSA1A2NXS 0046 5 A 2 H 1 SSSA1A2NXS 0061 5 A 2 H 1 SSSA1A2

384661

425167

627692

18.52230

FR6FR6FR6

195*519*237195*519*237195*519*237

NXS 0072 5 A 2 H 0 SSSA1A2NXS 0087 5 A 2 H 0 SSSA1A2NXS 0105 5 A 2 H 0 SSSA1A2

7287

105

7996116

122144174

374555

FR7FR7FR7

237*591*257237*591*257237*591*257

NXS 0140 5 A 2 H 0 SSSA1A2NXS 0168 5 A 2 H 0 SSSA1A2NXS 0205 5 A 2 H 0 SSSA1A2

140170205

154187226

210280336

7590110

FR8FR8FR8

291*758*344291*758*344291*758*344

NXS 0261 5 A 2 H 0 SSFA1A2NXS 0300 5 A 2 H 0 SSFA1A2

261300

287330

349444

132160

FR9FR9

480*1150*362480*1150*362

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technical data

Mainsconnection

Input voltage Uin 380…500 V; 208…240 V; 525…690 V; (-15%…+10%)

Input frequency 45…66 Hz

Connection to mains Once per minute or less (normal case)

Motorconnection

Output voltage 0—Uin

Continuous output current See Ratings and Dimensions

Overloadability 1.1 x IL (1 min/10 min)

Max. starting current Is for 2 s every 20 s, see Ratings and Dimensions

Output frequency 0…320 Hz; up to 7200 Hz with special software (NXS)

Frequency resolution 0.01 Hz

Controlcharacteristics

Control method Frequency control U/f; Open Loop Vector Control

Switching frequency NX_5:

1…16 kHz; Factory default 10 kHz (NXL 6 kHz)From NX_0072:1…10 kHz; Factory default 3.6 kHz

Field weakening point 8…320 Hz

Acceleration time 0…3000 sec

Deceleration time 0…3000 sec

Braking DC brake: 30 % * TN (without brake resistor), fl ux braking, brake chopper

Ambient conditions

Ambient operating temperature –10°C (no frost)…+40°C: IL

Storage temperature –40°C…+70°C

Relative humidity 0 to 95 % RH, non-condensing, non-corrosive, no dripping water

Air quality:- chemical vapours- particles

IEC 721-3-3, unit in operation, class 3C2IEC 721-3-3, unit in operation, class 3S2

Altitude 100% load capacity (no derating) up to 1000 m1% derating for each 100 m above 1000 mMax. altitudes: NXS2: 3000 m; NX_5 (380...400 V): 3000 m; NX_5 (415...500): 2000 m; NX_6: 2000 m

VibrationEN50178/EN60068-2-6

5...150 Hz: Displacement amplitude 1 mm (peak) at 5…15.8 HzMax acceleration amplitude 1 G at 15.8…150 Hz

ShockEN50178, EN60068-2-27

UPS Drop Test (according to UPS weights)Storage and shipping: max 15 G, 11 ms (in package)

Enclosure class IP21 and IP54

EMC Immunity Fulfi ls all EMC immunity requirements

Emissions EMC level C: EN 61800-3 (2004), category C1EMC level H: EN 61800-3 (2004), category C2

Safety EN 61800-5-1 (2003), CE, UL, C-UL, C-Tick; (see unit nameplate for more detailed approvals)

Controlconnections

Analogue inputs 2 pcs confi gurable: 0…+10 V, Ri = 200 kΩ, resolution 0.1%, accuracy ±1%0(4)...20 mA; Ri = 250 Ω differential resolution 0.1%, accuracy ±1%

Digital inputs NXS 6 pcs, NXL 3+1 pcs: 18…30 VDC

Auxiliary voltage +24 V, ±15%, max. 250 mA, (NXL 100 mA)

Output reference voltage +10 V, +3%, max. load 10 mA

Analogue output 0(4)…20 mA; RL max. 500 Ω, resolution 10 bit, accuracy ±2%

Digital output Open collector output, 50 mA/48 V (NXS)

Relay outputs NXS: 2 programmable change-over (NO/NC) relay outputs (OPT-A3: NO/NC+NO)NXL: 1 programmable change-over (NO/NC), add OPT-AA or OPT-AI option board in case two relays are required. Switching capacity: 24 VDC/8 A, 250 VAC/8 A,(NO/NC), 125 VDC/0.4 A. Min. switching load: 5 V/10 mA

Thermistor input (OPT-A3) Galvanically isolated, Rtrip = 4.7 kΩ

RS485 Modbus RTU as standard in Vacon NXL

Protections Overvoltage, undervoltage, earth fault, mains supervision, motor phase supervision, overcurrent, unit overtemperature, motor overload, motor stall, motor underload (dry pump, broken belt), short-circuit of +24 V and +10 V reference voltages

Vacon Plc

Runsorintie 7, 65380 Vaasa, Finland

Tel. +358 (0)201 2121, Fax +358 (0)201 212 205

www.vacon.com, email: info@vacon.com

Subject to changes without notice.

Vacon Partner

BC

0010

6B