Product Model
ATV21WU15N4C

Selling Points
- 1High-performance variable speed drive for HVAC applications.
- 2Integrated Class C2 EMC filter for reduced harmonics.
- 3IP55 protection for dust and damp environments.
- 4Output frequency control from 0.5 to 200Hz.
- 5Compatible with 3-phase asynchronous motors and various building management systems.
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
Parameter | Value | Parameter | Value |
---|---|---|---|
Range of Product | Altivar 21 | Product or Component Type | Variable speed drive |
Product destination | Asynchronous motors | Product Specific Application | Pumps and fans in HVAC |
Assembly style | With heat sink | Component name | ATV21 |
EMC filter | Class B EMC filter integrated | power supply voltage | 380...480 V - 15...10 % |
Phase | 3 phase | Motor power kW | 1.5 kW |
Maximum Horse Power Rating | 2 hp | Line current | 3.2 A 380 V<br />2.6 A 480 V |
Speed range | 1…10 | Transient overtorque | 120 % of nominal motor torque +/- 10 % 60 s |
Asynchronous motor control profile | Current flux vector control (FVC) without speed feedback<br />Quadratic voltage/frequency ratio<br />Energy saving ratio<br />Constant voltage/frequency ratio with automatic IR compensation<br />Constant voltage/frequency ratio | communication port protocol | Modbus |
Type of polarization | No impedance | IP degree of protection | IP54 EN 60530<br />IP54 EN 61800-5-2<br />IP54 IEC 60529<br />IP54 IEC 61800-5-1 |
Option card | Communication card APOGEE FLN<br />Communication card BACnet<br />Communication card LonWorks<br />Communication card METASYS N2 | power supply voltage limits | 323…528 V |
power supply frequency | 50...60 Hz - 5...5 % | power supply frequency limits | 47.5…63 Hz |
Apparent power | 2.8 kVA 380 V | maximum prospective line Isc | 5 kA |
maximum continuous output current | 3.7 A 380 V<br />3.7 A 460 V | Maximum transient current | 4 A 60 s |
Speed drive output frequency | 0.5…200 Hz | Nominal switching frequency | 12 kHz |
Switching frequency | 12...16 kHz with derating factor<br />6...16 kHz adjustable | Speed accuracy | +/- 10 % of nominal slip 0.2 Tn to Tn |
Torque accuracy | +/- 15 % | Regulation loop | Adjustable PI regulator |
Motor slip compensation | Adjustable<br />Automatic whatever the load<br />Not available in voltage/frequency ratio motor control | diagnostic | for DC bus energized 1 LED (red) |
Output voltage | <= power supply voltage | Insulation | Electrical between power and control |
recommended type of cable for mounting in an enclosure | With UL Type 1 kit 3 UL 508 cable 104 °F (40 °C), copper 75 °C / PVC<br />Without mounting kit 1 IEC cable 113 °F (45 °C), copper 70 °C / PVC<br />Without mounting kit 1 IEC cable 113 °F (45 °C), copper 90 °C / XLPE/EPR | Electrical connection | L1/R, L2/S, L3/T terminal 0.009 in² (6 mm²) / AWG 10<br />VIA, VIB, FM, FLA, FLB, FLC, RY, RC, F, R, RES terminal 0.004 in² (2.5 mm²) / AWG 14 |
Tightening torque | 11.5 lbf.in (1.3 N.m), 11.5 lb.in L1/R, L2/S, L3/T)<br />5.3 lbf.in (0.6 N.m) VIA, VIB, FM, FLA, FLB, FLC, RY, RC, F, R, RES) | Supply | Internal supply 24 V DC 21…27 V), <200 mA overload and short-circuit protection<br />Internal supply for reference potentiometer (1 to 10 kOhm) 10.5 V DC +/- 5 %, <10 mA overload and short-circuit protection |
Analogue input number | 2 | Analogue input type | VIA switch-configurable current 0...20 mA 242 Ohm 11 bits<br />VIA switch-configurable voltage 0...10 V DC 24 V max 30000 Ohm 11 bits<br />VIB configurable PTC probe 0...6 probes 1500 Ohm<br />VIB configurable voltage 0...10 V DC 24 V max 30000 Ohm 11 bits |
Sampling duration | F 2 ms +/- 0.5 ms discrete<br />R 2 ms +/- 0.5 ms discrete<br />RES 2 ms +/- 0.5 ms discrete<br />VIA 2 ms +/- 0.5 ms analog<br />VIB 2 ms +/- 0.5 ms analog | Response time | FLA, FLC 7 ms +/- 0.5 ms discrete<br />FLB, FLC 7 ms +/- 0.5 ms discrete<br />FM 2 ms +/- 0.5 ms analog<br />RY, RC 7 ms +/- 0.5 ms discrete |
Accuracy | +/- 1 % FM) for a temperature variation 60 °C<br />+/- 0.6 % VIA) for a temperature variation 60 °C<br />+/- 0.6 % VIB) for a temperature variation 60 °C | Linearity error | FM +/- 0.2 % output<br />VIA +/- 0.15 % of maximum value input<br />VIB +/- 0.15 % of maximum value input |
Analogue output number | 1 | Analogue output type | FM switch-configurable current 0...20 mA 500 Ohm 10 bits<br />FM switch-configurable voltage 0...10 V DC 470 Ohm 10 bits |
Discrete output number | 2 | Discrete output type | Configurable relay logic FLA, FLC) NO - 100000 cycles<br />Configurable relay logic FLB, FLC) NC - 100000 cycles<br />Configurable relay logic RY, RC) NO - 100000 cycles |
Minimum switching current | 3 mA 24 V DC configurable relay logic | Maximum switching current | 2 A 250 V AC inductive cos phi = 0.4 L/R = 7 ms FL, R)<br />2 A 30 V DC inductive cos phi = 0.4 L/R = 7 ms FL, R)<br />5 A 250 V AC resistive cos phi = 1 L/R = 0 ms FL, R)<br />5 A 30 V DC resistive cos phi = 1 L/R = 0 ms FL, R) |
Discrete input type | F programmable 24 V DC level 1 PLC 3500 Ohm<br />R programmable 24 V DC level 1 PLC 3500 Ohm<br />RES programmable 24 V DC level 1 PLC 3500 Ohm | Discrete input logic | Negative logic (sink) F, R, RES), >= 16 V, <= 10 V<br />Positive logic (source) F, R, RES), <= 5 V, >= 11 V |
Acceleration and deceleration ramps | Linear adjustable separately from 0.01 to 3200 s<br />Automatic based on the load | Braking to standstill | By DC injection |
Protection type | Against input phase loss drive<br />Break on the control circuit drive<br />Input phase breaks drive<br />Line supply overvoltage and undervoltage drive<br />Line supply undervoltage drive<br />Overcurrent between output phases and earth drive<br />Overheating protection drive<br />Overvoltages on the DC bus drive<br />Short-circuit between motor phases drive<br />Thermal power stage drive<br />Motor phase break motor<br />Thermal protection motor<br />With PTC probes motor<br />Against exceeding limit speed drive | Insulation resistance | >= 1 mOhm 500 V DC for 1 minute |
Frequency resolution | Analog input 0.024/50 Hz<br />Display unit 0.1 Hz | Connector Type | 1 RJ45 |
Physical interface | 2-wire RS 485 | Transmission frame | RTU |
Transmission Rate | 9600 bps or 19200 bps | Data format | 8 bits, 1 stop, odd even or no configurable parity |
Number of addresses | 1…247 | Communication Service | Write single register (06)<br />Write multiple registers (16) 2 words maximum<br />Read device identification (43)<br />Monitoring inhibitable<br />Read holding registers (03) 2 words maximum<br />Time out setting from 0.1 to 100 s |
marking | CE | Operating position | Vertical +/- 10 degree |
Height | 11.7 in (297 mm) | Width | 8.5 in (215 mm) |
Depth | 7.6 in (192 mm) | Net Weight | 16.5 lb(US) (7.5 kg) |
Noise level | 48 dB 86/188/EEC | Dielectric strength | 3535 V DC between earth and power terminals<br />5092 V DC between control and power terminals |
Electromagnetic compatibility | 1.2/50 µs - 8/20 µs surge immunity test level 3 IEC 61000-4-5<br />Conducted radio-frequency immunity test level 3 IEC 61000-4-6<br />Electrical fast transient/burst immunity test level 4 IEC 61000-4-4<br />Electrostatic discharge immunity test level 3 IEC 61000-4-2<br />Radiated radio-frequency electromagnetic field immunity test level 3 IEC 61000-4-3<br />Voltage dips and interruptions immunity test IEC 61000-4-11 | Standards | EN 61800-3 environments 2 category C1<br />EN 61800-3 environments 1 category C3<br />IEC 61800-3 environments 1 category C3<br />IEC 61800-3 environments 1 category C1<br />IEC 61800-3 environments 2 category C3<br />EN 61800-5-1<br />IEC 61800-3<br />IEC 61800-3 environments 1 category C2<br />EN 61800-3 environments 1 category C2<br />EN 61800-3 category C1<br />IEC 61800-5-1<br />EN 61800-3 environments 1 category C1<br />IEC 61800-3 category C1<br />IEC 61800-3 environments 2 category C2<br />IEC 61800-3 environments 2 category C1<br />EN 61800-3 environments 2 category C2<br />EN 55011 group 1 class B<br />EN 61800-3<br />EN 61800-3 environments 2 category C3 |
Product Certifications | UL<br />NOM 117<br />C-tick<br />CSA | Vibration resistance | 1 gn 13…200 Hz)EN/IEC 60068-2-8<br />1.5 mm 3…13 Hz)EN/IEC 60068-2-6 |
Shock resistance | 15 gn 11 ms IEC 60068-2-27 | Pollution degree | 2 IEC 61800-5-1 |
Environmental characteristic | Classes 3C1 IEC 60721-3-3<br />Classes 3S2 IEC 60721-3-3 | Relative humidity | 5…95 % without condensation IEC 60068-2-3<br />5…95 % without dripping water IEC 60068-2-3 |
Ambient air temperature for operation | 14…104 °F (-10…40 °C) without derating)<br />104…122 °F (40…50 °C) with derating factor) | Ambient Air Temperature for Storage | -13…158 °F (-25…70 °C) |
Operating altitude | <= 6561.68 ft (2000 m)<br />3280.84...9842.52 ft (1000...3000 m) limited to 2000 m for the Corner Grounded distribution network |
Specifications may be subject to change without notice