Managing three-phase motor performance in demanding automation systems is optimized using the ABB ACS550-01-031A-4 variable frequency drive, which supplies a nominal output current of 31 Amps and 15 kW (20 HP) of normal-duty shaft power. Engineered as an industrial-grade AC drive, this model operates on an input voltage range of 380 to 480 V AC, ensuring steady performance under fluctuating line conditions. The physical frame incorporates an integrated patented swinging choke design that significantly reduces supply line harmonics under both partial and full load conditions. Encased in a protective IP21 enclosure class, it is optimized for clean, wall-mounted indoor vertical installations, enabling close-coupled motor speed and torque regulation across various mechanical processes.
| Parameter | Specification Value |
|---|---|
| Manufacturer | ABB |
| Model Code | ACS550-01-031A-4 |
| Product Series | ACS550 Standard Drive |
| Input Voltage Range | 380 to 480 V AC (+10% / -15%) |
| Number of Phases | 3-Phase |
| Input Frequency | 48 to 63 Hz |
| Nominal Output Current (Normal Use) | 31.0 Amps |
| Nominal Output Current (Heavy Duty) | 24.6 Amps |
| Output Power (Normal Use) | 15 kW (20 HP) |
| Output Power (Heavy Duty) | 11 kW (15 HP) |
| Frame Size | R3 |
| Enclosure Class | IP21 (UL Type 1) |
| Ambient Operating Temperature | -15 to +40 degC (No frost allowed; up to +50 degC with current derating) |
| Efficiency (at nominal power) | 97.5% |
| Dimensions (H x W x D) | 583 mm x 203 mm x 231 mm |
| Net Shipping Weight | 16.00 kg |
| Country of Origin | Finland |
| Terminal Block Designation | Functional Assignment / Wiring Parameter |
|---|---|
| U1, V1, W1 | 3-Phase AC mains input power connection terminals |
| U2, V2, W2 | 3-Phase AC variable frequency output to induction motor |
| UDC+, UDC- | Internal DC intermediate bus connections (for dynamic brake chopper modules) |
| PE (Grounding Terminals) | Protective Earth terminals for input feed and output motor cable shield |
| X1-1 to X1-6 (Analog I/O) | AI1 (Speed Ref), AI2 (Process Ref), AO1 (Frequency), AO2 (Current), 10V Reference, AGND |
| X1-9 to X1-18 (Digital I/O) | DI1 (Start/Stop), DI2 (Fwd/Rev), DI3 to DI6 (Preset Speeds / Ramp select), +24V Aux Output |
| X1-19 to X1-27 (Relay Outputs) | Three programmable relay outputs (RO1: Ready, RO2: Running, RO3: Fault / Active Disturbance) |
This R3-frame unit functions as a direct drop-in replacement for older ACS550-01-031A-4 drives. If migrating parameter configurations via the assistant control panel (ACS-CP-A) from older versions of the drive, ensure that the target drive firmware matches the source version to prevent "Incompatible Parameter" transfer faults.
Frame R3 thermal design relies on efficient forced-air convection. The cooling fan draws air from the bottom; thus, maintaining a minimum clearance of 200 mm above and below the VFD chassis is mandatory. Running this model inside unventilated, high-heat panels without dynamic thermal calculation will cause overtemperature faults (Fault 9: MOTOR OVERTEMP or Fault 3: DEV OVERTEMP) due to heat accumulation on the internal heatsink.
When running on IT networks (ungrounded delta systems), the internal EMC filter must be disconnected by removing the internal EMC grounding screw. Failure to disconnect this filter on an ungrounded system will ground the drive's internal capacitors, causing fatal damage to the input varistors and input bridge rectifier.
CRITICAL WARNING: HIGH VOLTAGE HAZARD
Isolate all electrical feeds prior to removing the front enclosure cover. After de-energizing, wait a minimum of 5 minutes for the internal DC intermediate bus capacitors to discharge. Measure voltage across terminals UDC+ and UDC- using a calibrated voltmeter to ensure potential is below 50 V DC before starting physical service or terminal block termination.
Mount the drive vertically to a flat, non-flammable backplate within an enclosure designed to meet the site ambient requirements.
Run input power cables and output motor cables in separate steel conduits to mitigate high-frequency cross-coupling and electrical noise injection.
Terminate 3-phase incoming power to U1, V1, W1 and dynamic brake/motor lines to U2, V2, W2. Torque terminals according to standard frame R3 specification requirements.
Ground the drive frame using the dedicated PE grounding terminal, and connect the low-voltage control analog/digital signaling using shielded twisted pair cables terminated to the control terminal block.
Global Express Shipping
Returns & Warranty
Manufacturer: ABB
Product No.: ACS550-01-031A-4
Country of origin:Sweden
Product Type: Variable Frequency Drives
Barcode: 85044086
Payment: T/T, Western Union
Weight: 16000g
Dimensions: 583 mm x 203 mm x 231 mm
Shipping port: Xiamen
Warranty: 12 months
Managing three-phase motor performance in demanding automation systems is optimized using the ABB ACS550-01-031A-4 variable frequency drive, which supplies a nominal output current of 31 Amps and 15 kW (20 HP) of normal-duty shaft power. Engineered as an industrial-grade AC drive, this model operates on an input voltage range of 380 to 480 V AC, ensuring steady performance under fluctuating line conditions. The physical frame incorporates an integrated patented swinging choke design that significantly reduces supply line harmonics under both partial and full load conditions. Encased in a protective IP21 enclosure class, it is optimized for clean, wall-mounted indoor vertical installations, enabling close-coupled motor speed and torque regulation across various mechanical processes.
| Parameter | Specification Value |
|---|---|
| Manufacturer | ABB |
| Model Code | ACS550-01-031A-4 |
| Product Series | ACS550 Standard Drive |
| Input Voltage Range | 380 to 480 V AC (+10% / -15%) |
| Number of Phases | 3-Phase |
| Input Frequency | 48 to 63 Hz |
| Nominal Output Current (Normal Use) | 31.0 Amps |
| Nominal Output Current (Heavy Duty) | 24.6 Amps |
| Output Power (Normal Use) | 15 kW (20 HP) |
| Output Power (Heavy Duty) | 11 kW (15 HP) |
| Frame Size | R3 |
| Enclosure Class | IP21 (UL Type 1) |
| Ambient Operating Temperature | -15 to +40 degC (No frost allowed; up to +50 degC with current derating) |
| Efficiency (at nominal power) | 97.5% |
| Dimensions (H x W x D) | 583 mm x 203 mm x 231 mm |
| Net Shipping Weight | 16.00 kg |
| Country of Origin | Finland |
| Terminal Block Designation | Functional Assignment / Wiring Parameter |
|---|---|
| U1, V1, W1 | 3-Phase AC mains input power connection terminals |
| U2, V2, W2 | 3-Phase AC variable frequency output to induction motor |
| UDC+, UDC- | Internal DC intermediate bus connections (for dynamic brake chopper modules) |
| PE (Grounding Terminals) | Protective Earth terminals for input feed and output motor cable shield |
| X1-1 to X1-6 (Analog I/O) | AI1 (Speed Ref), AI2 (Process Ref), AO1 (Frequency), AO2 (Current), 10V Reference, AGND |
| X1-9 to X1-18 (Digital I/O) | DI1 (Start/Stop), DI2 (Fwd/Rev), DI3 to DI6 (Preset Speeds / Ramp select), +24V Aux Output |
| X1-19 to X1-27 (Relay Outputs) | Three programmable relay outputs (RO1: Ready, RO2: Running, RO3: Fault / Active Disturbance) |
This R3-frame unit functions as a direct drop-in replacement for older ACS550-01-031A-4 drives. If migrating parameter configurations via the assistant control panel (ACS-CP-A) from older versions of the drive, ensure that the target drive firmware matches the source version to prevent "Incompatible Parameter" transfer faults.
Frame R3 thermal design relies on efficient forced-air convection. The cooling fan draws air from the bottom; thus, maintaining a minimum clearance of 200 mm above and below the VFD chassis is mandatory. Running this model inside unventilated, high-heat panels without dynamic thermal calculation will cause overtemperature faults (Fault 9: MOTOR OVERTEMP or Fault 3: DEV OVERTEMP) due to heat accumulation on the internal heatsink.
When running on IT networks (ungrounded delta systems), the internal EMC filter must be disconnected by removing the internal EMC grounding screw. Failure to disconnect this filter on an ungrounded system will ground the drive's internal capacitors, causing fatal damage to the input varistors and input bridge rectifier.
CRITICAL WARNING: HIGH VOLTAGE HAZARD
Isolate all electrical feeds prior to removing the front enclosure cover. After de-energizing, wait a minimum of 5 minutes for the internal DC intermediate bus capacitors to discharge. Measure voltage across terminals UDC+ and UDC- using a calibrated voltmeter to ensure potential is below 50 V DC before starting physical service or terminal block termination.
Mount the drive vertically to a flat, non-flammable backplate within an enclosure designed to meet the site ambient requirements.
Run input power cables and output motor cables in separate steel conduits to mitigate high-frequency cross-coupling and electrical noise injection.
Terminate 3-phase incoming power to U1, V1, W1 and dynamic brake/motor lines to U2, V2, W2. Torque terminals according to standard frame R3 specification requirements.
Ground the drive frame using the dedicated PE grounding terminal, and connect the low-voltage control analog/digital signaling using shielded twisted pair cables terminated to the control terminal block.
Global Express Shipping
Returns & Warranty
Orders are processed and delivered Monday-Friday (excluding public holidays).
For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .
| Country of origin |
Sweden
|
Replacing a 1756-L73 does not automatically mean upgrading its firmware. This guide compares v19.013, v21.011 and v31.011, focusing on project compatibility, HMI communications, legacy networks and...
Implement a 3-SPST switch XOR light circuit in LogixPro or RSLogix 500 using an internal relay bit. Includes truth tables, boolean equations, and verified.
Integrate Allen-Bradley CompactLogix, Caterpillar ATS, and generators into DeltaV DCS over Modbus RTU. Covers ProSoft MVI69-MCM, Miille DIN266 gateways.
ONS instruction fires but the OTE coil never latches in Studio 5000 because the one-shot is only true for one scan. Use OTL/OTU or seal-in logic instead.
Configure Allen-Bradley Kinetix 5500 servo drives on EtherNet/IP. Covers CIP Sync, IEEE 1588 V2 timing, Stratix selection, DLR topology, and HMI.
A moving-average filter is the sliding-window smoother most instrument engineers drop into DCS and PLC analog paths. Here is how the window works, how N and sample time set lag, and when a...
