Product Category：PowerFlex 755 AC Drive
Brand：Allen-Bradley (Rockwell Automation)
Model Number：20F1ANC456JA0NNNNN
Document Version：V1.0 (Industrial Standard)
Applicable Standard：IEC 61800-5-1, UL 508C, CSA C22.2 No. 14
1. Core Electrical Specifications
| Parameter | Rating | Unit | Notes |
|---|---|---|---|
| Rated Input Voltage | 480 V AC (3-Phase) | V | 380-480 V AC Operating Range |
| Rated Input Frequency | 50/60 | Hz | ±5 Hz Tolerance |
| Rated Output Current | 456 | A | Continuous Duty @ 40°C Ambient |
| Rated Output Power | 250 | kW | 480 V AC, 3-Phase, 0.8 PF |
| Max Output Voltage | 480 | V AC | Line Voltage Derated, No Overvoltage |
| Max Output Frequency | 500 | Hz | Programmable 0-500 Hz |
| Input Phase Configuration | 3-Phase | – | No Single-Phase Operation Support |
| DC Bus Voltage | 650-690 | V DC | Auto-Regulated, Regenerative Capable |
2. Mechanical Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Enclosure Type | NEMA 1 / IP21 | – | Standard Open Type (Indoor Use) |
| Mounting Method | Floor Mount | – | Fixed Base, Flange Mount Optional |
| Overall Height | 1850 | mm | Including Terminal Cover |
| Overall Width | 950 | mm | Panel Clearance Req: 300 mm (Sides) |
| Overall Depth | 800 | mm | Panel Clearance Req: 400 mm (Rear) |
| Net Weight | 680 | kg | Without Optional Accessories |
| Gross Weight | 750 | kg | Packaged with Standard Foam |
| Terminal Block Type | Copper Lug (Heavy-Duty) | – | 4/0 AWG to 250 kcmil Wire Range |
3. Operational Specifications
3.1 Operating Conditions
| Condition | Min | Max | Unit | |
|---|---|---|---|---|
| Ambient Operating Temperature | 0 | 40 | °C | 50°C with 10% Current Derate |
| Storage Temperature | -40 | 70 | °C | No Condensation |
| Relative Humidity | 5 | 95 | % | Non-Condensing, <2000 m Altitude |
| Altitude | 0 | 2000 | m | 1% Derate per 100 m Above 2000 m |
| Vibration Resistance | 2.9 | m/s² | 5-150 Hz, IEC 60068-2-6 | |
| Shock Resistance | 15 | g | 11 ms, Half-Sine, IEC 60068-2-27 |
3.2 Control Performance
| Parameter | Specification | Unit | |
|---|---|---|---|
| Speed Regulation | ±0.01 | % | Closed-Loop Vector Control |
| Torque Response Time | <5 | ms | 0-100% Rated Torque |
| Acceleration Time | 0.1 | s | Min, Programmable 0.1-3600 s |
| Deceleration Time | 0.1 | s | Min, Programmable 0.1-3600 s |
| Control Modes | V/Hz, Sensorless Vector, Closed-Loop Vector, Torque Control | – | Multi-Mode Selectable via HMI/PLC |
| Pulse Input Frequency | 0-100 | kHz | Differential, 5-24 V DC |
| Analog Input | 0-10 V DC, 4-20 mA | – | 2 Channels, 12-Bit Resolution |
| Analog Output | 0-10 V DC, 4-20 mA | – | 2 Channels, 12-Bit Resolution |
4. Protection Features
| Protection Type | Specification |
|---|---|
| Overcurrent Protection | Instantaneous, 150% Rated Current (1s), 200% (0.1s) |
| Overvoltage Protection | DC Bus >780 V DC, Auto Shutdown |
| Undervoltage Protection | DC Bus <400 V DC, Auto Shutdown |
| Overheating Protection | IGBT Module, Heatsink, Motor Thermistor Input (PTC/NTC) |
| Earth Fault Protection | Residual Current Detection, <500 mA Trip |
| Phase Loss Protection | Input/Output Phase Loss, Auto Alarm/Shutdown |
| Short Circuit Protection | IGBT Short Circuit, Instantaneous Shutdown (No Damage) |
| Motor Thermal Protection | Built-in Model, External Thermistor Input Support |
| Surge Protection | Input Transient Voltage (2 kV), IEC 61000-4-5 |
5. Communication Interfaces
| Interface | Standard | Protocol | Notes |
|---|---|---|---|
| Ethernet/IP | IEEE 802.3 | Ethernet/IP | Built-in, Dual Port (Redundant) |
| Modbus TCP/IP | IEEE 802.3 | Modbus TCP | Supported via Ethernet/IP |
| DeviceNet | CANbus | DeviceNet | Optional Adapter (20-COMM-D) |
| Profibus DP | IEC 61158 | Profibus DP V1 | Optional Adapter (20-COMM-P) |
| ControlNet | Rockwell | ControlNet | Optional Adapter (20-COMM-C) |
| USB | USB 2.0 | – | Local Programming, Data Logging |
| RS-232/RS-485 | EIA/TIA | Modbus RTU | Built-in, 1 Port |
6. Power Consumption & Efficiency
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| No-Load Power Consumption | <500 | W | 480 V AC Input |
| Full-Load Efficiency | ≥98.5 | % | 480 V AC, 100% Load, 50/60 Hz |
| Partial-Load Efficiency (50%) | ≥98.0 | % | 480 V AC, 50% Load, 50/60 Hz |
| Power Factor (Input) | ≥0.95 | – | Full Load, No Harmonic Filter |
| Harmonic Distortion (THD) | <5 | % | With Optional Line Reactor (3%) |
7. Compliance & Certifications
- IEC 61800-5-1: Adjustable Speed Electrical Power Drive Systems
- UL 508C: Industrial Control Equipment
- CSA C22.2 No. 14: Industrial Control Equipment
- CE Mark: Low Voltage Directive (LVD), EMC Directive
- RoHS 2: 2011/65/EU, Restriction of Hazardous Substances
- ATEX: Optional (20F-ATEX), Ex nA IIC T4 Gc (Non-Sparking)
- IECEx: Optional (20F-IECEx), Ex nA IIC T4 Gc
8. Optional Accessories
| Accessory Model | Description | Compatibility |
|---|---|---|
| 20-COMM-E | Ethernet/IP Adapter (Redundant) | Full |
| 20-COMM-P | Profibus DP V1 Adapter | Full |
| 1321-3R450-B | 3% Line Reactor (450 A, 480 V) | Input Side |
| 1336-RFB450 | Regenerative Feedback Unit (450 A) | DC Bus Side |
| 20F-HS22 | Heatsink Extension Kit | High Ambient Temp |
| 20F-CT450 | Current Transducer Kit (450 A) | Current Monitoring |
| 20-HMI-A3 | Advanced HMI Keypad | Local Operation |
9. Ordering Code Breakdown (20F1ANC456JA0NNNNN)
| Segment | Code | Description |
|---|---|---|
| 20F | – | PowerFlex 755 AC Drive Platform |
| 1 | – | Frame Size 1 (Heavy-Duty) |
| A | – | Enclosure: NEMA 1 / IP21 |
| N | – | Cooling: Forced Air (Standard) |
| C | – | Control Power: 120 V AC Input |
| 456 | – | Rated Output Current: 456 A |
| J | – | Input Voltage: 480 V AC (3-Phase) |
| A | – | Firmware Version: Standard (V8.0+) |
| 0 | – | Option Level: Base Model (No Extra Options) |
| NNNNN | – | No Custom Configurations (Standard) |
