Allen-Bradley 25A-D017N114
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The Allen-Bradley 25A-D017N114 is a PowerFlex 25A series AC variable frequency drive manufactured by Allen-Bradley, a brand of Rockwell Automation. This unit belongs to the PowerFlex 25A compact drive family, designed to provide precise speed and torque control of three-phase AC induction motors. The SKU 25A-D017N114 identifies a specific configuration within this series, rated for 480V AC three-phase input with a continuous output current of 17 amps, corresponding to approximately 10 HP (7.5 kW) motor power.
The PowerFlex 25A drive supports multiple control modes including V/Hz, sensorless vector, and closed-loop vector control, providing flexibility across a range of motor control applications. It features an embedded EtherNet/IP communication port as standard, enabling seamless integration into Rockwell Automation control architectures and allowing parameter configuration, monitoring, and control via network. The drive includes a built-in EMC filter, a safe torque-off (STO) safety function compliant with SIL 2 / PLd requirements, and supports optional I/O expansion and encoder feedback modules. The compact design incorporates a digital operator interface and supports parameter storage via an optional memory module for rapid drive replacement.
The PowerFlex 25A is widely deployed in manufacturing, material handling, packaging, pump and fan control, and HVAC applications. Its compact footprint and flexible mounting options make it suitable for machine-level installations where panel space is limited. The integrated EtherNet/IP connectivity and compatibility with Rockwell Automation Studio 5000 and Connected Components Workbench software make it a practical choice for OEMs and system integrators building networked automation systems.
Technical Specifications
| Series / Product Family | PowerFlex 25A |
|---|---|
| Input Voltage | 480V AC, 3-phase |
| Input Frequency | 50/60 Hz |
| Output Current (Continuous) | 17 A |
| Power Rating | 7.5 kW (10 HP) |
| Output Voltage | 0 – 480V AC, 3-phase |
| Control Type | V/Hz, Sensorless Vector, Closed-Loop Vector |
| Communication Interface | EtherNet/IP (embedded) |
| Safety Features | Safe Torque-Off (STO), SIL 2 / PLd |
| Operating Temperature | 0 to 50 degrees C (with derating above 40 degrees C) |
| Storage Temperature | -40 to 70 degrees C |
| Relative Humidity | 5 to 95% non-condensing |
| IP / Protection Rating | IP20 / NEMA Type 1 |
| Mounting | Panel mount, DIN rail optional |
| Certifications | UL, CE, RCM |
| Feedback Interface | Optional encoder feedback module |
Common Fault Codes
- Fault Code F002
- Auxiliary input fault. The auxiliary input interlock has opened or is not satisfied.
Check the wiring and status of the auxiliary input terminals. Verify that any external interlock devices connected to the auxiliary input are closed and functioning correctly. - Fault Code F003
- Power loss fault. DC bus voltage dropped below the minimum threshold during operation.
Check input supply voltage for sags or interruptions. Verify input fuses and connections. Increase the power loss ride-through time parameter if transient dips are occurring. - Fault Code F004
- Undervoltage fault. DC bus voltage is below the minimum acceptable level.
Measure the incoming AC supply voltage at the drive input terminals. Verify that supply voltage is within the rated range (480V AC +/- 10%). Check for loose connections or failing supply components. - Fault Code F005
- Overvoltage fault. DC bus voltage has exceeded the maximum allowable level, typically caused by regenerative energy from a decelerating load.
Increase the deceleration time parameter to reduce regenerative energy. Consider adding a dynamic braking resistor if the load has high inertia. Check for supply voltage spikes. - Fault Code F006
- Motor stall fault. The drive has detected that the motor is stalled or unable to accelerate within the configured stall time.
Check for mechanical obstructions on the driven load. Verify motor and load sizing relative to drive rating. Adjust stall fault timeout and current limit parameters as appropriate. - Fault Code F012
- HW overcurrent fault. Output current has exceeded the hardware overcurrent trip level.
Check motor wiring for short circuits or ground faults. Verify motor insulation resistance. Ensure load is not jammed. Confirm drive and motor ratings are compatible. - Fault Code F033
- Auto-tune fault. The auto-tune procedure did not complete successfully.
Ensure the motor is disconnected from the load during static auto-tune. Verify motor nameplate data entered in parameters is accurate. Retry the auto-tune procedure. - Fault Code F081
- Communication loss fault. The drive has lost communication with the network master or controller via EtherNet/IP.
Check EtherNet/IP cable connections and network switch status. Verify IP address configuration and controller connection settings. Review the communication loss action parameter to configure appropriate drive response.
Frequently Asked Questions
What is the motor power and output current rating of the 25A-D017N114?
The 25A-D017N114 is rated for 7.5 kW (10 HP) at 480V AC three-phase, with a continuous output current of 17 amps. This makes it suitable for driving standard three-phase induction motors of up to 10 HP at 480V.
What communication protocol does the 25A-D017N114 support?
The 25A-D017N114 has an embedded EtherNet/IP port as standard, allowing direct integration with Rockwell Automation PLCs and controllers. No additional communication adapter is required for EtherNet/IP connectivity.
Does the 25A-D017N114 include a Safe Torque-Off (STO) safety function?
Yes, the PowerFlex 25A includes an integrated Safe Torque-Off (STO) function rated to SIL 2 and PLd, which can be used to safely disable drive output without removing main power from the drive.
Can the 25A-D017N114 be used with an encoder for closed-loop speed control?
Yes, the PowerFlex 25A supports closed-loop vector control with encoder feedback via an optional encoder feedback module that mounts directly to the drive. The base drive operates in open-loop V/Hz or sensorless vector mode without the module.
What software is used to configure and program the 25A-D017N114?
The 25A-D017N114 can be configured using Rockwell Automation Connected Components Workbench (CCW) software or Studio 5000 Logix Designer. Parameters can also be set via the optional LCD operator interface or through the EtherNet/IP network connection.
Troubleshooting
Drive displays an overvoltage fault during deceleration
Monitor the DC bus voltage during deceleration using the drive diagnostic parameters. If DC bus voltage rises above the overvoltage trip threshold, regenerative energy from the load is exceeding the drive's ability to dissipate it.
Increase the deceleration time parameter to reduce the rate of energy return. If the application requires fast deceleration, install a dynamic braking resistor kit compatible with the PowerFlex 25A frame size.
Drive does not start and displays a communication loss fault
Check the EtherNet/IP port LED indicators on the drive. A flashing or off status on the network status LED indicates loss of connection to the controller. Verify the IP address assigned to the drive matches the controller's configured connection target.
Inspect and reseat the EtherNet/IP cable. Verify network switch operation and cable integrity. Confirm the drive IP address using the operator interface or CCW software and ensure it matches the controller configuration. Check the communication loss action parameter.
Motor runs but speed does not match the commanded reference
Check the speed reference source parameter to confirm the correct input is selected (network, analog, or keypad). Measure the analog input signal level if an analog reference is used. Verify that speed scaling parameters (minimum and maximum frequency) are set correctly.
Correct the speed reference source parameter if it is set to an unintended input. If using an analog input, verify the signal wiring and source device output level. Adjust the analog input scaling parameters to match the signal range of the reference source.
Drive trips on overcurrent fault immediately after start
Check motor output wiring for short circuits between phases or to ground using a megohmmeter. Verify that the motor nameplate current rating matches the drive output current rating. Check if the acceleration time is set too short for the connected load inertia.
Repair any wiring faults found during insulation resistance testing. Increase the acceleration time parameter to reduce inrush current during starting. If the motor is undersized for the load, review motor and drive sizing. Verify current limit parameters are set appropriately.
Drive powers up but the operator interface display is blank or unresponsive
Verify that the operator interface module is fully seated and locked onto the drive. Check the control power supply voltage at the drive control terminals. Inspect the operator interface connector for bent or damaged pins.
Remove and reseat the operator interface module firmly until it clicks into place. If the display remains blank, attempt to connect via CCW software over EtherNet/IP to determine if the drive itself is operational. Replace the operator interface module if the drive responds via software but the display remains non-functional.
| Condition | Repair, Used, Refurbished, New in box (sealed) |
|---|
Common defects
Common defects on a Allen-Bradley 25A-D017N114 are:
Power Supply Related Issues
- No power / drive not turning on
- Blown fuses
- Defective rectifier bridge
- Damaged DC bus capacitors
- IGBT / MOSFET module failure
- Overvoltage / undervoltage errors
Control & Electronics Failures
- Faulty control board or PCB damage
- Firmware or memory corruption
- Fieldbus communication errors (Profibus, Modbus, EtherCAT, CANopen)
- Input / output circuit damage
- Gate driver module failure
Motor Control Problems
- Motor not starting or no output
- Unstable speed control
- No torque output
- Trip during acceleration or deceleration
- Encoder feedback errors
Thermal & Cooling Defects
- Overheating due to failed cooling fans
- Defective temperature sensors
- Poor heatsink performance
Mechanical & Environmental Damage
- Burnt or loose connectors
- PCB track damage
- Corrosion or moisture ingress
- Oil, dust or contamination damage
- Cracked solder joints
Error Codes & Drive Trips
- Overcurrent faults (OC)
- Ground fault / earth leakage error
- Short-circuit fault
- Motor or drive overload
- Overvoltage or undervoltage error
- Undervoltage trip when starting or stopping
- Phase loss / imbalance
- Synchronization issues with multiple drives
Other
- Display defect
- Control keys or keypad not working
- Parameters no longer readable or lost
- Brake resistor problems (brake chopper defect)
- Internal relays/contactors defective
- EMI/RFI interference due to defective filters
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