Allen-Bradley 20F11GD034AA0NNNNN
Allen-Bradley repareren bij Cirele is:
• Duidelijke tarieven zonder onverwachte kosten
• Betaling pas na geslaagde reparatie
• Proactieve vervanging van tijdgevoelige onderdelen
• Gedetailleerd test- en reparatierapport wordt verstrekt
• 2 jaar garantie op alle reparaties
• Langdurige ondersteuning tot einde levensduur.
The Allen-Bradley 20F11GD034AA0NNNNN is a PowerFlex 753 AC variable frequency drive manufactured by Allen-Bradley, a brand of Rockwell Automation. This unit belongs to the PowerFlex 750-Series product family, designed for general-purpose industrial motor control applications requiring flexible configuration and reliable performance. The PowerFlex 753 is positioned as a mid-range drive offering a balance of functionality and cost-effectiveness within the 750-Series lineup.
The 20F11GD034AA0NNNNN is configured for 480V AC three-phase input and delivers a continuous output current of 34 A, corresponding to a power rating of approximately 20 HP (15 kW) at 480V. The drive supports a wide range of optional communication adapters including EtherNet/IP, DeviceNet, ControlNet, PROFIBUS, and Modbus, enabling seamless integration into various automation architectures. It features an embedded I/O structure with analog and digital inputs and outputs, and supports multiple control modes including V/Hz, sensorless vector, and closed-loop vector control with encoder feedback via optional modules. The drive includes built-in safety architecture compatible with Safe Torque Off (STO) functionality when equipped with the appropriate safety option module, and supports DriveGuard safety options for SIL 2 / PLd compliance.
The PowerFlex 753 drive is widely deployed in industries such as material handling, packaging, water and wastewater treatment, mining, and HVAC systems. It is commonly used to control pumps, fans, conveyors, compressors, and mixers where variable speed operation improves process efficiency and reduces energy consumption. The drive's modular option card architecture and broad communication protocol support make it suitable for both standalone installations and integration into larger Rockwell Automation or mixed-vendor control systems.
Technical Specifications
| Series / Product Family | PowerFlex 750-Series (PowerFlex 753) |
|---|---|
| Input Voltage | 480V AC, Three-Phase |
| Input Voltage Range | 342 – 528V AC |
| Input Frequency | 47 – 63 Hz |
| Output Current (Continuous) | 34 A |
| Power Rating | 15 kW (20 HP) at 480V |
| Output Frequency Range | 0 – 500 Hz |
| Control Type | V/Hz, Sensorless Vector, Closed-Loop Vector |
| Communication Interface | Optional adapter cards: EtherNet/IP, DeviceNet, ControlNet, PROFIBUS DP, Modbus RTU |
| Feedback Interface | Incremental encoder via optional feedback module |
| Safety Features | Safe Torque Off (STO) via optional DriveGuard module, SIL 2 / PLd capable |
| Operating Temperature | 0 – 50 °C (with derating above 40 °C) |
| Storage Temperature | -40 – 70 °C |
| Relative Humidity | 5 – 95% non-condensing |
| IP / Protection Rating | IP20 (open type enclosure) |
| Mounting | Panel mount, bookshelf or flange mount configurations available |
| Certifications | UL, cUL, CE, RCM, RoHS |
Common Fault Codes
- Fault Code 12
- HW OverCurrent – The drive output current has exceeded the hardware overcurrent trip threshold.
Check for short circuit or ground fault on the motor cables. Verify motor winding resistance. Inspect output wiring for insulation damage. Reduce acceleration rate or check for mechanical overload. - Fault Code 13
- Ground Fault – A ground fault has been detected on the drive output.
Disconnect motor cables and test insulation resistance to ground. Inspect cable routing for damage. Verify motor insulation integrity with a megohmmeter. - Fault Code 3
- Power Loss – DC bus voltage dropped below the minimum threshold during operation.
Check incoming AC supply voltage for sags or interruptions. Verify input fusing and contactor operation. Inspect input power connections for loose terminals. - Fault Code 4
- UnderVoltage – DC bus voltage is below the minimum operating level.
Measure incoming line voltage and verify it is within the specified range (342–528V AC). Check for phase loss or voltage imbalance on the supply. - Fault Code 5
- OverVoltage – DC bus voltage has exceeded the maximum allowable level.
Check for regenerative energy from the load. Increase deceleration time or install a dynamic braking resistor. Verify incoming supply voltage is not above specification. - Fault Code 7
- Motor Overload – The drive's electronic overload protection has tripped due to sustained overcurrent condition.
Verify motor FLA rating matches drive parameter settings. Check for mechanical overload or binding in the driven equipment. Allow motor to cool before restarting. - Fault Code 33
- Auto Restart Tries – The drive has exceeded the maximum number of automatic restart attempts.
Identify and resolve the underlying fault that caused repeated restarts. Review fault queue history. Manually clear the fault after correcting the root cause. - Fault Code 81
- Option Card Fault – A communication or option card installed in the drive has reported a fault or is not responding.
Reseat the option card in its slot. Verify card compatibility with the drive firmware version. Replace the option card if fault persists after reseating.
Frequently Asked Questions
What is the continuous output current rating of the 20F11GD034AA0NNNNN?
The 20F11GD034AA0NNNNN is rated for 34 A continuous output current, corresponding to approximately 15 kW (20 HP) at 480V AC three-phase.
What communication protocols does the PowerFlex 753 support?
The PowerFlex 753 supports communication via optional plug-in adapter cards, including EtherNet/IP, DeviceNet, ControlNet, PROFIBUS DP, and Modbus RTU. The base drive does not include an embedded network port; a communication adapter must be installed in one of the option slots.
Does this drive support Safe Torque Off (STO) safety functionality?
Yes, the PowerFlex 753 supports Safe Torque Off (STO) when equipped with an optional DriveGuard safety module. This configuration can achieve SIL 2 / PLd safety ratings in accordance with IEC 62061 and ISO 13849-1.
Can the PowerFlex 753 be used with an encoder for closed-loop vector control?
Yes, closed-loop vector control with encoder feedback is supported via an optional feedback module installed in the drive's option slot. This allows precise speed and torque regulation for demanding applications.
What input voltage range is acceptable for the 20F11GD034AA0NNNNN?
The drive is designed for 480V AC three-phase nominal input and accepts a voltage range of 342 to 528V AC, with an input frequency range of 47 to 63 Hz.
Troubleshooting
Drive trips on Fault Code 12 (HW OverCurrent) immediately upon start command
Disconnect the motor from the drive output terminals and attempt to run the drive unloaded. If the fault clears, the issue is in the motor or output wiring. If the fault persists with no motor connected, the drive's output power stage may be damaged.
Test motor winding resistance and insulation to ground with a megohmmeter. Inspect output cables for damage or phase-to-phase shorts. If the drive faults without a motor connected, the IGBT output stage likely requires replacement or professional repair.
Drive powers up but does not respond to start command
Check the drive's I/O wiring and verify that the enable input (if used) is active. Review parameter settings for control source (Parameter 545 Speed Reference and Parameter 190 Direction Mask). Confirm the HIM or control source is correctly configured.
Verify that digital input wiring matches the configured control mode. Ensure the drive is not in a faulted or inhibited state. Reset parameters to factory defaults if configuration is suspected to be corrupted, then recommission the drive.
Intermittent communication loss between the drive and the PLC over EtherNet/IP
Check the EtherNet/IP adapter card seating in the option slot. Verify network cable integrity and switch port configuration. Monitor the drive's communication fault log and check for Fault Code 81 (Option Card Fault).
Reseat the EtherNet/IP adapter card. Replace the Ethernet cable if damaged. Verify IP address configuration and subnet settings on the adapter. Update adapter firmware if a version mismatch with the controller is identified.
Drive displays OverVoltage fault (Fault Code 5) during deceleration
The motor is regenerating energy back into the DC bus faster than it can be dissipated. Check the programmed deceleration time and the load inertia. Measure DC bus voltage during deceleration to confirm overvoltage condition.
Increase the deceleration time parameter to reduce regenerative energy. If fast deceleration is required, install a dynamic braking resistor and enable the braking chopper function in the drive parameters.
Drive runs but motor output speed is unstable or oscillating
In sensorless vector or closed-loop vector mode, verify that motor nameplate data entered in the drive parameters (voltage, current, frequency, RPM, power) is accurate. Check encoder wiring and signal integrity if closed-loop mode is active.
Re-enter correct motor nameplate data and perform an autotune routine to allow the drive to characterize the motor. In closed-loop mode, inspect encoder cable shielding and grounding. Adjust speed regulator gains (bandwidth parameter) if oscillation persists after autotune.
| Condition | Repair, Used, Refurbished, New in box (sealed) |
|---|
Common defects
Common defects on a Allen-Bradley 20F11GD034AA0NNNNN 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
Related products
-
Lenze Drive E84ABBNE3714SN0
€ 146,00Lenze Drive repair at Cirele is:
• Clear pricing with no surprises
• Payment only after successful repair
• Proactive replacement of time-sensitive components
• Detailed testing and repair report provided
• 2-year warranty on all repairs
• Long-term support until end of life -
Lenze Drive EPM-T221
€ 132,00Lenze Drive repair at Cirele is:
• Clear pricing with no surprises
• Payment only after successful repair
• Proactive replacement of time-sensitive components
• Detailed testing and repair report provided
• 2-year warranty on all repairs
• Long-term support until end of life -
Lenze Drive E84ABSBN0000VN0
Lenze Drive repair at Cirele is:
• Clear pricing with no surprises
• Payment only after successful repair
• Proactive replacement of time-sensitive components
• Detailed testing and repair report provided
• 2-year warranty on all repairs
• Long-term support until end of life