Allen-Bradley 25C-A011N104

Common Fault Codes

Fault 2

Auxiliary Input Fault – The auxiliary input interlock has been opened.
Check the wiring and status of the auxiliary input terminal. Verify that any external interlock devices connected to the auxiliary input are closed and functioning correctly.

Fault 3

Power Loss Fault – DC bus voltage dropped below the minimum threshold during operation.
Check the input power supply for voltage sags or interruptions. Verify input voltage is within the specified range and that input wiring connections are secure.

Fault 4

Undervoltage Fault – DC bus voltage is below the minimum level required for operation.
Verify that the input supply voltage is within the rated range. Check for loose input connections, blown fuses, or a failing input power supply.

Fault 5

Overvoltage Fault – DC bus voltage has exceeded the maximum allowable level.
Check for excessive regenerative energy from the load. Consider adding a dynamic braking resistor or increasing the deceleration time in the drive parameters.

Fault 6

Motor Stall Fault – The motor has stalled or the drive output current has exceeded the stall current limit for longer than the stall timeout period.
Check the mechanical load for obstructions or excessive load. Verify motor parameters are correctly programmed and that the stall current and timeout settings are appropriate.

Fault 7

Motor Overload Fault – The electronic motor overload protection has tripped due to sustained overcurrent condition.
Allow the drive and motor to cool down. Verify the motor FLA parameter is correctly set. Check for excessive load, blocked ventilation, or an undersized motor for the application.

Fault 12

Hardware Overcurrent Fault – Output current has exceeded the hardware overcurrent trip level.
Check for a short circuit on the output wiring or within the motor windings. Verify motor insulation resistance. Inspect output power connections for faults.

Fault 29

Analog Input Loss Fault – The analog input signal has been lost or dropped below the configured minimum threshold.
Check the analog input wiring for open circuits or loose connections. Verify the signal source is active and providing a signal within the configured range. Review the analog input loss action parameter settings.