Allen-Bradley 20F1ANE242JN0NNNNN

Common Fault Codes

Fault Code 12

HW OverCurrent – The drive output current has exceeded the hardware overcurrent trip level.
Check for a short circuit or ground fault on the motor cables. Verify motor insulation resistance. Inspect drive output power devices. Reduce acceleration rate or load.

Fault Code 13

Ground Fault – A current path to earth ground has been detected at the drive output.
Disconnect the motor and test cable insulation to ground. Check motor windings for ground faults. Inspect output wiring for damaged insulation.

Fault Code 3

Power Loss – DC bus voltage dropped below the minimum threshold during operation.
Check input supply voltage for sags or interruptions. Verify input fuses and connections. Inspect the incoming power supply for instability.

Fault Code 4

UnderVoltage – DC bus voltage is below the minimum allowable level.
Measure incoming AC line voltage at the drive input terminals. Check for loose connections or undersized supply conductors. Verify that the supply transformer is adequately rated.

Fault Code 5

OverVoltage – DC bus voltage has exceeded the maximum allowable level, typically caused by regenerative energy from the load.
Increase deceleration time to reduce regenerative energy. Verify that a dynamic braking resistor is installed and functioning if required. Check input line voltage for overvoltage conditions.

Fault Code 7

Motor Overload – The drive's electronic overload protection has tripped due to sustained overcurrent to the motor.
Check motor load for mechanical binding or overloading. Verify motor overload parameters are correctly configured for the connected motor nameplate data. Allow the motor to cool before restarting.

Fault Code 33

Auto Rstrt Tries – The drive has exceeded the maximum number of automatic restart attempts following a fault.
Identify and resolve the underlying fault that triggered the restart attempts. Check the fault queue for the original fault code. Manually clear the fault after correcting the root cause.

Fault Code 81

Drive Overtemp – The drive heatsink temperature has exceeded the allowable limit.
Check that cooling fans are operating correctly. Verify that ambient temperature is within specification. Inspect air intake and exhaust paths for blockage. Confirm that the drive is not derated beyond its thermal capacity.