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PowerFlex 40 and 400 Drive Control Logic
33
F232120
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Allen-Bradley Drive Fault Codes
Table 20 (continued)
Allen-Bradley Drive Fault Codes
Fault
Description
Corrective Action/
Remarks
003
Power Loss Fault
DC Bus voltage remains below
85% nominal for longer than .5
seconds.
85% nominal for longer than .5
seconds.
Monitor incoming AC line for low voltage or line power
interruption.
interruption.
004
Under Voltage Fault
DC Bus voltage fell below
minimum.
minimum.
Monitor AC incoming AC line for low voltage or line
power interruption.
power interruption.
005
Over Voltage Fault
DC Bus maximum voltage
exceeded.
exceeded.
Monitor the AC line for high line voltage or transient
conditions. High voltage can result from motor
regeneration. Buck transformer may be required.
conditions. High voltage can result from motor
regeneration. Buck transformer may be required.
006
Motor Stall
Motor has stalled. Motor load is
excessive.
excessive.
Check motor wiring and connection terminals. Check wash
basket freedom of movement and excess belt tension.
basket freedom of movement and excess belt tension.
007
Motor Overload Fault
Internal electronic overload trip.
Excessive motor load exists.
Excessive motor load exists.
Check motor wiring and connection terminals. Check wash
basket freedom of movement and excess belt tension.
basket freedom of movement and excess belt tension.
008
Over Temperature Fault
Excessive heat detected by
heatsink transducer.
heatsink transducer.
Clear blocked or dirty heatsink fins. Check ambient
temperature. Check for blocked or nonoperating fan.
temperature. Check for blocked or nonoperating fan.
012
Overcurrent Fault
Overcurrent detected in
instantaneous hardware trip circuit.
instantaneous hardware trip circuit.
Check short circuit at the controller output or excessive
load conditions at motor.
load conditions at motor.
024
Unable to Decelerate
DC Bus regulation prevents
machine from decelerating
typically due to high input voltage,
motor regeneration or unstable
motor operation.
machine from decelerating
typically due to high input voltage,
motor regeneration or unstable
motor operation.
Verify DC Bus (d005) is less than 340V for 200-240V
applications or 680V for 380-480V applications. Check for
an imbalanced wash load. Check for proper speed
increment through all extract speeds.
applications or 680V for 380-480V applications. Check for
an imbalanced wash load. Check for proper speed
increment through all extract speeds.
033
Max Retries Fault
Controller failed to reset fault
within the number of retries.
within the number of retries.
Fault exists that must be corrected before further operation.
Check “Fault Buffer 1” on 1305 and 1336 for specific fault
that triggered max retries fault.
Check “Fault Buffer 1” on 1305 and 1336 for specific fault
that triggered max retries fault.
038
Phase U Fault
Phase-to-ground fault detected
between controller and motor in
Phase U.
between controller and motor in
Phase U.
Check wiring between the drive and motor. Check for
grounded phase.
grounded phase.