Allen-Bradley 1336 IMPACT - Page 47

2–12 Troubleshooting and Error Codes
Publication 1336 IMPACT-6.2 – March 1998
Fault Code and
Text
Suggested ActionDescription
Fault
Type
LED Information
12034
Bus Drop
CP, Flashing red Soft
The bus voltage dropped 150V below the
bus tracker voltage.
Monitor the incoming AC line for low
voltage or line power interruption.
Refer to the Understanding Precharge and
Ridethrough Faults section in the
troubleshooting chapter of the user
manual for more information.
If you do not want this condition to be
reported as a fault, change bit 2 in Fault
Select 1 (parameter 20) to 0.
12035
Bus Undervlt
CP, Flashing red Soft
The DC bus voltage fell below the trip
value (388V DC at 460V AC input).
Monitor the incoming AC line for low
voltage or line power interruption.
Refer to the Understanding Precharge and
Ridethrough Faults section in the
troubleshooting chapter of the user
manual for more information.
If you do not want this condition to be
reported as a fault, change bit 3 in Fault
Select 1 (parameter 20) to 0 or decrease
the bus undervoltage setpoint.
12036
Bus Cycle>5
CP, Flashing red Soft
At least 5 ridethrough cycles have
occurred within a 20 second period. This
indicates a converter problem or a problem
with the incoming power.
Monitor the incoming AC line for low
voltage or line power interruption.
Refer to the Understanding Precharge and
Ridethrough Faults section in the
troubleshooting chapter of the user
manual for more information.
If you do not want this condition to be
reported as a fault, change bit 4 in Fault
Select 1 (parameter 20) to 0.
12037
Open Circuit
CP, Flashing red Soft
The fast flux up current is less than 50% of
commanded.
Make sure the motor is properly
connected.
Refer to the Understanding Precharge and
Ridethrough Faults section in the
troubleshooting chapter of the user
manual for more information.
If you do not want this condition to be
reported as a fault, change bit 5 in Fault
Select 1 (parameter 20) to 0.
12064
RidethruTime
CP, Solid green Warning
There was a drop of 150V and power did
not return within 2 seconds.
Check the incoming power and fuses.
Refer to the Understanding Precharge and
Ridethrough Faults section in the
troubleshooting chapter of the user
manual for more information.
If you do not want this condition to be
reported as a warning, change bit 0 in
Warning Select 1 (parameter 21) to 0.
12065
Prechrg Time
CP, Solid green Warning
The precharge function could not complete
within 30 seconds.
Refer to the Understanding Precharge and
Ridethrough Faults section in the
troubleshooting chapter of the user
manual for more information.
If you do not want this condition to be
reported as a warning, change bit 1 in
Warning Select 1 (parameter 21) to 0.
AB Spares