
2–14
Troubleshooting and Error Codes
Publication 1336 IMPACT-6.8 – November, 2002
Fault Code and
Text
Suggested Action
Description
Fault
Type
LED Status
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.
12066
Bus Drop
CP, Solid green
Warning
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 warning, change bit 2 in Warning Select 1
(parameter 21) to 0.
12067
Bus Undervlt
CP, Solid green
Warning
The DC bus voltage fell below the
minimum 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 warning, change bit 3 in Warning Select 1
(parameter 21) to 0.
12068
Bus Cycle>5
CP, Solid green
Warning
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 warning, change bit 4 in Warning Select 1
(parameter 21) to 0.
Summary of Contents for Allen-Bradley IMPACT 1336 Series
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