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Allen-Bradley 160-Series AC Drives
F232120
58
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Fault Display and Troubleshooting
Information
This section provides information to guide users in
understanding drive fault conditions and general
troubleshooting procedures for Allen-Bradley drives.
Included is a listing and description of the various
drive faults with possible solutions, when applicable.
For any questions regarding fault conditions, consult
with the factory.
Each drive is equipped with a fault indicator light
which illuminates when a fault condition exists.
Fault Code Identification
A-B 160
When a fault occurs, the fault indicator light will
illuminate on the front cover of the A-B 160 drive, as
shown in Figure 36. To view the fault type, the PKM
or CopyCat Keypad must be installed. The A-B 160
fault number is located in parameter #07. Refer to
PKM or CopyCat Keypad installation and operation.
The PKM will flash the display when a fault is present
as shown below (i.e., Fault Code 22). Cross reference
the number in Table 34 for fault identification and
possible corrective action.
In addition, A-B 160 Series C fault codes are stored in
a fault buffer with the capability to store up to three
fault codes. If more than three faults are identified, the
least recent fault is deleted to make room for the
additional fault. “Fault Buffer 0” is the most recent
fault. The faults are viewed using a PKM as shown
below. Refer to PKM installation and operation.
The fault parameters are identified as follows:
“Last Fault” Parameter #7 Most Recent
“Fault Buffer 0” Parameter #17 Most Recent
(same as
Parameter #7)
“Fault Buffer 1” Parameter #18 —
“Fault Buffer 2” Parameter #19 —
Clearing Faults
When a fault occurs, the cause must be corrected
before the fault can be cleared. Resetting a fault will
not correct the cause of the fault condition. After
corrective action has been taken, simply cycling power
to the drive will clear the fault.
Figure 36
Fault
Parameter
Fault
Code
07 22
FAULT
READY
U071ME3
A
Fault Indicator
Light
FAULT INDICATOR LIGHT LOCATION