Allen-Bradley ClutchBrake PLC-5 Series - Troubleshooting with Fault Codes, Operator Prompts, and Snapshot Status Bits

Appendix C
Publication 65566.5.1 - October 1996
Troubleshooting with Fault
Codes, Operator Prompts, and
Snapshot Status Bits
Whenever a PLC-5/x6 processor detects a fault, it sets a corresponding
bit Bit File 168 in the data table. We list the conditions that for which the
software is designed to detect and signal a fault.
We recommend that you program a method to display bit numbers of
detected faults. Then, you can respond quickly by looking them up
in the following table.
Faults Associated with Processor A
B168/ Suggested Message Cause of Fault Effect of Fault How to Correct the Fault
000 Processor A
Communication Timeout
Remote I/O link (channel 1B) failed. C/B power is deenergized. Check remote I/O cable to chnl 1B.
Check port configuration.
001* Crowbar Relay A
Weld Fault
Crowbar relay A
welded closed.
C/B power is deenergized
and will not turn ON.
Check crowbar relay, wiring, and
operation of input module in slot 2.
002* Crowbar Relay A
Failed to Turn ON
Crowbar relay A
failed to close.
C/B power will not turn ON. Check crowbar relay, wiring, and
operation of input module in slot 2.
003* Controller OK relay
test failed
Not wired according to
latest drawings
C/B power will not turn ON. Change wiring per SW revision 1.3.
004* Seal Relay A
Timeout Fault
Seal relay A
failed to close.
C/B power will not turn ON. Check seal relay, wiring, and
operation of input module in slot 2.
005* Seal Relay A
Weld Fault
Seal relay A
welded closed.
C/B power is deenergized
and will not turn ON.
Check seal relay, wiring, and
operation of input module in slot 2.
006* EStop Relay
Failed to Turn ON.
EStop relay
failed to close.
C/B power will not turn ON. Check EStop relay circuit and
operation of input module in slot 2.
007* EStop Relay
Weld Fault
CRMA relay
welded closed.
C/B power is deenergized
and will not turn ON.
Check EStop relay circuit and
operation of input module in slot 2.
008 No Valid Mode Modeselect failed. C/B power will not turn ON. Check mode selector switch, wiring,
and operation of input module in slot 4.
009* Processor Mode Mismatch Each processor sees
a different mode.
Press will not stroke. Check mode selector switch, wiring,
and operation of input module in slot 4.
010 Processor A Station 1
Not Active nor Bypassed
Run button failure or
improper wiring.
Prevents single or continuous
stroking.
Check run buttons and wiring.
011 Processor A Station 2
Not Active nor Bypassed
Run button failure or
improper wiring.
Prevents single or continuous
stroking.
Check run buttons and wiring.
012 Processor A Station 3
Not Active nor Bypassed
Run button failure or
improper wiring.
Prevents single or continuous
stroking.
Check run buttons and wiring.
013 Processor A Station 4
Not Active nor Bypassed
Run button failure or
improper wiring.
Prevents single or continuous
stroking.
Check run buttons and wiring.
014 Processor A Station 1
Tiedown
Run button held too long before
pressing other Run button.
Press will not start a stroke in
single or continuous mode.
Release, then press run buttons
simultaneously. Check button wiring.
015 Processor A Station 2
Tiedown
Run button held too long before
pressing other Run button.
Press will not start a stroke in
single or continuous mode.
Release, then press run buttons
simultaneously. Check button wiring.
* To clear this latched fault bit, you must enable the fault reset bit or turn the modeselect switch to OFF.
Troubleshooting
with Fault Codes