Error 11 - Technical Troubleshooting discussion in Forkliftaction's forums

Cat Lift Trucks (& Caterpillar) EP30K-PAC:
Error 11

I know this relates to the power circuits but does any one have anymore info?. It's on the traction side but what can I check on the motor and power modules?. The truck powers up okay and hydraulics work but when you select direction it fails to an 11 as soon as you press the throttle and drops the line contactor.

Posted 16 Jan 2013 03:35
Discussion started by simon_k
Devon, United Kingdom

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simon,
here are some possible causes for this error
- wire break in T1 or T2 IGBT
- faulty wire connection
- faulty drive board
- faulty traction current sensor CS1
- faulty traction logic card

now they do go on to say to disconnect the battery and check the armature wiring for breakage and shorting. Then check the IGBT circuits and drive board for anything abnormal. Then check the current sensor and finally if no other issues found to replace the logic board.

when you check the drive board pay attention to the diodes, they are known to burn generally because of running the truck at low battery voltages causing a high amp draw across those diodes.

good luck

Posted 16 Jan 2013 21:44
Modified 16 Jan 2013 21:45 by poster
Reply by swoop223
North Carolina, United States

You've been swooped!
swoop223@gmail.com

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