ACS2000 User manual 2UEA001270 Rev. F 10-5 (32)
Chapter 10 - Troubleshooting and maintenance
• The message 2. +Fault PPCS Communication occurred 2 min 22
seconds later than the first fault due to another fault in the drive.
• The message 1. +Fault AMC: Fault Class 2 informs about the
pending fault class.
For further information on alarms and faults, see:
• Appendix M - Signal and parameter table, located on the CD
• Appendix N - Troubleshooting guide, located on the CD
10.3.3 Standard troubleshooting procedure
Recommended procedure if a malfunction shuts down the drive:
1 Do not switch off the auxiliary voltage or try to reset a fault message
before all essential information at the time of the occurrence of the
fault condition has been saved.
2 Call up the Fault History Display on the CDP control panel.
See Chapter 9 - CDP control panel if further information is required.
Do not clear the fault buffer of the drive now!
3 Identify the fault and make a log book entry.
Note the fault message displayed on the CDP control panel and look
up the fault message in Appendix N - Troubleshooting guide, located
on the CD, for further information.
4 Save the content of the data log when a PC is available that has the
DriveWindow tool installed.
The data log provides useful information (e.g. waveforms of voltage,
current, torque, etc.) for efficient troubleshooting.
5 Try to rectify the fault, following the instructions in Appendix N -
Troubleshooting guide, located on the CD.
6 Contact ABB service if a fault cannot be rectified.
When contacting ABB, have the following data available about the
fault occurrence:
• Operating, ambient and load conditions
• Unusual events
After the fault has been rectified, start the drive as described in Chapter 8
- Local operation.
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