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ABB ACS880 Drive
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Sep 03, 2025 5:37 am
Cause: External temperature 2 comes when measured temperature 1 has exceeded warning limit. The A492 warning is a critical protective measure. While it doesn't immediately trip the drive, it's a clear signal that the monitored equipment is overheating and needs attention.
A492 warning on an ABB ACS880 drive indicates that the external temperature has exceeded its warning limit. This means the drive is monitoring a temperature sensor outside the drive itself—typically on the motor or in the application—and that temperature has gone past a set threshold.
Solution:
- Check the value of parameter 35.03 Measured temperature 2.
- Check the cooling of the motor (or other equipment whose temperature is being measured).
- Check the value of 35.23 Temperature 2 warning limit.