OH3
Motor overtemperature (+150°C)
Lenze · SM29_05 Service Bulletin
What does OH3 mean?
The motor temperature, detected via resolver or incremental encoder, has exceeded +150°C. This signifies severe thermal overload due to impermissible continuous current or frequent/prolonged acceleration processes. A missing PTC/temperature contact can also prevent proper monitoring.
Additional Steps
Steps 1–2 are listed in Priority Fix.
- 3
Switch off monitoring by setting C0583 = 3.
Source: Lenze SM29_05 Service Bulletin
Open Manual (Page 327)