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OH3
Motor overtemperature (+150°C)
Lenze · 9300 Series
¿Qué significa OH3 ?
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.
Causas comunes
- Motor temperature sensor reading exceeds +150°C, indicating severe overheating.
- Motor winding insulation is at risk of damage due to extreme temperature.
- Sustained operation under very high load conditions or stalled state.
- Failure of motor cooling system (fan, airflow).
Pasos de reparación & Lista de verificación
Haga clic en los pasos para seguir su progreso.
- 1
Check drive dimensioning to ensure the motor is not continuously overloaded.
- 2
Correct wiring if no PTC/temperature contact is connected to enable proper temperature sensing.
- 3
Switch off monitoring by setting C0583 = 3.
Datos técnicos verificados. Última actualización: March 2026
Fallas relacionadas
Fuente: Lenze 9300 Series