Motor overtemperature (C0121)

¿Qué significa OH7 ?

The motor temperature, detected via resolver or incremental encoder, has exceeded the threshold set in C0121. This indicates thermal overload from impermissible continuous current, frequent/prolonged acceleration processes, or the C0121 value being set too low.

• Motor temperature sensor reading (C0121) indicates overtemperature, requiring immediate shutdown.
• Motor is operating beyond its rated capacity, causing excessive heat buildup.
• Faulty motor temperature sensor reporting an incorrect high value.
• Inadequate motor cooling or ventilation.

Haga clic en los pasos para seguir su progreso.

1. 1

   Check drive dimensioning to prevent continuous motor overload.

2. 2

   Correct wiring if no PTC/temperature contact is connected for reliable temperature sensing.

3. 3

   Enter a higher value in C0121 if the temperature threshold is set too low.

4. 4

   Switch off monitoring by setting C0584 = 3.