OH3 / OH4 Message No. 0053 / 0054

Temperature

Motor temperature > +150 °C (via resolver / encoder)

What does it mean?

Motor temperature detection via the resolver or incremental encoder exceeds the +150 °C threshold.

Common causes

  • The motor is thermally overloaded: impermissible continuous current or frequent/too long acceleration.

How to fix it

  • Check the drive dimensioning, correct the wiring, let the module cool with good ventilation
  • if necessary, switch off the monitoring (C0583 = 3).

After troubleshooting: de-energise the device completely (disconnect the 24 V supply and discharge the DC bus) before opening the covers.

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