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631.x Servo amplifier too hot


Description

The temperature of the servo amplifier (or the power supply) is measured with temperature sensors. In addition, a thermal model is mathematically calculated on the servo amplifier using the supplied motor current, which is also used for thermal protection of the servo amplifier.

Remedy

The ROC (run-out belt) or the calibrating roller drive can be enabled or disabled in the control unit. If the motor is not connected at the servo drive, the drive must be disabled in the control unit.
With ROC or calibrating roller drive with Acopos Micro drives, the thermoelement at T+ and T1 cannot be short-circuited. Error (9013) is displayed.

9000, 9001, 41001: The temperature measurement (sensor) in ACOPOS has reached too high a value.

  • Cooling of ACOPOS is inadequate.
  • Fan (if necessary, several) of ACOPOS OK?
  • Is the cabinet cooling functioning?
  • Is water flow in the coldplate (backplate) sufficient during water cooling?
  • Motor requires more current since the load has changed (overload of servo amplifier).
  • ACOPOS defective.

All others: The thermal model has computed an overtemperature and shuts down to protect the servo amplifier or the power supply.

  • Since the ambient temperature is considered when calculating the thermal model, all options such as those for error 9000 (see above) must also be considered!
  • Especially if the thermal model of the converter has triggered the error, the motor or the mechanics can also be the cause. The motor in a bad state (demagnetized) needs higher current than originally planned. A defective mechanics (e.g. damaged after crash) loads the motor even stronger (higher torque requires higher current consumption).

All machine errors

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