Fault code

INVT GD270 tE Motor autotuning fault

Diagnostic context

What tE means on INVT GD270

tE is the GD270 motor autotuning fault. The manufacturer associates it with VFD and motor capacity mismatch, incorrect motor parameters, abnormal autotuning results and autotuning timeout.

Operating context: The fault belongs to the motor-identification and autotuning process. Verify motor nameplate data, wiring, load condition and the applicable frequency settings before repeating autotuning.

This diagnostic context is an editorial explanation. The possible causes and recommended checks below are the verified manufacturer troubleshooting content.

Possible causes

  • Motor capacity does not match with the VFD capacity.
  • This fault may occur if the capacity difference exceeds five power classes.
  • Incorrect motor parameter settings.
  • The parameters gained from autotuning deviate sharply from the standard parameters.
  • Autotuning timeout.

Recommended checks and actions

  • Change the VFD model, or adopt V/F mode for control.
  • Set the proper motor type and nameplate parameters.
  • Empty the motor load and carry out autotuning again.
  • Check the motor wiring and parameter settings.
  • Check whether the upper limit frequency is larger than 2/3 of the rated frequency.

Technical source

INVT GD270 Manual EN - Fault tE — page 278