Fault code

INVT GD270 OL1 Motor overload

Diagnostic context

What OL1 means on INVT GD270

OL1 is the GD270 motor-overload fault. The manufacturer table links it to low grid voltage, an incorrect motor rated-current setting, motor stall or a large transient load.

Operating context: Separate configuration problems from a real mechanical or electrical overload by checking the grid voltage and motor rated-current value before evaluating the load.

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

Possible causes

  • Grid voltage too low.
  • Motor rated current set incorrectly.
  • The motor stall occurs or the load transient is too large.

Recommended checks and actions

  • Check the grid voltage.
  • Reset the rated current of the motor.
  • Check the load and adjust the torque boost quantity.

Technical source

INVT GD270 Manual EN - Fault OL1 — page 277