Fault code

INVT GD270 OL2 VFD overload

Diagnostic context

What OL2 means on INVT GD270

OL2 identifies VFD overload on the INVT GD270. The manufacturer troubleshooting table links this fault to rapid acceleration, restarting a rotating motor, low grid voltage, excessive load and insufficient drive power.

Operating context: Review acceleration conditions, input voltage and actual load demand, then confirm that the selected VFD and motor are appropriately sized.

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

Possible causes

  • ACC too fast.
  • The motor in rotating is restarted.
  • Grid voltage too low.
  • Load is too large.
  • Power is too small.

Recommended checks and actions

  • Increase ACC time.
  • Avoid restart after stop.
  • Check the grid voltage.
  • Select a VFD with larger power.
  • Select a proper motor.

Technical source

INVT GD270 Manual EN - Fault OL2 — page 277