Fault code

INVT GD270 SPO Phase loss on output side

Diagnostic context

What SPO means on INVT GD270

SPO indicates phase loss on the U, V and W output or an asymmetrical three-phase motor condition.

Operating context: Focus the inspection on the drive output path. Check the output wiring, then verify the motor and its cables as specified by the manufacturer.

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

Possible causes

  • Phase loss occurred to U, V, W output (or the three phases of motor is asymmetrical).

Recommended checks and actions

  • Check the output wiring.
  • Check the motor and cables.

Technical source

INVT GD270 Manual EN - Fault SPO — page 278