INVT GD270 OV1 – Overvoltage during ACC

Diagnostic context

What OV1 means on INVT GD270

OV1 identifies an overvoltage condition during acceleration. The GD270 manufacturer table associates this fault group with input-voltage conditions, regenerated energy, braking components and deceleration-time settings.

Operating context: The displayed fault code identifies the acceleration phase. Use that operating moment together with the official troubleshooting items below when tracing the voltage rise.

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

Possible causes

DEC time too short.
Input voltage exception.
Large energy feedback.
No braking components.
Energy-consumption braking is not enabled.

Recommended checks and actions

Check the input power.
Check whether load DEC time is too short or the motor starts during rotating.
Install dynamic braking components.
Check the settings of related function codes.

Technical source

INVT GD270 Manual EN - Fault OV1 — page 277