INVT GD270 OV2 – Overvoltage during DEC

Diagnostic context

What OV2 means on INVT GD270

OV2 identifies an overvoltage condition during deceleration. The manufacturer troubleshooting table highlights deceleration time, input voltage, regenerated energy and braking configuration as the main areas to inspect.

Operating context: Because OV2 is tied to the deceleration phase, pay particular attention to energy returned by the motor while speed is decreasing and to the configured braking arrangement.

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 OV2 — page 277