Overvoltage Due to Generation Mode

What does Overvolt G mean?

This fault indicates an overvoltage condition when the VSD is operating in generation mode, meaning the motor is acting as a generator and feeding energy back to the drive. This typically happens with overhauling loads or when the motor is driven faster than its commanded speed by external forces. This condition can lead to damage to the drive's power components if the regenerative energy is not properly handled.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Ensure a suitable dynamic braking resistor system is correctly installed, connected, and operational for applications with regenerative loads.

2. 4

   Adjust control parameters to better manage regenerative energy, such as increasing deceleration times or enabling braking functions.