Ground Leakage Current Detected Fault

What does GrdF mean?

Excessive current leakage to ground has been detected, indicating a potential insulation breakdown. This is a critical safety issue that can result in electric shock, equipment damage, or fire.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Verify the settings of 'Grdd' (Ground fault detection threshold) and 'Grdt' (Ground fault time delay) parameters in the 'PrO' menu (page 57) are appropriate for the system.