The GrFL parameter on the ATV630 drive stands for "Ground Fault Activation". It is used to configure the behavior of the SCF3 (Ground Fault Detection) function.

Parameter Options:
inH – Inhibits SCF3 detection
Yes – Activates "SCF3 detection" (default setting)
Percentage (%) – Sets a custom detection threshold based on the drive's nominal current

Default Behavior:
SCF3 is enabled by default (Yes)
The detection level is internally set to 25% of the drive's nominal current (In).

Custom Configuration:
To adjust the SCF3 detection level, set the GrFL parameter to a desired percentage.
Important: Ensure the access level is set to Expert mode before making changes.

Example:
If GrFL = 70%, the SCF3 detection threshold is set to 70% of the drive’s nominal current (In).

Released for: Schneider Electric India