carbon
Member
- Messages
- 2,811
- Location
- S. Glos. U.K
The two very bottom screws are earth ,they screw into the chassis of the VFD . Not very well place to be honest.
These screws are not the earth connection for the vfd, the earth connection will be one of the other in the row of connectors either 3 or 6 depending on which one connects to earth as well as either the wiring diagram or legend