ABB BIO-Tester Relion REX640 Quick Operation Manual page 6

6 B I O -T E S T E R R E X 6 4 0 Q U I C K O P E R AT I O N G U I D E
Connect the separate earth protection lead of BIO-Tester to
the protective earth pin of the protection relay.
Follow the connector label when connecting the connector
cables between the BIO-Tester and the protection relay.
Connect the connector cables to the protection relay.
Remove the BIO module's secondary wiring connector
terminals.