ABB BIO-Tester Relion REX640 Quick Operation Manual page 9

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 9
Push the cable connector in place and secure it by
turning it clockwise.
Check that all the connectors' cables have been connected,
including the separate power supply connector cable for the
LHMI.
Connect the power supply cable of the BIO-Tester to the
main's wall plug connector.
Power up BIO-Tester using the mains connection.
Select the protection relay's operating voltage depending
on the power supply module used in the relay:
• 48 VDC (PSM1001)
• 110 VDC (PSM1002/PSM1003)
Keep the selected voltage selector button pressed for three
seconds.
Supply to the LHMI is always 48 VDC.