ABB BIO-Tester Relion REX640 Quick Operation Manual page 10

10 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
3. Using BIO-Tester Relion® REX640
See the BIO-Tester Relion® REX640 User Manual for more information on using BIO-Tester.
Select IED test mode. The test mode can be activated via
REX640 LHMI.
Testing binary inputs:
• Select the correct rated voltage by adjusting the
potentiometer.
• Set the input supply voltage level above the set value of
the binary input's threshold voltage.
• The supply voltage level can be adjusted between
12...200 V DC.
On the REX640 LHMI Testing and Commissioning page,
select View I/O.