ABB REL670 Installation And Commissioning Manual page 164

12.5.3
156
Scheme communication
8. Activate the CRL binary input.
No ECHO, CS and TRWEI outputs should appear.
9. Reset the CRL and BLOCK binary input.
10. Inject the polarizing voltage 3U0 to about 110% of the setting ( 3UO )
and adjust the phase angle between the voltage and current to 155 ° ,
the current leading the voltage.
11. Inject current (155 ° leading the voltage) in one phase to about 110%
of the setting operating current ( IN>Dir ).
12. Activate the CRL binary input.
No ECHO, CS and TRWEI should appear.
13. Abruptly reverse the current to 65 ° lagging the voltage, to operate
the forward directional element.
No ECHO, CS and TRWEI should appear.
14. Switch the current off and check that the ECHO, CS and TRWEI ap-
pears on the corresponding binary output or on the local HMI, about
200 ms after resetting the directional element.
15. Switch the polarizing voltage off and reset the CRL binary input.
Completing the test
Continue to test another function or end the test by changing the test mode setting to off.
Chapter 11
Verifying settings by secondary
injection