SERVICE MANUAL R5888B
QUADRAMHO Chapter 5
Addendum 2
Page 9 of 13
PERMISSIVE UNDERREACH SCHEME (02 or 03)
Aided trip check
Instantaneous trip with aided trip
Indication obtained for Zone 2
Fault with signal receive opto isolator energised
Signal receive delay on drop-off (90 = 110ms)
Time measured = _________ ms
Signal send check
Contact operation for Zone 1 fault
Contact operation in test option 62
Signal receive check
In test option 41 check that the SOTF LED illuminates
Block auto reclose checks (SW6 function check)
SW6 to the right CIS not energised
Block auto reclose contact (B25-26) is closed
CIS energised contact open
SW6 to the left contact open if CIS energised or not
BLOCKING SCHEME (06 or 07)
Measurement of t
D
Measured time for t
D
_________ ms
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