SERVICE MANUAL R5888C
QUADRAMHO Chapter 2
Page 27 of 74
Test LED
option Test and method indications Comments
no.
47 Self check of Zone 3 A–N A As option 45
comparators B–N B
C–N C
A–B A–B Z2
B–C Z3
C–A AIDED TRIP
Self check of Zone 6 A–B SOTF
comparator
50 Zone 1 comparators A–N A As option 40.
(Secondary inject B–N B
Zone 1 fault) C–N C
A–B Z2
B–C Z3
C–A AIDED TRIP
Breaker open opto input SOTF
(Apply rated volts to A3–A4)
Reset Zone 1 extension opto input V~ FAIL
(Apply rated volts to A1 – A2)
The “Zone 1 extension” opto
is redesignated “miniature circuit
breaker open” opto when this
version has been supplied.
51 Zone 2 comparators A–N A As option 41.
(Secondary inject B–N B
Zone 2 fault) C–N C
A–B Z2
B–C Z3
C–A AIDED TRIP
Signal receive opto input SOTF
(Apply rated volts to A9 – A10)
Channel in service opto input V~ FAIL
(Apply rated volts to A7 – A8).
The “signal receive” opto also can
be used to “reset Zone 1 extension”
for the appropriate thumbwheel
selection option.
To Next Page
Loading...