Detection Circuit For Manual Bypass Switch; Detection Circuit For Output Breaker - Tripp Lite SU60KX Manual

2 Theory of Operation (continued)

2.19 Detection Circuit for Manual Bypass Switch

Located on NH-SYS-R board (Circuit for RS232, Output Dry Contact, Parallel Port, Connector to connect with each Power Module,
Circuit for 2 Slots)
TO Manual Bypass Breaker
Located on NH-SYS-M board (System MCU and Control Circuit)
(a) CNR13 connects to the auxiliary contact of the manual bypass switch.
(b) System MCU detects the status of the manual bypass switch via TOMBYP_I (6). Manual bypass switch will stay in the OFF position and
TOMBYO_I (6) will be high.

2.20 Detection Circuit for Output Breaker

Located on NH-SYS-R board (Circuit for RS232, Output Dry Contact, Parallel Port, Connector to connect with each Power Module, Circuit for 2
Slots)
CNR10
1
2
Located on NH-SYS-M board (System MCU and Control Circuit)
(a) CNR10 connects to the auxiliary contact of the output breaker.
(b) System MCU detects the status of the output breaker via OPCBAUX_I (72). Output breaker stays in the OFF position and OPCBAUX_I (72)
will be high.
DR15
+12VSF
TOMBYP
CNR13
TOMBYP_I
(6)
+12VSF
RR75
UR33
1
CR54 RR79
2
CR58
G4
OPCBAUX_I
(72)
RR102
UR43
1
RR107 2
CR66
CR73
1
2
G4
RM 146
#TOMBYP_I
CM 102
G1
RR74
4
3
G1
RM 151
#OPCBAUX_I
CM 108
G1
66
RR103
5VS
4
#TOMBYP_I
CR65
3
G1
5VS
#OPCBAUX_I
CR53