Vertiv Liebert APM, User Manual

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Chapter 1 Installation Of UPS Rack System 16
J5
B
F
P
_
C
B
F
P
_
S
B
F
P
_
O
Fig. 1-5
: Connections of output dry relay contacts
Position Name Meaning
J5.2 BFP_O Bypass backfeed protection - relay normally open.Closed when bypass SCR is shorted.
J5.3 BFP_S Bypass backfeed protection - common
J5.4 BFP_C Bypass backfeed protection - relay normally closed.Opened when bypass SCR is shorted.
Tab. 1-5: Relay dry contact output port
1.7.3 External Battery Circuit Breaker Interface (J6)
12V
O
L
G
N
D
F
B
D
R
V
J6
12V
12V
Fig. 1-6: External BCB interface
Position Name Descriptions
J6.1 DRV BCB drive signal (Hig = BCB can be closed)
J6.2 FB BCB contact status (Closed = BCB is closed)
J6.3 GND Power supply GND
J6.4 OL BCB online-Input (normally open): This pin is closed to gnd when BCB interface signal is connected
Tab. 1-6: External battery circuit breaker interface
电池开关
BCB
J10
O
L
G
N
D
F
B
D
R
V
Aux-N.O.
Aux-N.O.
J6
Aux_N.O.
Aux_N.O.
BCB
Fig. 1-7: Connection of BCB interface
1.7.4 Other input Interface (J7)
Input dry contacts for environment detection and battery ground fault detection are provided by interface J7