Shield T3 60 – 500KVA User Manual
39
B
C
B
_
D
R
V
B
C
B
_
C
O
N
T
J6
J7
B
C
B
_
O
N
L
+24V
+24V
+24V
Figure2-14
BCB Port
Table 2-9
Description of BCB port
Port
Name
Function
J6-1
BCB_DRIV
BCB contact drive, provides +24V voltage
，
20mA drive signal
J6-2
BCB_Status
BCB contact status, connect with the normally
open signal of BCB
J7-1
GND_DRY
Power ground for +24V
J7-2
BCB_Online
BCB on-line input (normally open) , BCB is on-
line when the signal is connecting with J7-1
Battery Warning Output Dry Contact Interface
The default function of J8 is the output dry contact interface, which presents the
battery warnings of low or excessive voltage, when the battery voltage is lower than
set value, an auxiliary dry contact signal will be activated via the isolation of a relay. The
interface diagram is shown in Figure2-15, and description is shown in Table 2-10.
Figure2-15
Battery warning dry contact interface diagram
Table 2-10
Battery warning dry contact interface description
Port
Name
Function
J8-1
BAT_LOW_ALARM_NC
Battery warning relay (normally closed) will
be open during warning
J8-2
BAT_LOW_ALARM_NO
Battery warning relay (normally open) will be
closed during warning
J8-3
BAT_LOW_ALARM_GND
Common terminal
General Alarm Output Dry Contact Interface
The default function of J9 is the general alarm output dry contact interface. When one
or more warnings are triggered, an auxiliary dry contact signal will be active via the
J8
B
A
T
_
L
O
W
_
N
C
B
A
T
_
L
O
W
_
N
O
G
N
D
