4 bcb input port, 5 battery warning output dry contact interface, J6 j7 – OPTI-UPS MD120L User Manual
Page 20
Chapter 1 Installation
17
J5
GEN
+24V
AUX-N.O.
AUX-N.O.
发电机
Fig 1-15 Diagram of status interface and connection of generator
Table 1-5 Description of maintenance bypass switch and output switch status interface
Position
Name
Purpose
J5.1
+24V
+24V power supply
J5.2
GEN
Connection status of generator
J5.3
GND
Power ground
1.7.4 BCB Input Port
J6 and J7 are the ports of BCB. The port diagram is shown in fig 1-16, and description is shown in
table 1-6.
B
C
B
_
D
R
V
B
C
B
_
C
O
N
T
J6
J7
B
C
B
_
O
N
L
+24V
+24V
+24V
Fig 1-16 BCB Port
Table 1-6 Description of BCB port
Position
Name
Description
J6.1
BCB_DRV
BCB actuating signal, provide the actuating signal of +18V, 20mA
J6.2
BCB_CONT BCB contact status, connect with the normally open signal of BCB
J7.1
GND
Power ground
J7.2
BCB_ONL
BCB on-line
–input (normally open) , BCB is on-line when the signal
is connecting with GND
1.7.5 Battery Warning Output Dry Contact Interface
J8 is the output dry contact interface, which outputs the battery warnings of low or excessive
voltage, when the battery voltage is lower than set value, an auxiliary dry contact signal will be
provided via the isolation of a relay. The interface diagram is shown in fig 1-17, and description is
shown in table 1-7.
Generator