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7
. Using the UPS monitoring software and contact signal
44
7-2-3. Contact signal I/O connector (female DSUB9P)
Pin assignment
Pin number
Item
5 4 3 2 1
9 8 7 6
Front view
Screw size: inch screw
#4-40 UNC
1
Battery LOW signal output (BL)
2
Trouble signal output (TR)
3
Backup stop signal input (BS)
4
NC
5
COMMON (COM)
6
Remote ON/OFF input (-)
7
Remote ON/OFF input (+)
8
Backup signal output (BU)
9
Deteriorated battery signal output (WB)
Note: The COMMON (COM) terminal (pin 5) is connected to the frame ground.
7-2-4. Contact Signal ratings
●
Signal output (BL, TR, BU, WB)
●
UPS Stop Signal input (BS)
Photo coupler ratings
Input voltage:
HIGH(ON)
5 to 24 VDC
Appliable voltage:
35VDC or less
LOW(OFF)
0.7 VDC or less
Maximum current:
50 mA
●
Remote ON/OFF
Voltage between terminals: 5 VDC
Current when closed:
10 mA max.
7-2-5. Contact Signal circuit inside the UPS
BL
TR
BU
WB
+5V
10kΩ
1.6kΩ
7.8kΩ
COM
Remote ON/OFF (+)
Remote ON/OFF (-)
BS