7 Using the I/O signal functions
7-1 I/O signal functions
S8BA-24D24D
□□□
LF
88
7-1-3 I/O signal port (RJ45 connector)
Outlook of the connector
Pin
number
Item
1
Backup signal output (BU)
2
Remote ON/OFF input (-)
3
Trouble signal output (TR)
4
COMMON (COM)
5
Battery LOW signal output (BL)
6
Backup stop signal input (BS)
7
Battery Replacement Signal output (WB)
8
Remote ON/OFF input (+)
7-1-4 Contact signal ratings
Signal
Description
Signal output (BL, TR, BU, WB)
▪
Photo coupler ratings
▪
Applicable voltage: DC50V or less
▪
Maximum current: 360mA
Remote ON/OFF input
▪
Voltage between terminals: DC5V
▪
Current when closed: 10mA max.
UPS Stop Signal input (BS)
▪
Input voltage: HIGH(ON) DC 8 to 24 V
LOW(OFF) DC0.5V or less
▪
Input current: 1.7 to 5.1mA
7-1-5 Contact signal circuit
Signal output (BL, TR, BU, WB)
Remote ON/OFF input
UPS Stop Signal input (BS)
BL
TR
BU
WB
BS
COM
4.7kΩ
5V
680Ω
Remote ON/OFF (+)
Remote ON/OFF (-)