Rockwell Automation 1734-OB2_OB4_OB8, Series C POINT I/O Output Module Installation Instructions - Manual (Page 18)

18 POINT I/O Output Module
Publication 1734-IN018C-EN-E - April 2013
OFF-state leakage, max 0.5 mA
Output signal delay, max (1)
OFF to ON
ON to OFF
0.1 ms
0.1 ms
Output current rating 1734-OB2 – 1.0 A per output, 2.0 A max per module
1734-OB4, 1734-OB8 – 1.0 A per output, not to exceed 3.0 A max
per module
Surge current 2 A for 10 ms, repeatable every 3 s
Field wiring terminations 1734-OB2
0 – Output 0
1 – Output 1
2 – Output 0
3 – Output 1
4 – Common
5 – Common
6 – Supply
7 – Supply
1734-OB4
0 – Output 0
1 – Output 1
2 – Output 2
3 – Output 3
4 – Common
5 – Common
6 – Common
7 – Common
1734-OB8
0 – Output 0
1 – Output 1
2 – Output 2
3 – Output 3
4 – Output 4
5 – Output 5
6 – Output 6
7 – Output 7
(1) Off–on delay is time from a valid output “On” signal to output energization. On–off delay is time from a valid output
“off” signal to output de-energization.
General Specifications
Attribute Value
Terminal base screw torque 0.8 Nm (7 lb-in.)
Indicators 1734-OB2
2 yellow – output status
2 green/red – module/network status
1734-OB4
4 yellow – output status
2 green/red – module/network status
1734-OB8
8 yellow – output status
2 green/red – module/network status
Module location 1734-TB or 1734-TBS wiring base assembly
POINTBus current, max @ 5V DC 75 mA
Power dissipation, max @ 28.8V DC 1734-OB2 – 0.8 W
1734-OB4 – 1.2 W
1734-OB8 – 2.0 W
Thermal dissipation, max @ 28.8V DC 1734-OB2 – 2.7 BTU/hr
1734-OB4 – 4.1 BTU/hr
1734-OB8 – 6.8 BTU/hr
POINT I/O Output Module – 1734-OB2, 1734-OB4, 1734-OB8
Attribute Value