Rockwell Automation 1746-XXXX SLC 500 Digital I/O Modules Installation Instructions User Manual
Page 37
SLC 500 Digital I/O Modules 37
Publication 1746-IN027D-EN-P - December 2012
DC Output Modules
Load current, min
10 mA
Continuous current per point
(3)
1.0 A @ 30 °C (86 °F)
0.50 A @ 60 °C (140 °F)
0.50 A @ 30 °C (86 °F)
0.25 A @ 60 °C (140 °F)
2.0 A @ 30 °C (86 °F)
1.25 A @ 55 °C (131 °F)
1.0 A @ 60 °C (140 °F)
Continuous current per module, max
8.0 A @ 30 °C (86 °F)
4.0 A @ 60 °C (140 °F)
8.0 A @ 30 °C (86 °F)
4.0 A @ 60 °C (140 °F)
9.0 A @ 30 °C (86 °F)
6.8 A @ 55 °C (131 °F)
6.0 A @ 60 °C (140 °F)
On-state voltage drop, max
1.50V @ 1.0 A
1.50V @ 0.50 A
1.2V @ 2.0 A
Surge current per point
(4)
, max
10.0 A for 25 ms
10.0 A for 25 ms
17.0 A for 25 ms
(8)
(1)
Triac outputs turn on at any point in the AC line cycle, and turn off at AC line zero cross.
(2)
To limit the effects of leakage current through solid-state outputs, a loading resistor can be connected in parallel with your load. For 120V AC
operation, use a 15 K
Ω, 2 W resistor. For 240V AC operation, use a 15 KΩ, 5 W resistor.
(3)
Recommended surge suppression: For triac outputs when switching 120V AC inductive loads, use Harris Metal-Oxide Varistor, model number
V220MA2A. Refer to the SLC 500 Modular Hardware Style User Manual, publication
, for more information on surge suppression.
(4)
Repeatability is once every 1 s at 30 °C (86 °F). Repeatability is once every 2 s at 60 °C (140 °F).
(5)
Removable terminal block.
(6)
A fused common and blown fuse LED indicator are provided on this module. See Fuse Protection and Blown Fuse Diagnostics.
(7)
Use ID Code 2803 when configuring your system with programming software or the HHT.
(8)
Surge current = 35 A per common for 10 ms.
Specifications – 1746-OB8, 1746-OB16, and 1746-OB16E
Attribute
Value
1746-OB8
1746-OB16
(4)
1746-OB16E
(4)(5)
Voltage category
24V DC Signal Output
Number of outputs
8
16
16
Points per common
8
16
16
Voltage, operating (V DC)
10...50 (source)
10...30 (source)
Backplane current
consumption
5V DC
0.135 A
0.280 A
0.135 A
24V DC
0.0 A
Signal delay, max resistive load
On = 1 ms
Off = 1.0 ms
On = 0.1 ms
Off = 1.0 ms
On = 1.0 ms
(6)
Off = 1.0 ms
Off-state leakage, max
(1)
1 mA
Load current, min
1 mA
Specifications – 1746-OA8, 1746-OA16, and 1746-OAP12
Attribute
Value
1746-OA8
1746-OA16
(5)
1746-OAP12
(5)(6)(7)