Specifications

Publication 1747-SG001E-EN-E - February 2013
Select SLC 500 I/O Modules 13
Voltage drop, on-state
output, max.
— 1.2V @ 1.0 A 1.2V @ 0.5 A 1.2V @ 0.5 A 1.0 V @ 1.0 A
Load current, min. 0.15 mA 1 mA 1 mA 1 mA 1 mA
Leakage current, off-state
output,max
0.1 mA
1 mA
(3)
1 mA
(3)
1 mA
(3)
1 mA
(3)
Signal On Delay, max
(resistive load)
0.25 ms 0.1 ms 0.1 ms 0.1 ms
0.1 ms
(6)
Signal Off Delay, max
(resistive load)
0.50 ms 1.0 ms 1.0 ms 1.0 ms 1.0 ms
Continuous current per
module
N/A 8.0 A @ 30 °C (86 °F)
4.0 A @ 60 °C (140 °F)
8.0 A @ 0…60 °C
(32…140 °F)
6.4 A @ 0…60 °C
(32…140 °F)
Continuous current per
point
24 mA 1.0 A @ 30 °C (86 °F)
0.5 A @ 60 °C (140 °F)
0.50 A @30 °C (86 °F)
0.25 A @60 °C (140 °F)
(4)
0.50 A @ 30 °C
0.25 A @ 60 °C
1.5 A @ 30 °C (86 °F)
1.0 A @ 60 °C (140 °F)
(7)
Surge current per point
for 10 ms
(1)
N/A 3.0 A 1.0 A @ 30 °C (86 °F)
1.0 A @ 60 °C (140 °F)
4.0 A
(8)
(1) Repeatability is once every 1 s @ 30 °C (86 °F). Repeatability is once every 2 s @ 60 °C (140 °F).
(2) 50 mV peak to peak ripple, max.
(3) To limit the effects of leakage current through solid-state outputs, a loading resistor can be connected in parallel with your load. For transistor outputs, 24V DC operation,
use a 5.6 K Ω, 1/2 W resistor.
(4) Recommended surge suppression: For transistor outputs, when switching 24V DC inductive loads, use a 1N4004 diode reverse-wired across the load. Refer to the SLC 500
Modular Hardware Style User Manual, publication 1747-UM011
, for more information on surge suppression.
(5) The 1746-OVP16 module features a fused common and blown fuse LED indicator.
(6) Fast turn-off modules provide fast OFF delay for inductive loads. Fast turn-off delay for inductive loads is accomplished with surge suppressors on this module. A
suppressor at the load is not needed unless another contact is connected in series. If this is the case, a 1N4004 diode should be reverse wired across the load. This defeats
the fast turn-off feature. Comparative OFF delay times for 1746-OB8, 1746-OV8 and fast turn-off modules, when switching Bulletin 100-B110 (24 W sealed) contactor, are:
1746-OB8 and 1746-OV8 modules OFF delay = 152 ms; fast turnoff modules OFF delay = 47 ms.
(7) Fast off-delay for inductive loads is accomplished with surge suppressors on the 1746-IB6EI and 1746-OBP8 series B and later, 1746-OB16E series B and later, 1746-OBP16
and 1746-OVP16 modules. A suppressor at the load is not needed unless another contact is connected in series. If this is the case, a 1N4004 diode should be reverse-wired
across the load. This defeats the fast turn-off feature.
(8) Surge current = 32 A per module for 10 ms.
Sinking DC Output Modules
Specifications 1746-OG16 1746-OV8 1746-OV16 1746-OV32
1746-OVP16
(5)
Sourcing DC Output Modules
Specifications 1746-OB6EI 1746-OB8 1746-OB16 1746-OB16E 1746-OB32 1746-OB32E
1746-OBP8
(4)
1746-OBP16
Number of outputs 6 Electronically
Protected
81616
Electronically
Protected
32 32
Electronically
Protected
8
16
(5)
Points per
common
Individually
isolated
8161616164 16
Voltage category 24V DC
Operating voltage
range
10 …30V DC 10…50V DC 10…30V DC 5…50V DC 10…30V DC 20.4…26.4V DC
Backplane current
(mA) @ 5V
46 mA 135 mA 280 mA 135 mA 190 mA 135 mA 250 mA
Backplane current
(mA) @ 24V
0 mA 0 mA 0 mA 0 mA 0 mA 0 mA 0 mA 0 mA