Allen-Bradley POINT I/O 4 Point Digital Output Module 1734-OB4
You can use these Series C POINT I/O™ Output modules with DeviceNet® and PROFIBUS adapters. If you are using Studio 5000 Logix Designer® application version 20 or
higher, you can also use the Series C modules with ControlNet® and EtherNet/IP™ adapters.
Use Figure 1 to identify the external features of the module.
Specifications
POINT I/O Output Module – 1734-OB2, 1734-OB4, 1734-OB4K, 1734-OB8, 1734-OB8K
| Attribute |
1734-OB2 |
1734-OB4, 1734-OB4K |
1734-OB8, 1734-OB8K |
| Outputs per module, non-isolated, sourcing |
2 (1 group of 2) |
4 (1 group of 4) |
8 (1 group of 8) |
| On-state voltage range, min |
10V DC |
| On-state voltage range, nom |
24V DC |
| On-state voltage range, max |
28.8V DC |
| On-state voltage drop, max |
0.2V DC |
| On-state current, min per channel |
1.0 mA |
| Off-state leakage, max |
0.5 mA @ 28.8V DC |
Output signal delay, max(1)
Off to On
On to Off |
0.1 ms
0.1 ms |
| Output current rating |
1.0 A per output, 2.0 A max per module |
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 |
0 – Output 0
1 – Output 1
2 – Output 0
3 – Output 1
4 – Common
5 – Common
6 – Supply
7 – Supply |
0 – Output 0
1 – Output 1
2 – Output 2
3 – Output 3
4 – Common
5 – Common
6 – Common
7 – Common |
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 to On delay is the time from a valid output "On" signal to output energization. On to Off delay is the time from a valid output "Off" signal to output de-energization.
General Specifications
| Attribute |
1734-OB2 |
1734-OB4, 1734-OB4K |
1734-OB8, 1734-OB8K |
| Terminal base screw torque |
0.8 N•m (7 lb•in) |
|
|
| Indicators |
2 yellow – Output status
2 green/red – Module/network status |
4 yellow – Output status
2 green/red – Module/network status |
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 |
0.8 W |
1.2 W |
2.0 W |
| Thermal dissipation, max @ 28.8V DC |
2.7 BTU/hr |
4.1 BTU/hr |
6.8 BTU/hr |
| Isolation voltage |
50V (continuous), reinforced insulation type
Type tested @ 2500V DC for 60 s, field-side to system |
|
|
| External DC power supply voltage, nom |
24V DC |
|
|
| External DC power voltage range |
10…28.8V DC |
|
|
| External DC power supply current |
8 mA |
16 mA |
32 mA |
| Dimensions (H x W x D), approx. |
56.0 x 12.0 x 75.5 mm (2.21 x 0.47 x 2.97 in.) |
|
|
| Wiring category(1) |
2 – on signal ports |
|
|
| Wire size |
Determined by the installed terminal block |
|
|
| Weight, approx. |
32.60 g (1.15 oz) |
33.17 g (1.17 oz) |
35.4 g (1.25 oz) |
| North American temp code |
T4A |
T4 |
| UKEX/ATEX temp code |
T4A |
| IECEx temp code |
T4A |
(1) Use this Conductor Category information for planning conductor routing as described in the appropriate System Level Installation Manual. Also see the Industrial Automation Wiring and Grounding Guidelines,
publication 1770-4.1, for more information.
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