ALLEN BRADLEY 1756-OB16E DC Digital I/O Modules

Outputs

16 electronically fused (8 points per group)

Voltage Category

12/24V DC source

Operating Voltage Range

10…31.2V DC

Output Delay Time

Off to On: 70 µs nom/1 ms max  On to Off: 360 µs nom/1 ms max

Current Draw @ 5.1V

250 mA

Current Draw @ 24V

2 mA

Total Backplane Power

1.32 W

Power Dissipation (max)

4.1 W @ 60 °C (140 °F)

Thermal Dissipation

13.98 BTU/hr

Off-State Leakage Current

1 mA per point (max)

On-State Voltage Drop

400 mV DC @ 1 A (max)

Current per Point (max)

1 A @ 60 °C (140 °F)

Current per Module (max)

8 A @ 60 °C (140 °F)

Surge Current per Point

2 A for 10 ms per point, repeatable every 2 s @ 0 °C (32 °F) @ 24V DC

Load Current (min)

3 mA per point

Scheduled Outputs

Synchronization within 16.7 s max, reference to Coordinated System Time

States in Fault Mode

Hold last state, On or Off (default: Off)

States in Program Mode

Hold last state, On or Off (default: Off)

Isolation Voltage

250V (continuous), basic insulation type, outputs-to-backplane, and output group-to-group  No isolation between individual group outputs

Module Keying

Electronic, software configurable

Fusing

Electronically fused per group

Removable Terminal Block

1756-TBNH, 1756-TBSH

RTB Keying

User-defined mechanical

Slot Width

1

Wire Category

1

Enclosure Type

None (open-style)

Temperature Code

T4