Allen Bradley 1771-OMD PLC-5 Digital AC Output Module | 16-Point

Product Description

The Allen Bradley 1771-OMD is a 16-point digital AC output module designed for PLC-5 systems. It delivers reliable switching performance for industrial automation applications, supporting high-voltage AC loads with robust surge handling and compliance with UL and CSA standards.

Technical Specifications

• Manufacturer: Allen Bradley (Rockwell Automation)

• Product Line: PLC-5

• Part Number: 1771-OMD

• Outputs per Module: 16 channels

• Compatible Chassis: 1771-A1B through A4B or later I/O chassis, 1771-AM1, 1771-AM2 I/O chassis

• Output Voltage Range: 184–250 V AC @ 47–63 Hz

• Output Current Rating: 2 A per output, maximum 8 A per module

• Surge Current Capacity:

• 25 A per output for 100 ms, repeatable every 1 second

• 25 A per module for 100 ms, repeatable every 1 second

• Minimum Load Current: 10 mA per output @ 220 V AC, 60 Hz

• On-State Voltage Drop: ≤ 1.5 V at 2 A

• Off-State Leakage Current: ≤ 4 mA per output @ 220 V AC

• Signal Delay:

• Off to On: 1.0 ms

• On to Off: 8.3–9.1 ms @ 60 Hz

• Power Dissipation: 17.3 W (max), 3.7 W (min)

• Thermal Dissipation: 59.0 BTU/hr (max), 12.6 BTU/hr (min)

• Backplane Current Draw: 700 mA @ 5 V DC ±5%

• Isolation Voltage: 50 V continuous, meets UL 508 and CSA C22.2 No.142 standards

Application Scenarios

• Industrial Control Systems: Provides reliable AC output switching for PLC-5 automation setups

• High-Voltage Load Management: Suitable for controlling motors, relays, and other AC-driven equipment

• Legacy PLC-5 Integration: Designed for compatibility with Allen Bradley PLC-5 chassis and modules

FAQ

Q: How many outputs does the 1771-OMD support?  A: It supports 16 AC output channels.

Q: What is the maximum current per output?  A: Each output can handle up to 2 A, with a total of 8 A per module.