Overview

The Allen-Bradley 1771-OMD is an AC Digital Output Module designed for use with the PLC-5 series of programmable logic controllers. It provides 16 output channels and is intended to be installed in a 1771 I/O chassis.

Specifications

• Outputs per Module: 16
• Module Location:
  • 1771-A1B thru A4B or later I/O chassis
  • 1771-AM1, AM2 I/O chassis
• Output Voltage Range: 184 to 250V AC @ 47 - 63Hz
• Output Current Rating:
  • 2A per output (not to exceed 8A per module)
• Surge Current (maximum):
  • 25A per output for 100ms, repeatable every 1 second
  • 25A per module for 100ms, repeatable every 1 second
• Load Current (minimum): 10mA per output @ 220V AC, 60Hz
• On-State Voltage Drop: 1.5V at 2A (max.)
• Off-State Leakage Current: 4mA per output @ 220V AC (max.)
• Signal Delay:
  • Off to On: 1.0ms
  • On to Off: 8.3-9.1ms @ 60Hz
• Power Dissipation:
  • 17.3 Watts (max.)
  • 3.7 Watts (min.)
• Thermal Dissipation:
  • 59.0 BTU/hr (max.)
  • 12.6 BTU/hr (min.)
• Backplane Current: 700mA @ 5V DC ±5%
• Isolation Voltage: Meets or exceeds UL Standard 508 and CSA Standard C22.2 No. 142.

Environmental Conditions

• Operational Temperature: 0° to 60°C (32° to 140°F)
• Storage Temperature: -40° to 85°C (-40° to 185°F)
• Relative Humidity: 5 to 95% without condensation

Conductors

• Wire Size:
  • 14 gauge (2mm²) stranded maximum
  • 3/64 inch (1.2mm) insulation maximum
• Keying:
  • Between 2 and 4
  • Between 6 and 8

Fuse

• Rating: 10A, 250V rectifier fuse (1/4 x 1-1/4 inch), Littelfuse PN 322010 3AB

Field Wiring Arm

• Standard Catalog Number: 1771-WH
• Optional Fused Catalog Number: 1771-WHF, WHFB
• Wiring Arm Screw Torque: 7-9 inch pounds

Agency Certification

• CSA certified
• CSA Class I, Division 2, Groups A, B, C, D certified
• UL listed
• CE marked for all applicable directives

Installation Instructions

• Document Number: 1771-5.26