Overview

The 1771-OBD/C is a Relay Output module that interfaces with a PLC system to send output signals to various external devices such as motors, solenoids, and valves. It provides multiple relay contacts for on/off control of field devices, allowing the PLC system to act as the brain in the automation process, triggering physical actions in the field.

Specifications

• Number of Outputs: 16 discrete outputs, relay type.
• Output Type: Normally open (NO) contacts, and the outputs are typically used for controlling electrical devices like motors, lights, or solenoids.
• Relay Type: Form C (SPDT) relays.
• Output Voltage Range: 24 VDC (nominal).
• Output Current Rating: 2 A per point (maximum) at 24 VDC.
• Max Switching Capacity:
  • Resistive Load: 2 A at 24 VDC.
  • Inductive Load: 1 A at 24 VDC.
• Response Time:
  • On/Off: Less than 10 ms.
• Isolation: Optically isolated between input and output circuits.
• Operating Temperature Range: 0°C to 60°C (32°F to 140°F).
• Storage Temperature Range: -40°C to 85°C (-40°F to 185°F).
• Relative Humidity: 5% to 95% (non-condensing).
• Mounting: The module mounts in the 1771 I/O chassis, compatible with PLC-5 systems.
• Power Consumption: Typically around 3 W per module.
• Status Indicators: LED indicators show the status of each output (On/Off).