Installation Instructions for Allen-Bradley 1734-OW2, 1734-OW4, and 1734-OW4K POINT I/O Relay Output Modules

Quick guide from the manual

This document provides essential installation, wiring, and operational instructions for the Allen-Bradley POINT I/O 2 and 4 Relay Output Modules (1734-OW2, 1734-OW4, 1734-OW4K). Users must be trained personnel and comply with all applicable codes and standards. The equipment is intended for use in Pollution Degree 2 industrial environments.

Installation

The module can be installed before or after the base installation. Ensure the mounting base is correctly keyed before installing the module.

• Mounting Base: Position the base vertically above existing units, slide down to engage interlocking side pieces, and press firmly onto the DIN rail.
• Module: Use a bladed screwdriver to rotate the keyswitch on the mounting base until the number aligns with the notch. Ensure the DIN rail locking screw is in the horizontal position. Insert the module straight down into the base until it locks.
• Removable Terminal Block (RTB): Insert the end opposite the handle into the base unit, rotate until it locks, and snap the handle into place.

Wiring

Warning: Ensure power is removed or the area is nonhazardous before connecting or disconnecting wiring to avoid electrical arcs.

• 1734-OW2: Load power is available from the internal power bus. Connect V supply to pins 6 and 7, and V common to pins 4 and 5.
• 1734-OW4 / 1734-OW4K: Load power must be provided by an external power source. These modules cannot be powered from the internal power bus.

Status Indicators

The module features status indicators for Module Status and Network Status. A solid green Module Status indicates normal operation, while flashing red indicates a recoverable fault. Refer to the status indicator table in the manual for detailed troubleshooting of network and module states.

Safety and Environment

This equipment is sensitive to electrostatic discharge (ESD). Handle with care, use a grounding wriststrap, and store in static-safe packaging. For hazardous locations (Class I, Division 2), ensure the equipment is mounted in a suitable enclosure with proper wiring methods.