Allen-Bradley 1771-WG PLC-5 Field Wiring Arm

Description

The Allen-Bradley 1771-WG is a PLC-5 field wiring arm designed for use with 1771 I/O modules. It features 21 gold-plated terminals and provides connections for up to 16 I/O points. Operating as a removable connection interface, the 1771-WG attaches to the horizontal bar at the bottom of the 1771 I/O chassis, pivoting upward to connect with the module. This pivoting mechanism allows for module installation or removal without disconnecting field wiring. Featuring a conformal coating, the arm is suitable for low-resistance applications and requires no external power source.

Features

• Terminal Capacity: Equipped with 21 terminals featuring gold-plated contacts.
• I/O Support: Accommodates up to 16 I/O channels for field wiring termination.
• Pivoting Mechanism: Mounts to the chassis horizontal bar and pivots upward, enabling module replacement without rewiring.
• Conformal Coating: Provides protection for low-resistance industrial application environments.
• Passive Operation: Operates without requiring external power input.

Applications

• PLC-5 Systems: Interfacing field devices with Allen-Bradley 1771 I/O modules.
• Industrial Automation: Low-resistance signal termination in plant wiring networks.

Technical Specifications

Installation Guidelines

• Mounting: Attach the wiring arm to the horizontal bar located at the bottom of the 1771 I/O chassis.
• Wiring Connection: Pivot the wiring arm upward to connect with the corresponding 1771 I/O module.
• Torque Rating: Tighten terminal screws to a recommended torque of 7-9 lb*in (1.0 Nm).
• Power Precaution: Disconnect system power from the 1771 I/O backplane and field wiring arm before installing or removing modules to prevent equipment damage or unexpected operation.