Grayhill 70GRCP32-HL 32-Channel IO Relay Interface Board

Description:

The Grayhill 70GRCP32-HL Control Board with 70G-1AC5 Modules is a 32-channel industrial I/O relay interface board designed for interfacing PLCs and control systems with field devices. It accepts Grayhill G5-style I/O modules, providing optically isolated signal conditioning between low-voltage logic circuits and industrial AC inputs. Commonly installed in PLC cabinets, machine automation systems, material handling equipment, and industrial process control applications. Maintenance teams, OEMs, and system integrators use this assembly for replacement, expansion, and maintenance of Grayhill System 50 I/O installations.

Applications:

The Grayhill 70GRCP32-HL Control Board is used in PLC-based automation systems, manufacturing equipment, conveyor controls, packaging machinery, and industrial process control. Equipped with Grayhill 70G-1AC5 AC input modules, it provides optically isolated AC signal monitoring for switches, sensors, pushbuttons, and other field devices while protecting PLC input circuits from electrical noise.

Technical Specifications:

• Manufacturer: Grayhill
• Manufacturer Part Number (MPN): 70GRCP32-HL
• Installed Module: 70G-1AC5 AC Input Module
• Product Type: 32-channel PLC I/O interface board
• Function: Interfaces PLC logic with field AC input signals
• System: Grayhill System 50
• Number of Channels: 32
• I/O Module Style: G5 plug-in modules
• Connector Type: 50-pin header with ejector levers
• Module Type: 70G-1AC5 optically isolated AC input module
• Input Voltage (70G-1AC5): 90–140 VAC nominal (120 VAC class)
• Isolation: Optical isolation between field and logic circuits
• Compatible Equipment: PLCs, industrial controllers, and automation systems supporting Grayhill System 50 racks
• Operating Environment: Industrial automation and machine control
• Application: PLC input interfacing and signal isolation
• Designed For: Reliable connection of AC field devices to industrial control systems.

Common Replacements:

• Grayhill 70GRCQ32-HL G5 I/O Rack (verify compatibility)
• Grayhill 70G-IAC5 AC Input Module
• Grayhill System 50 G5 I/O rack assemblies with compatible 70G-series modules.