Overview
The Reliance Electric 61C22B is a rail-mounted digital local I/O head designed for Reliance Electric AutoMax and AutoMate distributed control systems. This module functions as a power distribution and I/O interface unit that connects local digital I/O modules to the main control network. With built-in power supply capability and comprehensive fault detection, the 61C22B supports scalable I/O expansion while maintaining system reliability.
Key Features
- Rail-mounted design for AutoMax/AutoMate DCS platforms
- Integrated power supply supports up to four digital I/O rails
- 120VAC input with 250VAC MDQ 4-amp replaceable fuse protection
- LED status indicators for POWER, COM, and four RAIL FAULT channels
- Supports customizable digital I/O configuration per system requirements
- Enables digital I/O expansion from 64 to 256 channels per port
Technical Specifications
- Input Power: 120 VAC, +10%, -15%, 50/60 Hz
- Fuse Protection: 250VAC MDQ 4-amp replaceable cartridge
- Rail Configuration: Supports up to 4 digital I/O rails
- I/O Expansion: 64 to 256 digital channels per port
- Status Indicators: POWER, COM, RAIL FAULT 0-3 (LED)
- Series: AutoMate Local I/O Head
- Circuit Number: 803456-37RE
- Manual Reference: J-3671-2
Typical Applications
- Distributed process control in manufacturing and batch operations
- Remote I/O networking for multi-zone automation systems
- Digital signal distribution in pumping, compressor, and industrial drive applications
- System upgrades and expansions on existing Reliance Electric DCS installations
- Critical monitoring and fault detection in multi-rail industrial environments
Compatibility & Replacements
Compatible With
- Reliance Electric AutoMax DCS platforms
- Reliance Electric AutoMate control systems
- Rail-mounted digital I/O modules
- Reliance Electric distributed control networks
Replaces / Drop-In Replacement For
- Reliance Electric 61C22A (earlier revision)
- Verify compatibility with your system integrator before ordering to ensure firmware and circuit compatibility.
Works With
- Reliance Electric AutoMax programming software
- Reliance Electric AutoMate programming environments
- Digital I/O modules on rail-mounted architecture
- Reliance-compatible system monitoring and diagnostics tools
