Omron CJ1W-IA111 CJ Series AC Input Unit 16-Points 100-120VAC

Omron CJ1W-IA111 Digital AC Input Module

The Omron CJ1W-IA111 is a 16-point AC input module designed for CJ1 series programmable logic controllers, providing reliable interface for 100-120VAC control signals. This module is essential for applications where field devices such as pushbuttons, limit switches, and selector switches operate on standard AC control voltage, eliminating the need for external signal conversion. The CJ1W-IA111 features 16 individual input points, each with built-in LED status indicator for easy troubleshooting and maintenance. The module accepts 100-120VAC input signals at 50/60Hz, making it suitable for North American control systems and applications using standard AC control voltages. The input circuitry includes filtering and debounce protection, ensuring reliable detection of mechanical switch contacts while rejecting electrical noise common in industrial environments. The module connects to field wiring through a standard 40-pin connector, providing secure and organized wiring connections. The CJ1W-IA111 has a fast response time of 15ms maximum, suitable for most discrete control applications where high-speed response is not critical. The input impedance and current draw are optimized to ensure reliable operation with a wide range of field devices while minimizing power consumption. The module mounts directly to the CJ1 backplane, drawing operating power from the PLC power supply unit. Applications include machine tools, assembly equipment, packaging machinery, and any application requiring interface to AC-powered control devices. The module robust design and proven reliability make it a standard choice for industrial control systems using AC control voltage.