Product Overview

The IC694MDL250 functions as a high-voltage digital input module for the PACSystems RX3i platform, providing sixteen independent channels for monitoring 120 VAC field signals. It detects ON/OFF states from devices such as push-buttons, limit switches, and proximity sensors, and transmits this information to the RX3i CPU for processing.

Its individually isolated channel design allows safe integration of mixed AC sources or phases within a single module, improving wiring flexibility and system robustness.

Technical Specifications

Engineering Advantages

Fault Isolation via Individual Commons
Each channel has its own isolated return path, preventing electrical faults or surges on one input from affecting other channels or the control system.

Enhanced System Availability (Hot-Swap Support)
The module supports hot insertion and removal, enabling maintenance without powering down the system and reducing downtime in continuous processes.

Noise Immunity in Industrial Environments
Built-in response filtering (30 ms ON / 45 ms OFF) helps suppress electrical noise and prevents false triggering in harsh AC environments.

Flexible Rack Integration
Single-slot design allows installation in both local CPU racks and remote I/O stations using compatible RX3i communication adapters.

FAQs

Is this module supplied brand new?
Yes, the IC694MDL250 is provided as a 100% brand new, original unit built to factory specifications.

Can each channel use a different power source?
Yes, each input is individually isolated, allowing different AC phases or independent circuits to be used safely.

What types of field devices are compatible?
Typical devices include limit switches, selector switches, relay contacts, and industrial-grade 120 VAC proximity sensors.

Which terminal blocks are required?
Compatible wiring is done using IC694TBBx32 (box-style) or IC694TBSx32 (spring-style) terminal blocks.