Description

Product Description

The IC694MDL250 from GE Fanuc / Emerson is a 16-channel AC discrete input module engineered for PACSystems RX3i control systems. It is designed to interface directly with 120 VAC field signals, providing reliable detection of on/off states in industrial environments.

Each input channel is electrically isolated, allowing flexible wiring across multiple AC phases or independent sources. Integrated noise suppression circuitry improves signal stability, while software-defined filtering enables precise adjustment of input response times without hardware intervention.

This module is well suited for applications where dependable AC signal monitoring and noise immunity are critical.

Technical Specifications

General Information

• Model: IC694MDL250

• Manufacturer: GE Fanuc / Emerson

• Series: PACSystems RX3i

• Product Type: Discrete Input Module

• Number of Inputs: 16 individually isolated points

• Installation: RX3i I/O slot

• Weight: 0.5 lbs

Input Characteristics

• Nominal voltage: 120 VAC

• Operating range: 0–132 VAC, 47–63 Hz

• Input current: approx. 7 mA per channel

• ON state voltage: 70–132 VAC

• OFF state voltage: 0–20 VAC

• ON state current: ≥5–6 mA

• OFF state current: ≤2.5 mA

Filtering & Signal Conditioning

• Software-configurable input filter

• Adjustable from 20 ms to 2540 ms

• No physical switches required; parameters set via CPU

Isolation

• Channel-to-backplane: 250 VAC continuous, 1500 VAC for 1 minute

• Channel-to-channel: fully isolated inputs

• Supports independent field wiring and multi-phase systems

Power Requirements

• Backplane consumption: approx. 220 mA @ 5 VDC (all inputs active)

Environmental Conditions

• Operating temperature: 0 °C to 60 °C

• Storage temperature: –40 °C to +85 °C

• Humidity: 5–95% non-condensing

Mechanical & Installation

• Compatible terminal blocks:

• IC694TBB032 / IC694TBB132

• IC694TBS032 / IC694TBS132

• Status indication:

• 16 input LEDs (one per channel)

• Terminal block presence indicator

Key Features

• 16 isolated AC input channels for flexible field wiring

• Designed for 120 VAC signal detection

• Built-in RC filtering for electrical noise reduction

• Adjustable software filtering for precise signal handling

• Individual LED indicators for diagnostics

• Terminal block detection for system integrity

Applications

Used in industrial control systems where AC signal monitoring is required, such as detecting contact closures, relay states, or field device status in manufacturing lines, utilities, and process plants.

FAQ

Q: Can inputs be connected to different AC phases?
A: Yes, each channel is individually isolated, allowing connection to separate AC sources or phases.

Q: How is input filtering configured?
A: Filtering is adjusted through the PLC program, with selectable times from 20 ms to 2540 ms.

Q: Does the module include noise suppression?
A: Yes, internal RC snubber circuits help reduce electrical noise and transient interference.

Q: What firmware is required for operation?
A: RX3i CPU firmware version 3.50 or later is required.

Specifications

• Brand: General Electric

Advantages

• High reliability in industrial environments
• Supports continuous operation
• Compatible with major PLC/DCS systems