GE IC693MDL655H | Input Module

This input module reads 32 discrete signals from field sensors and switches. It serves the Series 90-30 PLC family for high-density applications. The unit converts 24V DC signals into logic states for your control program.

Technical specifications

Parameter	Specification
Brand	GE Intelligent Platforms
Model	GE IC693MDL655H
Product Family	Series 90-30
Category	Discrete Input Module
Number of Channels	32 (thirty-two) independent inputs
Input Voltage	24V DC nominal (20V to 30V)
Input Current per Channel	7 mA typical
Signal “0” Range	0V to 5V DC
Signal “1” Range	15V to 30V DC
Input Delay	5 ms typical
Isolation	Optical isolation (500V AC)
Power Supply	5V DC from backplane
Current Consumption	250 mA from +5V backplane
Number of Components	1 PCB, 32 optocouplers, 32 LEDs, 1 connector
Dimensions (L x W x H)	Approx. 14 cm x 11 cm x 3.5 cm
Weight	Approx. 0.36 kg
Energy Storage	None (no battery or capacitor)
Operating Temperature	0°C to 60°C
Compatible Base	IC693CHS391, IC693CHS392

Detailed Technical Analysis

This input module accepts thirty-two independent 24V DC input signals. Each channel features a dedicated LED status indicator on the front panel. This visual feedback helps you troubleshoot field wiring problems quickly. The unit optically isolates each input from the PLC backplane.

Now let us examine its electrical characteristics. This module draws only 7 mA per activated channel. A logical “1” signal requires between 15 and 30 volts DC. Conversely, any voltage below 5 volts registers as a logical “0”. This wide hysteresis makes the module highly noise-immune.

The module contains no energy storage components whatsoever. You will never replace batteries or capacitors on this device. Its 5-millisecond input delay suits most industrial switching applications. The unit draws 250 milliamps from the 5V backplane supply.

Installation and Wiring Guidelines

You mount this module into any Series 90-30 rack slot. The unit uses a 40-pin front connector for all field wiring. Each input shares a common return path through the module. Consequently, you must use a power supply with a common ground reference.

For reliable operation, connect each sensor using twisted-pair cable. This module operates perfectly between 0 and 60 degrees Celsius. Avoid mounting it next to high-power AC devices inside the cabinet. The optical isolation provides 500V AC protection between field and logic sides.

Practical Applications

Engineers use this module for high-density input applications. For example, you can monitor 32 conveyor sensors with a single module. This arrangement saves rack space and reduces wiring costs significantly. The GE IC693MDL655H also works with 24V DC proximity switches.

Summary

To conclude, this input module provides thirty-two 24V DC discrete inputs. It weighs only 0.36 kilograms and has no battery maintenance needs. Choose GE IC693MDL655H for reliable high-density signal acquisition in Series 90-30 systems.