GE IC693MDL240 – 16-Channel 120VAC Input Module Review

GE IC693MDL240 Discrete Input Module Overview

The GE IC693MDL240 is a discrete input module from the Series 90-30 product line, originally manufactured by GE Fanuc and now under Emerson Automation. This module accepts 120 VAC signals and provides 16 input channels within a single group. Automation engineers use it to detect state changes from field devices such as pushbuttons, switches, and proximity sensors. The module occupies one I/O slot in a CPU, expansion, or remote baseplate.

Key Features and Technical Specifications

The IC693MDL240 operates with an input voltage range of 0 to 132 VAC and a nominal input of 120 VAC. Each channel draws 12 mA at rated voltage. The module consumes 90 mA from the 5 VDC backplane bus. Input frequency ranges from 47 to 63 Hz, supporting standard 50/60 Hz systems. The on-state voltage threshold spans 74 to 132 VAC, while off-state voltage is 0 to 20 VAC. On-state current is 6 mA, and off-state current is 2.2 mA. Isolation between field and logic sides is 1500 V RMS. Typical on response time is 30 ms, with a maximum of 45 ms. Off response time is not explicitly listed in the data, but typical operation ensures reliable detection.

LED Indicators and Installation

Sixteen green LED indicators on the front panel display the ON/OFF status for each input point. Two rows of eight LEDs (A1–A8 and B1–B8) correspond to inputs 1–8 and 9–16. The module includes a hinged door with an inner surface that details circuit wiring information. Users install the IC693MDL240 on any 5‑slot or 10‑slot I/O baseplate. There is no limit to the number of modules per system, constrained only by the host controller’s I/O capacity.

Compatibility and Configuration

The IC693MDL240 works with a variety of host controllers in the Series 90-30 family. Configuration software includes LogicMaster 90-30, VersaPro, or Proficy Machine Edition, depending on firmware version. The module requires AC power; it does not support DC inputs. Field devices must supply their own power to the inputs. This module is now discontinued but remains widely available in the secondary market.

Practical Value for Automation Systems

With 16 isolated 120 VAC inputs and robust isolation, the IC693MDL240 provides reliable state detection for industrial control applications. Its simple installation, clear LED diagnostics, and compatibility with legacy Series 90-30 systems make it a practical choice for maintenance and upgrades. Engineers appreciate the straightforward wiring and the module’s ability to handle standard AC line voltages without additional signal conditioning.