I/O modules

This combination module handles AC input signals and relay output switching for GE Series 90-30 PLCs. It reads 120V AC field devices and controls AC loads directly. Therefore, this component suits lighting, motor starters, and valve control applications.

Physical Dimensions and Weight Specifications

The GE IC693MAR590 features a compact housing for DIN rail or panel mounting. Its width occupies a single slot in the Series 90-30 rack. The unit depth measures 130 mm for backplane connectivity. Consequently, technicians can install this module in standard industrial enclosures.

Interface Types and Connection Layout

The GE IC693MAR590 provides a removable terminal block for field wiring. A 20-pin backplane connector supplies power and data from the CPU. The front panel carries LED indicators for each input and output channel. Hence, operators can monitor all signal states at a quick glance.

Component Count and Channel Configuration

This AC I/O module contains one main board with optoisolated input circuits. The board holds 8 digital inputs for 120V AC sensors. You will also find 6 relay outputs for field load control. An onboard bridge rectifier converts AC inputs to DC for logic circuits.

Energy Storage and Power Consumption

The GE IC693MAR590 draws 130 mA from the 5V backplane supply. It requires no external 24V supply for input circuits. A small capacitor filters noise on the AC input lines. This storage prevents false triggering from momentary power dips.

Input Response and Output Switching

The module scans all 8 inputs within a 12 ms cycle time. Each relay output switches in approximately 10 ms. Users can replace individual relays without removing the entire module. This design simplifies maintenance and reduces repair costs.

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