General Electric IC693MDL940 Relay Output Module

The GE IC693MDL940 functions as a versatile 2 Amp relay output interface. It serves the Series 90-30 and PACSystems RX3i controller families. This module provides sixteen independent normally-open relay circuits for industrial load management. Because it operates through mechanical contacts, it easily handles diverse AC and DC voltages. Common applications include driving magnetic starters, solenoid valves, and status indicators. Consequently, this module offers a reliable bridge between logic control and field equipment.

Circuit Design and Load Capacity

The internal hardware consists of four isolated groups. Each group contains four output points sharing a single common power terminal. This configuration allows users to mix different power sources across the module groups. Each individual circuit supports a maximum switching current of 2 Amps. However, the total current for each group must not exceed 4 Amps. Since the module lacks internal fuses, engineers should install external protection to prevent circuit damage.

Operational Diagnostics and Installation

Visual diagnostics include sixteen green LED indicators located at the top of the module. These lights show the ON/OFF state of each field-side relay in real time. The module carries a red color-coded label to signify its high-voltage capability. Maintenance teams can install this unit in any standard I/O slot of a 90-30 or RX3i baseplate. Furthermore, the unit draws its operating power directly from the PLC backplane. This high-density design effectively saves cabinet space while maintaining high switching power.

Performance and Durability

GE designed the IC693MDL940 for rugged 24/7 service in industrial environments. It provides galvanic isolation between the PLC logic and the noisy field environment. Moreover, the mechanical relays offer low contact resistance for efficient energy transfer. This module remains a popular choice for legacy system maintenance and new automation projects. Therefore, it ensures long-term operational stability for critical process control loops.

Technical Specifications