Product Overview

The GE Fanuc IC693MDL930 serves as a high-versatility discrete output interface for the Series 90-30 PLC platform. This 100% Brand New module features eight independent, normally open (Form A) mechanical relay channels. Unlike standard common-return modules, the IC693MDL930 provides total electrical isolation for every point. This unique architecture allows a single module to control diverse field devices operating at different voltage potentials—such as 240 VAC motors and 24 VDC pilot lights—simultaneously without cross-talk or the need for interposing relays.

Technical Specifications

Engineering Advantages

• Mixed Voltage Capability: Individual channel isolation eliminates the requirement for multiple output modules or external isolation barriers. You can wire different power sources to each of the eight points safely.

• High-Voltage DC Switching: While many standard modules struggle with high DC voltages, the IC693MDL930 handles up to 125 VDC nominal, making it ideal for utility and power substation applications.

• Superior Noise Immunity: The 1500 VAC isolation barrier prevents transient noise from the field wiring from entering the PLC backplane, protecting the CPU and sensitive logic components from damage.

• Inductive Load Resilience: The robust mechanical contacts withstand the inrush currents typical of solenoids, contactors, and small motors, reducing the frequency of hardware failure in heavy-duty cycles.

• Zero-Leakage Performance: Mechanical relays offer a true "dry contact" physical break, ensuring zero leakage current in the "OFF" state—a critical safety advantage over solid-state Triac or Transistor outputs.

FAQs

• Can the IC693MDL930 handle both AC and DC on the same module?

• Yes. Because each of the 8 channels is physically isolated from the others, you can switch an AC load on Point 1 and a DC load on Point 2 without any risk of a short circuit between the two power sources.

• Does this module require external suppression for inductive loads?

• While the contacts are robust, we strongly recommend installing external RC snubbers for AC loads or diodes for DC loads to extend the mechanical life of the relays when switching highly inductive devices like large contactors.

• What does the "Isolated" designation mean for wiring?

• It means there is no "Common" terminal. Each of the 8 outputs has two dedicated screw terminals (A and B), ensuring complete circuit independence for every field device connected.

• Is this module a direct replacement for older 90-30 relay modules?

• The IC693MDL930 is a standard Series 90-30 module. If your application currently uses a non-isolated module (like the MDL940), you will need to verify your field wiring, as the terminal assignments differ to accommodate individual channel isolation.