IC693MDL340 GE Fanuc Series 90-30 Digital Output Modules

Configured for discrete state execution in Series 90-30 PLC systems, the GE Fanuc IC693MDL340, also cataloged as the IC693MDL340 AC Voltage Output Module, provides direct physical/electrical execution. It switches discrete output circuits operating between 85 VAC and 132 VAC via a parallel solid-state switching matrix connected to the system backplane interface.

Hardware Specifications

Backplane Bus Communication Velocity and Density Scaling

The module communicates with the Series 90-30 CPU over a high-velocity parallel backplane interface, enabling single-cycle status logic updates. The 16 channels are divided into four isolated groups of four outputs each, optimizing high I/O density scaling within a single baseplate slot. Each individual group utilizes an independent common terminal, allowing the distribution of different phases from the same AC source across separate circuits. The firmware flash compatibility of the host controller ensures automatic registration and configuration profiling of the module without manual dip-switch assignment, maintaining rigid synchronization of the solid-state Triac switches during high-frequency process cycles.

Frequently Asked Questions

Q: Does this module support hot-swap replacement while the PLC baseplate is energized?

A: No. The Series 90-30 PLC backplane architecture does not support hot-swapping. Power to the rack assembly must be fully isolated before extracting or inserting the module to prevent electrical damage to the logic interface.

Q: What causes the output indicators to illuminate when no field load is wired to the terminal block?

A: The solid-state Triac switches feature RC snubber networks that exhibit a maximum leakage current of 3 mA at 120 VAC. Without a minimum physical load of 50 mA connected, this leakage voltage may cause high-impedance test meters or low-current field indicators to report a false active state.

Q: How does the module handle short-circuit conditions on the field wiring?

A: The internal output circuitry does not contain electronic short-circuit protection. Each isolated group must be fitted with external, fast-acting fuses rated to match the total group current limits to protect the internal components from thermal destruction.

Field Installation Guidelines

• Terminal Allocation and Power Routing: Connect the AC hot lines to the isolated common terminals (pins 1, 6, 11, and 16) through dedicated branch circuit protection. Route neutral lines directly to the return side of the field devices.
• Separation of Conduits: Maintain a physical separation of at least 10 cm between low-voltage DC communication cables and the 120 VAC field output wiring to prevent capacitive cross-talk and inductive noise coupling.
• Wire Stripping and Torque Ratings: Strip individual field conductors to a maximum length of 8 mm. Insert the conductors into the removable terminal block assembly and tighten the terminal screws to a rigid torque limit of 0.5 Nm.
• Minimum Mechanical Engagement: Ensure that the removable terminal connector achieves a secure 5-point mechanical latch engagement with the module housing before energizing the external AC distribution circuits.