Field Control Output Module | General Electric IC600LR648

The IC670MDL330 is a 16-point discrete output module manufactured for the GE Fanuc Field Control I/O architecture. Operating across a nominal voltage range of 12 to 120 VAC, this module enables distributed control systems to switch AC field loads such as solenoids, motor starters, and indicator lights through intelligent Bus Interface Units (BIUs).

Channel Density and Load Ratings

The module houses 16 solid-state AC output points configured in a single isolated group. Each channel supports a maximum continuous load current of 1.0 A over a 10 to 132 VAC operating range, with a total combined module current capacity of 4.0 A. It accommodates transient inrush currents up to 10 A per point for one full AC cycle (20 ms) to reliably drive inductive loads.

Circuit Protection and Diagnostic Features

Internal hardware protection includes a 5 A slow-blow fuse (5 x 20 mm) that safeguards the module's power circuits against overcurrent conditions. Integrated RC snubber circuits across each channel suppress switching transients. When a fuse failure occurs, the unit generates a diagnostic alert to the host system while visual LEDs indicate point logic states and power status.

System Integration and Power Distribution

Designed for terminal block mounting within the Field Control platform, the unit exchanges 16 bits (2 bytes) of discrete output data via a Bus Interface Unit. Logic power is drawn directly from the backplane BIU supply (up to 275 mA), while field load power is routed independently through external AC line connections.

Frequently Asked Questions

Q: Is the IC670MDL330 a discrete input or a discrete output module?A: The IC670MDL330 is a discrete AC output module designed to drive loads up to 1.0 A per point, though some reseller listings mistakenly describe it as an input module.

Q: How is individual channel protection handled on this module?A: The module includes a shared 5 A slow-blow master fuse (5 x 20 mm) for group protection along with RC snubber circuits on each channel, but external fast-acting fusing is recommended if individual point isolation is required.