Configured for high-isolation load switching in Field Control networks, the General Electric IC670MDL930 (IC670MDL930 Relay Module) provides direct physical/electrical execution.

Suffix Breakdown & Model Matrix

The IC670MDL930 is a standard relay output unit. There are no configurable hardware sub-variants or functional suffixes associated with this catalog number in the current technical documentation.

Hardware Specifications

Profinet and EtherNet/IP Deterministic Networks

The IC670MDL930 integrates into the Field Control bus architecture to provide deterministic relay state control. The module interface facilitates communication between the Bus Interface Unit (BIU) and the physical relay output terminals. Because relay switching involves mechanical contact movement, deterministic system design must account for the inherent switching latency of the electromechanical components. Firmware flash compatibility is critical to ensure that output state changes are mapped correctly within the cyclic I/O scan, ensuring consistent response times across the control network.

Frequently Asked Questions (FAQ)

Q: Can this module be used to switch high-inductive loads?

A: Mechanical relays are susceptible to contact pitting when switching high-inductive loads. It is recommended to use external arc suppression (such as RC snubbers) to extend the relay contact lifespan.

Q: How is the relay status reported to the host controller?

A: The module reports output states via the internal backplane bus to the BIU, which integrates this data into the controller's I/O image table for real-time logic processing.

Field Installation Guidelines

1. Secure the terminal base to a vibration-dampened DIN rail to prevent unnecessary mechanical stress on the relay components.
2. Align the module housing carefully with the terminal base guide pins before seating the backplane pins to avoid connector misalignment.
3. Verify that all field-side wiring is rated for the expected current and voltage loads, adhering to the module's maximum switching capacity.
4. Route field wiring away from high-speed digital signal lines to prevent mechanical switching noise from coupling into sensitive analog or low-voltage input circuits.
5. Apply correct torque to terminal screws to ensure gas-tight connections, preventing contact resistance issues over the lifecycle of the relay module.