General Electric UR-6PH Digital I/O Module

General Electric UR 6PH Digital I/O Module

Configured for digital input/output execution in UR Series Universal Relay frames, the General Electric UR 6PH (UR-6PH Digital I/O Module) provides direct physical contact processing for substation control points. The module implements six Form-A output channels and four digital input channels, enabling deterministic state transitions through the UR backplane communication bus.

Hardware Specifications

Profinet / EtherNet/IP Deterministic Networks

The UR-6PH module aligns with GE industrial control conventions, where deterministic Ethernet-based relay communication is maintained through the UR platform’s internal bus. Output channels follow fixed-state propagation rules, ensuring predictable timing under load. The module’s I/O density scaling supports mixed digital input/output allocation without requiring firmware flash compatibility adjustments across UR relay families.

Frequently Asked Questions

Q: Does the UR-6PH support hot-swap replacement within a UR chassis? A: The UR platform allows module replacement only when the relay is de-energized; UR-6PH does not support live hot-swap due to backplane signal integrity requirements.

Q: How much backplane current does the UR-6PH draw? A: The exact current value is not specified in the provided data; however, UR digital I/O modules typically rely entirely on the relay’s internal supply without external power injection.

Q: Are the Form-A outputs suitable for fast transfer schemes? A: Form-A outputs provide standard mechanical contact operation; they are not classified as fast Form-C or SSC outputs and therefore should not be used for high-speed transfer tripping.

Field Installation Guidelines

• Maintain shield termination at a single point to avoid ground loops on digital input wiring.
• Route output wiring separately from CT/PT circuits to minimize induced noise.
• Ensure Form-A output contacts are wired with proper arc suppression components when switching inductive loads.
• Verify backplane seating by applying uniform pressure across the module’s connector edge during installation.
• Follow standard UR chassis grounding practices to maintain deterministic communication behavior.