GE IC693UEX122AP1 Micro Expansion Unit

Configured for discrete I/O signal expansion in GE Series 90-30 controller networks, the GE IC693UEX122AP1 (IC693UEX122 Micro Expansion Unit) provides direct physical/electrical execution. The standalone hardware module incorporates a single main circuit board housing a dedicated microcontroller for local I/O processing and 100 uF of internal power supply filtering capacitance. Field connections route through a removable terminal block without requiring a backplane chassis.

Hardware Specifications

Deterministic Network and Expansion Communications

The IC693UEX122AP1 module utilizes the serial SNP / SNPX protocol architecture across dedicated communication links, maintaining deterministic backplane bus communication velocity and high data integrity across distances up to 200 meters. Up to 8 expansion units can be chained per CPU processor. Firmware flash compatibility enables automatic I/O density scaling and device auto-configuration upon power-up sequence completion, eliminating manual hardware setup parameters.

Frequently Asked Questions

Q: What are the external power supply requirements for the IC693UEX122AP1?

A: The module requires an external 24 VDC supply drawing 150 mA, while drawing an additional 50 mA at 5 VDC directly from the communication link interface.

Q: Can the module be replaced while the system is energized?

A: Yes, the unit supports hot-swapping procedures for field maintenance without requiring a complete system shutdown, provided local electrical safety procedures are observed.

Q: Is a rack or backplane required for mounting this expansion unit?

A: No, the IC693UEX122AP1 functions as a standalone unit without needing a backplane or rack chassis.

Field Installation Guidelines

1. Mount the unit vertically inside an IP20-compliant enclosure on standard DIN-rail or panel cutouts, allowing adequate airflow clearances for ambient operating temperatures between 0 deg C and 60 deg C.
2. Ensure external 24 VDC power wiring and communication links are de-energized prior to removing or attaching the terminal block.
3. Route field wiring for the 12 digital inputs and 8 transistor outputs through the removable terminal block using proper wire gauges and ferrules to prevent short circuits.
4. Maintain signal line isolation and connect overall cable shielding to functional earth at a single termination point to prevent noise coupling over long distance runs (up to 200 meters).
5. Verify that no more than 8 total expansion modules are linked on a single CPU loop.