OVERVIEW

Official designation: GE Fanuc IC693ALG221 (Series 90-30, Analog Current Input Module)

Role/Application: Four-channel module converting 0–20 mA or 4–20 mA current signals to digital values with 12-bit resolution for industrial control and monitoring.

KEY SPECS SUMMARY

Power: 25 mA at 5 VDC, 100 mA at 24 VDC Isolated

Interfaces / Ports: One field wiring terminal block

Indicators: One LED for power supply status

Operating Temp: 0 degrees C to 60 degrees C

Platform / Compatibility: Series 90-30 rack, any I/O slot

Limit: 12-bit resolution, 250 ohms input impedance

Lifecycle: Discontinued

FREQUENTLY ASKED QUESTIONS

Technical Specifications:

Q: What is the maximum voltage for electrical isolation between the field side and the logic side?

A: The module provides 1500 volts of isolation between the field and logic sides.

Wiring & Installation:

Q: What type of field wiring cable is recommended to minimize noise interference for the inputs?

A: Twisted and shielded instrumentation cable connected to COM or GND is required.

Troubleshooting & Compatibility:

Q: How is the input current range selected between 0–20 mA and 4–20 mA on the module?

A: The current input range is selected by positioning internal jumpers on the I/O terminal board.

Replacement & Upgrades:

Q: What is the resolution for the 4–20 mA input range when the signal is converted to digital counts?

A: In the 4–20 mA range, the resolution is 4 microamps per count, scaling 4 mA to 0 counts.