GE IC693ALG391G Analog Current/Voltage Output Module

FAQ

Q1: What is the GE Fanuc IC693ALG391G used for?
The IC693ALG391G is an analog output module used in Series 90-30 PLC systems to provide precise analog control signals to external devices such as control valves, variable frequency drives, and process controllers.

Q2: How many analog output channels does the IC693ALG391G provide?
The module provides two independent analog output channels, allowing the PLC to control two separate analog devices simultaneously.

Q3: What output signals are supported by the IC693ALG391G?
The module supports 0–20 mA, 4–20 mA current outputs and 0–5 VDC, 1–5 VDC voltage outputs, making it suitable for common industrial instrumentation applications.

Q4: What is the resolution of the IC693ALG391G?
The module uses a 12-bit digital-to-analog converter. The resolution is 4 µA per count for 4–20 mA output, 5 µA per count for 0–20 mA output, 1 mV per count for 1–5 V output, and 1.25 mV per count for 0–5 V output.

Q5: Does the IC693ALG391G require an external power supply?
Yes. The module requires both the +5 VDC backplane supply and an isolated +24 VDC supply from the backplane or an external user supply source.

Q6: What isolation protection does the IC693ALG391G provide?
The module provides 1500 VAC isolation between the field wiring side and the PLC logic side, helping protect the control system from electrical noise and external disturbances.

Q7: What does the “G” revision indicate?
The “G” suffix identifies the hardware revision of the IC693ALG391 analog output module. Revision changes represent manufacturing improvements while maintaining compatibility with Series 90-30 PLC systems.

Q8: What should be checked before replacing an IC693ALG391G module?
Before replacement, verify the Series 90-30 rack compatibility, output signal type, external 24 VDC supply condition, field wiring, scaling parameters, terminal connections, and PLC configuration to ensure correct analog output operation.