Product Introduction
When a process demands precise modulating control of variable frequency drives (VFDs) or control valves, the GE Fanuc IC693ALG392 delivers reliable analog output signals. Part of the Series 90-30 family, this module provides eight single-ended output channels capable of 0 to +10 VDC (unipolar), -10 to +10 VDC (bipolar), 0 to 20 mA, or 4 to 20 mA signals. Each channel supports configurable 15- or 16-bit resolution, ensuring accurate signal reproduction for demanding industrial applications.
Technical Specifications Breakdown
The IC693ALG392 offers several key performance metrics derived from its design. Voltage output resolution reaches 0.312 mV for both 0-10 V and -10 to 10 V ranges, while current output resolution is 0.5 µA for 4-20 mA and 0.625 µA for 0-20 mA. The module updates all channels simultaneously within 8 ms, enabling responsive closed-loop control. Power is supplied internally via 5 VDC from the PLC backplane (consuming 110 mA) and requires an external 20 to 30 VDC source (drawing 315 mA at 24 VDC). This dual-supply architecture isolates the output circuitry from the backplane, enhancing noise immunity.
Industry Applications
In a water treatment plant, the IC693ALG392 can modulate chemical dosing pumps by sending 4-20 mA signals to variable-speed drives, maintaining precise pH levels. For a packaging line, it might output 0-10 V to position servo-driven actuators, ensuring repeatable film sealing. The module also serves as a retransmission device, forwarding analog data from a PLC to remote recorders or data loggers for trending analysis.
Installation & Setup Guidance
Mount the IC693ALG392 into any available slot of an RX3i chassis. Connect the external 24 VDC power supply to the designated terminal block, observing polarity. Wire field devices to the appropriate output terminals, ensuring proper shielding for long cable runs. Configure each channel's range and resolution via the programming software before commissioning. No slot limitations exist per rack, but verify the controller's total analog data capacity.
Maintenance & Reliability
Periodically inspect terminal connections for tightness and check for signs of corrosion or moisture ingress. Because the module is factory calibrated, recalibration is generally unnecessary unless drift is suspected. Given its discontinued status, maintaining a spare unit on hand minimizes downtime. Follow standard ESD precautions during handling.
Compatibility & Integration
The IC693ALG392 integrates seamlessly with GE Fanuc Series 90-30 and RX3i controllers. It communicates over the backplane, requiring no external network configuration. The module is compatible with any PLC that supports Series 90-30 analog I/O modules, making it a straightforward upgrade or replacement in existing systems.
Selection Guide & Purchasing Advice
Before ordering the IC693ALG392, verify your system's power supply capacity for the additional 315 mA at 24 VDC. Confirm the required output type (voltage or current) and resolution needs. As this module is discontinued, contact SpareTechPLC to confirm current availability and explore alternative options if needed. SpareTechPLC stocks this module and can advise on suitable replacements.
Frequently Asked Questions
1. Can the IC693ALG392 output both voltage and current simultaneously on different channels?
Yes, each of the eight channels is independently configurable for voltage or current output, allowing mixed-signal applications.
2. What is the maximum cable length for analog outputs?
While not specified in the datasheet, standard practice for 4-20 mA loops allows up to several hundred meters with proper shielding. For voltage outputs, keep cable runs under 50 feet to minimize voltage drop.
3. Is the IC693ALG392 compatible with the RX3i controller?
Yes, the module fits any slot in an RX3i chassis. The number of modules per rack is limited only by the controller's analog data capacity.
4. How do I configure the resolution to 16 bits?
Select the desired output range in your programming software; the module automatically applies the appropriate resolution (15 or 16 bits) based on the range chosen.
5. What happens if the external 24 VDC supply fails?
Without external power, the module cannot generate output signals. The backplane 5 VDC remains active, but outputs will go to a default state (typically 0 V or 0 mA).
