GE IC693ALG392 Review: 8-Channel Analog Output Module
GE IC693ALG392 Overview
The GE IC693ALG392 is a robust analog output module from the Series 90-30 family. It offers eight single-ended output channels that support both voltage and current signals. This module is designed for precise control of modulating devices like Variable Frequency Drives (VFDs) and control valves. Its flexibility makes it a valuable component in industrial automation systems.
Key Features of the IC693ALG392
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Eight Output Channels: Each channel is independently configurable for unipolar (0 to +10 V) or bipolar (-10 to +10 V) voltage, as well as current ranges (0-20 mA or 4-20 mA).
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Configurable Resolution: Users can select 15 or 16-bit resolution depending on the output range, ensuring accurate signal generation.
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Fast Update Rate: The module updates all channels in just 8 milliseconds, enabling responsive control.
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External Power Supply: It requires an isolated 24 VDC supply connected directly to the terminal block, while the backplane provides 5 VDC internally.
Technical Specifications
The IC693ALG392 delivers precise output signals. For voltage, the resolution is 0.312 mV per count for both 0-10 V and -10 to +10 V ranges. For current, the module achieves 0.5 microamps per count for 4-20 mA and 0.625 microamps per count for 0-20 mA. The module consumes 110 mA at 5 VDC from the backplane and 315 mA at 24 VDC from the user-supplied source.
This module is factory-calibrated and fits into any slot of an RX3i chassis. There are no slot restrictions, and the number of modules per system depends on the controller’s data handling capacity.
Applications and Use Cases
Typical applications include controlling VFDs, modulating control valves, and retransmitting analog data to recorders or data loggers. The module’s ability to handle both voltage and current signals makes it adaptable to various industrial processes.
Conclusion
The GE IC693ALG392 is a reliable choice for engineers needing precise analog output control. While it is now discontinued, it remains a solid option for existing Series 90-30 systems. Its eight channels, fast update rate, and configurable resolution provide the flexibility needed for demanding automation tasks.