Product Introduction
When your control system requires precise analog signaling for modulating valves, drives, or recorders, the GE IC693ALG392 from the Series 90-30 family delivers reliable performance. This analog output module provides eight single-ended channels capable of voltage (0 to +10 V unipolar, -10 to +10 V bipolar) or current (0 to 20 mA, 4 to 20 mA) outputs. Each channel offers configurable 15- or 16-bit resolution depending on the selected range, making the GE IC693ALG392 a versatile choice for both new installations and upgrades from older analog modules.
Technical Specifications Breakdown
The GE IC693ALG392 is built for accuracy and flexibility. Below are key performance parameters derived directly from the product datasheet:
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Channels: 8 single-ended outputs
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Voltage Output Range: 0 to 10 V (unipolar), -10 to +10 V (bipolar)
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Current Output Range: 0 to 20 mA, 4 to 20 mA
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Resolution (4-20 mA): 0.5 µA per bit
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Resolution (0-20 mA): 0.625 µA per bit
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Resolution (0-10 V / -10 to 10 V): 0.312 mV per bit
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Update Rate: 8 ms for all channels
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External Supply Voltage: 20 to 30 VDC (isolated, user-supplied)
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Internal Supply: 5 VDC from PLC backplane
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Power Consumption: 110 mA at 5 VDC, 315 mA at 24 VDC (user supply)
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Lifecycle Status: Discontinued/Obsolete – suitable for replacement or upgrade projects
These specs ensure the GE IC693ALG392 delivers steady, noise-resistant analog signals for demanding industrial environments.
Industry Applications
The GE IC693ALG392 is commonly used in process control applications requiring precise analog output. Typical scenarios include:
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Variable Frequency Drives (VFD) Control: Sends 0-10 V or 4-20 mA speed setpoints to drives, enabling energy-efficient motor regulation.
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Control Valve Positioning: Provides accurate current signals (4-20 mA) to valve positioners, ensuring exact flow or pressure control.
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Data Retransmission: Re-transmits analog data to recorders or data loggers, allowing remote monitoring of process variables.
In upgrade projects, replacing older analog modules with the GE IC693ALG392 can improve resolution and reduce wiring complexity due to its support for both voltage and current outputs on the same module.
Installation & Setup Guidance
Installing the GE IC693ALG392 is straightforward when following standard Series 90-30 practices. The module fits any slot in an RX3i chassis without slot restrictions, though the number of analog data points depends on the controller's capability. To operate, connect a 24 VDC isolated power supply to the module's designated terminal block – this supply is required for analog output generation. The internal 5 VDC is drawn from the PLC backplane. Ensure the external supply is within the 20-30 VDC range and properly fused. For best noise immunity, use shielded twisted-pair cables for analog outputs and route signal wires away from high-voltage power lines.
Selection Guide & Purchasing Advice
Since the GE IC693ALG392 is discontinued, verify its compatibility with your existing Series 90-30 or RX3i system. Confirm that your controller supports the required number of analog data points. For drop-in replacements, the module is functionally identical to earlier versions. If you need a reliable source for this legacy part, UBEST Automation (available at ubest101) offers verified, tested units with clear specifications. Always check the module's calibration status and ensure the external supply voltage matches your plant's standard. For new designs, consider evaluating current active alternatives, but for maintenance of existing systems, the GE IC693ALG392 remains a robust choice.