IC693ALG442 GE | 4-Input 2-Output Analog Combo
Manufacturer: GE Fanuc
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Part Number: IC693ALG442
Condition：New with Original Package
Product Type: PLC Processors
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Country of Origin: USA
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
Product Overview
The GE Fanuc IC693ALG442 functions as a versatile Analog Combination Module for the Series 90-30 PLC platform. This 100% Brand New original unit provides a cost-effective solution for systems requiring both input and output capabilities in a single slot. It features four differential input channels for monitoring voltage signals and two single-ended output channels for controlling current-driven actuators. By consolidating mixed analog functions, the IC693ALG442 maximizes rack space while providing high-precision interfacing for PID loops, valve positioning, and sensor monitoring.
Technical Specifications
| Feature | Technical Details |
| Model Number | IC693ALG442 / IC693ALG442C |
| Input Channels | 4 Differential Channels |
| Output Channels | 2 Single-ended Channels |
| Input Voltage Range | 0 to 10 V, -10 to +10 V |
| Output Current Range | 0–20 mA, 4–20 mA |
| Update Rate | 8 milliseconds (All channels) |
| Accuracy | 0.25% at 25°C |
| Input Impedance | 800 K Ohms |
| External Supply | 20 to 30 VDC (24 VDC Nominal) |
| Resolution (Input) | 2.5 mV (0-10V) / 5 mV (-10 to +10V) |
| Resolution (Output) | 0.5 µA (4-20mA) / 0.625 µA (0-20mA) |
Engineering Advantages
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Consolidated I/O Footprint: The IC693ALG442 replaces the need for separate input and output modules. This single-slot design reduces hardware costs and frees up backplane space for additional communication or digital modules, which is ideal for compact control cabinets.
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High-Precision Signal Handling: With an accuracy rating of 0.25%, the module ensures reliable data conversion for critical process variables. It interprets small voltage fluctuations from sensors and translates them into precise 12-bit digital values for the CPU.
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Fast Loop Response: An 8ms update rate across all channels supports responsive control loops. This speed allows for real-time adjustments in dynamic systems such as variable-speed drives or pressure-regulating valves.
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Flexible Logic Interfacing: The module supports multiple voltage and current ranges through software configuration. This versatility allows engineers to standardize on one module type for diverse field devices, simplifying spare parts management.
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Robust Differential Inputs: The four differential input channels provide high common-mode rejection. This circuitry effectively suppresses electrical noise and ground loop interference, maintaining signal integrity in electrically "noisy" industrial environments.
FAQs
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Does the IC693ALG442 require an external power supply?
Yes. While the module draws logic power from the backplane, the analog circuitry requires an external 24 VDC power supply (connected via the terminal block) to drive the 4-20mA output loops and maintain input accuracy.
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Can I mix voltage and current on the same module?
The IC693ALG442 specifically handles voltage for the four input channels (-10 to +10V) and current for the two output channels (0-20mA or 4-20mA). If you require voltage outputs, you would need an ALG390 or similar voltage-specific module.
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How does the module handle a loss of external power?
The module features built-in diagnostics. If the external 24V supply fails or falls out of the 20-30VDC range, the PLC identifies a "Loss of User Supply" fault, allowing the control logic to initiate a safe shutdown or alarm.