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SKU: IC693ALG391

GE Fanuc IC693ALG391 Analog Current Output Module

The GE Fanuc IC693ALG391 is a 2-channel analog output module for Series 90-30 PLCs. It provides high-resolution 4-20 mA and 0-10 V signals with isolated 24 VDC power support. This precise module ensures reliable control for valves, drives, and other industrial actuators.

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The IC693ALG391 is a dual-channel precision interface designed for the GE Series 90-30 PLC system. This module converts digital processor data into stable analog signals to drive industrial field devices. It supports both current and voltage modes, providing critical control for actuators and modulating valves. Users can configure the outputs for standard ranges such as 4-20 mA and 0-10 VDC. Furthermore, the hardware maintains high signal stability even in environments with significant electrical noise.

Technical Specifications

AttributeDetail
ManufacturerGE Fanuc (Emerson)
Model NumberIC693ALG391
System PlatformSeries 90-30 PLC
Output Channels2 Independent Channels
Current Ranges0 to 20 mA, 4 to 20 mA
Voltage Ranges0 to 10 V, 0 to 5 V, 1 to 5 V
Resolution (Current)4 µA (4-20 mA mode)
Backplane Power (5V)30 mA
External Power (24V)215 mA

Core Technical Characteristics

  • Multi-Range Versatility: Every channel independently supports current loops or voltage outputs for diverse device compatibility.
  • Superior Output Resolution: The module offers fine-step adjustments at 4 µA per bit for exact process modulation.
  • Flexible Power Sourcing: Internal logic uses backplane power while field circuits utilize isolated 24 VDC supplies.
  • Industrial Accuracy: High-performance digital-to-analog converters ensure minimal signal drift across the operating temperature range.
  • Compact Form Factor: The single-slot design allows for high-density I/O configurations within any Series 90-30 rack.
  • Robust Circuit Isolation: Built-in galvanic isolation protects the PLC backplane from field-side electrical surges.
  • Seamless Integration: The module works with all standard Series 90-30 CPUs via simple hardware configuration.

Industrial Applications

Control engineers primarily utilize the IC693ALG391 to manage variable frequency drives and pneumatic positioners. The module also provides reliable signal feeds for chart recorders and remote data loggers. In water treatment facilities, it accurately regulates chemical dosing pumps and flow control valves. Additionally, the unit serves as an ideal interface for analog panel meters in local control stations. Its rugged USA-made construction ensures long-term performance in heavy manufacturing and power generation plants.

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Hardware Specifications

ParameterSpecification
ModelIC694MDL645
BrandGE
OriginUSA
Weight0.3 kg
Dimensions3.5 cm x 13.2 cm x 13.5 cm
Operating TempStandard Industrial Range
Power ConsumptionBackplane Dependent
Input Channels16
Rated Voltage24 VDC
ON-state Voltage11.5 VDC to 30 VDC
OFF-state Voltage0 VDC to 5 VDC
Response Time7 ms (typical)

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System communication velocity and deterministic performance are regulated by the PACSystems backplane architecture. Signal integrity is preserved through high-level galvanic isolation, rated at 1500 VAC for one minute, whereby electrical noise interference is mitigated. Furthermore, firmware flash compatibility is ensured during module replacement, provided that the backplane remains energized within the specified voltage tolerances. The module is engineered for integration within both local and remote RX3i I/O racks, while support for RX7i systems is provided exclusively in distributed I/O configurations.

Frequently Asked Questions

Q: Is the module capable of being hot-swapped while the system is powered?A: Yes, the module is designed to be extracted and inserted while the RX3i backplane is energized; however, field wiring must be verified to ensure no short-circuit conditions are created during the removal process.Q: How is the signal response time managed in high-speed applications?A: A typical response time of 7 milliseconds is imposed by the hardware filter circuits. This latency is inherent and should be accounted for when high-speed pulse capture is required.

Field Installation Guidelines

  • The module is to be mounted onto the designated RX3i backplane slot. A mechanical click is heard when the module is fully seated.
  • Prior to wiring, the 24 VDC power supply must be verified for voltage stability.
  • Signal wires are to be connected to the terminal block. A secure, firm connection is required to prevent intermittent signal loss caused by vibration.
  • Shielding must be grounded at the designated earth terminal to ensure that electromagnetic interference is properly diverted.
  • Once the module is seated and wired, the status LEDs are to be inspected for illumination corresponding to active field device states.
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