GE PACSystems RX3i IC694ALG392 Current/Voltage Output
Manufacturer: GE Fanuc
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Part Number: IC694ALG392
Condition：New with Original Package
Product Type: Analog Output Modules
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Country of Origin: USA
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
Product Overview
The GE Fanuc IC694ALG392 functions as a high-precision 8-channel analog output module within the PACSystems RX3i architecture. It converts digital data from the RX3i CPU into high-resolution analog signals to drive actuators, variable frequency drives (VFDs), and control valves. This module supports multiple software-configurable ranges, including 4 to 20 mA current loops and ±10 V voltage signals. Designed for mission-critical process control, the IC694ALG392 provides the essential interface for closed-loop automation in power generation, water treatment, and heavy manufacturing.
Technical Specifications
The IC694ALG392 utilizes advanced DAC (Digital-to-Analog Converter) technology to deliver superior signal stability:
| Parameter | Specification |
| Model Number | IC694ALG392 |
| Series | PACSystems RX3i |
| Output Channels | 1 to 8 Selectable (Single-ended) |
| Current Output Ranges | 4 to 20 mA, 0 to 20 mA |
| Voltage Output Ranges | 0 to 10 V, –10 V to +10 V |
| Resolution | 16-bit (per channel) |
| Update Rate | ~8 ms (All eight channels) |
| External Power Supply | +24 VDC (20 VDC to 30 VDC range) |
| Internal Power Draw | 110 mA from +5 VDC backplane |
| Isolation | 250 VAC continuous (Field to Backplane) |
| Weight | 0.3 kg (Net) / 1.5 kg (Shipping) |
| Condition | 100% Brand New, Factory Sealed |
Engineering Advantages
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Precision Actuator Control: High-resolution 16-bit conversion allows for ultra-fine adjustments in valve positioning and motor speeds. This precision minimizes process variance and improves final product quality.
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Dual Mode Versatility: This module eliminates the need for separate voltage and current cards. Software configuration allows engineers to mix current and voltage outputs on the same module, reducing hardware inventory and panel footprint.
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Advanced Electrical Isolation: Optical isolation protects the RX3i backplane from field-side electrical surges and ground loops. This rugged design prevents localized electrical faults from cascading into system-wide controller failures.
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Integrated Status Monitoring: Front-panel LEDs and software-level diagnostics instantly report loss of field power or channel malfunctions. These features allow maintenance teams to identify and resolve wiring issues without extensive manual probing.
FAQs
Q1: Does the IC694ALG392 require an external power supply?
A1: Yes. While the module draws 110 mA from the PLC backplane for logic operations, it requires an external +24 VDC source (315 mA) to drive the analog output loops.
Q2: Can I configure each channel independently?
A2: Absolutely. You can software-configure each of the 8 channels to operate in different ranges (e.g., Channel 1 at 4-20mA while Channel 2 operates at -10V to +10V) to suit your specific field device requirements.
Q3: How does the IC694ALG392 handle a loss of field power?
A3: The module monitors the external 24 VDC supply continuously. If voltage drops below the functional threshold, the module triggers a diagnostic fault and communicates the "Loss of User Supply" status to the RX3i CPU for immediate alarming.
Q4: Is this module compatible with older Series 90-30 racks?
A4: The IC694ALG392 is part of the RX3i series. While it shares some physical similarities with 90-30 modules, it specifically requires an RX3i Universal Backplane (IC695 serial bus) to utilize its full high-speed capabilities and diagnostic features.