GE IC670ALG310-JA | 8-Channel Isolated Analog Voltage Output Module for PACSystems RX7i/Genius
14-Bit Precision Voltage Output Module for Process Actuator Control (Valves, VFDs, Motors) in Industrial Automation
1. Product Overview
The GE IC670ALG310-JA is an 8-channel isolated analog voltage output module for GE Fanuc PACSystems RX7i and Genius I/O System, designed to convert digital control signals from the PAC controller into precise -10V to +10V analog voltage outputs for field actuators (control valves, VFDs, variable speed motors, and electro-pneumatic positioners). Each channel features 2500V AC galvanic isolation (two isolated groups of 4 channels each) to prevent cross-talk and surge damage, with 14-bit resolution (0.012% of full scale), ±0.1% FS accuracy, and automatic scaling for flexible process control. The module operates on 18-30VDC (24VDC nominal, 8W max power), offers -40°C to +70°C wide temperature range, and includes enhanced diagnostics for overrange/underrange detection, power loss, and uncalibrated status, ensuring reliable operation in harsh industrial environments (oil/gas, chemical, power, water/wastewater) with IEC 61010-1 and CE compliance for safety and EMC immunity.
Key Specifications
• Model: IC670ALG310-JA (Revision JA)
• Type: 8-Channel Isolated Analog Voltage Output Module for PACSystems RX7i/Genius I/O
• Output Channels: 8 independent voltage outputs (-10V to +10V), 2 isolated groups (4 channels/group)
• Resolution/Accuracy: 14-bit (0.012% FS), ±0.1% FS (calibrated at 25°C)
• Isolation: 2500V AC channel-to-channel/group-to-ground (1 minute)
• Output Update Rate: 500ms max (all channels), 100ms per channel
• Power Supply: 18-30VDC (24VDC nominal), 8W max power consumption
• Operating Temperature: -40°C to +70°C; Storage: -40°C to +85°C
• Dimensions (W×H×D): 149.2mm × 44.45mm × 115.6mm (5.875×1.75×4.55 inches); Weight: ~0.2kg
• Diagnostics: Overrange/underrange detection, power loss, uncalibrated module, channel fault alarms
• Certifications: IEC 61010-1, CE, UL 61010-1 (industrial safety); IEC 61326-1 (EMC)
2. Core Features
• 8 Isolated Channels: 2500V AC isolation prevents electrical interference in noisy industrial environments.
• High Precision: 14-bit resolution and ±0.1% FS accuracy for precise control of process variables.
• Automatic Scaling: Output range configurable (0-5V, 0-10V, ±5V, ±10V) via PAC Programming Software.
• Enhanced Diagnostics: Real-time detection of overrange/underrange, power loss, and uncalibrated status with alarm outputs.
• Hot-Swappable Design: Easy removal/replacement without disconnecting field wiring or power.
• LED Status Indicators: Module power, group isolation, and channel activity LEDs for quick troubleshooting.
• Field Calibration: Supports on-site calibration or factory reset for long-term accuracy.
• Wide Temperature Range: -40°C to +70°C for reliable operation in extreme industrial conditions.
YMGK Purchase Information
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3. Typical Applications
• Oil & Gas: Wellhead choke valve control (±10V to electro-hydraulic actuators); pipeline pressure regulation (0-10V to pressure controllers).
• Chemical Processing: Reactor temperature control (4-20mA via voltage-to-current converter); batch process flow control (0-5V to metering pumps).
• Power Generation: Turbine speed control (±10V to governor actuators); boiler feedwater flow control (0-10V to VFDs).
• Water/Wastewater: Sewage treatment aerator speed control (0-10V to VFDs); chemical dosing pump modulation (±5V to proportional valves).
• Pulp & Paper: Paper machine speed synchronization (0-10V to drive controllers); steam pressure control (±10V to control valves).
4. Installation & Maintenance
Installation: Mount on RX7i/Genius I/O rack; connect 24VDC power (reverse-polarity protected). Wire analog outputs to field devices (twisted-pair shielded cable, max 300m). Verify insulation resistance (>100MΩ) before power-up.
Configuration: Use PAC Programming Software to set output range (-10V to +10V default), scaling (0-100% to 0-10V), and alarm thresholds (overrange = +10.05V, underrange = -10.05V).
Maintenance: Monthly: Inspect analog connections; check power supply voltage (22-26VDC). Annual: Perform 2-point calibration (0V, +10V) with precision multimeter; replace module if fault codes (e.g., uncalibrated, overrange) persist.
Fault Diagnosis: Channel overrange = Check process variable limits; Isolation fault = Inspect wiring for short circuits; Power loss = Verify 24VDC supply and module connections.
Technical Document | GE IC670ALG310-JA | 8-Channel Isolated Analog Voltage Output Module for Industrial Process Control
