GE Electric | IC695ALG508-AA | 32-Channel Analog Input Module
IC695ALG508-AA Product Overview
Functional Description:
The GE IC695ALG508-AA is a 32-Channel Analog Input Module for PACSystems RX3i PLCs. It converts analog voltage/current signals from field sensors (e.g., pressure transducers, thermocouples) into high-resolution digital values for industrial process control.
Key Parameters & Specifications
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Parameter
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Specification
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|---|---|
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Part Number
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IC695ALG508-AA
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Series
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PACSystems RX3i I/O Modules
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Function
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Analog Input (32 channels)
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Input Types
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Voltage: ±10V, 0-5V, 0-10V; Current: 0-20mA, 4-20mA
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Resolution
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16-bit (65,536 counts)
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Accuracy
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±0.1% FSR @ 25°C
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Sampling Rate
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10 ms/channel (all channels scanned in 320 ms)
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Isolation
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500 V AC (channel-to-bus)
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Input Impedance
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1 MΩ (voltage), 250 Ω (current)
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Overvoltage Protection
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±35 V DC (continuous)
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Power Consumption
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1.2 W (5V DC from backplane)
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Operating Temp.
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-40°C to +70°C
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Connector Type
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Removable spring-clamp terminal (IC694ACC309)
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Certifications
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UL 508, CE, RoHS, cULus Class I Div 2
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Product Series
- Part of PACSystems RX3i Analog I/O Series (compatible with RX3i CPU racks).
Key Features
- Universal Inputs: Software-selectable voltage/current per channel.
- Open-Wire Detection: Alerts on 4-20mA sensor failures.
- High-Density Design: 32 channels in single-slot form factor.
- Automatic Cold-Junction Compensation: For thermocouple inputs (requires IC695ALGxxx-TC variant).
- Diagnostic LEDs: Per-module status (OK, Active, Fault) + channel-by-channel alerts.
- Software Filtering: Configurable averaging for noise reduction.
Functions & Roles
- Signal Conditioning: Linearizes raw sensor data to engineering units (e.g., PSI, °C).
- Scaling: Programmable scaling via PLC logic (e.g., 4-20mA → 0-100%).
- Alarm Generation: High/low limits with programmable deadbands.
- Data Logging: Buffered sampling for trend analysis.
- Fault Reporting: Detects overrange, underrange, and sensor disconnect.
Applications & Use Cases
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Industry
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Application
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|---|---|
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Manufacturing
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Process variable monitoring (flow, pressure)
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Water Treatment
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pH/conductivity sensor interfacing
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Energy
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Turbine temperature/vibration sensing
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Chemicals
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Reactor level/chemical concentration control
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HVAC
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Building temperature/humidity management
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Documentation & Support
- Manual: GFK-2314 (RX3i Analog I/O Modules)
| Compatible Hardware | Configuration Software |
|————————–|———————————|
| PACSystems RX3i CPUs | GE Proficy Machine Edition™ |
| RX3i Backplanes | VersaMax I/O Carrier (IC694) | - Firmware Updates: Via PCMCIA or Ethernet (using IC695PEM001)
- Replacement: IC695ALG508-AB (enhanced EMC version)
Critical Notes:
- Wiring: Field wiring not included (order IC694ACC309 terminals separately).
- Grounding: Shielded twisted pairs required for noise immunity.
- Current Inputs: External 24V loop power needed for 4-20mA sensors.
- Derating: Accuracy reduced to ±0.2% FSR at 70°C.
- Legacy Compatibility: Replaces 90-30 Series IC693ALGxxx modules.
- Thermocouples: Use IC695ALG508-Jx variant for direct TC input.
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