Description
3. Key Technical Specifications
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Parameter
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Specification
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|---|---|
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Channels
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2 single-ended analog voltage outputs
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Output Range
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±10V DC (bipolar) / 0-10V DC (unipolar)
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Resolution
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13-bit (2.5mV/LSB)
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Update Rate
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5ms per channel (configurable for synchronization)
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Accuracy
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±5mV FS @ 25°C; ±10mV FS over 0°C–60°C
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Isolation
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1500V RMS (field-to-logic); >80dB cross-channel rejection (DC-1kHz)
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Output Impedance
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100Ω (active sink)
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Power Consumption
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50mA @ 24V DC (backplane)
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Operating Temperature
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-20°C to +60°C ( -4°F to 140°F )
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|
Mounting
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DIN rail/panel-mountable (fits 5-slot/10-slot Series 90-30 baseplates)
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|
Compliance
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CE, UL, RoHS
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GE IC693ALG390
4. Product Introduction
The GE IC693ALG390 is a 2-channel analog voltage output module designed for GE Series 90-30 PLC systems, delivering precise ±10V DC control signals for industrial automation tasks like valve positioning and motor speed regulation.
This module’s dual-channel architecture reduces I/O rack space by 50% compared to single-channel units. Its 2.5mV resolution ensures smooth control of sensitive processes (e.g., pH adjustment), while 1500V RMS isolation mitigates noise from motors or variable-frequency drives. The 5ms update rate supports rapid response in high-speed applications like robotic assembly lines.
5. Firmware/Software Versions & Upgrade Notes
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Recommended Firmware: v3.0.1 (last stable Series 90-30 release; fixes v2.9.x watchdog timer crashes).
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Compatibility:
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PLC Compatibility: Works with Series 90-30 CPUs (e.g., IC693CPU331). Requires Logicmaster 20/30 or Proficy Machine Edition.
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Communication: Native backplane protocol (no Modbus RTU support).
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Upgrade Risks:
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Firmware v3.0.1 mandates a cold restart (no hot-swap).
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Downgrading to v2.9.x may cause output drift if calibration data is incompatible.
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6. Frequently Asked Questions (FAQ)
1. Can I hot-swap the IC693ALG390 while the PLC is running?
No. Hot-swapping risks backplane short circuits. Power down the rack, verify 24V stability, then replace. The module’s 50mA backplane draw requires stable power—test with a multimeter before installation.
2. Is the IC693ALG390 compatible with Series 90-70 PLCs?
No. Use IC694ALG390 for Series 90-70 (identical form factor, updated pinout).
3. How do I troubleshoot “output stuck at 0V”?
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Check field wiring: Ensure no shorts to ground.
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Verify output mode jumper: Unipolar vs. bipolar settings.
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Use a loop calibrator to inject a 5V signal—monitor
%AQregisters in Proficy.
4. Warranty terms for New Surplus units?
12 months, covering manufacturing defects. We perform:
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Incoming traceability checks (OEM serial verification).
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24h load test (50mA continuous output).
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Megger insulation test (>10MΩ).
5. Why is this cheaper than OEM but pricier than refurbished?
This is New Surplus: unused stock with full QC (anti-static packaging, calibration backups). Refurbished units often have degraded capacitors or untested isolation—leading to unplanned downtime.
6. Can I use unshielded cables with this module?
No. Shielded twisted-pair (STP) is mandatory to minimize noise. Ground the shield to the module’s “GND” terminal.
7. Does the IC693ALG390 support daisy-chaining?
No. Each module requires a dedicated PLC slot. For multi-channel needs, use IC693ALG392 (4-channel).
GE IC693ALG390
Critical Implementation Notes
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Power Budget: At 50mA/channel, a 10-channel system draws 500mA—ensure PLC backplane can supply 2A minimum.
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ESD Protection: Use grounded wrist straps during installation. The module’s CMOS outputs are sensitive to >50V ESD.
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Spare Parts Strategy: Stock IC693ALG390F (identical to IC693ALG390 but with enhanced thermal management).
