Description
3. Key Technical Specifications
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Parameter
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Specification
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Input Channels
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4 differential (current/voltage)
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Output Channels
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2 single-ended (current/voltage)
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Input Ranges
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0-20mA, 4-20mA, 0-10V DC, -10-10V DC (software-selectable)
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Output Ranges
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0-20mA, 4-20mA, 0-10V DC, -10-10V DC (software-selectable)
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Resolution
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12-bit (5μA/LSB for 4-20mA; 2.5mV/LSB for 0-10V)
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Input Update Rate
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8ms per channel (all channels simultaneous)
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Output Update Rate
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4ms per channel (all channels simultaneous)
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Accuracy
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±0.25% full scale (FS) @ 25°C; ±0.5% 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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Power Consumption
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95mA @ 5V DC (backplane); 129mA @ 24V DC (isolated supply)
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Operating Temperature
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0°C to 60°C (32°F to 140°F)
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GE IC693ALG442
4. Product Introduction
The GE IC693ALG442 is a mixed analog input/output module designed for GE Series 90-30 PLC systems, providing 4 differential analog inputs (for sensors like pressure transducers) and 2 single-ended analog outputs (for actuators like valves). It supports 12-bit resolution for precise signal acquisition and control, with software-selectable ranges to adapt to diverse industrial devices.
Core Value Proposition:
The module’s 4-20mA/0-10V compatibility eliminates the need for multiple I/O modules, reducing cabinet space and wiring complexity. Its 8ms input update rate and 4ms output update rate ensure real-time responsiveness for time-sensitive applications (e.g., process control, motor speed regulation). The 1500V RMS isolation protects the PLC from electrical noise, making it suitable for harsh industrial environments.
5. Firmware/Software Versions & Upgrade Notes
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Recommended Firmware: v3.0.1 (last stable Series 90-30 release; fixes communication bugs in v2.9.x).
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Compatibility:
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PLC Compatibility: Works with all Series 90-30 CPUs (e.g., IC693CPU331, IC693CPU350).
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Configuration Tools: Programmable via Logicmaster 20/30 or Proficy Machine Edition (IEC 61131-3 compliant).
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Upgrade Risks:
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Upgrading firmware to v3.0.1 requires a cold restart of the PLC (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 IC693ALG442 while the PLC is running?
No. Hot-swapping risks backplane short circuits. Power down the rack, verify 5V/24V stability, then replace. The module’s 95mA backplane draw demands stable power—test with a multimeter before installation.
2. Is the IC693ALG442 compatible with Series 90-70 PLCs?
No. Use IC694ALG442 for Series 90-70 (identical form factor, updated pinout).
3. How do I switch between current and voltage input modes?
Use Proficy Machine Edition to configure each channel’s input range (4-20mA, 0-10V, etc.). No hardware jumpers are required—changes take effect after a PLC restart.
4. What’s the warranty for this “New Surplus” unit?
12 months, covering manufacturing defects. We perform:
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Incoming traceability checks (OEM serial verification).
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24h load test (95mA 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. How to verify the IC693ALG442’s input accuracy?
Use a loop calibrator to inject a 4-20mA signal into the module. Monitor the
%AIregisters in Proficy—values should match the input. If there’s a discrepancy, check the input range configuration or field wiring (shielded STP cable, ground to “GND” terminal).7. Can I use the IC693ALG442 for high-precision applications?
Yes. The 12-bit resolution (5μA/LSB for 4-20mA) is suitable for most industrial control tasks (e.g., valve positioning, VFD speed control). For higher precision, consider the IC693ALG442B (enhanced 16-bit resolution).
GE IC693ALG442
Critical Implementation Notes
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Wiring: Use shielded twisted-pair (STP) cable for field connections to reduce EMI. Ground the shield to the module’s “GND” terminal.
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Power Budget: At 95mA/channel, a 10-channel system draws 950mA—ensure the PLC’s 5V DC backplane can supply 2A minimum.
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ESD Protection: Use grounded wrist straps during installation. The module’s CMOS inputs are sensitive to >50V ESD.
For further assistance, contact GE Fanuc’s technical support or an authorized distributor. Refer to the Series 90-30 PLC user manual for model-specific instructions.
