GE IS220PAICH1A

Product Overview

The GE IS220PAICH1A is a dedicated analog input module for GE’s Mark VIe gas turbine control system, serving as a key signal acquisition component in the Speedtronic™ series. This module provides 8 channels of high-precision analog input and supports multiple industrial signal types, including:

• Thermocouples (Type K/J/E/T)
• RTDs (PT100/PT1000)
• Voltage signals (±10V/0-10V)
• Current signals (4-20mA/0-20mA)

The IS220PAICH1A features a dual isolation design (between channels and system side) and EMC protection certified by IEEE 1613, ensuring reliable operation in harsh industrial environments such as power plants and oil/gas fields. It communicates with the Mark VIe controller via the PDH (Process Data Highway) fiber optic network, with a sampling rate of 100ms per channel, making it suitable for monitoring critical parameters of gas turbines, such as temperature, pressure, and flow.

Product Parameters

• Product Model: IS220PAICH1A
• Manufacturer: GE Energy (Mark VIe series)
• Product Type: Multifunctional analog input module
• Input Channels: 8 channels (signal type configurable via software)
• Thermocouple Measurement: Type K/J/E/T with cold junction compensation (CJC)
• RTD Measurement: 2-wire/3-wire PT100/PT1000 with ±0.1℃ accuracy
• Voltage Measurement: ±10V/0-10V with 16-bit resolution
• Current Measurement: 4-20mA (250Ω load) with 0.05% accuracy
• Isolation Voltage: 1500V AC (between channels), 1000V AC (system side)
• Operating Temperature: -40°C ~ +70°C
• Communication Interface: Dual redundant PDH fiber optics (100Mbps)
• Power Consumption: 5W (powered by 24V DC)
• Compatible Systems: GE Mark VIe / EX2100e
• MTBF: 300,000 hours (per IEC 61709)

Structure and Composition

• Signal Conditioning Layer:
  • Each channel is equipped with an independent 24-bit Σ-Δ ADC, supporting synchronous sampling.
  • Thermocouple inputs include a cold junction compensation circuit (±0.5℃ accuracy).
  • 4-20mA inputs integrate precision sampling resistors (0.01% tolerance).
• Isolation and Protection Layer:
  • Optocoupler isolation + DC/DC power isolation to eliminate ground loop interference.
  • Each channel features a TVS diode (600W) and a self-resetting fuse.
• Communication and Power Layer:
  • Connects to the PDH network via ST fiber optic interfaces (dual-ring redundant topology).
  • Supports dual 24V DC power inputs (redundancy switching time <10ms).

Key Features and Advantages

• Single module supports thermocouples/RTDs/voltage/current, reducing spare part types.
• Signal types configurable via software (no jumpers required).

• Certified for anti-interference by IEEE 1613/IEC 61800-3.
• Inter-channel isolation prevents cross-interference.

• Real-time detection of wire breakage, short circuits, and over-range faults.
• Generates predictive maintenance reports via ToolboxST.

• Automatic module type recognition (plug-and-play).
• Seamless integration with CIMPLICITY HMI.

Related Products

• IS220PDIAH1A: Digital input module for switching signal acquisition.
• IS200ERMG: PDH fiber optic communication card for network expansion.
• DS200TBCG1A: Terminal board for connecting field sensors.
• EX2100e: Excitation control system compatible with this module.
• IS215ACLEH1A: High-density analog input module (16 channels).

Installation and Maintenance

• Pre-Installation Preparation:
  • Clean PDH interfaces using a fiber optic end-face detector.
  • Confirm correct polarity of 24V power supply (reverse connection protection is limited to ±10V).
  • Install shielded twisted-pair cables for thermocouples (e.g., Belden 8761).
• Maintenance Recommendations:
  • Calibrate annually (Fluke 744 process calibrator recommended).
  • Regularly check fiber optic connector attenuation (<3dB).
  • Back up configurations via ToolboxST when replacing modules.

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Consult now to obtain the latest technical information and quotation for GE modules!

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