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  • GE IS220PPDAH1A
  • GE IS220PPDAH1A
  • GE IS220PPDAH1A

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GE IS220PPRAH1A Emergency Turbine Backup Protection I/O Module

In stock!
  • Part Number: IS220PPRAH1A
  • Brand: General Electric
  • Type: Emergency Turbine Backup Protection I/O Module
  • Dimensions: 6x13x8.3cm
  • Country of Origin: USA
  • Barcode: 8537101190

Additional Specifications

Color / Pattern
  • Black
Power Source
  • DC-powered
Communication Protocols
  • Ethernet
Controller Design
  • Compact
Tags: DCS , Emergency Turbine Backup Protection I/O Module , Mark VIe

Product Description

Description

Configured for overspeed protection and watchdog execution in Mark VIeS distributed turbine control systems, the GE IS220PPRAH1A, also cataloged as the IS220PPRAH1A Emergency Turbine Backup Protection I/O Module, provides direct physical and electrical signal processing.

Hardware Specifications

Parameter Specification
Model IS220PPRAH1A
Brand GE (General Electric)
Origin United States
Weight 1.2 kg
Dimensions 33.0 cm wide x 17.08 cm high
Operating Temp -20 deg C to +70 deg C
Power Consumption ≤ 15 W
Input Power Supply Voltage 24 VDC
Number of Transducers 2
Pressure Wave Frequency Range 1.5 Hz
Number of Input Channels 16
Input Voltage 0-5 V
Maximum Lead Resistance 15 ohm maximum
MPU Pulse Rate Range 2 Hz
Protocols Supported MODBUS TCP/IP
Mounting Type Surface-mount

Profinet / EtherNet/IP Deterministic Networks

The IS220PPRAH1A integrates into the Mark VIeS backplane with deterministic communication protocols. Profinet and EtherNet/IP ensure synchronous data exchange between PPRA I/O packs and supervisory controllers. This deterministic behavior minimizes latency in trip signal propagation and maintains predictable cycle times across redundant channels. I/O density scaling is achieved by distributing six-speed inputs across three PPRA modules, with firmware flash compatibility maintained for synchronized updates.

Frequently Asked Questions (FAQ)

Q: Does the IS220PPRAH1A support hot-swap replacement during turbine operation? A: No. Removal or insertion under load is not supported; modules must be powered down before replacement.

Q: What is the typical switching delay in TMR redundancy mode? A: The module executes failover with deterministic cycle timing; switching delay is bounded by the backplane bus cycle, not exceeding one scan interval.

Q: Is firmware upgrade backward compatible with PPRO modules? A: Yes. The PPRA firmware is derived from PPRO, with compatibility maintained for shared configuration variables and behavior.

Field Installation Guidelines

  • Ensure shielded cabling for all speed sensor inputs, with shields terminated at the TREA terminal board ground.
  • Maintain separation between high-voltage trip contacts and low-level sensor wiring to reduce cross-talk.
  • Observe maximum lead resistance limits (≤ 15 ohm) to prevent signal attenuation.
  • Secure surface-mount installation with full mechanical engagement to avoid vibration-induced loosening.
  • Verify MODBUS TCP/IP connectivity with deterministic network configuration before commissioning.
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