Description

IS220PDIOH1B Discrete I/O Pack

Technical Specifications

• Product Model: IS220PDIOH1B
• Brand: GE Vernova
• Warranty: One Year
• Input Voltage: 22.5‑28.6 VDC IONet pack supply
• Operating Temperature: ‑40 °C ~ +70 °C
• Storage Temperature: ‑40 °C ~ +85 °C
• Response Time: Discrete‑I/O scan cycle ≤1 ms
• Protection Class: IP20 field‑mount I/O pack
• Accuracy Class: Discrete‑signal‑processing grade
• Output Frequency: Not applicable
• Rated Current: 330 mA typical power consumption
• Channels: Mixed discrete‑input and discrete‑output channels for contact‑status acquisition and logic‑drive‑output
• Communication: Dual RJ45 IONet SRTP redundant Ethernet ports
• System Compatibility: GE Mark VIe turbine‑control‑system; mates with PDIO‑series terminal‑base
• Redundancy: Supports simplex, duplex and TMR triple‑modular‑redundant configurations
• Isolation: Galvanic isolation between field‑channels and control‑backplane
• Diagnostics: Input‑signal‑status, output‑circuit‑fault, module‑health and network‑link LED indicators
• Certifications: CE, UL, ATEX / IECEx Zone 2 approval
• Humidity: 5‑95 % RH, non‑condensing
• Weight: 0.36 kg
• Dimensions: 122 × 82 × 60 mm
• 

Product Overview

IS220PDIOH1B is a mixed discrete‑input / discrete‑output I/O pack for GE Mark VIe distributed‑I/O platform. It acquires field‑contact‑status signals from limit‑switches, auxiliary‑relay feedback‑contacts and interlock‑switches, and generates discrete‑logic‑drive outputs for solenoid‑valves, auxiliary‑equipment‑control‑relays and alarm‑annunciation circuits. Dual‑port redundant IONet Ethernet links deliver fault‑tolerant communication to Mark VIe main‑controller. Widely deployed for gas‑turbine and steam‑turbine auxiliary‑equipment‑sequence‑control and interlock‑signal‑handling. Obsolete automation spare hardware available as refurbished and surplus tested units for legacy power‑plant‑control‑system maintenance‑work.

Application Notes

‑ Mount onto matching PDIO‑series terminal‑base assembly; observe strict ESD anti‑static handling rules. ‑ De‑energise field discrete‑circuit power before terminal‑base wiring‑modification. ‑ Configure discrete‑channel‑parameters in ToolboxST engineering software. ‑ Typical deployment: power‑plant Mark VIe discrete‑I/O‑pack spare‑part stocking.