GE IS220PDIAH1A Discrete Contact Input I/O Pack

Product Description

GE IS220PDIAH1A is a PDIA discrete contact input I/O pack for GE Mark VIe Speedtronic turbine control system. It is an intelligent distributed I/O processor with dual IONet Ethernet ports, supporting up to 24 isolated dry contact input channels. This conformal coated pack provides 32VDC wetting voltage for field switches, paired with STCI / TBCIH series terminal boards to collect on-off status signals for turbine safety logic, and supports hot-swap and TMR redundant architecture.

Product Functions

• Acquire 24-channel optically isolated dry contact discrete input signals
• Supply built-in 32VDC contact wetting power for passive field switches
• 4ms hardware debounce filter to eliminate contact bounce interference
• Dual redundant 100Mbps IONet Ethernet communication with main controller
• Real-time channel fault diagnosis and status indication via onboard LED
• Support hot swap for online replacement without rack shutdown

Applications

• Gas turbine and steam turbine interlock, trip and protection signal collection
• Valve limit switch, circuit breaker and auxiliary equipment status monitoring
• Combined-cycle power plant Mark VIe control cabinet spare replacement
• Oil & gas turbomachinery safety shutdown and interlock control systems
• Retrofit and maintenance of legacy Speedtronic distributed control racks

FAQ