About the IS220PPROH1A
Hardware Tips and Specifications
The IS220PPROH1A is a Turbine specific I/O module. It is designed to provide a direct interface to specific turbine field devices. This setup eliminates or reduces much of the previously needed instrumentation needed to make the connection to field devices, and also improves running reliability and reduces long term maintenance.
The IS220PPROH1A typically works with the TREAH_A terminal board and is used in Aeroderivative Turbine Emergency trip applications. The component can connect to either barrier or box type terminal blocks. The IS220PPROH1A has field wiring restrictions for voltage sensing that limits cable length to 1,000 feet of 18 AWG wiring. It is important to note the IS220PPROH1A cannot be auto-reconfigured when swapping a BPPB P-Pack with a BPPC P-Pack. The IS220PPROH1A is built with:
- a front faceplate that is marked with the component id number and several LED indicators
- placed on the front faceplate in pairs
- first pair is labeled PWR/ATTN
- the second LINK/TxRx and ENET 1
- the third LINK/TxRx and ENET2
- three speed signals
- deceleration
- acceleration
- overspeed
- hardware implemented overspeed
IS220PPROH1A Module Functionality
The pack monitors the status and operation of selected trip boards through a set of comprehensive feedback signals. The pack supports TMR and simplex back up protection. The IS220PPROH1A is built with a high speed processor and two fully independent 10/100 Ethernet ports. The pack has a hardware reset circuit and watchdog timer. Temperature is monitored by an internal sensor.
This IS220PPROH1A product in particular is not surrounded by any great amount of originally-pertinent instructional manual materials; probably a result of General Electric's concerted efforts to remove copyrighted material from infringing sources online. With this being the case, the IS220PPROH1A functional product number itself identifies a number of relevant IS220PPROH1A Board hardware specifications through its series of specially-designed functional naming components. For example, the IS220PPROH1A functional product number is started through the dual-functional IS220 series tag responsible for identifying this IS220PPROH1A product's special modular Mark VI Series assembly version as well as its domestic original manufacture location.
Some of the other relevant hardware specifications revealed in this manner include the IS220PPROH1A Board's PPRO functional acronym on top of its conformal PCB coating, group one Mark VI Series product grouping, and its A-rated functional product revision.
