GE

1. Full Model & Model Breakdown

Full Model Name: GE IS220PDIOH1A Discrete Input/Output Module

Note: 336A4940CSP23 is the secondary spare part reference number for this board

• GE: Brand (Former GE Energy, currently part of Emerson)
• IS220: Series prefix for I/O boards of GE Mark VI turbine control system
• PDIO: Parallel Discrete Input Output, code for parallel discrete input/output module
• H1: Hardware version code
• A: Hardware revision suffix
• Discrete Input/Output Module: Digital Input and Output Module
• Mark VI: GE control platform for heavy-duty gas turbines and steam turbines
• 336A4940CSP23: Spare part reference number corresponding to the module; it identifies identical hardware as IS220PDIOH1A

IS220PDIOH1A is a standard discrete I/O board for Mark VI system. 336A4940CSP23 is an alternate spare part number for the same product.

2. Main Functions

1. Dedicated discrete input/output module designed for GE Mark VI turbine control system.
2. Discrete Input Channels: Collect external active/passive binary signals to monitor status of circuit breakers, disconnectors, local alarms and limit contacts.
3. Discrete Output Channels: Equipped with relay circuits to output binary control signals for alarm activation, interlock execution and status indication.
4. Converts field contact status into digital signals recognizable by main control boards, and outputs binary signals upon receiving commands from main controllers.
5. Provides channel fault diagnosis, including open-circuit and circuit abnormality detection. Fault data is transmitted to the controller via backplane.
6. Communicates with main control units over Mark VI backplane bus to exchange interlock, protection and status signals in real time.
7. Supplies discrete signal channels for the unit Emergency Trip System (ETS), equipment sequence control and safety protection logic.

3. Applications

1. Compatible with control systems of GE Mark VI gas turbine and steam turbine generator units.
2. Installed in turbine unit control cabinets of thermal power plants and combined-cycle power stations.
3. Collects position feedback signals of primary equipment, equipment fault alarms and contact signals from temperature & pressure switches.
4. Outputs control signals for audible & visual alarms, auxiliary equipment startup/shutdown and protection interlock loop operation.
5. Takes part in unit emergency protection, trip logic and auxiliary machinery sequence control.
6. Serves as common spare part for gas turbine control systems in power plants to replace faulty boards. It ensures reliable operation of safety interlock loops and prevents equipment misoperation, protection failure and unplanned unit shutdown.

Understand the lowest price, please contact via email: plcvarious@foxmail.com

More products: www.plcva.com

Many products are not yet on the shelves please contact us for more products.