Description
🔹 Product Description
The GE General Electric IS220PTCCH1A REV C is a PTCC Thermocouple Input Module designed for GE Mark VIe turbine control systems. It provides the electrical interface between thermocouple terminal boards and the distributed I/O control network, converting low-level thermocouple or mV signals into digital data for the control system. The module supports up to 12 thermocouple inputs per pack and can be deployed in simplex, duplex, and TMR configurations. Supported thermocouple types include E, J, K, S, and T, with an input span of approximately -8 to +45 mV.
🔹 Product Datasheet
| Parameter | Value |
|---|---|
| Brand | GE General Electric |
| Model | IS220PTCCH1A REV C |
| Series | Mark VIe |
| Product Name | Thermocouple Input Module |
| Place of Manufacture | USA |
| Product Status | New |
| Dimensions | Approx. 100 × 33 × 6 cm including packing/reference dimensions; verify actual unit |
| Weight | Approx. 1 lb / 0.45 kg |
| Origin | United States |
| Power | 28 VDC nominal, up to 0.16 A |
| Discontinued | Legacy / no longer a current-generation product |
🔹 Common Questions & Answers
Q: What is the IS220PTCCH1A REV C used for?
A: It is used for thermocouple temperature signal acquisition in GE Mark VIe turbine control systems.
Q: How many thermocouple inputs does one module support?
A: One IS220PTCCH1A pack supports up to 12 thermocouple inputs. Two packs can provide up to 24 inputs in applicable simplex configurations.
Q: Which thermocouple types are supported?
A: Common supported types include E, J, K, S, and T, with mV input capability of approximately -8 to +45 mV.
Q: What terminal boards are compatible?
A: GE documentation identifies compatible Mark VIe thermocouple terminal boards including IS200STTCH1A, IS200STTCH2A, IS200TBTCH1B, and IS200TBTCH1C.
Q: Can REV C be replaced by another revision?
A: Do not assume revisions are interchangeable. Match the complete part number, revision, terminal-board configuration, and system documentation before replacement.
Q: What should be checked if temperature readings are incorrect?
A: Check the thermocouple sensor, polarity, extension wiring, terminal-board connections, cold-junction compensation, module power, I/O network connections, and system diagnostics.
Q: What power supply does the module require?
A: GE documentation specifies approximately 28 VDC nominal, with a specified operating range around 27.4–28.6 VDC.
Q: Can it be used in a TMR system?
A: Yes. The IS220PTCCH1A is documented for simplex and redundant Mark VIe configurations, including TMR applications.
🔹 Recommended GE Models
- IS220PTCCH1B — Thermocouple Input Module
- IS220PRTDH1A — RTD Input Module
- IS220PSVOH1A — Servo Control I/O Module
- IS220PDIOH1A — Discrete Input/Output Module
- IS220PAICH1A — Analog Input Module
- IS220PGENH1A — Generator I/O Module
- IS220PTURH1A — Turbine I/O Module
- IS200TBTCH1B — Thermocouple Terminal Board
- IS200TBTCH1C — Thermocouple Terminal Board
- IS200STTCH1A — Thermocouple Terminal Board
- IS200STTCH2A — Thermocouple Terminal Board
- IS200TRTDH1C — RTD Terminal Board
- IS200TBAIH1C — Analog Terminal Board
- IS200TBAOH1D — Analog Output Terminal Board
- IS200TBQBG1A — Discrete Terminal Board
