IS200MACC1ACC is a GE Mark VI/Mark VIe series circuit board associated with the MACC (Main Analog Control/Conditioning) hardware family. It is used for front-end signal conditioning and interfacing within GE turbine control and power-conversion applications.
The board is designed to condition incoming field signals before they are processed by the associated control electronics. Depending on the system configuration, MACC hardware can be used with analog measurement and control signals where filtering, scaling, isolation, and signal preparation are required.
For replacement work, the complete board number IS200MACC1ACC should be matched. GE IS200 boards can have closely related model numbers with different electrical functions or revisions, so visual similarity alone is not enough for substitution. GE Mark VI/VIe documentation also distinguishes individual application boards by their specific signal-conditioning functions.
Product Datasheet
| Item | Specification |
|---|---|
| Model | IS200MACC1ACC |
| Brand | General Electric (GE) |
| Series | Mark VI / Mark VIe |
| Product Type | MACC Front-End Signal Conditioning Board |
| Main Function | Analog Signal Conditioning / Interface |
| Application | Turbine & Industrial Control |
| Signal Processing | Filtering, conditioning and signal interfacing |
| Control Platform | GE Speedtronic Mark VI / Mark VIe |
| Board Format | Industrial PCB |
| System Interface | Application-dependent |
| Configuration | System dependent |
| Hardware Revision | C |
| Board Assembly | IS200MACC1ACC |
| Installation | GE control cabinet / compatible system assembly |
| Dimensions | Approx. 28 × 21 × 3 cm* |
| Weight | Approx. 0.5–0.8 kg* |
| Country of Origin | USA* |
*Dimensions, weight, and detailed electrical characteristics should be confirmed from the actual nameplate and system documentation. Public references for individual GE IS200 boards can vary by revision and measurement method.
Typical Applications
- GE Mark VI / Mark VIe turbine control
- Gas turbine automation
- Steam turbine control
- Generator and excitation systems
- Analog field-signal conditioning
- Industrial power-control equipment
- Legacy GE control-system maintenance
Installation & Use
- Verify the part number — Confirm IS200MACC1ACC, including the full suffix and board revision.
- Power isolation — Shut down and isolate the associated control cabinet before removing the PCB.
- Inspect connectors — Check backplane/interface connectors for bent pins, oxidation, contamination, or mechanical damage.
- Signal verification — Confirm the existing field wiring and signal ranges before connecting the replacement board.
- Power-up inspection — Check system diagnostics and associated controller status after installation.
- Functional test — Verify the conditioned input signals and downstream control values against the approved system baseline.
⚠️ Replacement note: Do not substitute another MACC or similarly sized GE IS200 board solely on appearance. The exact suffix, hardware revision, terminal arrangement, and system configuration should all match before installation. GE Mark VIe systems contain application-specific signal-conditioning boards, and their functions are not interchangeable by form factor alone.
