Description
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Product Model | AAP3798102-00030 |
| Manufacturer | Cooper Compression / Cameron |
| Product Type | Main Logic Module (MLM) |
| Product Family | Maestro Compressor Control |
| Primary Application | Compressor control system |
| System Role | Main logic and control processing |
| Associated Equipment | TA-series compressor control systems |
| Related HMI | AAP3798102-00031 User Interface Module |
| Installation | Dedicated Maestro control-system assembly |
| Function | Compressor sequencing, control logic, monitoring, and protection coordination |
Important: Publicly available documentation confirms the module’s identification and system role, but does not provide enough reliable information to state detailed electrical specifications such as exact supply voltage, CPU architecture, memory size, communication protocol, or environmental ratings. Those values should be verified against the equipment-specific OEM documentation before installation.
Product Introduction
The Cooper AAP3798102-00030 is the Main Logic Module used in Maestro compressor control equipment. It occupies the central control role within the compressor package, coordinating programmed operating sequences and information exchanged with associated control components. Documentation for TA-2000 equipment explicitly lists AAP3798102-00030 as the MLM.
For maintenance teams, the value is straightforward: this is a system-specific control component, not a generic PLC replacement. The correct application depends on the installed compressor package, control configuration, and associated modules. Match the complete part number before replacement.

AAP3798102-00030
Application Scenarios & Field Pitfalls
Engineering Pain Point
A compressor control fault can stop an entire package even when the mechanical equipment itself is healthy. When the main logic hardware fails, troubleshooting often gets complicated because the symptoms can appear as startup-sequence faults, unavailable interlocks, abnormal permissives, or communication problems between the operator interface and control hardware. A replacement MLM therefore needs to be treated as a configured compressor-control component, not simply another circuit board.
Typical Applications
- Natural Gas Compression — Compressor package sequencing, permissive handling, and operating control.
- Pipeline Compression — Control logic for compressor stations and associated auxiliary equipment.
- Oil & Gas Production — Compressor package monitoring and protective control.
- Process Compression — Legacy Maestro-based compressor control cabinets requiring replacement logic hardware.
Technical Pitfalls to Avoid
- Do not confuse the MLM with the User Interface Module.
AAP3798102-00030 is identified as the Main Logic Module, while AAP3798102-00031 is identified as the User Interface Module in TA-2000 control-center documentation. They perform different jobs and should not be treated as interchangeable. - Verify the exact compressor control configuration.
The AAP3798102 family contains several different module numbers. The suffix is significant. Do not substitute another variant merely because the base number looks similar. - Check the system documentation before power-up.
Confirm the module position, associated interface hardware, wiring, and control configuration against the machine documentation. A logic-module replacement can expose configuration or compatibility problems that were not visible during the original hardware failure. - Perform a functional sequence test.
After replacement, do not stop at a successful power-up. Verify permissives, start/stop sequencing, alarm handling, actuator commands, and shutdown functions under controlled commissioning conditions.
Related Products
- — User Interface Module (UIM) associated with the same Maestro compressor-control architecture. It provides the operator-interface function rather than the main logic-processing role.
- — User Interface Module identified for certain TA9000 control-center configurations. It serves the operator-interface side of the system and should not be substituted for the -00030 MLM.
- — Main Logic Module identified for certain TA9000 configurations. It belongs to the same broader control family, but the equipment configuration must be checked before considering it as an alternative.
- — Display cable used between the UIM and MLM in documented TA9000 configurations. It is a supporting interconnection component rather than a control processor.
- AAP0540101-00039 — 24 VDC power supply listed with the TA2020 control-center components. It supports the control assembly rather than replacing the MLM.
- AAP3403893-00416 — Vibration transmitter used as part of the documented compressor-control instrumentation package. It provides vibration measurement; the -00030 remains the main logic component.
- AAP0540089-00210 — Pressure transmitter listed among TA-series control components. It supplies process-pressure measurement to the compressor control system rather than performing logic processing.
- AAP1794654-00038 — Overload relay used in the documented TA2020 control-center assembly. It provides motor protection at the electrical-control level and is complementary to the MLM.
