The ABB NAMC-11C 64008757 is a high-performance CPU board designed for use in ABB variable frequency drives (VFDs). Serving as the central processing unit within the drive system, the NAMC-11C executes critical control algorithms, manages communication between subsystems, and interfaces with external control networks. It is an integral component in motor control systems where efficiency, precision, and system integration are essential.

Engineered for reliability in industrial environments, the NAMC-11C offers a compact form factor with powerful onboard processing. It ensures stable VFD operation by managing real-time processing of feedback signals, operational parameters, fault diagnostics, and drive configuration logic. As part of ABB’s well-established drive control platform, the board contributes to optimized energy consumption, smooth torque delivery, and extended motor lifespan.

This CPU board is widely applied in automation systems across industries such as water treatment, HVAC, oil and gas, manufacturing, and heavy machinery control.

Product Parameters

Product Applications

The NAMC-11C CPU board is employed in a wide variety of motor control and automation systems where reliable logic processing and drive operation are critical:

• Variable Frequency Drives (VFDs): Acts as the core controller for motor speed, torque, and operational logic.

• Water Treatment Plants: Controls pump operations and process motor functions with precision.

• HVAC Systems: Enables smooth fan and compressor control to optimize energy use and comfort.

• Oil & Gas Applications: Provides consistent motor operation for drilling and pumping systems in remote or hazardous locations.

• Manufacturing Automation: Drives conveyor belts, mixers, and other process equipment with accurate control feedback.

• Cranes and Hoists: Coordinates motion control with torque regulation and load response capabilities.

Product Advantages

• Compact and Lightweight: At only 0.0907 kg and 150 × 120 × 25 mm, it’s easily integrated into existing VFD enclosures.

• High Processing Efficiency: Capable of handling real-time motor control tasks, including vector and torque control.

• Enhanced Compatibility: Designed to work with a range of ABB inverter systems, simplifying parts standardization.

• Reliable Operation in Harsh Environments: Wide temperature and humidity tolerance ensures performance in industrial conditions.

• Firmware Upgradable: Offers field-upgradeable firmware for extended functionality and lifecycle.

• Integrated Communication: Provides seamless data transfer within the VFD and external systems (e.g., SCADA, PLCs).

• Stable Drive Operation: Ensures accurate parameter calculation and feedback processing for smooth motor response.

• Built-in Safety Features: Includes overvoltage detection, fault logging, and error handling mechanisms.

Frequently Asked Questions (FAQ)

Q1: What is the function of the NAMC-11C in a VFD system?

A1: It serves as the main CPU, processing control logic, managing I/O, and ensuring smooth motor operation.

Q2: What are the physical dimensions and weight of the NAMC-11C?

A2: It measures 150 × 120 × 25 mm and weighs 0.0907 kg.

Q3: Can the NAMC-11C be upgraded with new firmware?

A3: Yes, it supports firmware upgrades via external interfaces.

Q4: Is this CPU board compatible with all ABB inverters?

A4: It is compatible with select ABB inverter platforms. Compatibility should be verified before integration.

Q5: How is the NAMC-11C installed?

A5: It is installed in a dedicated CPU slot within the inverter’s internal PCB stack.

Q6: What types of motor control does it support?

A6: It supports vector control, torque control, and V/f (voltage/frequency) control.

Q7: Does the NAMC-11C interface with external control systems?

A7: Yes, it supports communication via RS485, CAN, and internal VFD protocols.

Q8: Is the CPU board affected by harsh industrial environments?

A8: It is designed to operate between -20°C and +60°C and in high-humidity conditions.

Q9: What are the protection features included?

A9: It includes fault logging, thermal protection, and overvoltage detection.

Q10: Does the board support analog and digital signal processing?

A10: Yes, though I/O handling may require external expansion modules depending on system architecture.