ABB NDCU-21C
1. Overview
The ABB NDCU-21C is a drive control unit manufactured by ABB, belonging to the ACS series. It is designed to control the speed and torque of AC motors, and is classified as a high-performance drive control unit. As a compact and modular Variable Frequency Drive (VFD), it is widely used in the field of industrial automation, such as conveyors, pumps, fans, machine tools, and more. Its design goal is to provide precise motor control and energy-saving effects, making it suitable for a variety of industrial scenarios.
2. Parameters
Basic Parameters: The voltage range is 380-690 V AC, the power ranges from 0.75 kW to 7.5 kW, and the frequency range is 0-60 Hz. The control modes include speed control, torque control, and position control.
Communication and Interfaces: It supports Modbus and Ethernet communication, and some models are equipped with RS485 and CAN interfaces.
Protection Class: It has an IP67 protection class.
Other Parameters: The input voltage is 24V DC (for some models), the rated current is 20A, and the weight is approximately 1.4 kg.
3. Product Features
Functions: It integrates PLC functions, frequency converter control, and protection functions (including overcurrent, overvoltage, and overheating protection).
Performance: It delivers high-precision control, a wide speed range, and supports multiple control modes.
Modular Design: It supports modular expansion and can be connected to CANopen devices.
4. Structure and Composition
Hardware Composition: Featuring a compact design, it includes analog/digital input and output interfaces, communication interfaces, relay outputs, and other components.
Modularity: It can be combined with other modules, such as NAMC-21C and NIOC-01C, for extended functionality.
5. Application Fields
Industrial Automation: It is widely applied in conveyors, pumps, fans, machine tools, food processing equipment, robots, machinery, and other industrial equipment.
Specific Scenarios: It is suitable for industrial automation control systems, motor control systems, and servo drive systems.
6. Installation and Maintenance
Installation: Installation should be carried out according to specific application scenarios, and some models support modular expansion to meet diverse installation needs.
Maintenance: Detailed maintenance procedures are not clearly specified in the data. However, for second-hand products, attention should be paid to relevant installation precautions during the setup process.
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