NORDAC SK700E-401-340-A modular frequency inverter

Product Overview
The NORDAC SK700E-401-340-A is a frequency inverter from the NORDAC SK 700E series. It provides precise motor speed regulation and flexible control functions for automated machinery, allowing motors to operate according to different production requirements. The inverter is designed for use with three-phase 400 V motor systems and supports reliable operation in a wide range of industrial environments. The SK700E-401-340-A is equipped with integrated functions including an EMC filter, motor brake controller, optional brake chopper connection, PTC motor temperature monitoring input, and process controller functions such as PID control. The inverter supports multiple parameter sets and optional communication modules, allowing integration into different automation systems and fieldbus networks.

Installation Information

The NORDAC SK700E-401-340-A must be installed and commissioned by qualified personnel with knowledge of electrical drive systems and industrial automation equipment. Before installation work is started, the power supply must be disconnected and the required waiting time must be observed to ensure safe handling of the frequency inverter. Adequate clearance around the device is required to allow proper airflow and reliable cooling during operation. For electrical connection, the SK700E-401-340-A should be connected according to the wiring instructions provided in the NORDAC SK 700E operating manual. The mains connection, motor connection, control terminals, and optional interfaces must be wired correctly before commissioning. The inverter and connected control components must be properly grounded to ensure safe operation and compliance with EMC requirements. During installation, motor cables and control or encoder cables should be routed separately where required, and suitable wiring practices should be to reduce electromagnetic interference. All connections should be checked carefully before the inverter is energized. After power-up, verify the operating status and parameter settings before placing the drive system into normal operation. 

Parameter

Model: SK700E-401-340-A modular frequency inverter 
Power Rating (Motor Power): 4.0 kW (5.5 HP)
Mains Frequency Range: 47 Hz - 63 Hz
Output Frequency Range: 0.0 Hz - 400.0 Hz
Output Voltage Range: 3-Phase 0V to Maximum Input Voltage
Efficiency Rating: Approximately 95%
Protection Class: IP20 (Cabinet installation required)

Application areas

• Pump and Fan Applications–The inverter can be used in industrial pump and ventilation systems where motor speed adjustment is required to match process demands. Its variable frequency control helps provide flexible motor operation for equipment requiring continuous speed regulation.
• Machine Automation Equipment–Applied in automated machinery where accurate motor control and repeatable movement are needed. The SK700E series supports applications requiring parameter adjustment, multiple operating configurations, and integration with industrial control systems.
• Production and Processing Machinery–Used in manufacturing equipment and production systems that require reliable three-phase motor control. The inverter supports industrial machines with constant load requirements and provides stable operation during continuous production processes.

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