21.F4.C0K-3420
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The 21.F4.C0K-3420 frequency inverter efficiently controls three-phase AC motors, offering precise speed regulation via PWM technology. It ensures stable operation even with voltage fluctuations with an input voltage range of 305-500V.
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Product Description:
The frequency inverter 21.F4.C0K-3420 from KEB is designed to regulate the speed of three phase AC motors efficiently. This device provides precise control with multiple I/O options. It features a broad input voltage range and robust protection for reliable operation.
The 21.F4.C0K-3420 frequency inverter is engineered for seamless integration into industrial motor control systems. It operates effectively in a wide range of electrical environments with a mains voltage range of 305 to 500 V (nominal 400 V). This inverter is designed to work with a nominal frequency of 65/60 Hz and offers ± 2 % tolerance to ensure stable operation even with slight variations in input conditions. The device is housed in a protective IP35 enclosure which safeguards it from dust and moisture for harsh industrial environments. Its maximum allowable relative humidity is 95 % without condensation. The model operates based on pulse width modulation (PWM) technology to offer stepless speed regulation of three phase AC motors. This enables smooth and efficient motor control which is critical for reducing energy consumption and extending motor life. The DC-voltage link design further enhances the inverter’s efficiency.
The F4 Combivert frequency inverter series module features a comprehensive set of programmable I/O options for flexible integration into various control systems. It includes two programmable transistor outputs, one programmable relay output and six programmable digital inputs that allow for easy customization and industrial automation. There are two analog outputs for precise control of external devices as well as two differential voltage inputs for advanced measurement applications. The inverter also has two voltage outputs to supply auxiliary equipment with separate power supply for added reliability. It includes one non adjustable digital input to handle fixed control tasks.
Frequently Asked Questions about 21.F4.C0K-3420:
Q: What input voltage range does the KEB 21.F4.C0K-3420 frequency inverter support?
A: The KEB 21.F4.C0K-3420 supports an input voltage range of 305 to 500 V with a nominal value of 400 V. This wide range ensures stable operation even with fluctuating electrical environments.
Q: How does the KEB 21.F4.C0K-3420 provide motor speed control?
A: The 21.F4.C0K-3420 uses pulse width modulation (PWM) technology for precise speed regulation. This method enables stepless motor control, ensuring smooth operation and energy efficiency for three-phase AC motors.
Q: What environmental protection features does the KEB 21.F4.C0K-3420 offer?
A: The 21.F4.C0K-3420 comes in an IP35-rated enclosure for protection against dust and moisture. It is capable of operating in environments with up to 95% relative humidity without condensation.
Q: What I/O options are available with the KEB 21.F4.C0K-3420 frequency inverter?
A: The 21.F4.C0K-3420 offers a range of programmable I/Os, including two transistor outputs, one relay output, and six digital inputs. These provide flexible integration into industrial automation systems.
Q: What is the tolerance for input frequency in the KEB 21.F4.C0K-3420?
A: The 21.F4.C0K-3420 operates with a nominal frequency of 65/60 Hz and offers a tolerance of ±2%. This ensures stable performance even with minor fluctuations in input frequency.
