EMC Input Filter
Suppresses EMI and radio interference on the supply side of the drive, 100 kHz to 30 MHz.
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KEWO peripheral equipments are used in any AC drive installation that needs filtering, harmonic reduction or dynamic braking.
Suppresses EMI and radio interference on the supply side of the drive, 100 kHz to 30 MHz.
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Suppresses EMI and radio interference on the motor side of the drive, 100 kHz to 30 MHz.
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Converts the PWM output into a near sine wave, protecting motor insulation on long cable runs.
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Limits the rate of voltage rise at the motor terminals to protect the winding insulation.
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Consumes regenerated energy on the DC bus during fast deceleration so the drive does not trip on over voltage.
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Wire wound resistor for dynamic braking duty with the DC braking unit.
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Aluminium enclosed braking resistor for compact panel mounting.
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Reduces supply side harmonics and protects the drive from voltage surges on the incoming line.
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Compensates cable capacitance on long motor runs and reduces motor side current spikes.
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DC bus reactor for harmonic reduction and improved power factor on higher power drives.
View Product ›Choosing a model: size the unit to motor or pump current, not only to kW, and check the supply voltage and the enclosure rating the site needs. Send the nameplate data and we will confirm the model.
FAQ
A dv/dt filter limits the rate of voltage rise at the motor terminals and protects the winding insulation. For the longest runs a sine wave filter converts the PWM output into a near sine wave and is the stronger solution.
The input filter stops interference passing between the supply cable and the drive. The output filter does the same on the motor side. Both work over roughly 100 kHz to 30 MHz.
When the application has to stop fast — centrifuges, wire drawing machines, cranes and elevators. During rapid deceleration the motor regenerates and the DC bus voltage rises. The braking unit and resistor consume that energy so the drive does not trip on over voltage.
Up to 2000 m altitude at full current, derating 2 percent per additional 100 m. Working temperature -25 °C to 45 °C, relative humidity not over 90 percent, no hazardous gas and no inflammable or explosive material, with adequate ventilation.
Send the model, the quantity and the supply voltage, or just describe the application and let an engineer pick the model.