The User Manual of JAC200 Series General Frequency Converter
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4) Operation above power frequency
This frequency converter will provide the output power which ranges from 0Hz to 3200Hz. If the user
requires operation above 50Hz, please consider the bearing capacity of mechanical device.
5) Vibration of mechanical device
The frequency converter may meet the mechanical resonance point of load device at the point of some
output frequency, which may be avoided by setting the hopping frequency parameter in frequency
converter.
6) Heat emission and noise of the motor
The output voltage of frequency convertor is PWM wave which contains certain harmonic, therefore,
the temperature rise, noise and vibration of the motor will be slightly increased if compared with the
operation in power frequency.
7) Pressure sensing device set in output side or the capacitor with improved power factor
The output of frequency converter is PWM wave. If the capacitor with improved power factor or the
pressure sensing device for lightning protection is mounted in the output side, the transient overcurrent
of frequency converter or any damage to the frequency converter may occur. Please never use.
8) The contactor and other switching devices used for input/output terminal of frequency converter
If the contactor is installed between power supply and the frequency converter, it is not allowed to start
or stop the frequency converter by this contactor. If the frequency converter must be started or stopped
by the contactor, the interval shall be at least one hour. The frequent charging and discharging may
reduce the service life of the capacitor in the frequency converter. If the contactor and other switching
devices are installed between the output terminal and the motor, the frequency converter shall be
started or stopped when there is no output, or else, the module in the frequency converter may be
damaged.