8000m Series
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06
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2. Thermal Overload Protection of the Motor
When the rated capacity of inverter is larger than that of the motor,
install thermal overload relay for the motor or regulate the motor
protection parameters of the inverter.
3. Consider the Bearing Capability of the Load
The inverter can provide output frequency from 0 Hz to 600 Hz. If
the motor needs to work at over 50 Hz, user should consider the
bearing capability of the load.
4. Avoid Mechanical Resonance Frequency
Regulate the skip frequency parameter of the inverter to avoid
mechanical resonance frequency of the load.
5. Prohibition of Installation of Phase Advancing Capacitor
If a phase advancing capacitor or surge suppressor is connected in
order to improve the power factor, it may become overheated and
damaged by inverter high harmonic components. Also, the inverter
may malfunction because of over current.
6. Installation of Magnetic Contactor
If a magnetic contactor is installed at the power supply side, do not
use it to control the start of the inverter. If necessary, the time span
should be one hour or above. Otherwise frequent switching may
cause the inverter to malfunction.
If a magnetic contactor is installed between the output terminals and
motor (output side of the inverter), make sure there is no output of
