Precautions
●
Motor Insulation Inspection
Motor in use for the first time, placed a long time before re-use and periodic
inspection should be done, the motor insulation should be checked, to prevent the
motor winding insulation failure and damage to the inverter. To motor insulation check
connection separate from the inverter, 500V megger is recommended, should ensure
that the measured insulation resistance of not less than 5MΩ.
●Motor Thermal Protection
If the rated capacity of the motor Yes not match those of the inverter, especially
when the rated power of the inverter is higher than the rated power of the motor, be
sure to adjust the inverter motor protection parameter values , or thermal relay shall be
mounted for motor protection.
●Running with Frequency higher than Power Frequency
This inverter can provide output frequency from 0Hz to 3200Hz. If the customer is
required to run 50Hz above, consider the mechanical endurance of the device.
●Vibration of Mechanical Device
The inverter may encounter the mechanical resonance point at certain output
frequencies, which can be avoided by setting the skip frequency parameters in the
inverter.
●
Motor Heat and Noise
Since the output voltage of inverter is PWM wave and contains certain harmonics,
the temperature rise, noise and vibration of the motor comparing with the power
frequency will be increased slightly.
●
Use with the voltage different with the rated voltage
If the HV610C series inverter is used outside the allowable working voltage range
as specified in this manual, it is easily lead to the inverter devices damage. If needed,
use the corresponding boost or lower voltage transformer processing.
●
The output side with the pressure-sensitive devices or to improve the power factor
capacitor
Since the inverter output is PWM wave, the output side if installed with capacitors
to improve the power factor or lightning varistors. Easily lead to the inverter
instantaneous overcurrent or even damage the drive, do not use.
●
Switching Devices like Contactors Used at the Input and Output terminal
If a contactor is installed between the power supply and the input terminal of the
inverter, it is not allowed to use the contactor to control the startup/stop of the inverter.
Necessarily need to use the contactor control inverter start and stop of not less than an
hour. Frequent charge and discharge will reduce the service life of the capacitor inside
the inverter. If switching devices like contactor are installed between the output terminal
and the motor, should ensure that the inverter output off operation, otherwise easily lead
to the inverter module damage.
