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2.7.4 Storage of Driver
Upon acquiring the driver, the user shall pay attention to the following points
regarding the temporary and long-term storage of the driver:
1) Pack the driver with original package and place back into the packing box
of our company.
2) Long-term storage will degrade the electrolytic capacitor. Thus, the
product shall be powered up once every 2 years, each time lasting at least
five hours. The input voltage shall be increased slowly to the rated value
with the regulator.
2.8 Instructions on Warranty of Driver
Free warranty only applies to the driver itself.
1) Our company will provide 18-month warranty (starting from the
leave-factory date as indicated on the barcode) for the failure or damage
under normal use conditions. If the equipment has been used for over 18
months, reasonable repair expenses will be charged.
2) Reasonable repair expenses will be charged for the following situations
within 18 months:
a） The equipment is damaged because the user fails to comply with
the requirements of the user’s manual;
b） Damage caused by fire, flood and abnormal voltage;
c） Damage caused when the driver is used for abnormal function.
The service expenses will be calculated according to the standard of the
manufacturer. If there is any agreement, the agreement shall prevail.
2.9 Prototyping Guide
Three control modes are available, namely, V/F and VC.
When selecting driver, it must firstly make clear the technical requirements of
the system for variable frequency speed adjustment and specific details
regarding the applications and load characteristics of the driver, and select the
model and determine the operating mode through taking into overall
consideration the adaptable motor, output voltage, rated output current and
other factors.
The basic principle is that the rated load current of the motor shall not exceed
the rated current of the inverter. Generally, the selection is based on the
adaptable motor capacity as specified in the instruction manual. Due attention
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