Warranty Items - Veikong VFD500 Series User Manual

VFD500 high performance vector control frequency inverter user manual Appendix A Modbus communication protocol
Replacing
Spared parts
time
30000
fans
60000h
Electrolytic 40000
capacitor 50000h
50000
Relay
100000 times
The user can refer to the accumulated power-on time and accumulated running time recorded by the
inverter, and combine the actual operating conditions and the external environment to determine the
replacement period.
1) Possible reasons for the damage of cooling fan: bearing wear and vane aging. Distinguish standard:
Any cracks in the fan vanes, any abnormal vibration sound during the starting of frequency inverter.
2) Possible reasons for the damage of filter electrolytic capacitor: poor quality of the input power supply,
the environment temperature is high, the load change frequently and the electrolyte aging. Distinguish
standard: Any leakage of its liquid, if the safety valve is protruding, electrostatic capacitance and
insulation resistance measurement.

Warranty Items

8.3
1) Warranty only refers to frequency inverter.
2) Under normal use, if there is any failure or damage, our company is responsible for the warranty within
18 months. (Leave factory date is subjected to the S/N on the frequency inverter nameplate or according
to the contract). When over 18 months, reasonable fee will be charged for maintenance;
3) During the period of 18 months, if the following situation happens, certain maintenance fee will be
charged;
a. The users don't follow the rules in the manual lead to the frequency inverter damaged;
b. The damage caused by fire, flood and abnormal voltage;
c. The damage caused by using the frequency inverter for abnormal functions;
d. The relevant service fee is calculated according to the manufacturer's standard, if there is an contract,
then it is subject to the contract items.
For detailed warranty instructions, please refer to the Product Warranty Card.
Damaged reasons
～
Bearing wear, blade aging
Poor input power quality,
high ambient
temperature, low air
～
pressure, frequent load
changes, electrolyte
aging
Corrosion, dust affect
～
contact effect, contact
action is too frequent
- 140-
How to check
1, the blade has cracks
2 abnormal vibration, excessive
noise
1, there is liquid leakage
2, the safety valve protrudes
3, the capacitance value is beyond
the allowable range
4, insulation resistance is abnormal
5, DC bus voltage fluctuations are
too large
Contact ineffective