![SCOV SV800 Series Скачать руководство пользователя страница 224](http://html.mh-extra.com/html/scov/sv800-series/sv800-series_user-manual_1219567224.webp)
8 Fault and maintenance SV800/SV800A User Manual
216
8.4 Maintenance
8.4.1 Daily and periodic inspection
The influence of the ambient temperature, humidity, dust and vibration will cause the aging of
the devices in the inverter, which may cause potential faults or reduce the service life of the
inverter. Therefore, it is necessary to carry out routine and periodic maintenance.
Table 8-3 Daily and Periodic Inspection Items of the Inverter
Frequency
Check contents
Daily
inspection
Check whether the inverter cooling fan abnormal or not and the air duct blocked or not.
Confirm the installation environment of the inverter and the input voltage is within the
allowable range.
Check whether the motor temperature rising is normal.
Periodic
inspection
Make sure that there are garbage, dirt and dust deposits on the surface of the inverter
Confirm whether the insulation layer of power cable and signal cable is aging or cracking.
Confirm that the mechanical installation of the inverter and motor is firm.
Confirm that the connection between the inverter and motor terminals is firm.
Confirm that the insulation resistance of inverter and motor is up to standard.
8.4.2 Wearing parts replacement
The wearing parts of the inverter mainly include cooling fans and electrolytic capacitors for
filtering. Its life is closely related to the environment and maintenance conditions. The general
life time as follows:
Table 8-4 fans, electrolytic capacitor life tables
Device Name
Life time
Remarks
Fan
About 5 years
The fans vibrate and abnormal noise should be changed
into account
Electrolytic
capacitor
About 5 years
Leakage of electrolytic capacitor, protrusion of safety valve
and change of capacitance value
8.4.3 Inverter storage
After the user purchases the inverter, the following points must be noted for temporary storage
and long-term storage:
1) Store as much as possible in the original packaging with good ventilation.
2) The whole machine is not allowed to be placed in humid, high temperature or outdoor
exposure places for a long time.
3) Long-term storage will cause the deterioration of electrolytic capacitors. It must be ensured
that it is energized once within one year and the energized time is not less than 1 hour. The input
voltage must be slowly increased to the rated value with a voltage regulator.