Alpha AS600M Series, Руководство пользователя

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Chapter 8 Maintenance
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the time & leakage current settable and the similar capacity should be used. The test
may reduce the life of product. If the main circuit insulation test is to be done, the main
circuit terminals R, S, T, U, V, W, PB(P1), + and – etc should be short-circuited
reliably and then the meg-ohmmeter with the near voltage grade (250V for 220V, 500V
for 380V, and 1000V for 660V) should be used for measurement. The control circuit
should be measured with the resistance shift of the universal meter instead of the
meg-ohmmeter.
For the 380V main circuit, the ground insulation resistance should not be less
than 5 M Ω ; for the control circuit, the ground insulation resistance should not be less
than 3 M Ω .
8.1.3 Regularly-replaced Elements
To ensure the long-term and reliable operation of driver, regular care and
maintenance should be carried out for internal electronic elements of the driver. The
life of these electronic elements varies with the environment and conditions where
the drivers are used. Generally, if the driver is used continuously, the elements can
be replaced according to the following table, which also depends on the using
environment, load conditions and driver state, and other specific conditions.
As showed in Table 8-4, the maintenance term is just for user’s reference when it is
used.
Table 8-4 Replacement Time for Wearing Elements of Driver
Name of Element
Standard Years for Replacement
Cooling Fan 2~3 years
Electrolytic Capacitor 4~5 years
Printed Circuit Board 5~8 years
8.2 Storage and Protection
If the driver is not used immediately after purchased and has to be stored temporarily or
permanently, the following should be done:
 It should be put in the place within the specified temperature & humidity scope,
without damp, dust and metal dust, and with good ventilation.

If it is unused for over one year, the charging test should be conducted to restore
the characteristics of electrolytic capacitor of the main circuit. During charging,
the input voltage of the driver should be increased to the rating value slowly with
the voltage regulator. The energizing time should be at least 1~2 hours.

The above test should be conducted at least once a year.
The voltage withstand test cannot be conducted casually, as it will reduce the life
of driver and even damage the elements. For the insulation test, the 500V
mega-ohmmeter whose insulation resistance is not less than 4 M
Ω can be used.