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System Manual – MOVIDRIVE® compact Drive Inverters
12
Extended storage
Service
12.4
Extended storage
If the unit is being stored for a long time, connect it to the mains voltage for at least 5
minutes every 2 years. Otherwise, the unit’s service life may be reduced.
Procedure when maintenance has been neglected:
Electrolytic capacitors are used in the inverters. They are subject to aging effects when
deenergized. This effect can damage the capacitors if the unit is connected using the
rated voltage after a longer period of storage.
If you have not performed maintenance regularly, SEW-EURODRIVE recommends that
you increase the supply voltage slowly up to the maximum voltage. This can be done,
for example, by using a variable transformer for which the output voltage has been set
according to the following overview. We recommend that you increase the voltage from
0 V to the first stage after a few seconds.
The following stages are recommended:
AC 400/500 V units:
•
Stage 1: AC 350 V for 15 minutes
•
Stage 2: AC 420 V for 15 minutes
•
Stage 3: AC 500 V for 1 hour
AC 230 V units:
•
Stage 1: AC 170 V for 15 minutes
•
Stage 2: AC 200 V for 15 minutes
•
Stage 3: AC 240 V for 1 hour
After you have completed the regeneration process, the unit can be used immediately
or stored again for an extended period with maintenance.
12.5
Waste disposal
Dispose of materials separately in accordance with the current regulations in force, for
example:
•
Electronics scrap (circuit boards)
•
Plastic (housing)
•
Sheet metal
•
Copper
Summary of Contents for MOVIDRIVE compact MCH41A
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