8
Service
Extended storage
Operating Instructions – MOVITRAC
®
LTP-B
113
8.2 Extended storage
If the device is in extended storage, connect it to the line voltage for at least 5 minutes
every 2 years. Otherwise, the device'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 de-energized. This effect can damage the capacitors if the device is connected
directly to the nominal voltage after a longer period of storage.
If you have not performed maintenance regularly, SEW‑EURODRIVE recommends
that you increase the line 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.
The following graduations are recommended:
AC230V devices:
• Stage 1: AC 170V for 15 minutes
• Stage 2: AC 200V for 15 minutes
• Stage 3: AC 240V for 1 hour
AC 400V devices:
• Stage 1: AC 0V to AC 350V within a few seconds
• Stage 2: AC 350V for 15minutes
• Stage 3: AC 420V for 15minutes
• Stage 4: AC 480V for 1hour
AC 575V devices:
• Stage 1: AC 0V to AC 350V within a few seconds
• Stage 2: AC 350V for 15minutes
• Stage 3: AC 420V for 15minutes
• Stage 3: AC 500V for 15 minutes
• Stage 4: AC 600V for 1 hour
After you have completed the regeneration process, the device can be used immedi-
ately or stored again for an extended period with maintenance.
8.3 Waste disposal
Please observe current regulations. Dispose of the following materials in accordance
with the regulations in force:
• Electronics scrap (printed circuit boards)
• Plastic (housing)
• Sheet metal
• Copper
• Aluminum
25813137/EN – 08/2018