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Operating Instructions – MOVITRAC® B
7
SEW electronics service
Service / list of faults
7.3
SEW electronics service
7.3.1
Hotline
Call the Drive Service Hotline to talk to an SEW-EURODRIVE service specialist on 365
days a year, 24 hours a day.
Simply dial the prefix
0800
and then enter the key combination
SEWHELP
. Or simply
dial
0800 739 4357
.
7.3.2
Send in for repair
Contact
SEW Electronics Serviceif you cannot rectify a fault
.
Always specify the unit status code number when you contact the SEW electronics ser-
vice so that our service personnel can assist you more effectively.
Provide the following information when sending the unit in for repair:
• Serial number (see nameplate)
• Type designation
• Short description of the application (application, control via terminals or serial)
• Connected motor (motor voltage, star or delta connection)
• Nature of the error
• Peripheral circumstances
• Your own presumptions as to what has happened
• Unusual events preceding the problem
7.4
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
de-energized. 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 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 ac-
cording to the following overview. SEW-EURODRIVE recommends that you increase
the voltage from 0 V to the first stage after a few seconds.
SEW-EURODRIVE recommends the following stages:
AC 400/500 V units:
• Step 1: AC 350 V for 15 minutes
• Step 2: AC 420 V for 15 minutes
• Step 3: AC 500 V for 1 hour
AC 230 V units:
• Step 1: AC 170 V for 15 minutes
• Step 2: AC 200 V for 15 minutes
Summary of Contents for Movitrac B
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