T
2
F
undamental
safet
y
instrutions
a blocking of the inductor, that means that after termination of the sudden movement the drive is in a steady-
state. A starting of the drive is impossible.
If a machine with synchronous motor is planned, the possible sudden movement must be considered. It can
lead to a dangerous movement. The mechanical engineer therefore must make a safety estimation for the
residual movement.
NOTE
The only function of the safety relay is the prevention of an unexpected starting. The switching
of the safety relay during the rotation of the inductor of the motor causes an uncontrolled
„coasting“ of the machine, a braking with the help of the converter is not possible anymore.
WARNING
The following
may occur
, if you disregard these safety notes:
• serious personal injury
• death
The danger is:
electricity
. At the motor, as well as at the device at a switched-off safety relay there
can be mains voltage
.
If necessary put the device off-circuit, just like devices without a safety relay - the safety relay
does
not
switch the device and the motor off-circuit!
Turning off the safety relay has no isolation of the motor from the supply system as a con-
sequence. Therefore, mains potential can be both at the converter and at the motor. By
maintenance-, service- and repair works with electrical components of the driving system,
therefore the protection from electrical dangers has to be assured with other means (e.g. using
the mains switch).
28
Instrution
Manual
b
maXX®
BM3400
from
206
Do
ument
No.:
5.07013.03
Baumueller
Kamenz
GmbH
Содержание b maXX BM3400 Series
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