Switching On - Siemens SIMOTICS SD Operating Instructions Manual

If the design of the machine requires the converter to be assigned in a particular way, the
relevant information will be provided on the rating plate or an additional label.
Note
It may be necessary to perform additional checks and tests in accordance with the specific
situation on site.
7.3

Switching on

Measures for start-up
After installation or inspections, the following measures are recommended for normal start-
up of the machines:
● Start the machine without a load; to do this, close the motor starter protector and do not
● Check the mechanical operation for noises or vibrations at the bearings and bearing end
● If the motor does not run smoothly and/or there are any abnormal noises, switch it off and
● If mechanical operation improves immediately after the machine is switched off, then the
● If there are no problems with the machine's mechanical operation, switch on any cooling
Low-voltage motors
Operating Instructions, 05/2014, 5 610 00000 02 000
switch the machine off prematurely. You should limit how often you switch the machine
off while it is starting up and still running at a slow speed, for checking the direction of
rotation or the required dimensions, for example. Allow the machine to run to a standstill
before switching it back on again.
shields.
determine the cause as it slows down.
cause is magnetic or electrical. If mechanical operation does not improve immediately
after switching the machine off, then the cause is mechanical, such as an imbalance in
the electrical machines or in the driven machine, inadequate alignment of the machine
set, operation of the machine with the system resonating (system = machine + base
frame + foundation, etc.).
devices that are being used and continue to monitor the machine for a while during no-
load operation.
Commissioning
7.3 Switching on
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