Switch On; Table 7-1 Minimum Radial Forces - Siemens SIMOTICS DC 1GH6 Operating Instructions Manual

Commissioning

7.5 Switch on

Table 7-1 Minimum radial forces
Type 1G.6 16. 1G.6
1H.6 18.
NU2 1.2 kN 4 kN
NU3 - 6 kN
7.5 Switch on
Trial run
If the period between installation and commissioning is expected to be fairly long, make sure
that water-cooled machines undergo a test run without water cooling.
Procedure
● Start up the motor without a load, temporarily. Check the direction of rotation at this point.
● As the motor is coasting down, check the mechanical operation for noise and vibration at
● Where the motor is running without any mechanical problems, switch it back on again.
● In case of uneven running or abnormal noise, switch off the machine. Determine the cause
● If the mechanical operation improves immediately after the motor is switched off, the cause
● If mechanical operation does not improve immediately after switching the motor off, the
● If the motor is running perfectly, switch on the cooling equipment.
64
1G.6 1G.6
1H.6 20. 1H.6 22.
4.5 kN 6 kN
7 kN 9 kN
the bearings and bearing shields.
Continue to the maximum speed allowed (according to the rating plate).
as it coasts.
is magnetic or electrical.
cause is mechanical, e.g. imbalance of electrical machines, etc.
1G.6 1G.6
1H.6 25. 1H.6 28. 1H.7 35.
7.5 kN 9 kN 11 kN
10.5 kN 12.5 kN
1G.7 1G.7 1G.7
1H.7 401 1H.7 404
... 1H.
7 403
1H.7 405
14.5 kN 16.5 kN
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SIMOTICS DC 1GH6
Operating Instructions 02/2016
1G.7
1H.7 45.
...
14.5 kN
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