Siemens 1LE5, Руководство по эксплуатации

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4. During the test run, check and document the following:
– Check whether it is running smoothly.
– Document the voltage, current and power values. As far as possible, document the
corresponding values of the driven machine.
– If this is possible using the available measuring equipment, check the bearing and stator
winding temperatures until they have reached steady-state values.
– Check mechanical operation for noise or vibration at the bearings or end shields.
5. In case of uneven running or abnormal noise, switch off the machine. As the machine runs
down, identify the cause.
– If the mechanical operation improves immediately after the machine is switched off, then
the cause is magnetic or electrical.
– If the mechanical running does not improve immediately after switching the machine
off, then the cause is mechanical.
- Imbalance of the electrical machine or the driven machine
- The machine set has not been adequately aligned
- The machine is being operated at the system resonance point. System = motor, base
frame, foundation, ...
NOTICE
Destruction of the machine
If the vibration values in operation are not maintained in accordance with ISO 10816-3,
then the machine can be mechanically destroyed.
• In operation, maintain vibration values in accordance with ISO 10816‑3.
Commissioning
7.2 Switching on
1LE5, 1PC4 shaft heights 280 ... 355
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Operating Instructions, 11/2022, A5E41454666A