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3.11.5
Vibration stressing
The on-site system vibration behavior depends on factors, such as the output components,
mounting situation, alignment, installation, and external vibration, which can increase the
vibration values of the motor.
Under certain circumstances, the rotor may have to be balanced together with the output
components.
To ensure normal operation and a long service life, you must not exceed the vibration values
according to ISO 10816 at the defined measuring points on the motor.
See the following table for maximum permissible radial vibration values
Vibration frequency
< 6.3 Hz
6.3 Hz to 250 Hz
> 250 Hz
See the following table for maximum permissible axial vibration values
Vibration velocity
v
rms
Values in both columns must be considered simultaneously.
1)
The following figure provides the maximum permissible radial vibration velocity including the
vibration amplitude and vibration acceleration:
The measuring equipment for measuring the vibration velocity must fulfill the requirements
of ISO 2954. The vibration acceleration must be measured as a peak value within the time
period based on a frequency band of 10 Hz to 2000 Hz.
1PH3 main motors
Equipment Manual, 01/2021, A5E43087278-004
= 4.5 mm/s
Vibration values
Vibration amplitude s ≤ 0.16 mm
Vibration velocity v
≤ 4.5 mm/s
rms
Vibration acceleration a
peak
Vibration acceleration
a
axial = 2.25 m/s
2
peak
Mechanical properties
3.11 Vibration response
:
1)
radial ≤ 10 m/s
2
:
1)
51
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