Siemens 1PH813 - Vibration Strength

Installation
5.4 Vibration strength
Synchronous/induction motors 1PH813
Operating Instructions, 04/2009, 610.48000.22
35
5.4 Vibration strength
The on-site system vibration characteristics depend on factors such as the output elements,
assembly conditions, alignment, installation, and external vibrations and can increase the
level of vibration on the motor.
Under certain circumstances, the rotor may have to be balanced completely with the output
element.
To ensure problem-free operation and a long service life, the vibration values specified to
ISO 10816 must not be exceeded at the defined measuring points on the motor.
Table 5- 2 Max. permissible radial vibration values
1)
Vibration frequency Vibration values
< 6.3 Hz Vibration displacement s ≤ 0.16 mm
6.3 - 250 Hz Vibration velocity v
eff
≤ 4.5 mm/s
> 250 Hz Vibration acceleration a ≤ 10 m/s2
Table 5- 3 Max. permissible axial vibration values
1)
Vibration velocity Vibration acceleration
v
eff
= 4.5 mm/s a
peak
= 2.25 m/s
2
1) Both values must be observed simultaneously.
Figure 5-3 Max. permissible vibration velocity, taking into account the vibration displacement and
vibration acceleration
To measure the vibration velocity, the measuring equipment must fulfill the requirements of
ISO 2954. The vibration acceleration must be measured as a peak value in the time range in
a frequency band of 10 to 2000 Hz.