Siemens SIMOTICS S-1FT2 - Vibration Response and Severity

6.6 Vibration response
Vibration severity grade
Motors with keyway are balanced by the manufacturer using a half-key.
The vibration response of the system at the location of use is in󹪞uenced by output elements,
any built-on parts, the alignment, the installation, and external vibrations. This can change
the vibration values of the motor.
The motors conform to vibration severity grade A according to EN60034-14 (IEC60034-14).
The speci󹪝ed values refer only to the motor. The installation-dependent system vibration
behavior can increase these values at the motor.
The vibration severity grade is maintained up to the rated speed (n
N
)
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Figure6-3 Vibration severity levels
Vibration response
Comply with the vibration values in the following table to ensure perfect functioning of the
motor and a long service life.
Motor Vibration velocity
V
rms
acc. to ISO 10816-1: 1997-08
(historical)
Vibration acceleration
a
peak axial
Vibration acceleration
a
peak radial
Naturally
cooled
max. 4.5mm/s 50m/s
2
50m/s
2
Force ventila‐
ted
max. 4.5mm/s 25m/s
2
25m/s
2
The measuring equipment must ful󹪝ll the requirements of ISO2954 to evaluate the vibration
velocity
Select the measuring points based on ISO10816-1: 1997-08 (historical), Section 3.2.
The vibration acceleration is evaluated in the frequency range from 10Hz…2000Hz. The
maximum peak in the measurement time range is taken into consideration.
Mounting
6.6Vibration response
SIMOTICS S-1FT2 synchronous motors for SINAMICS S120
Operating Instructions, 12/2023, A5E50610821B AF 75