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General Information on AC Induction Motors
2.1 Definitions
Permissible vibration velocity V
3
ALA
2
1
0.71
0.45
0.28
Fig. 2-2
Vibration severity – limit values, AC motors, shaft heights 100 mm to 132 mm
4
3
2
1
Fig. 2-3
Vibration severity, AC motors, shaft heights 160 mm to 225 mm
ALA/2-12
[mm/s]
rms
1.87
1.4
1.18
1.12
0.89
0.75
0.71
0.56
0.45
2000
4000
6000
Permissible vibration velocity V
rms
1.8
1.12
1.12
0.71
0.71
0.45
1000
2000
3000
3.2
Level R
2.8
2.4
1.80
1.5
1.12
8000
10000
12000
[mm/s]
3.0
2.25
1.87
1.4
1.18
0.89
4000
5000
Siemens AG 2000 All rights reserved
SIMODRIVE Planning Guide Motors (PJM) – 11.00 Edition
3.2
3.0
Level S
2.25
1.85
Level SR
n [RPM]
14000
16000
4.0
Level R
2.5
Level S
1.87
Level SR
n [RPM]
6000
7000
8000
6SN1197–0AA20
09.00
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