Siemens 1FT7 Configuration Manual page 75

Winding versions
Several winding versions (armature circuits) for different rated speeds n
a motor frame size.
Table 4- 1
Figure 4-3
Note
The voltage limit characteristic of a motor with 6000 RPM rated speed lies far above that of
the same motor type with 2000 RPM. However, for the same torque, this motor requires a
significantly higher current.
For this reason, you should select the rated speed such that it does not lie too far above the
maximum speed required for the application.
The size (rating) of the converter module (output current) can be minimized in this fashion
1FT7 Synchronous Motors
Configuration Manual, (PFT7S) 01/2009, 6SN1197-0AD13-0BP2
Code letter, winding version
Rated speed n
N
[1/min]
1500
2000
3000
4500
6000
Speed-torque diagram
Technical data and characteristic curves
4.1 Operating range and characteristics
are possible within
N
Winding version
(10. position of the Order No.)
B
C
F
H
K
75