Siemens SIMOTICS S-1FT7 User Manual

Technical data and characteristic curves
6.1 Explanations
S-1FT7 synchronous motors
Configuration Manual, 09/2018, A5E45099423B AA
135
The difference between the DC link voltage of the converter and the induced motor voltage
can be used to impress the current. This difference limits the applicable current level. This
causes the torque to drop off quickly at high speeds.
All operating points that can be achieved with the motor lie to the left of the voltage limiting
characteristic line in area "A".
The characteristics for each winding version are shown in a separate data sheet. The torque-
speed diagrams for different converter output voltages are assigned to each data sheet:
Table 6- 2 Converter output voltages
Diagram
Converter output
voltage V
mot
Infeed module
Line supply voltage
Upper diagram
380 V
SINAMICS SLM
400 V
425 V SINAMICS ALM 400 V
Lower diagram
460 V
SINAMICS SLM
480 V
510 V SINAMICS ALM 480 V
For different converter output voltages, the voltage limiting characteristic curve must be
offset accordingly. See "Explanations (Page 131)."
Winding types
Several winding types (armature circuits) for different rated speeds n
N
are possible within
one motor frame size.
Table 6- 3 Code letter, winding type
Rated speed
n
N
/ rpm
Winding type
(10th digit of the order no.)
1500
B
2000
C
3000
F
4500
H
6000
K

Siemens SIMOTICS S-1FT7 Specifications

General

Brand	Siemens
Model	SIMOTICS S-1FT7
Category	Engine
Language	English