Voltage Limiting Characteristics - Siemens SINAMICS S120 Configuration Manual

Electrical data

4.2 Voltage limiting characteristics

Torque characteristics of motor
The maximum permissible torque is dependent on the permissible overtemperature and,
thus, on the duty. To adhere to the temperature limits, the torque must be reduced as
the speed increases, starting from static torque M
The characteristic curves are specified for continuous operation S1 (100 K), S1 (60 K) duty
and periodic intermittent operation S3-25%, S3-40%, S3-60% duty with a cycle time of
10 minutes, except for small motors, for which a cycle time of 1 minute is specified and noted
in the characteristic curves.
For more information about the duty cycles, refer to the section on Dimensioning.
A transient, high overload capacity up to M
range.
Warning
Continuous duty in the area above the S1 characteristic curve is not thermally permitted for
the motor.
The speed range is limited by the mechanical limit speed n
the rotor, bearing service life) or the electrical limit speed n
converter and/or motor).
4.2 Voltage limiting characteristics
Armature circuit
Several armature circuit versions (winding versions) for different rated speeds n
possible within a motor frame size.
Table 4-1
40
Code letter, winding version
Rated speed n
N
[RPM]
2000
3000
4500
6000
Configuration Manual, (PFK7S), Edition 12.2006, 6SN1197-0AD16-0BP1
.
0
is provided over the complete speed setting
max
max mech
(withstand voltage of
max Inv
Winding version
(10. position of the Order No.)
(centrifugal forces at
are
N
C
F
H
K
Synchronous Motors 1FK7