Technical Data And Characteristics; Explanations - Siemens SIMOTICS S-1FK2 Configuration Manual

Technical data and characteristics

6.1

Explanations

Permissible operating range
The permissible motor operating range is thermally, mechanically and electromagnetically
limited. The data provided in the motor data and characteristics are applicable for an ambient
temperature of 40 °C.
The losses in the motor (current-dependent losses, no-load losses, friction losses) cause the
motor temperature to increase.
To maintain the temperature limits, the permissible S1 torque – starting from static torque M
decreases as the speed increases.
Motor characteristics
1
2
3
Figure 6-1
S1 characteristic
The S1 characteristic
operation according to the specified temperature class of the motor.
The average value of the output torque must lie below the S1 characteristic.
1FK2 Synchronous Motors for SINAMICS S120
Configuration Manual, 02/2022, A5E46927724B AD
S1 characteristic 4
M characteristic 5
max
M characteris‐
max inv
tic
Torque characteristic 1FK2
①
shows the limits of the permissible temperature range for continuous
n line
max inv
Voltage limit characteristic curve
6
–
0
81