Siemens SIMOTICS S-1FK2 Configuration Manual page 161

Maximum permissible speed at converter n
The maximum permissible operating speed for operation at a converter is n
by withstand voltage, maximum frequency).
NDE
Non-drive end = Non-drive end of the motor
Static torque M
0
Thermal torque limit when the motor is at a standstill corresponding to the motor thermal class.
M is always ≤ the rated torque M
0
Stall current I
0
Motor phase current to generate the particular stall torque (M
value of a sinusoidal current.
Thermal time constant T
Defines the increase in the motor frame temperature when the motor load is suddenly increased
(step function) to the permissible S1 torque. The motor has reached 63% of its final temperature
after T
Moment of inertia J
Mot
Moment of inertia of rotating motor parts. J
1FK2 Synchronous Motors for SINAMICS S120
Configuration Manual, 02/2022, A5E46927724B AD
th
.
th
max conv
.
N
= without brake, J
Mot
(e.g. limited
max conv
= k • I ). Specification of the RMS
0 T 0
= with brake.
MotBr
Glossary
159