Definitions - Siemens SINAMICS S120 Configuration Manual

4.4

Definitions

Rated speed n
N
The characteristic speed range for the motor is defined in the speed-torque diagram by
the rated speed.
Number of poles 2p
Number of magnetic north and south poles on the rotor. p is the number of pole pairs.
Rated torque M
N
Thermally permissible continuous torque in S1 duty at the rated motor speed.
Rated current I
N
RMS motor phase current for generating the particular rated torque. Specification of
the RMS value of a sinusoidal current.
Static torque M
0
Thermal limit torque at motor standstill corresponding to a utilization according to
100 K or 60 K. This can be output for an unlimited time when n = 0. M
than the rated torque M
Stall current I
0
Motor phase current for generating the particular static torque. Specification of the
RMS value of a sinusoidal current.
Moment of inertia J
mot
Moment of inertia of rotating motor parts.
Synchronous Motors 1FK7
Configuration Manual, (PFK7S), Edition 12.2006, 6SN1197-0AD16-0BP1
.
N
Electrical data
4.4 Definitions
is always greater
0
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