Technical Data and Characteristics
2.2 Power-speed and torque-speed diagrams
1PH7/2-38
Siemens AG, 2004. All rights reserved
Induction Motors, 1PH7 (APH7S) – 05.04 Edition
2.2 Power-speed and torque-speed diagrams
AC s for main spindle drives must be continually cooled in operation, independent
of the operating mode/duty type.
Notes on the diagrams
The dotted lines in the diagrams indicate the power limit of the particular drive con-
verter for the specified AC motor. The power module is specified.
The power values for duty type S6 with a relative power-on duration of 25 %, 40 %
and 60 % are specified (load duty cycle, 10 min).
Speeds designated with
1)
are optional.
Table 2-3 Explanation of the codes used
Abbreviation
Units Description
P
N
kW Rated power
n
N
RPM Rated speed
M
N
Nm Rated torque
I
N
A Rated current
n
max
RPM Maximum rotational speed
I
0
A Standstill current
U
N
V Rated voltage
T
th
min Thermal time constant
J kgm
2
Moment of inertia
m kg Weight
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