Siemens SIMOTICS T-1FW68, Configuration Manual

Page: 135 / 194

Technical data and characteristics
6.2 Data sheets and characteristics
1FW68 radial segment motors
Configuration Manual, 08/2021, A5E51132930B AA
133
Note
Above a certain speed, a VPM Voltage Protection Module is required; refer to the
Chapter "Data sheets and characteristics" regarding this topic.
Please note that as the speed increases, the rotor power loss also increases. This means
that additional measures must be taken to dissipate the rotor power loss.
The circle shown in the "Schematic description of the torque-speed diagram" diagram on
the torque axis designates the area/range around M
0
and M
0
*. This area is shown
magnified in the detailed view.
The reference motor described has a high number of poles - and has an adequately large
thermal time constant. As a consequence, torque M
0
can be reached, even at very low
speeds.
The torque-speed diagrams for the reference motor can be found in Chapter "Data
sheets and characteristics".
6.2 Data sheets and characteristics
Table 6- 1 Color assignment of the M-n characteristics in the diagram
Color Resulting DC link
voltage U
DC
Converter output
voltage (rms value)
U
a max
Permissible line supply
voltage
(rms value)
SINAMICS S120
Line Module
600 V
425 V 400 V Active Line Module,
controlled with
regenerative feedback