Siemens 1FW6092-2PC15-6AB3, Руководство по настройке

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Technical data and characteristics
6.1 Explanations
1FW6 High Speed built-in torque motors
146
Configuration Manual, 01/2020, 6SN1197-0AE03-0BP3
For the SINAMICS S120 drive system, as a result of the field weakening function, when the
"voltage limiting characteristic" is reached, then the voltage induced in the motor winding is
automatically compensated. As a consequence, the speed range of a motor can be
extended without requiring a larger power module. The operating points for field weakening
that can be reached when motoring, are located to the left or below the "voltage limiting
characteristic with field weakening" and to the right of the "voltage limiting characteristic".
Note
Above a certain speed, a Voltage Protection Module VPM is required; refer to Chapter
"Configuring" and "Data sheets and characteristics" on 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 curve" on the torque axis
characterizes the area around M
0
and M
0
*. In the detail view it is shown zoomed in.
The motors described have a large number of poles and have a sufficiently large thermal
time constant. As a consequence, torque M
0
can be reached, even at very low speeds.
The torque-speed curves for the motors can be found in Chapter "Data sheets and
characteristics."
Short-circuit braking torque
For each frame size and active part length, the short-circuit braking torque M
Br
is specified as
the "short-circuit braking torque versus speed" characteristic.
Figure 6-6 Short-circuit braking torque speed diagram (example)