Table of Contents
Advertisement
Technical data and characteristic curves
6.1 Explanations
①
Figure 6-3
Note
The voltage limit characteristic of a motor with 6000 rpm rated speed is far above that of the
same motor type with 2000 rpm. The motor with the rated speed 6000 rpm requires a much
higher current for the same torque.
Therefore select a rated speed for the requirement that is slightly higher than the required
maximum speed.
In this way, the size of the converter module (output current) can be minimized.
Shift of the voltage limiting characteristic (only relevant when field weakening is deactivated)
The voltage limiting characteristic can only be shifted:
● For approximately linear limiting characteristics
● For
Determining the induced voltage U
You can read-off the induced voltage U
using the following formula.
U
IN
136
Voltage limiting characteristic curve = torque limit without field weakening, e.g. with winding
types C, F, H, K
Speed-torque diagram
U
U
>
Mot new
IN
k
n
=
∙
/ 1000
E
N
IN
from the motor rating plate - or you can calculate it
IN
Rated speed
Voltage constant
U
/ V
IN
Configuration Manual, 09/2018, A5E45099423B AA
n
/ rpm
N
k
/ V/1000 rpm
E
S-1FT7 synchronous motors
Advertisement
Table of Contents
