Configuring the motor 5.1 Procedure
no longer purely sinusoidal. As a result, the torque generated by the motor is no longer uniform but instead has a ripple. The extent to which the maximum speed can be overridden depends on the permissible following error and positioning error in the controller as well as the motor type.
●Motor with different winding
Several winding variants are available for some motor sizes. Windings with lower inductance allow higher speeds with the same motor size and maximum torque. One drawback here, however, is the higher motor current.
●Larger motor type
If the first two solutions are not feasible, a motor with a higher peak torque must be used to ensure that sufficient torque reserves are available for the required torque M1 in the upper speed range (see figure below).
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Figure 5-6 Motor torque-speed diagram with the required operating point M1
5.1.8More than one torque motor on one axes
If the torque motors on the same axes are operated on separate drive systems with separate angular position measuring systems, the
Electrical parallel connection
If the motors are operated on the same drive system (electrical parallel connection), the individual rotors must be precisely aligned with each other when they are mounted on the axes. The individual stators must also be precisely aligned with each other when they are installed (see "Parallel operation of more than one motor").
5.1.9Checking the moments of inertia
Once a suitable motor has been selected, the moment of inertia of the rotating mass on the axis has been determined. This value can be used to check the assumptions made regarding the duty cycle.
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