10 Technical Data
40
Version: 1.3.0
MP136E
U651 Rotation Stage
10.3.3
Motor Power and Lifetime
Motor power, duty cycle and ambient temperature influence the lifetime of the rotation stage.
In order to prevent overheating and high wear, the motor power and the duty cycle should not
exceed the limits given in the following graph. A load cycle corresponds to a positioning run and
includes the acceleration, motion, deceleration as well as downtime (break). The motor should
only sporadically be operated at peak power; the peak power serves as a control reserve.
INFORMATION
In a vacuum, there is no heat dissipation via convection.
Operate the vacuum version of the U-651 with a 20 % lower motor power than given in the
graph, or reduce the duty cycle.
Figure 10: U-651: Recommended duty cycle and motor power depending on the ambient temperature
