Table of Contents
Advertisement
MBT High Synchronous Torque Motors
10.2.5
Triangular speed
10.3
Duty cycle and torque
10.3.1
General
This speed profile does not have a phase of constant speed in contrast to the
trapezoidal profile. The acceleration phase is immediately followed by the de‐
celeration phase.
Fig. 10-13:
Triangular speed profile
n
Maximum reachable speed in min
max
a
Acceleration in m/s²
φ
Total travel path
all
t
Positioning time in s
Fig. 10-14:
Calucation of triangular speed profile
The relative duty cycle ED specifies the duty cycle percentage of the load
with respect to a total duty cycle time, including idle time. The thermal load
capacity of the motor limits the duty cycle. Loading the motor with a continu‐
ous rated torque is possible during the entire duty cycle time. To avoid ther‐
mal overload at motors with higher torques, reduce the duty cycle at M > M
(see
fig. 10-15
).
Motor dimensioning
-1
R911298798_Edition 08 Bosch Rexroth AG
295/409
N
Advertisement
Table of Contents
