Bosch R911274804, Руководство по планированию проекта

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MKE
2-10
Mechanical integration into the machine DOK-MOTOR*-MKE*******-PRJ1-EN-E1,44
•
06.97
2.7 Speed and Torque
The rotational speed/torque characteristics depict
•
the torque limit data
•
the rotational speed limit data and
•
operating characteristics
A diagram for each motor can be found in sections 4 to 6 under the topic
„Speed/torque characteristics“.
⇒
Use this diagram to:
•
Determine maximum usable speed with known torque requirements.
•
Check whether the thermal limits of the motor are maintained. The
RMS torque for a critical cycle must be below the S1 continuous ope-
rating curve (M
dN
) of the averaged speed (arithmetic average).
•
Record information from the selection documentation.
Fig. 2-10: Example diagram to illustrate speed/torque characteristics
Corresponds to the theoretically possible maximum torque of the motor.
The drive controller can limit it.
Note: The maximum torque of a motor/controller combination is
always specified in the selection lists.
S6 intermittent operating curve with 25% ON time of the motor cooled
with natural convection or 56% ON time of the motor with surface cooling
as per DIN VDE 0530, edition 07/1991. Maximum duty cycle time for
•
MKE 035: equals 10 minutes
•
MKE 045 and 096: equals 15 minutes.
S1 continuous operating curve of the motor (as per DIN VDE 0530, editi-
on 07/1991).
M
max
M
KB
M
dN