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MKE
2.7
Speed and Torque
2-10
Mechanical integration into the machine
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
• 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.
M
max
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
M
KB
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-
M
dN
on 07/1991).
) of the averaged speed (arithmetic average).
dN
DOK-MOTOR*-MKE*******-PRJ1-EN-E1,44 • 06.97
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