Motor components and options
4.2 Options
S-1FT7 synchronous motors
Configuration Manual, 09/2018, A5E45099423B AA
77
The holding torque M
4
is the highest possible torque that can be applied to the closed brake
in steady-state operation without slip (holding function in a no-current state).
Dynamic braking torque M
1m
The dynamic braking torque M
1m
is the smallest mean dynamic braking torque that can occur
for an Emergency Stop.
Motor damage caused by rotating forces
Output couplings, especially stiff metal bellows-type couplings can exercise rotating forces
on the shaft. These forces can result in bearing motion and in turn damage the motor.
• Rotating forces are not permissible.
To achieve optimum output characteristics, we recommend ROTEX
Ⓡ
GS couplings from the
KTR company.
The advantages of ROTEX
Ⓡ
GS couplings are as follows:
● 2 to 4x torsional stiffness of a belt gearbox
● No teeth meshing (when compared to a belt gearbox)
● Low moment of inertia
● Good closed-loop control response
KTR can provide support when selecting the coupling, see http://www.ktr.com
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