Configuration
5.4 Mounting
1FW6 High Speed built-in torque motors
Configuration Manual, 01/2020, 6SN1197-0AE03-0BP3
121
5.4.4
Specifications for mounting torque motors
Mounting system
Consider the following when mounting the torque motor on the axis structure:
●
Only use new, unused fixing screws.
●
Consider types of screws with property classes according to the following table.
●
The mounting surfaces must be free of oil and grease.
●
Note the maximum permissible depth of engagement of the fixing screws in the stator and
rotor according to the table below and the relevant installation drawing.
●
Observe minimum necessary depth of engagement of the fixing screws in the stator and
rotor according to the following table and the relevant installation drawing.
To secure the screws, choose long clamping lengths l
k
, l
k
/ d > 5 if possible; alternatively
(if l
k
/ d > 5 is not possible), check pretensioning of the screws at regular intervals. For
this purpose, tighten the fixing screws with a calibrated torque wrench.
●
Apply the tightening torques specified in the table below.
●
Tighten the screws in such a way that the angle of rotation is controlled. Using a
calibrated torque wrench with the shortest possible bit insert, however, ensure that they
are tightened in diagonally opposite (180°) pairs.
●
Minimize the settling amounts of the screws. Do this by retightening all screws.
●
Do not use liquid threadlocker.
Explanations:
I
k
= Clamping length of the screw in mm
d = Nominal diameter of the screw in mm (e.g. M8 screw: d = 8 mm)
Note
Based on the coefficient of friction µ
ges
= 0.1:
For smaller friction values, you must reduce the tightening torque and for larger friction
values you must increase the tightening torque. Observe VDI2230 in doing this.
Also note the maximum permissible tightening torques of the screws used. These may be
lower than the values in the table below.
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