Baumer HUBNER BERLIN Proibus DP HMG 10 Посібник з монтажу та експлуатації - Сторінка 15
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4.5
How to prevent measurement errors
To ensure that the encoder operates correctly, it is necessary to mount it accurately as
described in section 4.1 to 4.4, which includes correct mounting of the torque arm.
The radial runout of the drive shaft should not exceed 0.2 mm (0.03 mm recommended),
to prevent an angle error.
An angle error may be reduced by increasing the length of L1*. Make sure that the length
L2 of the torque arm, see below, is at least equal to L1**.
The angle error Δρ
Δρ
= ±90°/π · R/L1
mech
with R: Radial runout in mm
L1:
Example:
For R = 0.06 mm and L1 = 69.5 mm the resulting angle error Δρ
For more information, call the telephone hotline at +49 (0)30 69003-111.
i
* For this different braces for the torque arm are available on request.
** If L2 < L1, L2 must be used in the calculation formula.
MB246EN - 11171695, 16A3, Baumer_HMG10-ProibusDP_II_EN
can be calculated as follows:
mech
Distance of the torque arm to the center point of the encoder in mm
MOUNTING / HOW TO PREVENT MEASUREMENT ERRORS
L1
equals ±0.025°.
mech
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