Measuring System - Siemens SINAMICS S120 Commissioning Manual

Commissioning
2.10 Commissioning linear motors (servo)
2.10.5

Measuring system

Determining the control sense
The control sense of an axis is correct if the positive direction of the drive (= clockwise
rotating field U, V, W) coincides with the positive counting direction of the measuring system.
Note
The data to determine the drive direction is only valid for Siemens motors (1FNx motors).
If the positive direction of the drive and positive counting direction of the measuring system
do not match, the actual speed value (P0410.0) must be inverted when the drive is
commissioned.
The control sense can also be checked by first parameterizing the drive, and then manually
moving it, with the enable signals inhibited (switched out).
If the axis is moved in the positive direction, the actual speed value must also count in the
positive direction.
Determining the drive direction
The direction of the drive is positive if the primary section moves relative to the secondary
section in the opposite direction to the cable outlet direction.
Figure 2-17
Determining the counting direction of the measuring system
The counting direction is determined depending on the measuring system.
Measuring systems from Heidenhain
Note
The counting direction of the measuring system is positive, if the distance between the
sensor head and rating plate increases.
96
Determining the positive direction of the drive
Commissioning Manual, (IH1), 07/2007 Edition, 6SL3097-2AF00-0BP7
Commissioning