Siemens SINAMICS S120 Commissioning Manual page 167

Taking the necessary measurements
● Disconnect the drive line-up from the power supply.
● Notice: Wait until the DC link has been discharged!
● Disconnect the power cables from the drive.
● Form an artificial neutral point using 1 kOhm resistors.
Figure 2-42
For a positive traversing direction, the phase sequence must be U-V-W. 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 2-43
Commissioning Manual
Commissioning Manual, (IH1), 01/2012, 6SL3097-4AF00-0BP2
Disconnect any primary components connected in parallel.
Configuration for taking the measurements
The positive direction of the drive (clockwise rotating field)
2.13 Commissioning linear motors (servo)
Commissioning
165