Siemens SINUMERIK FM-NC Installation And Startup Manual page 175

04.00
03.96
Determining the
After the oscilloscope has been connected, the drive must be made to cross the
zero marker first in order to synchronize it.
commutation
angle
Fig. 6-44
Definition of channels (Ch1 ... Ch4):
S
S
S
S
With a synchronized drive, the difference between EMF/phase U and the electri-
cal rotor position must not exceed $10_.
If the difference is greater, the position of the zero marker must be moved in the
software in MD 1016 "COMMUNTATION_ANGLE_OFFSET".
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SINUMERIK 840D Installation and Start-Up Guide (IAD) – 04.00 Edition
6 Assigning Parameters to the Control and the PLC Program
6.10 Linear motors (1FN1 and 1FN3 motors)
Ch1/Phase U
Ch4
Determining the commutation angle offset by measuring the EMF and normal-
ized electrical rotor position via DAC in a positive drive direction.
Ch1: EMF phase U to neutral point
Ch2: EMF phase V to neutral point
Ch3: EMF phase W to neutral point
Ch4: Normalized electrical rotor position via DAC measuring signal
Ch2/Phase V
Ch3/Phase W
6
6-175