Siemens TV Converter Box 611 Manual Do Utilizador
Commissioning
9.2 Procedure
1FW6 Built-in torque motors
186
Configuration Manual, 05/2009, 6SN1197-0AD00-0BP7
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Figure 9-12 Determining the commutation angle offset by measuring the EMF and the standardized
electrical rotor position via a DAC, with a positive motor direction of rotation
Definition of channels (Ch1 to Ch4):
Ch1: EMF phase U to neutral point
Ch2: EMF phase V to neutral point
Ch3: EMF phase W to neutral point
Ch4: Standardized electrical rotor position via DAC measuring signal
Note
If you select the measuring signal "Standardized, electrical rotor position", the SHIFT factor
If you select the measuring signal "Standardized, electrical rotor position", the SHIFT factor
must be set to 8 and the offset value to – 2.5 V.
When the drive is synchronized, the difference between the EMF phase U and the electrical
rotor position must not exceed 10°.
If the difference is greater than this value, the position of the zero mark must be shifted using
If the difference is greater than this value, the position of the zero mark must be shifted using
software via MD 1016 "COMMUTATION_ANGLE_OFFSET".