Kollmorgen AKD PDMM series, User Manual

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AKD PDMM User Guide | 31.17 FB1.POLES
Example
If FB1.P is 10000 counts and FB1.POFFSET is set to –10000 counts, then the next read of
FB1.P will return ~0 counts.
31.17 FB1.POLES
General Information
Type R/W Parameter
Description
Reads the number of feedback
poles.
Units N/A
Range 2 to 128
Default
Value
2
Data Type Integer
See Also MOTOR.POLES
Start Version M_01-00-00-000
Description
FB1.POLES sets the number of individual poles in the feedback device. This variable is used
for the commutation function, as well as for velocity feedback scaling, and represents the
number of individual poles (not pole pairs). The division value of motor poles (MOTOR.POLES)
and feedback poles (FB1.POLES) must be an integer when moving drive to enable, otherwise a
fault is issued.
Related Topics
Feedback 1 (pg 45)
31.18 FB1.PSCALE
General Information
Type R/W Parameter
Description
Sets position scaling value for fieldbus transferred position
objects.
Units N/A
Range 0 to 32
Default
Value
20
Data Type Integer
See Also N/A
Start Version M_01-00-00-000
Description
Position values transfered over fieldbus are converted from native 64-bit values to a maximum
32-bit position value. This parameter sets the resolution/revolution of position values back to
the controller.
FB1.PSCALE determines the counts per revolution of position values delivered by fieldbus.
The default value is 20, which yields 2^20 counts/revolution. This scaling is used for CAN
PDOs 6064 (Position Actual Value) and 60F4 (Following Error Actual Value).
Kollmorgen™ | December 2012 318