DSP resolver user manual
User Manual
Version 1.15
offset can always be read from
co_offset_value
object except when the offset feature is
disabled.
The offset defined in the
co_offset_value
object doesn't affect to the sensor output
co_position_value
unless the scaling bit ( bit 2 in
co_operating_parameters
variable ) is
set as logic 1.
Note
that the very same scaling bit enables using a non default value of the
co_units_per_revolution
object!
Note that the value range of the
co_offset_value
object depends on the current resolution
which is defined by the
co_single_turn_resolution
object. Ensure that you set the resolution
before setting the offset.
The value range of the
co_preset_value
is
0 ... (
co_single_turn_resolution
– 1)
and the value range of the
co_offset_value
is
(-1 *
co_single_turn_resolution
+ 1) ... (
co_single_turn_resolution
– 1)
Illustration Illustration 7.1: sensor position value evaluation illustrates how the
co_position_value
is evaluated.
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©
Axiomatic Technologies Oy
23/56
Illustration 7.1: sensor position value evaluation
Measured angle
co_position_value
Is code sequence
clockwise or
counterclockwise
Is scaling
enabled
Scale position into
0...35999
Scale position into
0...(co_single_turn_resolution - 1)
Inverse position:
CW
CCW
NO
YES
Reduce position with
co_offset_value
