Trio Motion Coordinator Euro 205, Техническое справочное руководство

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Motion Coordinator Technical Reference Manual
Trio BASIC Commands 8-157
Axis Parameters
DAC_OUT
Type:
Axis Parameter (Read Only)
Description: The axis DAC is the electronics hardware used to /-10volts to the servo
drive when using a servo daughter board. The
DAC_OUT
parameter allows the value
being used to be read back. The value put on the DAC comes from 2 potential
sources:
If the axis parameter
SERVO
is set
OFF
then the axis parameter DAC is written to the
axis hardware. If the
SERVO
parameter is
ON
then a value calculated using the servo
algorithm is placed on the DAC. Either case can be read back using
DAC_OUT
. Values
returned will be in the range -2048 to 2047.
Example:
>>PRINT DAC_OUT AXIS(8)
288.0000
>>
DAC_SCALE
Type: Axis Parameter
Description:
The
DAC_SCALE
axis parameter is only available on the MC206. The parameter has 2
purposes: It is set to value 16 on power up on the built-in axes of the MC206. This
scales the values applied to the higher resolution DAC so that the gains required on
the axis are similar to those required on the other controllers.
DAC_SCALE
may be
set negative (-16) to reverse the polarity of the DAC output signal. When the servo
is off the magnitude of
DAC_SCALE
is not important as the voltage applied is con-
trolled by the DAC parameter. The polarity is still reversed however by
DAC_SCALE
.
When a Servo Daughter Board is used in an MC206 the default
DAC_SCALE
parameter
for that axis will be 1.
Example:
>>DAC_SCALE AXIS(3)=-16
>>