Trio Motion Coordinator MC216 - Page 346

8-156Trio BASIC Commands
Axis Parameters
Trio Motion Technology
CREEP AXIS(1)=10
SPEED AXIS(1)=500
DATUM(4) AXIS(1)
DAC
Type:
Axis Parameter
Description:
Writing to this axis parameter when SERVO=OFF allows the user to force a specified
voltage on a servo axis. The range of values that a 12 bit DAC can take is:
DAC=-2048 corresponds to a voltage of 10V
to
DAC=2047 corresponds to a voltage of -10v
The range of values that a 16 bit DAC (MC206 built-in axes only) can take is:
DAC=32767 corresponds to a voltage of 10V
to
DAC=-32768 corresponds to a voltage of -10v
Note:
The SERVO DAUGHTER BOARD/MC202 hardware inverts the signal compared to the
number.
Example:
To force a square wave of amplitude +/-5V and period of approximately 500ms on
axis 0.
WDOG=ON
SERVO AXIS(0)=OFF
square:
DAC AXIS(0)=1024
WA(250)
DAC AXIS(0)=-1024
WA(250)
GOTO square