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3 Function Specifications
MITSUBISHI CNC
3-6 Diagnosis function
3-6-1 Monitor output function
<Servo drive unit>
Drive unit has a function to D/A output the various control data. The servo adjustment data required for
setting the servo parameters to match the machine can be D/A output. Measure using a high-speed
waveform recorder, oscilloscope, etc.
(1) D/A output specifications
When the output data is 0, the offset voltage is 2.5V. If there is an offset voltage, adjust the zero level
position in the measuring instrument side.
Item Explanation
No. of channels 2ch
Output cycle 0.8ms (min. value)
Output precision 12bit
Output voltage range 0V to 2.5V (zero) to +5V
Output magnification setting -32768 to 32767 (1/100-fold)
Output pin (CN9 connector) MO1 = Pin 9, MO2 = Pin 19, LG = Pin 1,11
Others
The D/A output for the 2-axis unit is also 2ch. When using the 2-axis unit,
always set -1 for the output data (SV061, 62) of the axis that is not to be measured.
MDS-D/DH-V2
CN9 connector
Pin Pin
Name
Name
LGLG
M01
M02
+2.5 [V]
0 [V]
Speed FB
Current FB
+2.5 [V]
0 [V]
+5 [V]
+5 [V]
Example of D/A output waveform