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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 10bit
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 4, MO2 = Pin 14, LG = Pin 1,11
9
2
5
1
6
4
3
10
7
8
19
12
15
11
16
14
13
20
17
18
MDS-D-SVJ3
connector
Pin
Name Pin Name
+2.5 [V]
0 [V]
Speed FB
Current FB
+2.5 [V]
0 [V]
+5 [V]
+5 [V]
Example of D/A output waveform
