Mitsubishi Electric MDS-D-SPJ3 Specification Manual page 88

< Spindle drive unit >
Drive unit has a function to D/A output each control data. The spindle adjustment data required to set the
spindle parameters matching the machine can be D/A output. The data can be measured with a high-speed
waveform recorder or oscilloscope, etc.
(1) D/A output specifications
Item
No. of channels
Output cycle
Output precision
Output voltage range
Output magnification setting
Output pin (CN9 connector)
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.
CN9
Pin Name
1
2
3
4 MO1
5
6
7
8
9
10
MDS-D-SPJ3
MO1 = Pin 4, MO2 = Pin 14, LG = Pin 1,11
Memory
Scroll
+5 [V]
Speed FB
+2.5 [V]
0 [V]
Current FB
+2.5 [V]
0 [V]
Example of D/A output waveform
MDS-D-SVJ3/SPJ3 Series Specifications Manual
connector
Pin Name
LG 11 LG
12
13
14 MO2
15
16
17
18
19
20
Explanation
2ch
0.8ms (min. value)
10bit
0V to 2.5V (zero) to +5V
-32768 to 32767 (1/100-fold)
3-6 Diagnosis function
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