Yaskawa MP940 Hardware Manual - Manual (Page 48)

MotionSuite™ MP940 Machine Controller Hardware Manual Section 8: Analog I/O
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Section 8: Analog I/O
Analog Input
The MP940 analog input comes from the SGDH analog input via dual port RAM. The
analog input enters the SGDH on pin 5 of the CN1 connector. Normally, this is the
VREF input, but when the MP940 and SGDH are combined, the VREF becomes
available for general purpose.
Item Specifications
Input Voltage ± 12V
Input Impedance Approximately 14k
Resolution 16 bits over a ±15V range or 457 µV/bit
Accuracy The linearity of the analog input is guaranteed only within the range of ±12.0V
Figure 8.1: Analog Input Data
CN1 Connector
A/D D
ual P
ort R
A
M
V
MP940
SGDH
-12V ~ +12V
5
6
12V -12V
32767
26213
15V -15V
-26214
-32768