G&L MMC-A2, Руководство по оборудованию

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Standalone MMC Control
80 MMC Hardware Manual G & L Motion Control Inc.
For more information on the Encoder input operation,
refer to
Section A.4 on page 175 of Appendix A .
Figure 4-20: Aux Port MMC Encoder Input
4.7.2.5 Aux I/O Port Analog Input
The Aux I/O Port provides one differential analog input
channel. The input range is ±10 VDC. The analog input
voltage is sampled every 100 µsec by a 12-bit A/D
converter. The most recent conversion result is stored in
an on-board register. This register can be read at any
time by the application.
The analog input signal passes through a common mode
and differential mode filter prior to being applied to the
NOTE
The power supply that powers the encoder must be referenced to
the power supply that powers the MMC. This is done by connecting
the “common” terminal of each supply back to Single Point
Ground. Failure to observe this precaution may result in sporadic
encoder operation and/or damage to the MMC.
A
A/
I
B
I/
B/
A
A/
B
B/
I
I/
MMC Aux I/O Connector
Drive
1
2
3
4
5
6
Shielded
Twisted
Pairs