The digital encoder interface (Ch1 … Ch6) supports single-ended TTL
and differential RS422 signals with the following characteristics.
Electrical characteristics
Parameter
Value
RS422 differential
mode
RS422 input
voltage
High
Low
Diff > +0.2 V
Diff < –0.2 V
n
Diff = Voltage difference between
inverted and non-inverted signal
n
The inverted and non-inverted signal
must be in the range 0 … 5 V.
Input impedance
The input impedance gradually drops from
14 kΩ at DC to 210 Ω at the corner
frequency of 225 kHz.
TTL single
‑
ended
mode
Min.
Max.
TTL input voltage
High
Low
2.0 V
0 V
5.0 V
0.8 V
Input impedance
Approx. 14 kΩ
Power-up default
The behavior of inputs is not critical for
connected devices.
Analog Encoder Interface: I/O Circuit and Electrical
Characteristics
The analog encoder interface (
Ch7
) supports 1 V
pp
or 11 μA
pp
differential signals (programmable by software).
Objective
s
Incremental Encoder Interface
t
DS1103 Hardware Installation and Configuration November 2014
179
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Содержание DS1103
Страница 1: ...DS1103 PPC Controller Board Hardware Installation and Configuration Release 2014 B November 2014 ...
Страница 10: ...s Contents t 10 s DS1103 Hardware Installation and Configuration November 2014 ...
Страница 28: ...s Before You Start t 28 s DS1103 Hardware Installation and Configuration November 2014 ...
Страница 52: ...s Installing the Hardware t 52 s DS1103 Hardware Installation and Configuration November 2014 ...
Страница 102: ...s Uninstalling the System t 102 s DS1103 Hardware Installation and Configuration November 2014 ...
Страница 160: ...s Mapping of I O Signals t 160 s DS1103 Hardware Installation and Configuration November 2014 ...
Страница 218: ...s Troubleshooting t 218 s DS1103 Hardware Installation and Configuration November 2014 ...
Страница 219: ...Data Sheets DS1103 Hardware Installation and Configuration November 2014 219 t ...
Страница 226: ...s Data Sheets t 226 s DS1103 Hardware Installation and Configuration November 2014 ...
Страница 302: ...s Index t 302 s DS1103 Hardware Installation and Configuration November 2014 ...