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46
Chapter 2
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2.3.1.1. RS-422 Line Driver Encoder (Standard)
The standard encoder interface accepts an RS-422 differential quadrature line driver signal. Invalid or
missing signals will cause a feedback fault when the axis is enabled.
An analog encoder is used with the -MXU option (refer to
Section 2.3.1.4.
for more information).
Table 2-15:
Encoder Specifications
Specification
Value
Encoder Frequency
10 MHz maximum (25 nsec minimum edge separation)
x4 Quadrature Decoding
40 million counts/sec
J103-14
J103-15
J103-17
J103-18
COS+
COS-
SIN+
SIN-
J103-6
J103-7
MRK-
MRK+
DS26LV32AT
ADM1485
110
10K
10K
10K
10K
110
220
220
+5V
ENCODER
FAULT
DETECTION
+3.3V
+3.3V
1
0
K
1
0
K
1
0
K
1
0
K
ADG802
Figure 2-19:
Line Driver Encoder Interface (J103)
Ensemble CP
Installation and Configuration
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