Installation and Configuration
Npaq® Hardware Manual
2.6.1.1. 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 -MXR option (refer to
for more information).
Table 2-14:
Encoder Specifications
Specification
Value
Encoder Frequency
10 MHz maximum (25 nsec minimum edge separation)
x4 Quadrature Decoding
40 million counts/sec
Figure 2-15:
Line Driver Encoder Interface
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Chapter 2
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