Npaq MR Hardware Manual
Installation and Configuration
2.4.1.1. 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 -MXH/-MXU option (refer to
for more information).
Table 2-9:
Encoder Specifications
Specification
Value
Voltage
5 VDC
Encoder Frequency
10 MHz maximum (25 nsec minimum edge separation)
x4 Quadrature Decoding
40 million counts/sec
Figure 2-13:
Line Driver Encoder Interface
26
Chapter 2
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