Installation and Configuration
Npaq MR Hardware Manual
2.4.1. Encoder Inputs
The Npaq MR is equipped with standard and auxiliary encoder feedback channels. The standard encoder
interface is accessible through the Motor Feedback connector. By default, it accepts an RS-422 differential
line driver signal. If the -MXU or -MXH option has been purchased, the standard encoder interface has been
configured for an analog encoder input via parameter settings.
Refer to
for encoder feedback phasing. Refer to
for the auxiliary encoder
channel.
N O T E :
Encoder wiring should be physically isolated from motor, AC power and all other power wiring.
N O T E :
The PSO feature is
not
compatible with the -MXU option. The PSO feature operates with the -
MXH option and with square wave encoders.
Table 2-8:
Encoder Pin Assignment
Pin#
Description
In/Out/Bi
1
Chassis Frame Ground
N/A
3
+5V Power for Encoder (500 mA max)
Output
6
Encoder Marker Reference Pulse -
Input
7
Encoder Marker Reference Pulse +
Input
14
Encoder
Input
15
Encoder Cosine -
Input
17
Encoder Sine +
Input
18
Encoder Sine -
Input
21
Signal Common for Encoder
N/A
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