Advantech Automation1 XC4, Hardware Manual

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2.5.1. Auxiliary Encoder Inputs
The Auxiliary Encoder connector gives you a second encoder input channel. This channel is typically used
for dual loop applications.
Use the AuxiliaryFeedbackType [A3200: PositionFeedbackType or VelocityFeedbackType] parameter to
configure the XC4 to accept an encoder signal type.
Square Wave encoder signals: Section 2.5.1.1.
Absolute encoder signals: Section 2.5.1.2.
You can configure the Auxiliary Encoder interface as an output that will transmit encoder signals for
external use. Use the DriveEncoderOutputConfigureInput() function [A3200: EncoderDivider parameter]
to configure the Sine ± and Cosine ± connector pins as RS-422 outputs. You can only echo incremental
square wave primary encoder inputs. You cannot use the absolute encoder interface when you echo
incremental signals.
Table 2-35: Auxiliary Encoder Pins on the Auxiliary I/O Connector
Pin# Description In/Out/Bi
1
Auxiliary Sine + Bidirectional
Absolute Encoder Data + Bidirectional
2
Auxiliary Sine - Bidirectional
Absolute Encoder Data - Bidirectional
10
Auxiliary Bidirectional
Absolute Encoder Clock + Output
11
Auxiliary Cosine- Bidirectional
Absolute Encoder Clock - Output
12 +5 Volt (500 mA max) N/A
19
Auxiliary Marker- / PSO output
(2)
/ TTL Output
Bidirectional
20
Auxiliary / PSO output
(2)
Bidirectional
21 Common N/A
(2) For PSO, refer to Section 2.5.2.
XC4 Hardware Manual 2.5. Auxiliary I/O Connector
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