Aerotech Automation1 XR3 Series, Hardware Manual

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2.8. Aux Encoder Connectors
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 XR3 to accept an encoder signal type.
Square Wave encoder signals: Section 2.8.1.
Absolute encoder signals: Section 2.8.2.
Sine Wave encoder signals (with the -CT4 option): Section 2.8.3.
High resolution or high-speed encoders can require increased bandwidth for correct operation. Use the
High Speed Mode of the AuxiliaryEncoderMultiplierSetup parameter to enable the high bandwidth
mode. Because this mode increases sensitivity to system noise, use it only if necessary.
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 or, with the -CT2 or -CT4 option, incremental sine wave inputs. You
cannot use the absolute encoder interface when you echo incremental signals.
Table 2-37: Aux Encoder Connector Pinout
Pin # Description In/Out/Bi Connector
1
Auxiliary Sine + Bidirectional
Absolute Encoder Data + Bidirectional
2 Ground N/A
3
Auxiliary Cosine - Bidirectional
Absolute Encoder Clock - Output
4 +5 VA Auxiliary Encoder Power N/A
5 Auxiliary Input
6
Auxiliary Sine - Bidirectional
Absolute Encoder Data - Bidirectional
7 Ground N/A
8
Auxiliary Bidirectional
Absolute Encoder Clock + Output
9 Auxiliary Marker - Input
Table 2-38: Mating Connector Part Numbers for the Aux Encoder Connectors
Mating Connector Aerotech P/N Third Party P/N
9-Pin D-Connector ECK00137 Cinch DE-9P
Backshell ECK01021 Amphenol 17E-1724-2
2.8. Aux Encoder Connectors XR3 Hardware Manual
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