Aerotech XC2e, Hardware Manual, Page: 64 / 92

3.2. Auxiliary Encoder Input [-EB1]
The Auxiliary Encoder connector gives you a second encoder input channel. This channel is typically used
for dual loop applications.
The Auxiliary Encoder input supports square wave encoder types by default and sine wave encoder
types with the -MX3 option. Use the AuxiliaryFeedbackType [A3200: PositionFeedbackType or
VelocityFeedbackType] parameter to configure the encoder signal type.
You can configure the Auxiliary Encoder input as an output that will transmit encoder signals for external
use. Use the EncoderDivider parameter to configure the Sine ± and Cosine ± connector pins as RS-422
outputs.
Refer to the Help file for more information.
Invalid or missing signals will cause the XC2e to generate a feedback fault when the axis is enabled. Use
twisted-pair wiring for the highest performance and noise immunity.
Table 3-4: Auxiliary Encoder RS-422 Specifications
Specification Value
Encoder Frequency 10 MHz maximum (25 ns minimum edge separation)
x4 Quadrature Decoding 40 million counts/sec
Table 3-5: Auxiliary Encoder Connector Pinout
Pin# Description In/Out/Bi Connector
1 Auxiliary Marker - Input
2 Auxiliary Bidirectional
3 Auxiliary Cosine- Bidirectional
4 Auxiliary Sine+ Bidirectional
5
Encoder Cable Shield N/A
6 Auxiliary Input
7 +5 Volt (500 mA max) N/A
8
Signal Common N/A
9 Auxiliary Sine- Bidirectional
Table 3-6: Mating Connector Part Numbers for the AUX Connector
Adapter Cable Aerotech P/N Third Party P/N
9-Pin Standard D-style
C20931 N/A
25-Pin Standard D-style C20932 N/A
Flying Leads ECZ01343 Molex 83421-9042
3.2. Auxiliary Encoder Input [-EB1] XC2e Hardware Manual
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