Aerotech Automation1 XC2, Hardware Manual, Page: 41 / 96

2.3.1.1. Square Wave Encoder
The XC2 accepts RS-422 square wave encoder signals. The XC2 will generate a feedback fault if it detects
an invalid signal state caused by an open or shorted signal connection. Use twisted-pair wiring for the
highest performance and noise immunity.
Table 2-15: Square Wave Encoder Specifications
Specification Value
Encoder Frequency 10 MHz maximum (25 ns minimum edge separation)
x4 Quadrature Decoding 40 million counts/sec
Figure 2-12: Square Wave Encoder Schematic (Feedback Connector)
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XC2 Hardware Manual 2.3.1. Primary Encoder Inputs