Aerotech Automation1 XC2, Руководство по оборудованию, Страница: 43 / 96

2.3.1.3. Sine Wave Encoder [-MX1 Option]
The Sine Wave Encoder option provides higher positioning resolution by subdividing the fundamental
output period of the encoder into smaller increments. The amount of subdivision is specified by the
PrimaryEncoderMultiplicationFactor [A3200: EncoderMultiplicationFactor] parameter. Use Encoder
Tuning [A3200: Feedback Tuning] to adjust the value of the gain, offset, and phase balance controller
parameters to get the best performance. For more information, refer to the Help file.
You cannot use a sine wave encoder with the -MX1 multiplier option as an input to the PSO. The -MX1
option does not generate emulated quadrature signals.
For the highest performance, use twisted pair double-shielded cable with the inner shield connected to
signal common and the outer shield connected to frame ground. Do not join the inner and outer shields
in the cable.
Table 2-16: Sine Wave Encoder Specifications
Specification Value
Input Frequency (max) 200 kHz
Input Amplitude
(1)
0.6 to 1.75 Vpk-pk
Interpolation Factor (max) 16,384
Input Common Mode 1.5 to 3.5 VDC
(1) Measured as SIN(+) - SIN(-) or COS(+) - COS(-)
Figure 2-14: Sine Wave Encoder Phasing Reference Diagram
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XC2 Hardware Manual 2.3.1. Primary Encoder Inputs