Advantech PCI-1240, Руководство пользователя

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35 Chapter 3
3.15.3 Interpolation Driving
Figure 3.23: Timing diagram of Interpolation Driving
• After interpolation command is enable, the first pulse will be outputted
in 775 nsec.
• If using pulse/direction mode, direction signal (nP-P) is valid in ± 125
nsec of high-level pulse signal.
3.15.4 Input Pulse Timing
Quadrature Pulse of Encoder Input
Figure 3.24: Timing diagram of Quadrature Pulse of Encoder Input
• The minimum difference time between A/B phases is 200 nsec.
UP/DOWN Pulse Input
Figure 3.25: Timing diagram of UP/DOWN Pulse Input
• Minimum UP/DOWN pulse width: 130 nsec.
• Minimum Increased/Decreased Pulse Interval: 130 nsec .
• Minimum UP/DOWN pulse period: 260 nsec.