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Product Nomenclature and Function
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CPSN-CNT-3201I Reference Manual (Hardware)
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21
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3.
Types and Operations of Pulse Signals
1.
Types of Pulse Signals
The following types of pulse signals (operation modes) can be set.
2-phase Input, Synchronous Clear, Multiply by 1
2-phase Input, Synchronous Clear, Multiply by 2
2-phase Input, Synchronous Clear, Multiply by 4
2-phase Input, Asynchronous Clear, Multiply by 1
2-phase Input, Asynchronous Clear, Multiply by 2
2-phase Input, Asynchronous Clear, Multiply by 4
Single-phase Input, Asynchronous Clear, Multiply by 1
Single-phase Input with Gate Control, Asynchronous Clear, Multiply by 1
Single-phase Input with Gate Control, Asynchronous Clear, Multiply by 2
2.
Pulse Input
2-phase Input
Two-phase pulse input consists of a phase A pulse (advanced signal) and a phase B (delayed signal)
pulse that have 90° of phase difference.
If the phase Z (reference position signal) is used, a Z pulse will reset count value of the two-phase
pulse input to zero.
* Count operation for incremental counting in the CW direction.
* When decremental counting in the CW direction is set, the PC Card performs decremental counting
at the rising edge of the phase-A signal.
* The minimum phase difference between phases-A and B is 400 nsec.
Counting is not performed normally if the phase difference is less than 400 nsec.
CW: Clock Wise
CCW: Counter Clock Wise
Phase-A
(Phase-A/UP)
Phase-B
(Phase-B/DOWN)
Phase-Z
(Phase-Z/CLR)
Count value
Phase-A difference of
400 nsec is required.
