36
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Operation Theorem
4.1.10 Home return mode for one axis
4.1.11 Manual pulser mode for one axis
4.1.12 Timer Mode
4.1.13 Pulser Interpolation
4.1.1
Pulse Command Output
The PPCI7443 uses pulse command to control the servo / stepper motors
via the drivers. The pulse command consists of two signals: OUT and DIR.
There are two command types: (1) single pulse output mode (OUT/DIR);
and (2) dual pulse output mode (CW/CCW type pulse output). The software
function: _7443_set_pls_outmode() is used to program the pulse
command type.
The modes vs. signal type of OUT and DIR pins are as
following table:
Mode
Output of OUT pin
Output of DIR pin
Dual pulse output
(CW/CCW)
Pulse signal in plus
(or CW) direction
Pulse signal in minus
(or CCW) direction
Single pulse output
(OUT/DIR)
Pulse signal
Direction signal (level)
The interface characteristics of these signals could be differential line driver
or open collector output. Please refer to section 3.1 for the jumper setting
of signal types.
Single Pulse Output Mode(OUT/DIR Mode)
In this mode, the OUT signal is for the command pulse (position or velocity)
chain. The numbers of OUT pulse represent the relative “distance” or
“position”, the frequency of the OUT pulse represents the command for
“speed” or “velocity”. The DIR signal represents direction command of the
positive (+) or negative (-). This mode is the most common used mode.
The following diagrams show the output waveform. It is possible to set the
polarity of pulse chain.
Содержание PPCI7443
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Страница 27: ...Single Connections 19 which are equipped with 1 differential line driver or 2 open collector output...
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