Configuration Of Resolution, Speed And Acceleration - CS-Lab CSMIO/IP-A Manual

10.7 Configuration of resolution, speed and acceleration

Before we start working, it is absolutely necessary to cor-
rectly set resolution (so called scaling) of axes and to set
their max. speed and acceleration -in the Mach3 program -
„Config/Motor Tuning" menu. In the window, first select an
axis you want to configure, next enter parameters and
click „SAVE AXIS SETTINGS". Now you can select and set
the next axis.
If we forget to click on „SAVE AXIS SETTINGS" all the changes will not be saved.
For correct axis scaling you must know how many steps falls on a unit (millimeter, inch or degree, and if
the axis is set as linear or angular). In case of CSMIO/IP-A steps number is pulses number of encoder per
motor rev (with all edges). You should also include eventual electronic pulley in servo amplifier.
To explain how to calculate we present an example below:
A linear axis
•
(with all edges).
Servo drive is configured without electronic pulley.
•
To transfer the drive there was a ball screw used - pitch
•
No ratio between motor and a screw.
•
So there are 10000 pulses per motor rev and 10mm feed rate. Dividing these values 10000p/10mm we get
1000p/mm value, which we enter into „Steps Per" box in configuration window.
In „Velocity" area, we set an axis speed. If we are using millimeters as an unit then speed is shown in
mm/min, if we use degrees - degree/min, if inch - inch/min. Max. speed value is very individual and de-
pends on what motors, drives etc. were used. For the first tests, we recommend to enter relatively small
value e.g. 2000mm/min, in case something went wrong, we will always have enough time to press an
emergency button E-STOP.
In „Acceleration" area, we define acceleration for an axis. At the beginning, we recommend to enter some-
2
thing about 400mm/s . Later you can set this parameter experimentally by assessing the machine work-
ing.
Remember to click „SAVE AXIS SETTINGS" for each axis after finished edition. Perform the configuration
as follows:
Open „Motor Tuning" window Select axis („Axis Selection") Enter the parameters"SAVE AXIS SET-
TINGS"Select the next axisetc. Click „OK" and close the window.
„Step pulse" and „dir pulse" areas do not matter for CSMIO/IP. They are used to control via LPT port and
they define width and STEP/DIR pulse time.
C S - L a b s . c . – C S M I O / I P - A - C N C c o n t r o l l e r
is driven by servo
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motor with 10000
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p/rev encoder
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