Chapter 13 Installation and Debugging
111
Chapter 13 Installation and Debugging
13.1 Horizontal / Vertical Pulses Number Setting
Horizontal / vertical pulses number setting
Here, horizontal / vertical pulses number is also introduced in the section of 7.5
system parameter. It’s easy to set the number of horizontal (vertical) pulses. Before
drawing a line, assume one value of horizontal pulses XPls and one value of vertical
pulses YPls, set these two parameters and then save the settings. Enter the manual
interface, choose fixed moving function. Assume the fixed distance is Amm. Move A
mm horizontally, and the actual length of the line is B mm (which is generally not
equal to A), then we can calculate the horizontal pulses number. The equation is
. After calculating, replace the outcome with the assumptive Xpls(take three
decimal places at most). Similarly, move C mm vertically, the actual length is D mm,
then the vertical pulses number is
.
Requirement of pulses number：
The maximum frequency of output pulses from the system is 160 KHz. It is not
possible to work properly according to the order if the pulse frequency is higher than
160KHz. Assume the pulse number is x, the highest speed is M
v
(mm/min), then
(M
v
*x/60) should be less than 160000.
For example, the pulse number is x=2000, the highest speed is
M
v
=12000(mm/min).Because of M
v
*x/60=12000*2000/60=400000>160000, the
speed of 12000(mm/min) is not reachable. If we set x to be 500, then M
v
*x/60 =
12000*500/60 = 100000<160000, at this time it can operate at the maximum rate of
12000mm/m.
While in principle the number of pulses can be set to a large value, in fact it
should be set between 150 and 1200. Because the frequency is too high, some drives
can’t work very well, the motor sometimes will be out of synchronism. On the other
hand, the performance of anti-jamming is of foreign interference is poor and the
external interference is strong.
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