Laser Engraving & Cutting Control System Manual
5.7 FQA
5.7.1 PLT figure can’t be engraved
The graph is unclosed or overlapped. Please use the “Check Data”tool to check if there are
such occasions.
5.7.2 Size of the output of engrave/cut is not the same with the graphics
Please adjust the “Pulse Unit”.
5.7.3 When engraving, the edge is not in order
It is mainly caused by the backlash. You can adjust it as follow:
a) Draw a rectangle, set the 0.5mm in “Laser Engrave”and “Engrave Step”. Theoretically,
the engrave result will be ok, that is, edges of the odd lines are in order and edges of the even lines
are in order. But odd lines and even lines may not be in order.
b) Open “Set Engrave Options”, there are different processing parameters for different speed
range. But set values in the “Backlash”are all 0. You can set the value according to the actual
situation, both negative and positive.
c) If you require a better engrave result, choose one direction laser on. Uncheck the “Bi-Dir”
will do. But this will decrease the process efficiency.
5.7.4 Axis doesn’t move (MPC6585)
Set direct voltage 5V by a multimeter, measure the voltage between PUL and GND. Take
Y-axis as an example. Press up or down button, the normal value is about 2.8V. If it is not,
controller is damaged. Please change controller. If it is, step on.
Change the output terminals of the two drivers, and press up or down button. If X-axis is
right, then Y-axis motor is damaged. Please replace Y-axis motor. If X-axis does not move, then
Y-axis driver is damaged. Please replace Y-axis driver.
5.7.5 Axis can only move to one direction (MPC6585)
Set direct voltage 5V by a multimeter, measure the voltage between DIR and GND. Take
X-axis as an example. Press left and then right button to see if there are changes of the voltage
(higher than 2.8V or lower than 0.8V). If not, the controller is damaged. Please replace it. If yes,
check if the driver is ok.
5.7.6 Laser always off (MPC6585)
Set direct voltage 5V by a multimeter, test the voltage between LAS and GND. Press “Laser”
on the control panel to see if there are changes of the voltage (higher than 2.8V or lower than
0.8V). If not, controller is damaged, please replace it.
Moreover, set 0ms in the “Time”of the laser in the control panel PAD (laser time after you
stop pressing the laser on button). Adjust the power (0%~100%), press “Enter”and press the
“Laser”button. Measure the voltage change between DA and GND. It should be varied from
0~5V. If there is not, controller is damaged. Please replace it.
If the controller is OK, laser power supply is damaged. Please replace it.
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