OPTIMUM
M A S C H I N E N - G E R M A N Y
Malfunctions
29 / 11 / 2006
Page
17
Malfunctions CNC Controller III and VI ; Version 2.0.1
©
2006
GB
8.2
Definition of the axes on the machine tools
For machine tools right-turning, right-angled coordinate systems are being used. Herewith the
moves on the machine are described as relative moves between the tool and the workpiece.
The origin of the coordinate system is the point of origin of the machine. Here all axis are at the
position zero. This point only determines a reference point.
Fig.8-7: Coordinate system lathe and milling machine
9
Malfunctions
9.1
The red LED on the CNC controller flashes or flickers.
The operating current is set too high.
Slightly turn back the operating current on the potentiometer anti-clockwise.
The correct function is always given if the blue LED flashes when the corresponding axis is
being triggered.
“Potentiometer control board V2“ on page 11
9.2
All axes are no longer triggered.
In case of a short circuit or excess voltage or in case of a defect on the control board, all 3 axes
will be switched off ! This way a damage of the workpiece will be avoided as far as possible.
The red LED shows which axis is concerned.
“Replacing a control board“ on page 14
9.3
Step motor does not run
Possible cause: The CNC controller has no tension.
Remedy: Is the illumination of the main switch of the CNC controller off? Check the plug and
the fine-wire fuse on the CNC controller.
Possible cause: The machine is not cleaned from corrosion protection agent. Therewith the
breaking-loose point is too high.
Remedy: Remove the corrosion protection agent on the machine, clean the machine and grease
it again.
Possible cause: The terminal strips on the machine are fastened too tight. Therewith the
breaking-loose point is too high.
Remedy: Better adjusting the terminal strips.
Possible cause: The transverse rate is set too high, motor current is selected too low.
Remedy: Reduce transverse rate, increase motor current a little.
+ Z
+X
+Z
+Y
+X
