Plasma 33 H
Operating Manual
Page 10
10. Error messages of the control PCB
The control PCB has the possibility to find some errors in the working cycle. These errors
are shown below:
Errors in the machine:
The LED D4 ‚BT‘ indicates why the microprocessor can not turn on the machine or why
the machine is turned off.
The LED D4 ‚BT‘ shows the errors by flashing.
There are 2 normal- and 4 error states:
Number of flashes
Description
Normal functions:
no light
Torch trigger is not pressed
permanent light
Torch trigger is pressed
Error functions:
1x flash
The cutting transformer has turned off, no cutting current
2x flash
The reed contact has turned off, no cutting current
3x flash
Reed contact is faulty, machine can not turn on
4x flash
Pilot time longer than 2 seconds, safety turn off
Every flashing sequence repeats after a short interrupt.
The error message (led flashing) is shown until the torch trigger is pressed again.
In normal function, the PCB always shows one of the possibilities in the error table.
Errors in the microprocessor:
If the microprocessor himself has a problem, the
LED D3 ‚OK‘ has no light or a permanent
light.
In normal function, the LED flashes with a frequency of 1Hz.
