Plasma CUTTER 150
Operating Manual Page 14
12. 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.
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