Troubleshooting - Scheppach PLC40 Original Bedienungsanleitung

15. Troubleshooting

The table below contains a list of error symptoms and explains what you can do to solve the problem if your tool fails to
work properly. If the problem persists after working through the list, please contact your nearest service workshop.
Problem
Indicator lamp does not lit up?
Ventilator does not work?
Warning lamp switches on?
No output current?
Output current does not de-
crease?
Air current cannot be regulat-
ed?
HF-arc is not created?
Bad ignition?
Plasma burner 8 is not ready
for operation?
Sparks fly upwards, instead of
down through the material?
Initial cut but not completely
drilled through?
26 | GB
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Possible Cause
No electrical connection.
ON/OFF switch set to off.
Power line interrupted.
Power line ventilator faulty.
Ventilator faulty.
Overheating protection switched on.
Input voltage too high.
Machine faulty.
Overvoltage protection activated.
Input voltage too low.
Connection cable cross-section too
low.
Compressed air hose damaged or
faulty.
Valve/manometer fails.
The burner switch is faulty.
Soldering point on the burner switch
or plug loosened.
Valve/manometer fails.
Burner wear parts damaged
or worn.
Check HF spark gap.
Current switch is switched off.
Air transmission is restricted.
Workpiece is not connected to the
ground terminal.
Burner sleeve does not penetrate the
material.
Burner sleeve is too far away from
the material.
Apparently material was not ground-
ed properly.
Lifting speed is too quick.
Potential connection problem.
Remedy
Check whether the device is
connected to the socket.
Check whether the device is connected to the
socket.
Allow device to cool down.
Input voltage according to type plate.
Machine must be repaired.
Allow device to cool down.
Observe input voltage according to type plate.
New connection of the hose.
Renew electrode.
Change wear parts.
Set spark gap.
Switch the current switch to "on".
Another indication of this is a green flame. Check
the air supply.
Check the connections.
Increase the current.
Reduce the distance between the burner sleeve
and material.
Check the connection for correct grounding.
Reduce the speed.
Check all connections.