25. Trouble – shooting LED
The following errors are shown by flashing LEDs:
•
Red (3) and yellow (2) LED are flashing together:
Safety control, torch cap not mounted
•
Red (3) LED is flashing slowly:
Safety control, pilot arc longer than 4 seconds
•
Yellow (2) LED is light permanent:
Over temperature, is light until the unit is cooled down
•
Yellow (2) LED is flashing slowly:
Line under or- overvoltage, check main voltage
•
Yellow (2) LED is flashing fast:
Air pressure to low, check compressor or air filter
26. Trouble-Shooting
Malfunction/error
Mains connected and master
switch in pos."I" /'mains'
Control lamp is not lit
Torch trigger is pressed down -
no function (no air)
Pilot arc is available / however,
total failure of
cutting arc
cutting arc available, however,
bad cut quality/ insufficient
cutting performance
Cutting arc switch-off
Operating manual
<
1
2
Cause
mains fuse has been tripped
mains cable interruption
imperfect assembly of torch head
elements(safety cut-out)
torch trigger defective
torch Control line interruption
fault indicators for compressed
air, temperature or safety cover
are lit
one mains phase not connected
Earth cable not connected or
without contact to work piece due
to impurities (paint etc.)
fault indicator is lit
defective torch elements
insufficient supply of compressed
air
wrong plasma nozzle fitted on
torch
wear of the plasma nozzle or
electrode
insufficient cutting speed
A
3
Remedy
Check mains fuse; if required, increase
fuse protection,
Check mains cable
Check torch head
Check torch trigger
Check torch Control line
see Chapter 'Control elements'
Check mains fuse
Check mains cable
clamp earth cable to work piece or
improve contact
see Chapter 'Control elements'
Check / exchange torch elements
Check air filter
see Chapter 'Torch equipment'
Check / exchange plasma nozzle /
electrode
see Chapter 'Cutting speed'
Plasma 25ci
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