Plasma 25ci
Operating manual
Page 21
25. Trouble – shooting LED
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2
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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
Cause
Remedy
Mains connected and master
switch in pos.“I“ /‘mains’
Control lamp is not lit
mains fuse has been tripped
Check mains fuse; if required, increase
fuse protection,
mains cable interruption
Check mains cable
Torch trigger is pressed down -
no function (no air)
imperfect assembly of torch head
elements(safety cut-out)
Check torch head
torch trigger defective
Check torch trigger
torch Control line interruption
Check torch Control line
fault indicators for compressed
air, temperature or safety cover
are lit
see Chapter ‘Control elements’
Pilot arc is available / however,
total failure of
cutting arc
one mains phase not connected
Check mains fuse
Check mains cable
Earth cable not connected or
without contact to work piece due
to impurities (paint etc.)
clamp earth cable to work piece or
improve contact
fault indicator is lit
see Chapter ‘Control elements’
defective torch elements
Check / exchange torch elements
cutting arc available, however,
bad cut quality/ insufficient
cutting performance
insufficient supply of compressed
air
Check air filter
wrong plasma nozzle fitted on
torch
see Chapter ’Torch equipment’
wear of the plasma nozzle or
electrode
Check / exchange plasma nozzle /
electrode
Cutting arc switch-off
insufficient cutting speed
see Chapter ‘Cutting speed’
