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Plasma 40i
Operating manual
Page 21
25. Trouble – shooting LED
A
!
<
<
1
2
3
The following errors are displayed by the LEDs:
•
Yellow LED (1) is light permanent:
Over temperature, is light until the unit is cooled down (frequent error)
Main power consumption to high (less error)
•
Yellow LED (2) is light permanent:
Air pressure to low, check air supply
•
Yellow LED (2) is flashing:
Safety control, torch cap not mounted or electrode is defective
•
Red LED (3) is light permanent:
Normal operation, pilot arc or welding current is active
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 LEDS are lit
see Chapter ‘Trouble-shooting LEDs’
Start-up procedure not complete
Start machine new (look chap. 20)
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 ‘Trouble-shooting LEDs’
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’