Trouble Shooting List - Elettro 205 STANDARD Bedienungsanleitung

EN - Trouble shooting
Warning: machine can repair only competed and educated personal!
Symptom Reason
1/ Is the machine connected to the network?
2/ Is voltage in the socket?
3/ Is not the wire released from the clamp in the plug or
The fan is not
socket?
running, welding
4/ Main switch is damaged.
machine does
5/ Loose cabel from clamp in the machine.
not work.
6/ The control trnsformer is without voltage - the phase is
missing.
7/ Defective control transformer.
The fan is not
The fan is broken.
running.
A/ CONTACTOR DOES NOT SWITCH - THE FEED DOES NOT WORK
1/ Euro connector is not connected to the torch.
2/ Damaged switch or control cabel in the torch.
3/ On the controling transformer is not voltage - the phase
are missing.
4/ Defective coil contactor.
The fan is working,
5/ Defective thermostats (see diagram).
welding machine
does not work.
B/ CONTACTOR IS SWITCHING, FEED DOES NOT WORK
1/ Defective control electronics.
2/ Defective motor feed.
C/ CONTACTOR IS SWITCHING, FEED WORKS
1/ Broken ground cable
2/ Damaged torch of coaxial cable.
1/ On the nozzle torch is accumulated spatter.
On the nozzle torch
is welding current.
2/ Isolation nozzle is damaged.
1/ Loose knob of regulation speed of the feed.
It is not possible to
regulate speed of 2/ Damaged potenciometer.
the feeding.
3/ Damaged control electronics.
1/ Dirt on the valve.
The gas is still
2/ Incorrectly set pressure reducing valve cylinder.
leaking by torch.
3/ It is used inappropriate throttle valve.
4/ Damaged electromagnetic valve.
A/ BAD PASSING OF THE WIRE THROUGH THE WELDING TORCH OR DRAWING DIE
1/ Drawing die is too imbedded under the edge of the orifice. Drawing die can be imbedded only 1 – 2 mm under the edge of the orifice.
2/ The diameter of the opening of the drawing die does not
correspond to the used wire.
3/ Tip is very dirty.
4/ Tip is worn out.
5/ The spring in the welding torch is too short or too long.
6/ The spring of appropriate diameter has not been used.
7/ Dirty spring.
8/ Sheave for different diameter of wire.
9/ Shift sheave is worn out.
10/ Spool of the wire is being too intensely braked.
B/ OTHER CAUSES
Badly welds – it's
sticking, scorching,
shaking, large
spatter.
1/ Fallen-out phase.
2/ Wrongly adjusted working point.
3/ Wrong grounding.
4/ Wrong rectifier.
5/ Low - quality gas or wire.
6/ Faulty alteration switch of the currency.
7/ Faulty circuits.
8/ Burnt wired between el. transformer and the alteration
switch of the currency.
64 |
Resolution
Connect the machine into the network.
You must check the socket.
Check the socket or the plug.
Exchange the main switch.
Fix the cabel.
Check the socket, the plug and main power cable.
Change the control transformer.
Exchange the fan.
Connect the euro connector to the torch.
Disconnect the torch and two contacts of the bridge for controling. If all function
of the machine are working, exchange the switch, cabel or whole torch.
Exchange the fuse, check the switch, plug and main cabel, check the phase on the
contactor.
Exchange the contactor.
Exchange the thermostats.
Exchange the board.
Exchange the motor feed.
Isolation does not need to be damaged, so it is not clear - exchange the ground
cabel.
Exchange the coaxial cable.
Takeoff the nozzle and clean it, as same as clean the between piece and girder,
spray the parts by separation spray.
Take off the nozzle.
Tighten the knob of regulation speed of the feed.
Exchange the potenciometer.
Exchange the board.
Do the disassembly and purifying or exerts tension on the spring or exchange the
valve.
Set the pressure.
Use appropriate reducing valve.
Exchange electromagnetic valve.
Change tip for corresponding one.
Clean or change the tip.
Change the tip.
Change the spring.
Change the spring.
Clean the spring – it has to be cleaned every week.
Release the thrust of the shift sheave.
Clap on the sheave which corresponds to the used diameter of the wire.
Release the screw of the spool brake.
Try to connect the machine to some other circuit breaker. Change the fuse, check
the socket, the plug and the flexing cable. Check if thee are on the clamp of el.
transformer after switching of welding torch all 3 phases A0 connected B0 400 V,
A0 400 V and B0 connected C0 400 V – only three phase machines. While measu-
ring with welding machines with the alternation switch of rough voltage always in
A position. ATTENTION!, if 1 phase falls out, only voltage of about 230 V appears,
there is voltage on the clamp! Right voltage, however, is 400 V - defect is in the
contactor or in the socket or released wire on the clamp.
Check the voltage and the speed of wire feed.
Check the contact between grounding pliers and the work piece. Change the
grounding cable.
Change the rectifier.
Use different wire or gas.
Change the alteration switch.
Change the el. transformer.
Replace the faulty circuit.