WIA Weldmatic 396, Руководство оператора

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Weldmatic 396
Model No CP126-2, Iss A 05/09
13
There is wirefeed but no output
voltage when gun switch is closed:
1 Power source may have overheated.
• The Weldmatic 396 welding power
source incorporates an in-built over-
temperature thermostat which will
trip if the welding load exceeds the
operating duty cycle. The thermostat
will reset automatically - do not switch
the equipment off as the cooling
fan will assist the resetting of the
thermostat.
• If problem persists after the cool down
period, call your WIA service agent.
2 There may be broken wires in the control
cables between the power source and the
wirefeeder.
Power source has low weld output
1 Check all electrical connections in
the welding current circuit, including
weld cable, work clamp and gun/cable
assembly.
2 Have the primary supply checked by a
qualified electrician.
Circuit breaker trips instantly when
mains voltage is applied
1 Check the rating of the mains supply
circuit breaker. The Weldmatic 396 should
be supplied from a 25 Amp or larger circuit
breaker.
9 External Trouble Shooting
If the following checks do not
identify the fault condition, the
equipment should be returned
to a WIA Service agent. Phone
1300 300 884 for details of your
nearest service agent.
Power source has no output and no
wirefeed when gun switch is closed :
Digital meters are off
1 Check equipment is connected to a
functional mains power outlet. Test outlet
using a known working appliance.
2 Check the equipment is switched on, ie
‘Coarse’ switch is in position 1,2 or 3.
3 Check the circuit breaker at the front of
the power source (press to reset).
Digital meters are on
1 Check the interconnecting lead is securely
plugged in at the welder and that the
lead is not damaged.
2 The gun switch circuit is incomplete.
• Check the gun switch for continuity
with an ohm meter when the switch is
pressed. Replace if faulty.
• Check the 2 pin receptacles in MIG
adaptor are making contact with the
mating pins from the gun end.