Migomag SIM 200 LCD - External Trouble Shooting

Operators Manual
31
External Trouble Shoong
If the following checks do not idenfy the fault condion, the equipment should be
returned to a Migomag Service agent.
Power source has no output and no wirefeed when gun trigger is pulled in:
‘ON’ indicator light is not illuminated
1. Check equipment is connected to a funconal mains power outlet.
‘ON’ indicator light is illuminated
1. The gun switch circuit may be incomplete.
• Check the gun switch for connuity with an ohm meter when the switch is
pressed. Replace if faulty
• Check the 2 pin receptacles in Euro adaptor are making contact with the\ mang
pins from the gun Euro end
2. Power source may have overheated.
• The SIM 200 welding power source incorporates an inbuilt over-temperature
thermostat which will trip if the welding load exceeds the operang duty cycle. The
‘OVERLOAD’ light will be illuminated. The thermostat will reset automacally - do not
switch the equipment o as the cooling fan will assist the reseng of the thermostat
• If problem persists aer the cool down period, call your Migomag service agent
Power source has low weld output
1. Check all electrical connecons in the welding current circuit, including weld
cable, work clamp and gun/cable assembly.
Circuit breaker trips during welding
1 Check the rang of the mains supply circuit breaker. The SIM 200
should be supplied from a 36 Amp or larger circuit breaker.
Unsasfactory Welding Performance and Results
Errac arc characteriscs caused by poor wirefeed
Errac wirefeed is the MOST LIKELY cause of failure in all Gas Metal Arc Welding. It should
therefore be the rst point checked when problems occur.
1. Refer to the points in ‘Wirefeed’ in Secon 5.
2. Check if the consumable wire is slipping in the drive rolls. Replace the feed roll if it is
the incorrect size or is worn.
3. Check that gun cable liner is not too short and is ed correctly. Refer to page 28 for
ng instrucons.