Soham Impex SI-TIG-300, Operating Manual

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Warning! An electric shock can be fatal. Before doing any work on the machine:
- Switch it off and unplug it from the mains
- Put up a clearly legible and easy-to-understand warning sign to stop anybody inadvertently
switching it on again
- Check to make sure the electrically charged components (e.g.capacitors) have been
discharged.
- Bolts in machine case also work for ground connection. Never use other bolt that can not
work for ground connection.
Note! The flowing troubles and causes are uncertain. However, during the process of MIG
Pulse and the normal using conditions, that might happen.
•
Poor penetration Travel speed too fast Too much welding current, reduce welding amperage
•
Porosity in weld Electrodes are damp Arc too long, get electrode closer to work

Error code display
This series of machines have automatic protection and error code display function. Relevant Cause &
Remedy can be found according to below Error codes,
Error code Trouble Cause Remedy
E01 Over-heat protection
The welding machine is
over heat; or Temperature
Relay fault
Shut down the
welding machine and
wait for cooling; or
replace Temperature
Relay
E02 Over-current protection
Short circuit of Output;
Current Sensor fault
Check output cable
and replace Current
Sensor
E04
Water-cooling is
abnormal
No circulating water in water
cooling system
Check water flow and
repair
E05
Torch fault when turn on
the machine
The torch trigger may be
short , No current output
after pressing torch trigger
for more then 2s
Turn off the machine,
reset or release the
torch trigger
Displayed error code
Important! If any error message that is not described here appears on the displays, then the fault is
one that can only be put right by a service technical. Make a note of the error message shown in the
display, and the serial number and configuration of the power source, and get in touch with our
after-sale service, giving them a detailed description of the error.

Power source trouble shooting CHART
Trouble Remedy
Power source cannot
work
NO LED Glow
•
Check the mains supply lead, make sure that the mains plug is
plugged in