INSTALLATION & OPERATION
Note:
• Please install the machine strictly according to the following steps.
• Before connecting machine to main supply, ensure mains supply is switched off.
After machine has been connected to mains supply, mains supply and
machine can be switched on.
• The protection class of this machine is IP21S, therefore avoid using it in rain.
Input cable connection - 250SWF
A. Connect the machine to 240V 1 Phase, ensure that the machine is
fi
tted with a plug
that is equal to or larger than the Ieff.
B. The input cable should be connected well with the corresponding power supply
connection plug or socket, to avoid oxidation.
Input cable connection - 350SWF-500SWF
A. Connect the machine to 415V 3 Phase, ensure that the machine is
fi
tted with a plug
that is equal to or larger than the Ieff.
B. The input cable should be connected well with the corresponding power supply
connection plug or socket, to avoid oxidation
MMA welding installation
A. Every welding machine matches two plugs. Insert the plug into the socket at the
bottom of the front panel, and tighten it, ensure contact good. Otherwise if the
working time is long and the working current is big, it will burn the pin and socket.
Please treat it seriously.
B. Insert the welding clamp cable into the “+” socket at the bottom of the front panel,
workpiece connect with the“-”.
C. It should be pay attention to the wire’s polarity. Generally, DC welding machines
have two connection methods: positive connection and negative connection.
Positive connection: insert the welding clamp into the “-” and the workpiece into
the “+”; Negative connection: insert the workpiece into the “-” and the welding clamp
into the “+”. Choose which connection method when welding should according to
workpiece metal and craft requirements. If select inappropriately, the electric arc will
not stable, also have some spatter, stick the welding rod and so on. In this case,
you can replace the plug conveniently to change the polarity.
Page 9
Instruction Manual for MIG-TIG-MMA-500SWF (L591)
16/12/2014
