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equipment. When power voltage moves between
±
15% of rated voltage, it still can
work normally.
When use long cable, in order to prevent voltage form going down, bigger section
cable is suggested. If cable is too long, it may affect the performance of the power
system. So we suggest you to use configured length.
1
、
Make sure intake of the machine not blocked or covered, lest cooling system
could not work.
2. Use inducting cable whose section is not less than 6 mm
²
to connect the
housing to the ground. The way is from the ground-connecting screw at the back to
the earth device.
3. Correctly connect the arc torch or holder according to the sketch. Make sure the cable,
holder and fastening plug have been connected with the ground. Put the fastening plug into
the fastening socket at the “
-
“polarity and fasten it clockwis
e.
4. Put the fastening plug of the cable to fastening socket of “+” polarity at the front
panel, fasten it clockwise, and the earth clamp at
the other terminal clamps the work piece.
5. Please pay attention to the connecting
polarity, DC welding machine has two
connecting ways: positive connection and
negative connection. Positive connection:
holder connects with “
-
“ polarity, while work
piece with the “+”polarity. Negative
connection: work piece with the “
-
“ polarity,
holder with the “+” polarity. Choos
e suitable
way according to working demands. If
unsuitable choice, it will cause unstable arc,
more spatters and conglutination. If such
problems occur, please change the polarity of the fastening plug.
6.According to input voltage grade, connect power cable with power supply box of
relevant voltage grade. Make sure so mistake and make sure the voltage difference
among permission range. After the above job, installment is finished and welding is
available.
If distance of work piece and machine is too far (50 - 100m), and the cables
(torch cable and earth cable) are too long, please choose cable of bigger
section to minimize the reduction of the voltage.
1PH 240V
Earth
Electrode Holder
Electrode
Lead '-'
Earth Lead +
Power Supply Cord
