Delixi Drives WS-160MX Manual page 9

It is recommended to select cable with larger section in order to reduce voltage drop while
using longer output cable. If welding cable is too long, it may affect the arcing performance and
other system performance of welding machine (e.g. high frequency arcing performance is reduced
or system operation is abnormal). Therefore you should select the cable with recommended length.
(I) Connection for input cable
1) Each welding machine is equipped with one power cable. Connect the power cable to
corresponding power voltage according to the input voltage of welding machine. Do not make
wrong connection.
Power system will be switched into over voltage protection status due to welding operator's
negligence to connect single phase AC 220V to AC 380V. Please cut off and reconnect power cable
to AC 220V then restart the machine.
The input voltage for WS160/200MX is single phase 220V.
2) Ensure the connections between power cable and power switch or terminals are good and prevent
the effect of oxidation. Measure the power voltage whether it is in the range of fluctuation as
necessary.
(2) Connection for output cable
WS-160MX/200MX/250MX/315MX/400MX：
Connection for argon arc welding:
1) Gas source: connect argon pipe with the copper nozzle of argon which is located at the back of
welding machine. Gas supply pipeline consists of gas bottle, relief flow meter and pipe.
Connecting part for gas pipe should be fixed by clamp or other matters in order to prevent
leakage and the ingress of air.
2) The conductive section of grounding cable for body shell should be not less than 4 mm
a cable to ground at the grounding screw which is located at the back of welding machine in
order to prevent static electricity or leak electricity.
3) Connect argon arc welding torch according to attached figure.
4) Fix quick plug of grounding cable with the quick socket on welding machine panel with the mark
of "+"by screwing in clockwise, the other end of cable clamps with work piece.
5) Manual welding: each welding machine is equipped with a pair of quick plugs, the black quick
plug connects with welding torch and the red one connects with grounding clamp. Use hexagonal
plate to fix and ensure good connection between double cables (welding torch and grounding
cable) and quick plugs. Quick plug may be burned out due to the negligence of this point by
some welding operators.
6) In order to ensure good connection, screw the quick plug in clockwise with force after it connects
with quick socket. Otherwise the plug and socket may be burned out for larger current and longer
operating time.
Note: take notice of the polarity for cable connection. General connection for DC welding machine
consists of positive polarity and inverted polarity. Positive polarity connection i.e. work piece
connects with positive electrode and welding torch to negative electrode. On the contrary, inverted
polarity connection i.e. work piece connects with negative electrode, welding torch to positive
electrode.
IV. Installation and Operation
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. Connect