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Installation for MIG/MAG proc
IMPORTANT
This machine comes fitted with a 32A rated single phase
plug for compliance to AS/NZ electrical regulations.
6.5 250R Installation for MIG/MAG process
1 Connect the gas cylinder to the regulator. Select correct
shielding gas for the application.
2 Insert the earth return lead connection into the front panel.
3 Fit the wire spool to the machine. Select correct welding wire for
application.
4 Select the appropriate feed roller to suit the wire being used
This machine comes complete with three types of wire feed
-
rollers
V groove for use with solid carbon manganese and stainless
-
steels
U groove for use with soft wires such as aluminium
-
Knurled to be used with flux cored wires
-
5 Loosen the wire feed tension screws and insert the wire. Re fit
and tension rollers ensuring the wire is gripped sufficiently so
as not to slip but avoid over tightening as this can affect feed
quality and cause wire feed components to wear rapidly.
6 Fit and tighten the torch on the output connection. Ensure
correct torch liner and contact tip are selected.
7 Polarity selection can be reversed when welding in MIG/MAG
mode. This is important for certain types of self-shielded flux
cored wires. This can be achieved by switching the work return
lead to the positive (+) terminal and the short mechanical
ess
BOC RAPTOR 200C & 250R MIG Operating manual
connector (link plug) to the negative (-) terminal for a DC
electrode negative polarity setting.
Primary current rating
This machines has a maximum primary current input (I
46 amps. To obtain full rated output, they must be:
a) connected to an approved plug and socket or
b) direct wired to an electrical circuit rated and protected for at
least 32 amps.
Consult an electrician for any additional wiring requirements.
Effective primary current
The effective primary current (I
AS/NZS 60974.1 welding power sources is 27.2 A.
Start-up Current
Due to the design of the welding power source, a high start up
(inrush) current will occur in the primary circuit when initially
energised, in the case of a MIG welder this happens when the
torch trigger is pressed. In some cases this inrush current can
cause the electrical supply circuit breaker to trip. The occurrence
of this happening will vary depending on the size and type of
circuit breaker installed, and the output settings of the welder. To
overcome this problem, a "D" curve circuit breaker can be installed
which is designed to delay its tripping time to allow for the high
start-up current of motors and transformers. Consult an electrician
for more information on circuit breaker selection.
WARNING
All electrical work must be carried out by a qualified electrician.
) rating of
1max
) based on the calculation from
1eff
19
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