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OPERATION
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MMA
Before starting any welding activity ensure that you have suitable eye protection and
protective clothing as, welding rays, spatter, smoke and high temperatures produced in the
process may cause injury to personnel.
Also take the necessary steps to protect any persons within the welding area that may cause injury to.
MMA welding
Select MMA welding mode by selecting the MMA mode when in the
home screen and this is acknowledged by going into the MMA screen
and noting the MMA symbol is shown in the top left hand corner of the
screen (circled red) in the image top right.
When in MMA mode you can select and adjust welding current as well
as hot start current and arc force parameters (which are displayed via
the lower section of the screen in the image right) respectively as described below.
MMA Welding Current Adjustment
MMA welding current can now be adjusted via the central
control adjustment dial and rotating this dial either clockwise
or anticlockwise which will increase or decrease the welding
amperage shown on the screen (shown in image top right).
Please Note:
Welding current can be adjusted out during welding.
When in MMA mode, you can also adjust various MMA
parameters such as hot start and arc force and these can be
adjusted via the parameter ‘P’ mode.
By pressing and then rotating the central control dial you can
scroll to the parameter function to set back
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end MMA parameter
values.
Hot Start Current Adjustment
To select MMA hot start, rotate the central control dial until the hot start icon is highlighted green then
press the central dial button, this will open the hot start adjustment display window.
The hot start adjustment range is 0 ~ 60 amps and the factory setting is 30 amps.
Arc Force Current Adjustment
To select MMA arc force, rotate the central control dial until the arc force icon is highlighted green then
press the central dial button, this will open the arc force adjustment display window.
The arc force adjustment range is 0 ~ 100 amps and the factory setting is 40 amps.
VRD indicator
By default the screen will display and show the MMA voltage (see image top right). In MMA mode,
the VRD LED will be lit to indicate that VRD is active and the machine output voltage is under 12V.
PLEASE NOTE:
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The operator should set the parameters that meet the welding requirements.
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If the selections are incorrect this may lead to problems such as an unstable arc, spatter or sticking
of the welding electrode to the work piece.
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If the secondary cables (welding cable and earth cable) are long, select welding cable with a larger
cross
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section to reduce the voltage drop.
A
B
