OPERATOR’S MANUAL
·
MIG/MAG PULSE SERIES
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is especially important when welding under low current. Users may adjust it according to their own
technical requirements or operation habits.
Spot welding time
It is located at “peak segment-voltage column-time (s)”, and it makes sense only in spot welding.
11) Downslope time
It is located at “downslope segment-voltage column-time (s)”. The craters can be filled by adjusting
this parameter properly in non programmed 4T mode.
12) Crater current
It is located at “crater segment-current column-current (A)”, and it varies with the change of the
crater speed. Therefore, it is unnecessary to set this parameter when the crater speed is set properly.
13) Crater speed
It is located at “crater segment-current column-wire feed speed (m/min)”, and it varies with the
change of the crater current. Therefore, it is unnecessary to set this parameter when the crater current
is set properly.
14) Crater voltage
It is located at “crater segment-voltage column-voltage (V)”, and it varies with the change of the
crater current or crater speed. Beside, this parameter can be adjusted independently within a certain
range.
15) Post-flow time
It is located at “postposed segment-voltage column-time (s)”, and users can set it according to their
own technical requirements.
6.4 Parameters in pulsed MIG/MAG
There are 16 adjustable parameters in pulsed MIG/MAG welding, namely pre-flow time, initial current,
initial speed, initial voltage, upslope time, peak current, peak speed, peak voltage, thickness of
base metal, arc characteristic, spot welding time, downslope time, crater current, crater speed, crater
voltage and post-flow time. 9 parameters of them, namely peak current, peak speed, peak voltage,
thickness of base metal, arc characteristic, spot welding time, crater current, crater speed, crater
voltage can be operated either through the control panel on the power supply part or through the control
panel on the wire feeder part, and other parameters can be operated only through the control panel
on the power supply part. Besides, Select the desired welding mode, base metal type, gas type, welding
wire type and operation mode before any operation on parameters.
For most of the parameters in pulsed MIG/MAG, see the contents of 6.3 section for reference. While
a few of them are especially described as below.
1) Voltage type parameters
Voltage type parameters include initial voltage, peak voltage and crater voltage, and they are used
for adjusting the arc length. When voltage is high, arc length will be long, and when voltage is low,
arc length will be short.
2) Arc characteristic
It is located at “peak segment-current column-arc characteristic (-/+)”. Besides the function
described in standard MIG/MAG welding, fine adjustment of arc length can be achieved through this
parameter.
Initial
Current/Voltage
Time
Upslope
Peak
Downslope
Crater
Figure 6.3 Welding current and welding voltage in pulsed MIG/MAG
Summary of Contents for MIG 350P
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