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INSTALLATION AND ADJUSTMENT
Note: T
he above parameters are subject to change with the improvement of machines.
§3.2 Duty cycle & Over heat
The letter “X” stands for duty cycle, which is defined as the proportion of the time that a
machine can work continuously within a certain time (10 minutes). The rated duty cycle
means the proportion of the time that a machine
X
can work continuously within 10 minutes when it
100
outputs the rated welding current.
The relation between the duty cycle “X” and
the output welding current “I” is shown as the
right figure.
If the welder is over-heat, the IGBT over-heat
protection unit inside it will output an instruction
to cut output welding current, and brighten
the over-heat pilot lamp on the front panel. At this time, the machine should be relaxed
for 15 minutes to cool the fan. When
operating the machine again, the welding output current or the duty cycle should be
reduced.
workpiece
Welding holder
electrode
DCEP
workpiece
electrode
DCEN
Welding holder
Choosing the connection of DCEN or DCEP is based on the arc stable burning condition. The
different electrodes need different connection way. Please refer to the electrode manual.
8
§3.3 Welding polarity connection way
§3.3.1 MMA (take SKYARC one FX for an example)
The relation between duty cycle and
welding current for ONE/2050
