INSTALLATION AND ADJUSTMENT
12
When the power supply voltage is over the safe work voltage, there are over voltage and
under voltage protection inside the welder, the alarm light will on, at the same time, the current
output will be cut off.
If the power supply voltage continually goes beyond the safe work voltage range, it will
shorten the welder life-span. The below measures can be used:
Change the power supply input net. Such as, connect the welder with the stable power supply
voltage of distributor;
Induce the machines using power supply in the same time;
Set the voltage stabilization device in the front of power cable input.
§3.5 Polarity Connection
（
MMA
）
MMA (DC): Choosing the connection of DCEN or DCEP according to the different electrodes.
Please refer to the electrode manual.
MMA (AC): No requirements for polarity connection.
