5 OPERATION
0463 340 030
- 18 -
© ESAB AB 2018
5.3
Connection of welding and return cable
The power source has two outputs, a positive terminal (+) and a negative terminal (-), for
connecting welding and return cables. The output to which the welding cable is connected
depends on the welding method or type of electrode used.
Connect the return cable to the other output on the power source. Secure the return cable's
contact clamp to the work piece and ensure that there is good contact between the work
piece and the output for the return cable on the power source.
For MMA welding, the welding cable can be connected to the positive terminal (+) or
negative terminal (-) depending on the type of electrode used. The connecting polarity is
stated on the electrode packaging.
Recommended maximum current values for connection set cables
I
max
Cable area
Cable length
Note
450 A (60% duty cycle)
70 mm
2
2 - 35 m
(6.6 ft - 114.8 ft)
19 pole
350 A (100% duty cycle)
550 A (60% duty cycle)
95 mm
2
2 - 35 m
(6.6 ft - 114.8 ft)
19 pole
430 A (100% duty cycle)
450 A (60% duty cycle)
70 mm
2
2 - 35 m
(6.6 ft - 114.8 ft)
19 pole, water
350 A (100% duty cycle)
550 A (60% duty cycle)
95 mm
2
2 - 35 m
(6.6 ft - 114.8 ft)
19 pole, water
430 A (100% duty cycle)
Duty cycle
The duty cycle refers to the time as a percentage of a ten-minute period that you can weld or
cut at a certain load without overloading. The duty cycle is valid for 40 °C / 104 °F, or below.
5.4
Turning the mains power on/off
Turn on the mains power by turning switch to the ”I” position, see 1 on the picture above.
Turn the unit off by turning the switch to the ”O” position.
Whether the mains power supply is interrupted or the power source is switched off in the
normal manner, welding data will be stored so that it is available next time the unit is started.
CAUTION!
Do not turn off the power source during welding (with load).
5.5
Fan control
The power source has a time control that means that the fans continue to run for 6.5 minutes
after welding has stopped, and the power source switches to energy-saving mode. The fans
start again when welding restarts.
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