5 OPERATION
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© ESAB AB 2016
5.7 VRD (Voltage Reducing Device)
The VRD function ensures that the open-circuit voltage does not exceed 35 V when welding
is not being carried out. VRD LED is lit when VRD function is activated. The VRD function
must be activated with ESAT by a qualified service technician.
The VRD function is blocked when the system senses that welding has started.
5.8 Remote control unit
For more information about the operation of the remote control unit, see the instruction
manual for the control panel.
5.9 MIG/MAG and self shielded cored wire welding
An arc melts a continuously supplied wire. The weld pool is protected by shielding gas. For
MIG/MAG and self shielded cored wire welding, the power source is supplemented with:
• wire feed unit
• welding torch
• connection cable between power source and wire feed unit
• shielding gas bottle
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