HBS 93-10-0702A, Operating Manual, Page: 32 / 78

32 ARC 800 Order No. BA 93-10-0702A Issue 01.03.08
5.6 Switching on the Power Unit
Improper operation of the stud welding unit is
LIFE-THREATENING!
First read the safety instructions in chapters 1, 3 and 5.
Insert the primary plug of the power unit into an appropriate socket.
Switch on the power unit with the mains switch.
The digital display shows the adjusted charging voltage.
The digital display shows the adjusted welding time.
There is a luminous indication (LED) to the left of the display:
Green – on, power unit is ready for welding
Red – on, power unit is locked
• after welding, until there is electrical contact with the
workpiece
• if the power unit is overheated (the display shows 8 ... 2).
After a short cooling period, the work can continue.
Green – lights if the solenoid of the welding gun is controlled
Green – lights if the welding gun button is triggered
Green – lights if there is electrical contact between welding element
and workpiece.