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4.1 Connections of the power unit
The power unit is designed for connection of the welding
gun C0 or C1.
.
Caution: If welding guns from other manufacturers are
connected to the power unit, no guarantee regarding
safety and functionality of the welding system can be
given. TWS accepts no liability for damage caused by the
use of guns from other manufacturers.
Warning: The power unit NOMARK 65/99 must be
switched off before carrying out connection work. The
main switch must be in the position "0".
Lay the cable such that it does not represent a tripping
danger.
4.1.1 Connecting the
earth cable
Connect the earth cable directly to the workpiece or to the
workpiece holder (welding bench, welding grate, etc.)
provided.
Note: Steel structures, pipes, etc. may not be used as
current conductor if they are not themselves the workpiece
that is to be welded.
Warning: Observe all applicable safety regulations and
take
suitable safety precautions.
Note: The welding current circuit may not be earthed.
Exception:
the workpiece itself is earthed by necessity (steel
structure, shipbuilding, pipes, etc.).
• The welding site must lie between the two earth clips:
do not place the two earth clips too close to the welding
site and – if possible – position them symmetrically and
equidistant to the welding site. In this way you avoid a
magnetic arc blowing action (sideways deflection of the
arc).
• Plug the earth cable plug into the connection socket
marked .
• Fasten the earth cable plug firmly in place by turning it
strongly clockwise.
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