3 Function
specification
3/3
Item Symbol Description
K1
Excess temperature
Thermal monitors in the power unit trigger at excess temperature and the
excess temperature control lamp comes on. After cooling, welding can proceed
without any further measures.
Collective interference:
If the collective interference signal light is on, the power unit is automatically
switched off. Because some interference is short-term and one-off (e.g. mains
voltage surges), the signal light will go out again and the welding machine is
ready for welding. If the collective interference signal light continues to be on
after an appropriate waiting time, see the chapter on troubleshooting.
Water deficiency (optional):
Indicates a water deficiency in welding machines cooled by liquids.
L1
S
S
T 2.15 only:
Indicates that welding is possible in environments with increased electrical risks
(e.g. in boilers).
If the LED is off, the machine must be switched off and the service department
must be informed.
