Design and function
Transport and installation
099-005607-EW501
20.11.2020
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5.1.10 Mains connection
DANGER
Hazards caused by improper mains connection!
An improper mains connection can cause injuries or damage property!
• The connection (mains plug or cable), the repair or voltage adjustment of the device must
be carried out by a qualified electrician in accordance with the respective local laws or nati-
onal regulations!
• The mains voltage indicated on the rating plate must match the supply voltage.
• Only operate machine using a socket that has correctly fitted protective earth.
• Mains plug, socket and lead must be checked by a qualified electrician on a regular basis!
• When operating the generator, always ensure it is earthed as stipulated in the operating in-
structions. The network created must be suitable for operating machines according to pro-
tection class I.
5.1.10.1 Mains configuration
The machine may be connected to:
• a three-phase system with four conductors and an earthed neutral conductor
• a three-phase system with three conductors of which any one can be earthed,
e.g. the outer conductor
Figure 5-8
Legend
Item
Designation
Colour code
L1
Outer conductor 1
brown
L2
Outer conductor 2
black
L3
Outer conductor 3
grey
N
Neutral conductor
blue
PE
Protective conductor
green-yellow
• Insert mains plug of the switched-off machine into the appropriate socket.
5.1.11 Switching on and system diagnosis
Each time the system is switched on, the entire welding system runs data synchronization and the system
diagnostics of the individual components. The duration of the start time (switching on up to welding readi-
ness) depends on the number of connected system components and the information to be exchanged
under these devices. This time can take from several seconds to several minutes (e.g. for the system
components interconnected for the first time). During this start phase, the system components will display
the controller type and, if applicable, software information in the welding data display (if available). This
start phase is terminated by display of the nominal valuesfor current, voltage or wire feed speed.
Operation of machine fan and coolant pump
The machine fan and coolant pump in this machine series are temperature- and state-controlled. This
ensures that subsystems of the welding machine run only when they are needed. After each switching on,
the machine fans run at full power for approx. 2 s, e.g. to blow out dust deposits.
