Checking The Mains Voltage; General Remarks; Checking Variostar 1500/2500/3100 Mains Voltage - Fronius VarioStar 1500 Instructions De Service

Checking the mains voltage

General remarks

Checking Vario- Before fitting the mains plug, check that the welding and control transformers are
Star 1500/2500/ switched to the correct mains voltage:
3100 mains
voltage
Fig.5
Fig.6
Checking Vario-
1.
Star 2500 CSA/
2.
3100 CSA mains
voltage
Fig.7
NOTE! Inadequately dimensioned electrical installations can lead to serious
damage. The mains lead and its fuse protection must correspond to the mains
voltage and the power source current input (see technical data)
Welding transformer terminal board
Control transformer terminal board
Remove the right side panel from the power source
Compare the terminal board and printed connection diagram for the welding trans-
former and if necessary change the connection or jumper according to the circuit
diagram.
Welding transformer terminal board VST
2500 CSA
1. Remove the right side panel from the
power source
2. Compare the terminal board and
printed circuit diagram for the welding
transformer and change jumpers if
required (delta connection for 230 V
and star connection for 400 V).
3. Compare connecting terminal plate
and printed connection diagram for
the control transformer The cable
marked with a cable tie must be
connected according to the mains
voltage
4. Attach the right side panel to the
power source
Fig.8 Welding transformer connecting terminal
plate VST 3100 CSA
10