GF Welding Weld334m - Connections for Main Power Supply

Weld334m - User’s manual
16
3.1.2 Connections for main power supply.
Diagrams for control device power supply are illustrated below.
•
Ac input taken from the power line of the welding transformer.
1
2
3
4
WELD334
PS
P21
Firing device
SCR
1
2
Welding transformer
380Vac line
Power
supply
Pulse
control
Power transformer
14,4-32,4Vac
•
Dc supply
1
2
3
4
WELD334m
PS
P21
Firing device
SCR
1
2
Insulation transformer
Welding transformer
380Vac line
Power supply
External Sync.
Pulse
control
12-33Vac
24Vdc external power
feeder
18-36Vdc
•
Ac supply taken from a line separate from the welding transformer power supply.
1
2
3
4
WELD334m
PS
P21
Firing device
SCR
1
2
Vac privileged power
supply
Insulation transformer
Welding transformer
380Vac line
Power supply
External
sync.
Pulse
control
12-33Vac
14,4-32,4Vac
Power supply transformer