General Details; Basic System Principle; Construction; Functional Sequence - Fronius TransTig 1600 Operating Instructions And Spare Parts List

General Details

Basic system Designed as a primary transistor-switched welding machine, the welding rectifier
principle TRANSTIG 1600 / 1700 (DC) represents a further deve-lopment of the transistor cont-
rolled welding machine. It is especially suitable for TIG-manual-, and MANUAL ELEC-
TRODE WELDING in the DC area. The machine's compact dimensions, low weight and
modest power requirements are important advantages, both in the production and repair
fields.UP/DOWN control (continuous welding-current regulation via torch trigger) is also
integrated as standard.

Construction

Features such as its powder-coated sheet-steel housing, the way its controls are pro-
tected by a plastic frame, and its bayonet-latching current sockets all testify to the high
quality of its design. The shoulder strap makes the unit easy to move around, both within
the factory and e.g. out on building sites.
Functional se- The voltage from the mains power supply is rectified. A rapid transistor switching device
quence inverts this voltage using a frequency of 100 kHz. The welding transformer produces the
required working voltage, which is rectified and fed to the output sockets. An electronic
controller adjusts the power-source characteristic
to suit the pre-selected welding process.
Fig. 1
Operational readiness operator is lit up
Welding current control set to required value
Start of welding process
+45°C on heat dissipator
+40°C aon heat dissipator -> Cooling switches OFF
+85°C on secondary heat dissipator -> Welding current switches OFF
+80°C on secondary heat dissipator -> Welding current switches ON
Principle of the thermostatic cut-out system
-> Cooling switches ON
2