AOTAI ATIG315P, Руководство по эксплуатации

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8
1-GENERAL REMARKS
1-1 Power source features
This series pulse TIG welding machine includes 315A, 400A and 500A types, can
perform DC TIG, Pulse TIG, and SMAW processes. This series welding machines enjoy
reasonable static characteristic and sound dynamic characteristic.
Features and benefits:
-MCU controlled technology
-Self-diagnostic function with error code display
-Precise pulse control, good welding performance
-Pre-gas, post-gas, up-slope time, down-slope time, adjustable parameters, easy to
control
-Pulse frequency, pulse ratio, pulse width can be adjusted to improve the welding
performance
-Soft switch technology, high efficiency, high power factor.
1-2 Functional principle
This series welding machines apply IGBT HF inverter technology. 3- phase input volt is
rectified, then transformed into HF AC by the inverter which includes IGBT, etc., reduced
by HF transformer, rectified and filtered by HF rectifier, then output. After this process,
the welding machine dynamic response ability has been greatly improved, size and
weight of transformer and reactor are reduced noticeably, and whole machine efficiency
has been improved.
The design of control circuit makes the welding machine enjoy strong ability against
power grid fluctuation and perfect welding performance. Welding machine has the
following features: easy arc-starting, stable arc, good welding seam formation and
capability of continuous welding current regulation. The schematic diagram is as shown
in Fig. 1-2-1:
Fig. 1-2-1: Schematic diagram