Table of Contents
Advertisement
CEBORA S.p.A.
2 - SYSTEM DESCRIPTION
2.1 - Introduction.
The POWER ROD 1365 is a MMA and TIG welding system, with contact arc starting mode.
It is made up of an electronic power source (art. 252), and a set of accessories to adapt to
various applications (see list in Sales Catalogue).
The power source is controlled by a microprocessor circuit, which manages the operative
functions of the welding system and operator interface.
2.2 - Technical specifications.
To verify the technical specifications, see the machine plate, Instruction Manual, and Sales
Catalogue.
2.3 - Description of power source art. 252.
Art. 252 is a voltage power source with controlled current, consisting of a single-phase
rectifier bridge and a DC/DC mosfet converter.
Referring to the electrical diagram in par. 5.1, drawing 4.1 and table 4.2, we can identify the
main blocks that make up the power source.
The main switch (5) powers the power board (13), the only card of the power source, which
constitutes the complete power source. It contains both the power circuit and the control circuits
to manage the functions of the power source.
The power board (13) converts the alternating voltage at the mains input into direct current
voltage, adjusted according to welding needs.
The welding current is regulated by the microprocessor of the power board (13), based on the
signals received from the potentiometer on the front panel.
The microprocessor also controls the condition of the supply voltage, to activate any safety
devices necessary to protect the power source (see Error codes par. 3.4).
The front panel contains two leds for signaling over power source working condition.
The green led (C) (fig. 3.2.1) indicates power board (13) is supplied.
The meaning of the yellow led (B) is described in par. 3.4 Error codes.
The fan (9), connected to the power board (13), in reality is connected directly in parallel at
mains input power board (13) terminals, so that is ever subjected at all mains voltage variations,
without any control by the power board (13).
For power source operation is sufficient the mains voltage supply, and the only available
regulation is the welding current adjusting, making up by potentiometer (A) on frontal panel.
Up on supplied with nominal voltage, the power source executes the "lamp-test", and after
that output voltage generation starts. In this situation power source in ready to weld both in
MMA or TIG.
In TIG, the welding arc starts by contact between the electrode and the workpiece. Power
source doesn't manage the gas circuit, therefore they have to use a built-in gas valve torch (i.e.:
torch T150, art. 1567.01 Cebora).
3.302.104
4
08/11/02
Advertisement
Table of Contents
