STAYER WELDING PLASMA Série Mode D'emploi page 22

Introduction
The present product is an equipment for cutting metal manually
by plasma produced by an electric arc and pressurized air.
The equipment applies high-frequency energy transfer by
advanced inverter technology for maximum operation quality
and minimum weight. All equipments have components of
industrial category, components sized with overvoltage and
overcurrent resistance reserve and double-shielded EMI filters,
and microprocessor smart controls. Solid construction under
IEC/EN 60974-1 and the RoHS Directive. Maximum quality
components, 600V switches, 450V/1400V capacitors and cutting
edge HF ferrite transformers.
Compared to traditional technology based on transformers
operating at 50/60Hz public mains frequency, the WELDING
Inverter technology has a higher power density per weight
unit, is more economical and has the possibility of accurate,
instantaneous and automatic control of all welding parameters.
As a result, you will produce a better cut with greater facility
with an equipment which is less consuming and lower weight
compared to traditional equivalent equipments.
The whole product range is controlled by microprocessor for
maximum safety, performance and easiness of use (smart
equipments).
The whole product range is adapted for use with stabilized
motor-generators.
1. Explanation of regulatory markings
23
45
6 8
11
12
7 9
13
14 15
18
Pos. 1
Name and address and brand of the manufacturer,
distributor or importer.
Pos. 2 Identification of the model.
Pos. 3 Model traceability.
Pos. 4
Symbol of the welding power source.
Pos. 5 Reference to regulations complied
with by the equipment.
Pos. 6 Symbol for the welding process.
Pos. 7
Symbol for use in environments with increased
risk of electric shock.
Pos. 8 Symbol for the welding current.
Pos. 9 Nominal no-load output tension.
Pos. 10 Nominal output voltage and current range.
Pos. 11
Duty cycle of the power source.
Pos. 11a Duty cycle at 45%.
Pos. 11b Duty cycle at 60%.
Pos. 11b Duty cycle at 100%.
Pos. 12 Nominal cut-off current (I2).
Pos. 12a Current value for 45% duty cycle.
Pos. 12b Current value for 60% duty cycle.
Pos. 12c Current value for 100% duty cycle.
Pos. 13 Load tension (U2).
Pos. 13a Load tension for 45% duty cycle.
Pos. 13b Load tension for 60% duty cycle.
Pos. 13c Load tension for 100% duty cycle.
Pos. 14 Symbol for power supply.
1
10
11a 11b 11c
12a 12b 12c
13a 13b 13c
16 17
ENGLISH
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Pos. 15
Nominal value of supply tension.
Pos. 16 Maximum nominal supply current.
Pos. 17 Maximum effective supply current.
Pos. 18 IP degree of protection.
2. Safety instructions
READ THE INSTRUCTIONS.
• Read the User Manual completely and understand it before
using or giving service to the unit.
• Only use genuine manufacturer's parts.
2.1. Symbols used.
DANGER! - Indicates a dangerous situation which,
when not avoided, will lead to death or serious
injury. Possible hazards are shown in the attached
symbols or explained in the text.
Indicates a dangerous situation which, when not
avoided, will lead to death or serious injury. Possible
hazards are explained in the text.
2.2. Arc-welding hazards.
Only qualified persons may install, operate,
maintain and repair this machine.
During its operation, keep anyone away, especially
children.
►ELECTRIC shock may kill you.
Touching live current carrying parts may cause fatal electric
shock or serious burns. The working and electrode circuit is
always electrically live when the machine output is on. The input
circuit and the inner circuits of the machine are also electrically
live when the machine is on. When welding with automatic or
semiautomatic equipment, the wire, the reel, the frame containing
the supply rolls and all metal parts touching the welding wire are
electrically live. Incorrectly-installed or not-earthed equipment is
a very serious danger.
• Do not touch electrically live parts.
• Use dry insulating gloves without openings, and protection on
your body.
• Isolate yourself from the work and from the ground by using
carpets or covers that are sufficiently large to prevent any
physical contact with the work or ground.
• Do not use the AC output current in humid areas, when your
movement is restricted or when in risk of falling down.
• Use an AC output ONLY when required by the welding process.
• When an AC output is required, use a remote control if there is
one present in the unit.
• Additional safety precautions are required when any of the
following dangerous electric conditions is present in humid
rooms or while you are wearing humid clothing, on metal
structures such as floors, grates or scaffolds; when you are in
a tight position such as seated, kneeling, lying down or when
there is a high risk of having unavoidable or accidental contact
with the workpiece or ground.
• Disconnect power input or stop the motor before installing or
servicing this equipment.
• Install equipment and connect it to ground in accordance with
the operator's manual and national, state and local codes.
• Always check the supply to ground – check and make sure that
the power input to the ground wire is appropriately connected
to the grounding terminal at the disconnection box or that its
plug is appropriately connected to the output receptacle that is
connected to ground.
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