Connection To Power Supply; Output Connections - Benman 160 GEN Notice Originale

This equipment is suitable for using in
industrial environment switch mains
power protected by residual current op-
erated circuit-breaker (time delay), Type
B and trip-ping current of >200 mA.
INVERTER ADVANTAGES
ƒ Inverter designed using the latest
i.g.b.t. (ultra fast) technology
ƒ 55 khz operating frequency
ƒ "Digit driver" control
ƒ 35%-100% operating range
ƒ Arc force automatic increase of weld-
ing current to stabilize welding on stick
out changing
ƒ Antisticking realize automatic shut-
down after about 3 seconds in case of
short circuit between electrode and
welding piece to avoid pasting
ƒ Hot start automatic increase of current
at the beginning of welding.
SELECTABLE WELDING METHODS
BENMAN 160GEN, BENMAN 180GEN,
BENMAN 200GEN welders are par-
ticularly suitable to use in conjunc-
tion with Gen-Set.
MMA WELDING
Electric MMA (Metal Manual Arc) and
SMAW (Shielded Metal Arc Welding) are
both manual procedures exploiting the
heat generated by an electric arc that is
produced when covered welding elec-
trodes make contact with the workpiece.
It is a very common procedure, mainly
due to its versatility. In fact, workpieces
can be welded together anywhere at
all: in a workshop, in the open, or even
in confined spaces and unreachable
areas. Futhermore a wide variety of
electrodes are available to satisfy all
needs.
MMA welding with AC or DC current
uses so called "drooping" generators. DC
current is usually preferred due to the
quality of the end result and the wide
range of electrodes that can be used.
The important parameters of MMA
welding are the weld current and the
dynamics. The weld current identifies
the diameter and the type of electrode
that can be used. The dynamics
demonstrate the response speed of the
welding unit in varying arc conditions.
TIG WELDING
This welder, despite being designed
for high quality MMA welding, also
provides excellent results in TIG mode.
Inert gas arc welding using infusible
tungsten electrodes (often shortened
to TIG welding, Tungsten Inert Gas
welding) is a procedures that takes ad-
vantage of the arc produced between
a non-consumable electrode and the
workpiece. The edges of the workpiec-
es are molted and if necessary, using
filler metals in rod form, are fused
together.

CONNECTION TO POWER SUPPLY

Before plugging the unit in, check
the power supply voltage, phase and
frequency. The permissible voltage is
shown on the unit nameplate.
Ensure the welder is earthed.
Also check that the plug provided with
the unit is compatible with the local
power grid socket.
Make sure that the power supply is
sufficient to operate the welder.
The power cable supplied with the
welder should not be extended but,
if that becomes necessary, either an
identical or greater cross-section cable
should be used according to the final
cable length.
All models require a three-wire cable
(positive, negative and earth) with a
minimum cross section area equal to
2,5 mm².

OUTPUT CONNECTIONS

The welding cables are connected using
fast connector plugs.
Consult the following chapters of this
manual for information regarding the
connections re-quired for MMA and TIG
welding.
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