Output Connections - F.F. Group DWM 200PRO Notice Originale

12 | English
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 welding
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
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 pro-
duced when covered welding electrodes
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 con-
fined spaces and unreachable areas. Fu-
thermore 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 dy-
namics. 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.
CONNECTION TO POWER SUPPLY
Before plugging the unit in, check the
power supply voltage, phase and frequen-
cy. 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 pow-
er grid socket.
Make sure that the power supply is suffi-
cient to operate the welder.
The power cable supplied with the weld-
er 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).

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.
OPERATING CONTROLS AND OPTIONS
DESCRIPTION
Do not modify the DWM 200PRO in any
way. Unauthorized modification may impair
the function and/or safety and could affect
the life of the equipment. There are specific
applications for which the DWM 200PRO
was designed.
Always check of damaged or worn out
ƒ
parts before using the DWM 200PRO.
Broken parts will affect the DWM 200PRO
operation. Replace or repair damaged or
worn parts immediately.
Store idle DWM 200PRO . When DWM
ƒ
200PRO is not in use, store it in a secure
place out of the reach of children. Inspect
it for good working condition prior to stor-
age and before re-use.
TECHNICAL DATA
Article number
Model
Rated voltage
Max rated input current
Rated input capacitance
No-load voltage
Rated working voltage
MMA welding current
Rated duty cycle
Welding current (10min)
10min/100%
Efficiency
Power factor
Insulation class
Enclosure protection
Cooling type
Weight
DWM 200 PRO
45 486
DWM
200PRO
V 230
Hz 50/60
A 33-29
kvA 3.6-6.9
V 78
V 28
A 25~200
% 20
A 150
A 110
η 88%
Cosφ 0.99
F
IP 21S
Gas cooling
kg 6.7