Fronius VST 247, Руководство по эксплуатации

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9
ENGLISH
WIRE-INCHING
In the wire-inching mode, the welding wire is fed into the torch hosepack at
the pre-set wirefeed speed, without any flow of shielding gas or current.
To stop the wire-inch:
- release the torch trigger or
- shift the mode selector switch into another position
SPOT WELDING
Spot welding is used for welding joints on overlapped sheets that are only
accessible from one side.
Fig.10 Functional sequence in spot-welding mode
t
I
Start of cycle
Gas pre-flow time
End of spot welding,
with burn-back time
Gas post-flow time
Arc ignition = beginning
of spot-welding
Spot-welding, with
time limitation
Press and release the torch trigger
STARTING TO USE THE WELDING
MACHINE
Warning! Before starting to use for the first time, read the section
headed “Safety rules”.
UTILISATION FOR INTENDED PURPOSE ONLY
The welding machine is intended to be used SOLELY for MIG/MAG welding.
Any other use, or any use going beyond the above, is deemed to be “not for
the intended purpose” and the manufacturer shall not be liable for any damage
resulting therefrom.
Utilisation for the intended purpose” shall also be deemed to encompass:
- the observance of all instructions in the operating manual
- the carrying out of all prescribed inspection and maintenance work
Warning! Never use the welding machine for thawing frozen pipes.
MACHINE SET-UP REGULATIONS
The welding machine is tested to “Degree of protection IP21”, meaning:
- Protection against penetration by solid foreign bodies with diameters larger
than 12 mm
- Protection against dripping water falling vertically
The welding machine can be set up and operated outdoors in accordance with
IP21. However, the built-in electrical components must be protected against
direct wetting.
Warning! Place the welding machine on an even, firm floor in such
a way that it stands firmly. A welding machine that topples over can
easily kill someone.
The venting duct is a very important safety feature. When choosing the
machine location, make sure that it is possible for the cooling air to enter and
exit unhindered through the louvers on the front and back of the machine. Any
electroconductive metallic dust from e.g. grinding-work must not be allowed
to get sucked into the machine.
MAINS CONNECTION
The welding machine is designed to run on the mains voltage given on the
rating plate. For details of fuse protection of the mains supply lead, please see
the Technical Data.
Depending on the version, the VarioStar 317/317-2 can be run on a mains
voltage of either 3x230/400V~ or 3x400/500V~. The VarioStar 247 can be
run as standard on a mains voltage of 3x400V~.
Fig.11 Tolerance ranges of the mains voltage
+10%
253 V~ 207 V~
-10%
230 V~
+10%
440 V~ 360 V~
-10%
400 V~