EWM inverter STICK 250 H-2, Руководство по эксплуатации

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5 Commissioning
5/1
5 Commissioning
5.1 Area of application
The machines are used exclusively for stick electrode direct current welding.
5.1.1 Proper usage
These welding machines are suitable only for MMA direct current welding for rutile, basic and
cellulose electrodes.
Any other use is regarded as "improper" and no liability is assumed for any damage arising
therefrom.
We can only guarantee smooth and trouble-free operation of the machines when used in
conjunction with the cooling units, welding torches and accessories from our range!
5.2 Setting up the welding machine
Follow the safety instructions on the opening pages entitled "For Your Safety".
•
Set up the machine so that there is sufficient space to adjust the operating elements.
•
Ensure that the machine is set up in a stable position and is appropriately secured.
5.3 Mains connection
The correct mains plug must be attached to the mains supply lead on the machine. The
connection must be made by an electrician in compliance with current VDE regulations.
Any phase sequence can be used!
The operating voltage shown on the rating plate must match the mains voltage! For mains
fuse protection, please refer to the “Technical data” chapter.
•
Insert mains plug into the appropriate socket when the machine is switched off.
5.4 Welding machine cooling system
Observe the following to attain the optimum duty cycle of the power units:
•
Ensure that the working area is adequately ventilated,
•
Do not obstruct the air inlets and outlets on the machine,
•
No metal parts, dust or other foreign bodies are permitted to enter the machine.
5.5 Workpiece lead
Remove paint, rust and dirt from clamping and welding areas with a wire brush. Attach the
workpiece collet or clamp directly next to the welding position. Structural parts, pipes, rails
etc. may not be used as return leads for the welding current unless these parts are the
actual workpieces.
A perfect current connection must be ensured for welding benches and appliances.
•
Insert cable plug on the workpiece lead into the welding current socket (chap. 2, E1 or I1
depending on the polarity of the electrode
)
and lock by turning to the right.
MMA welding:
The polarity depends on the instructions from the electrode manufacturer given on the
electrode packaging.
5.6 Electrode holder connection
•
Insert cable plug of the stick electrode holder into the “+” welding current socket (chap. 2, E1
and I1 depending on the polarity and electrode
)
and lock by turning to the right.
The polarity depends on the instructions from the electrode manufacturer given on the
electrode packaging.
(+ Positive polarity at pole changeover switch position , STICK 350 CEL PWS only)
(- Negative polarity at pole changeover switch position , STICK 350 CEL PWS only)