Ryobi PLASMA-40, Owner'S Operating Manual

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10
INSTALLATION
CONNECTION OF INPUT CABLE
In order to ensure personal safety and avoid
electric shock, please ground the machine reliably
by connecting the ground wire of the machine to
the grounding device in the switching box.
A primary power supply cable is available for this
cutting machine. Connect the power supply cable
to the rated input power. The primary cable should
be tightly connected to the correct socket to avoid
oxidization. Check whether the voltage value varies
in acceptable range with a multi-meter.
The cross section of the leads used in the
switching box should meet the requirements of the
maximum input capacity of the machine.The
leakage protection switch should choose current
rating not less than 35A.
The Mains supply voltage should be within ± 5% of
the rated Mains supply voltage. Too low a
voltage may cause poor welding performance. Too
high a supply voltage will cause components to
overheat and possibly fail.
The Welding Power Source must be:
•
Correctly installed, if necessary, by a qualified
electrician.
• Correctly earthed (electrically) in accordance
with local regulations.
DUTY CYCLE
The rated duty cycle of a Welding Power Source, is
a statement of the time it may be operated at its
rated welding current output without exceeding the
temperature limits of the insulation of the
component parts.
This product has a rated duty cycle of 80%. The
percentage represents the welding time in a 10
minute period for example 80% means that the
welding time is 8 minutes with a rest time of 2
minutes in a ten minute period although the actual
duty cycle will depend on the amperage used. If the
Welding Power Supply is used for longer than the
duty cycle or if you are welding using large welding
rods you may experience a temporary current shut
off. This is to protect the transformer inside the
Welding Power Supply from overheating.
Welding longer than rated duty cycle can
damage gun and void the warranty.
ELECTROMAGNETIC COMPATIBILITY
WARNING. Extra precautions for
Electromagnetic Compatibility may be
required when this Welding Power
Source is used in a domestic situation.
A. Installation and Use - Users Responsibility
The user is responsible for installing and using the
welding equipment according to the manufacturer’s
instructions. If electromagnetic disturbances are
detected then it shall be the responsibility of the
user of the welding equipment to resolve the
situation with the technical assistance of the
manufacturer. In some cases this remedial action
may be as simple as earthing the welding circuit,
see Note below. In other cases it could involve
constructing an electromagnetic screen enclosing
the Welding Power Source and the work, complete
with associated input filters. In all cases,
electromagnetic disturbances shall be reduced to
the point where they are no longer troublesome.
Note: The welding circuit may or may nor be
earthed for safety reasons. Changing the earthing
arrangements should only be authorised by a
person who is competent to assess whether the
changes will increase the risk of injury, e.g. by
allowing parallel welding current return paths which
may damage the earth circuits of other equipment.
Further guidance is given in IEC 974-13 Arc
Welding Equipment - Installation and use (under
preparation).
B. Assessment of Area
Before installing welding equipment, the user shall
make an assessment of potential electromagnetic
problems in the surrounding area. The following
shall be taken into account:
1. Other supply cables, control cables, signalling
and telephone cables; above, below and
adjacent to the welding equipment.