Important Safety Items - Panasonic YD-630AT Operating Instructions Manual

1、Important Safety Items
The following instructions must be followed carefully in case of working near the robot performing arc welding operation.
WARNINGS
Welding power source
Observe the following instructions to
prevent the hazard.
This welding power source is designed and manufactured giving due consideration to safety of the product, however, it is very
important to comply with all instructions, safety warnings, cautions and notes mentioned in this operating instruction. Failure to
do so can result in serious injury or even death.
Work of driving source at the input side, selecting work site, handling, storage and piping of high pressure gas, storage of welded
products and also disposal of waste should be performed according to the operating instruction and national, state and local
codes and regulations.
Prevent any unauthorized personnel to enter in and around the welding work area.
Pacemaker wearers should consult their doctor before going near arc welding. Magnetic fields can affect pacemakers.
Only educated and/or skilled persons who well understand this welding power source should install, operate, maintain and repair
the unit.
Never use filtering devices to cover vents of power source. Filters will restrict airflow and can cause unit to overheat. Use of
filter voids warranty.
Never use the welding power source for other than welding purpose. (e.g. Never attempt to use the welding power
source for pipe thawing.)
Against electric shock
Touching any live electrical parts can
cause fatal electric shocks or severe
burns.
Never touch live electrical parts.
Grounding of the case of the welding power and base metal or a jig electrically connected to the base metal must be performed
by educated and/or skilled persons.
Before installation or maintenance work, turn off power at the power box, wait it for at least five minutes to discharge capacitors.
Significant voltage may exist on capacitors after turning off power at the power box so it is imperative to check to make sure that
no charged voltage present at capacitors before touching any parts.
Do not use undersized, worn, damaged or bare wired cables.
Connect cables completely and insulate connection parts.
Keep all cases, panels and covers securely in place.
Do not handle the welding power source with torn or wet gloves.
Wear safety harness in case of working above floor level.
Perform periodic checks without fail and repair or replace any damaged parts before using the power source.
Turn off all equipment when not in use.
In case of AC arc welding in a confined area or above floor level, check related national, state and local codes and
regulations for any special treatment and comply with it if any.
Ventilation and protective equipment
Oxygen deficit, fume and gas
generated during welding can be
hazardous.
To prevent gas poisoning and suffocation by the gas generated during welding, use a local exhauster specified by the applicable
law, or wear protective breathing gear.
To prevent dust injury or poisoning by the fume generated during welding, use a local exhauster specified by the applicable law,
or wear protective breathing gear.
When conducting welding in the bottom of the tank, boiler or hold, make sure to provide sufficient ventilation or wear protective
breathing gear. Gas heavier than air generated during welding, such as carbon dioxide gas or argon gas settles in the bottom if
conducted in such area.
When conducting welding in a confined area, make sure to provide sufficient ventilation or wear protective breathing gear and
have a trained supervisor observe the workers.
Do not conduct welding at a site where degreasing, cleaning or spraying is performed. Conducting welding near the area where
any of these types of work is performed can generate toxic gases.
When welding a coated steel plate, provide sufficient ventilation or wear protective breathing gear. (Welding of coated steel
plates generates toxic fume and gas.)
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