Safety Precautions - Lincoln Electric POWER WAVE STT Operator's Manual

POWER WAVE ® STT ® MODULE
SAFETY PRECAUTIONS Read
installation section before you start installation.
WARNING
ELECTRIC SHOCK can kill.
• Turn off the power source at the discon-
nect switch before connecting or working
inside of the equipment.
• Only a qualified electrician should install
and connect the STT
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This equipment is for industrial use only and it is not intended for
use in residential locations where the electrical power is provided
by the public low-voltage supply system. There can be potential
difficulties in residential locations due to conducted as well as
radiated radio-frequency disturbances. The EMC or RF classification
of this equipment is Class A.
LOCATION AND MOUNTING
(See Figure A.1)
Mount the STT Module directly to the bottom of a compatible
®
Power Wave "S" series power source utilizing the quick lock
mechanism as shown. The STT
environments and can be used outdoors. Even so, it is important
that simple preventative measures are followed in order to
assure long life and reliable operation.
• The machine must be located where there is free circulation
of clean air such that movement into and out of the louvers
will not be restricted.
• Dirt and dust that can be drawn into the machine should be
kept to a minimum. The use of air filters on the air intake is
not recommended because normal air flow may be restrict-
ed. Failure to observe these precautions can result in exces-
sive operating temperatures and nuisance shutdown.
• Keep the machine dry. Shelter from rain and snow. Do not
place on wet ground or in puddles.
• Do not mount the Power Wave "S" series power source and
STT Module combination over combustible surfaces. Where
®
there is a combustible surface directly under stationary or
fixed electrical equipment, that surface shall be covered with
a steel plate at least .060" (1.6mm) thick, which shall extend
not less than 5.90" (150mm) beyond the equipment on all
sides.
TILTING
The machine must be placed on a stable, level surface so it will
not topple over.
this entire
® Module.
Module will operate in harsh
®
CONTROL CABLE CONNECTIONS
General Guidelines
Genuine Lincoln control cables should be used at all times
(except where noted otherwise). Lincoln cables are specifically
designed for the communication and power needs of the Power
Wave systems. Most are designed to be connected end to end
for ease of extension. Generally, it is recommended that the
total length not exceed 100 feet (30.5 m). The use of non-stan-
dard cables, especially in lengths greater than 25 feet, can lead
to communication problems (system shutdowns), poor motor
acceleration (poor arc starting), and low wire driving force (wire
feeding problems). Always use the shortest length of control
cable possible, and DO NOT coil excess cable.
A-2
INSTALLATION
FIGURE A.1