Lincoln Electric IM10057 POWER WAVE STT MODULE (CE) - Manual (Page 17)

B-1 OPERATION
POWER WAVE ® STT ® MODULE (CE)
B-1
SAFETY PRECAUTIONS
Read this entire section of operating instructions
before operating the machine.
ELECTRIC SHOCK can kill.
• Disconnect input power before
servicing.
• Do not operate with covers removed.
• Do not touch electrically live parts.
• Only qualified persons should install, use or
service this equipment.
------------------------------------------------------------------------
GENERAL DESCRIPTION
General Physical Description
The POWER WAVE
® STT ® MODULE (CE) is an acces-
sory enabling compatible power sources to perform the
STT
® function without limiting the normal multi-process
rating of the host machine. It is intended for use with
medium range “S”– series Power Wave
® power sources
such as the S350. The module itself is a low profile
pedestal, designed to seamlessly integrate with compati-
ble power sources and water coolers.
General Functional Description
The POWER WAVE
® STT ® MODULE (CE) is essentially
a high speed, high capacity output switch, connected in
series with the positive output of the power source. It
communicates module status and identification informa-
tion to the power source via the ArcLink
® protocol, and
receives a high speed synchronized switching command
via a dedicated digital link.
POWER-UP SEQUENCE
The POWER WAVE ® STT ® MODULE (CE) will be pow-
ered up at the same time as the power source. The sta-
tus light will blink green for about a minute while the sys-
tem is configuring. After this time, the status lights will
turn a steady green indicating the machine is ready.
The fan in the POWER WAVE ® STT ® MODULE (CE) will
run only when the power source fan is activated.
DUTY CYCLE
The POWER WAVE ® STT ® MODULE (CE) is rated at
450 amps at a 100% duty cycle. It is further rated to sup-
port 500 amps at a 60% duty cycle and 550 amps at a
40% duty cycle. The duty cycle is based on a ten-minute
period. A 60% duty cycle represents 6 minutes of weld-
ing and 4 minutes of idling in a ten-minute period.
Note:
The POWER WAVE ® STT ® MODULE (CE) is capable
of withstanding a peak output current of 750 amps. The
allowable maximum average output current is time
dependant, and ultimately limited by the host power
source.
COMMON WELDING PROCEDURES
MAKING A WELD
Choose the electrode material, electrode size, shielding
gas, and process (GMAW, GMAW-P, GMAW STT
® etc.)
appropriate for the material to be welded.
Select the weld mode that best matches the desired
welding process. The standard weld set shipped with the
host power source encompasses a wide range of com-
mon processes that will meet most needs. If the STT
®
modes are not available, or if a special weld mode is
desired, visit www.powerwavesoftware.com or contact
the local Lincoln Electric sales representative.
To make a weld, the power source needs to know the
desired welding parameters. Set the parameters on the
user interface typically located on the wire feeder. The
user interface sends the parameters (arc voltage, wire
feed speed, UltimArc
TM value, etc.), to the power source
via the ArcLink ® communication protocol through the con-
trol cables. The power source controls the POWER
WAVE
® STT ® MODULE (CE) based on the selected weld
mode.
For a more detailed description, and specific operating
instructions, consult the power source Instruction
Manual.
RECOMMENDED PROCESSES AND
EQUIPMENT
RECOMMENDED PROCESSES
The POWER WAVE ® STT ® MODULE (CE) is recom-
mended for all process supported by the host power
source including, but not limited to SMAW, GMAW,
GMAW-P, GMAW-STT
® .
PROCESS LIMITATIONS
The POWER WAVE ® STT ® MODULE (CE) is unaffected
by the voltage at the load, and therefore processes are
only limited by the current and duty cycle ratings listed in
the specifications for the product. The POWER WAVE
®
STT ® MODULE (CE) is designed to protect itself from the
excessive transient voltages associated with highly
inductive weld circuits. These high inductance circuits
may result in unsatisfactory performance, but will not
damage the module.
WARNING