Lincoln Electric POWER FEED 10M SINGLE/DUAL SVM172-A User Manual
Page 34
POWER FEED 10M SINGLE/DUAL
NOTES
B-12
B-12
P.8
TIG Gas Control (Two Settings)
1. "Valve (manual)", the internal solenoid will not
actuate while TIG welding, gas flow is manually
controlled by an external valve.
2. "Solenoid (auto)", the internal gas solenoid will
turn on and off automatically while TIG welding
as follows:
• Preflow time will not be accessible from the MSP4.
• Postflow time will be available in the MSP4 "End
Options" and have a range of OFF to 10.0 sec-
onds.
• The postflow time value is maintained when
switching between MIG and TIG modes.
• When machine output on/off is controlled via the
right encoder, gas flow will not start until the tung-
sten touches, the work piece, gas flow will stop
after the postflow time when the arc is broken.
• When machine output on/off is controlled via an
arc start switch or foot Amptrol, gas will begin flow-
ing when the output is turned on and stop flowing
after the postflow period after the output is turned
off.
P.9
Crater Delay
This parameter enables a timer delay for each feed
head to bypass the Crater option when short tack
welds are desired. If the trigger is released before
the timer expires, Crater will be bypassed and the
weld will end. If the trigger is released after the timer
expires, Crater will function as normal (if Crater
function is turned on).
P.11
Set Timers
This menu is used to adjust timer values for
Upslope, Downslope and Restrike. Press the right
button to enter the Set Timer menu. Rotate the
knob to select the timer to adjust and then press the
right button. Adjust the value of the timer by rotating
the knob. Press the left MSP4 button to set the
value and exit. Continue to adjust other timers as
necessary, and then press the left button to exit the
Set Timer menu.
P.12
Travel Options
This menu is used to change the travel options for a
travel carriage, including starting and ending func-
tions. The right MSP4 button to enter the Travel
Options menu and rotate the encoder to select
either starting or ending options. Press the right
MSP4 button to select the option. Press the left
MSP4 button to set the value and exit. Rotate the
encoder to select other options, or press the left
MSP4 button to exit the menu.
P.13
Adjust Arc Force
Use this menu to adjust Arc Force values for Start,
Weld and Crater. Press the right MSP4 button to
enter the menu and rotate the knob to choose either
Start, Weld or Crater. Press the right MSP4 button
and then rotate the knob to the desired value.
Press the left MSP4 button to set the value and exit.
Continue to adjust Arc Force for other states, and
then press the left MSP4 button to exit the menu.
P.80
Sense From Studs (two settings)
1. "False", the voltage sense lead is automatically
selected based on the DIP switch configuration
and the selected weld mode. This is the default
value that is used every time the machine is pow-
ered up. Note that setting P.80 to "False" does
not preclude voltage sensing from the studs if
studs sensing is specified by the selected weld
mode (for example stick and TIG weld modes will
still sense voltage at the studs).
2. "True", voltage sensing is forced to "studs"
regardless of the DIP switch configuration and
selected weld mode. Setting P.80 to "True"
should only be done for troubleshooting purpos-
es. P.80 will automatically be set back to "False"
the next time the equipment is powered up or can
be manually changed back to "False" via the
setup menu.
In order to control the welding arc, the power source
continually monitors arc current and arc voltage.
Arc current is measured internal to the power
source. Arc voltage can be measured as follows:
• Voltage internal to the power source ("studs")
• Voltage at the wire feeder ("67" lead)
• Voltage at a user-wired sense lead ("21" lead)
Remote voltage sensing (anything other than
"studs") is used to obtain a more accurate voltage
measurement since the sense lead is closer to the
arc. Remote voltage sensing can involve external
wiring and DIP switch configuration, there is a
potential for incorrect voltage measurement which
can lead to poor arc control or wire burn back.
P.99
Show Test Modes
Many weld tables include special modes for testing
and servicing the welding system. Set this parame-
ter to YES to show all test modes.
When the power source is turned off, the Show Test
Modes parameter automatically reverts back to
"NO".