Table of Contents
Advertisement
B-8
CONTROL
Control Select key - enables operator to
choose Run-In procedure as indicated by the
light turning on. When light is on, the settings
of Run-In Wire Feed Speed and Voltage are
displayed. After Weld procedure is set, Run-in procedure should
be set to optimize arc starting.
Speed encoder knob can adjust run-in
RUN-IN
speed between min. rated speed and up to
VOLTS / WFS
the procedure Weld speed setting. Run-in
speed setting can not exceed Weld speed
setting. Run-in speed setting of 100 IPM or less is recommend-
ed for optimum starting. Factory setting is near min. rated
speed.
If set below minimum rated speed "---" will show on the WFS
display, indicating Run-in speed is set to match weld speed set-
ting.
The Run-in (strike) voltage can be set above or below the Weld
voltage setting up to a max of 60 V. If set below a min of 10 V,
the Run-In (strike) voltage display shows "---", indicating the
Run-In Voltage is set to match the weld voltage setting. Also,
the difference between Run-in voltage and Weld voltage set-
tings is maintained automatically if the Weld voltage setting is
changed, so the run-in voltage encoder knob does not need to
be changed to follow the Weld voltage setting.
When trigger is closed (and preflow time is over) the wire feeds
at Run-In speed and volts until the welding arc strikes, which
causes the feed speed and volts to change to Weld settings.
If the arc does not strike within about 2 seconds, the Run-In
speed automatically changes to Weld speed to permit "Hot"
feeding at higher speed setting for loading wire.
Pressing control key again, or closing the gun trigger, shuts off
light indicating knob settings and displays are returned to Weld
Voltage and Wire Feed Speed.
Digital "Memory" Voltmeter
When the welding gun trigger is activated, the top LN-10 display
reads actual welding voltage from 0.0 to 60.0 VDC with auto-
matic polarity indication for positive (+) or negative (-) electrode.
If actual voltage drops below 8.0 volts for over 0.8 sec when the
trigger is closed, Loss of Voltage Sense Shutdown will occur.
See "Loss of Voltage Sense Shutdown" in this section.
The last welding voltage monitored at the end of the weld is dis-
played for 5 seconds after the weld has stopped, as indicated
by a 5 second "blinking" display. This allows checking actual
weld voltage after weld has stopped.
Any keypad or trigger operation will interrupt the 5 second
memory display.
OPERATION
GAS PURGE
CONTROL
To change acceleration hold the Gas Purge Key closed, then
press the Control key. The top (Voltage) display shows "Acc"
indicating acceleration setting, 1 thru 5, is displayed on the bot-
tom (Speed) display. Use the speed encoder knob to change
setting from 1 thru 5.
To exit this function, and enter the acceleration setting into the
procedure memory, press both keys again or close the trigger.
Security Mode
Security mode is used to capture timer, acceleration, and control
selections and settings, then to disable these selections until
security mode is deactivated. Encoder knob setting changes of
cold feed, weld speed and weld voltage are not disabled.
Security mode is activated, or deactivated, by shutting off the
input power to the LN-10 with all Timer and Control settings as
desired for both procedures for both Feeders. Then setting S2
DIP switch 3 inside the LN-10 Control Box ON or OFF and restor-
ing input power (See "Setting DIP Switches" in this section).
When activated, the Timer and Control selections no longer light,
but function with the captured settings. All other keys and
encoder knob controls function normally.
LN-10
Acceleration Selection
To provide optimum starting of various
processes and procedures, the wire feed
acceleration of the LN-10 can be set to five
levels; 1 thru 5, for each feeder and procedure.
1 is the slowest acceleration and 5 is the
fastest. (Factory set to 4.)
B-8
Advertisement
Chapters
Table of Contents
Troubleshooting
