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B-5
Control Select key -
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
speed between min. rated speed and up
to 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
recommended 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 DH-10 dis-
play reads actual welding voltage from 0.0 to 60.0 VDC with
automatic polarity indication for positive (+) or negative (-) elec-
trode.
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
enables operator to
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 of 1 thru 5.
To exit this function, and enter the acceleration setting into the
procedure memory, press both keys again or close the trigger.
"OTHER: POWER SOURCE INDEPENDENT"
POWER SOURCE SELECTION DIP SWITCH SET-
TING
The DH-10 is designed to work with the following
Lincoln Electric power sources: CV250, CV300I,
CV300, CV400-I, CV400, CV500-I, CV655, DC250,
DC400, DC600, DC650 PRO, DC655, DC1000, Pulse
Power 500 (non-pulse CV models only), V300 PRO,
and the V350 PRO. To use the DH-10 with other
power sources, the "Other: Power Source
Independent" power source selection dip switch set-
ting (S1 switches 1-4 in the OFF position) may be
used. All DC-10 features operate as described else-
where in this manual except for the following differ-
ences:
1. Instead of displaying a preset value in volts, the top
2. If a loss of arc voltage occurs, wire will NOT stop
DH-10
Acceleration Selection
To provide optimum starting of various
processes and procedures, the wire feed
acceleration of the DH-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.
display will show a number from "0.00" to "10.00" in
increments of 0.02. The number can be used for
setting run-in "voltage" as well as "weld preset volt-
age". When the trigger is closed or while welding,
the top display will display actual arc voltage. The
voltage displayed while welding can be used to
determine the arc voltage to be expected for a
given number setting. Actual arc voltage display
will still flash for 5 seconds after a weld has been
completed.
feeding. The Loss of Voltage Sense Shutdown
feature is disabled to permit the use of the DC-10
with power source connections that do not connect
the work voltage back to the DH-10 through the
input power cable. The actual weld voltage while
welding will NOT be shown on the top display if the
work voltage is not available to the DH-10 through
the input power cable.
B-5
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