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B-1
OPERATION
B-1
SYNERGIC 7 & 7H
OPERATING INSTRUCTIONS
Safety Precautions
Duty Cycle
The Synergic 7 models are rated at 60% duty cycle *
for
a maximum current of 600 amps.
* Based on a 10 minute time period (6 minutes on, and 4 minutes off).
KEYPAD SETUP AND OPERATION
Power-Down Save
Power to the Synergic 7 is supplied and controlled
from the power source. The Synergic 7 automatically
senses the loss of power when the power source is
turned off.
Procedure settings, including mode, crater speed,
cold feed speed , run-in speed, weld speed, timers
and acceleration are automatically saved when power
is removed. Arc Voltage setting is retained by the
synergic power source. This feature does not require
batteries and when power is restored it will automati-
cally return all settings to the state they were in when
power was removed. The power source may auto-
matically overwrite any or all of these settings follow-
ing power-up recall.
Mode Selection
Mode Select
key ( behind “drop-
door” cover) enables operator to
choose mode of operation shown
by the indicator lights. Pressing key
causes mode lights to sequence
(top to bottom) starting from the
current indicated position.
Top Light
- Indicates 2-Step
(Standard) Trigger Mode.
1. Trigger closure energizes the
solenoid valve, then the wire feeder
and the power source after Preflow
time (See Timer/ Crater Section).
2. Releasing the trigger turns off the
wire feeder and power source and
then the solenoid valve after
Postflow time.
Middle Light - Indicates 4-Step (Lock)
Trigger Mode. These models have selectable
4-step with crater fill or, as shipped, 4-step
with current interlock. (See 4-step trigger
mode selection for method of switching).
The 4-step modes function as follows:
1. Trigger closure energizes the power
source and wire feeder after the pre-
flow time.
2. Trigger release enables 4-step lock,
leaving the feeder and power source
as in step 1.
a) 4-step with current interlock will only
lock if weld current is flowing.
Breaking weld arc stops wire feed
and power source output.
b) 4-step with crater fill will lock without
welding.
3. Closing the trigger a second time
continues welding.
a) 4-step with current interlock contin-
ues welding without changing the
settings from step 2.
b) 4-step with crater fill continues weld-
ing but changes to the crater set-
tings.
4. Releasing the trigger turns off wire
feeder and power source and then
gas solenoid after postflow time.
Bottom Light - Indicates Spot Weld
Mode. Trigger closure energizes the
solenoid valve, then wire feeder and
the power source. The spot on timer
starts when current flows. The wire
feeder and power source then sole-
noid valve are all turned off when the
spot on timer times out even through
the trigger is still closed.
COLD FEED
GAS PURGE
Operation Keys
Cold Feed key energizes the wire
feeder but not the power source or
solenoid valve. This cold feed
speed is digitally displayed and is
adjustable (with “Arrow keys”) only
while pressing the Cold Feed Key.
The last setting is held in memory
for next Cold feeding.
Gas Purge
key energizes the sole-
noid valve but not the wire feeder or
power source.
STD
LOCK
SPOT
2-STEP
4-STEP
ELECTRIC SHOCK can kill.
• Do not touch electrically live parts such
as output terminals or internal wiring.
•
When inching with gun trigger, electrode and
drive mechanism are “hot” to work and
ground and could remain energized several
seconds after the gun trigger is released.
• Turn OFF input power at welding power
source before installation or changing
drive roll and/or guide tubes.
• Welding power source must be connected
to system ground per the National
Electrical Code or any applicable local
codes.
• Only qualified personnel should
perform this installation.
WARNING
Observe all additional Safety Guidelines detailed
throughout this manual.