Welding; Crater - Panasonic YD-400VP1YHD Operating Instructions Manual

7.2 Welding

Here are some points of welding operation.
• There are three control processes to weld.
Use CONTROL process select button to set.
• With CRATER and INI.&CRATER settings, it is
possible to apply repetitive crater welding
motion (crater repeat).
• The arc start error (Err6) occurs if voltage
detection is not executed after turning on the
torch switch. At that time, output is automat-
ically turned off.
• In case of no arc (arc outage) state due to
separating the torch from the base metal
while welding, gas flow and wire feed stop,
resulting in welding termination without error
indication.
7.2.1 NO CRATER
• Apply only main welding. (Initial welding and
crater welding are not applicable.)
• Suitable for tack welding, repetitive welding
of short weld section and thin plate welding.
• Operation: Turn on/off the torch switch to
start/stop welding arc respectively.
Arc: ON
Torch: ON
ON
Torch switch
Tpf
ON
Gas supply
☆
Wire
run-in speed
Wire feed
Weld voltage
Weld current
Weld conditions
Tpf: Gas pre-flow time
Taf: Gas post-flow time
☆ : Arc start
★ : Arc end
WMD078TE0PAA07
Arc: OFF
Torch: OFF
OFF
Taf
OFF
★
Burnback
time
Main welding

7.2.2 CRATER

• Apply main welding followed by crater weld-
ing. (With crater welding, it is possible to fill
the pit at the weld stop)
• Suitable for middle thick plate welding.
• Operation: Turn on/off the torch switch
twice.
Arc: ON
Torch: ON
(Change arc type)
Arc for Crater
Torch: ON
Self-hold: It retains the torch switch state until the next
time the switch is triggered. The self-hold is cancelled if
no-arc state lasts 0.5 second or longer while welding.
ON
Torch switch
Tpf
ON
Gas supply
☆
Wire
run-in speed
Wire feed
Weld voltage
Weld current
Main welding
Weld conditions
Tpf: Gas pre-flow time
Taf: Gas post-flow time
☆ : Arc start
★ : Arc end
7. Welding operation
Arc: Continue
(Self-hold)
Torch: OFF
Arc: OFF
Torch: OFF
Self-hold
Start End
OFF ON OFF
Taf
OFF
★
Burnback
time
Crater
69