6. Connection
WMD078TE0PAA07
41
6.2.3 Connecting base metal voltage
detection wire
If arc becomes unstable or spatter increases dras-
tically despite correct use of connection cables
(see section”
4.2 Peripheral and optional equip-
” on page
17), connect the
base metal voltage detection wire (sold sepa-
rately) between the base metal and the base
metal voltage detection terminal of the welding
power source.
Note
•
Base metal voltage detection wire:
Model: DWU35317 (3 m)
•
Once the base metal (-) voltage detection
wire is connected, set the “
VOLT. DETECT
”
set-
tings (Detail mode: Group 3: Submenu 20) to
“1” (See page
105.)
6.2.4 Connecting grounding wire and
input cable
Attention
=============================
Only trained and/or qualified personnel who
understand electrical knowledge should
perform grounding work.
お願い
========================================
====
Note
The following cable and wire are customer sup-
ply items. Please prepare them accordingly.
•
Grounding wire:
Wire cross section is 5.5 mm
2
or more
•
Input cable:
Wire cross section is 5.5 mm
2
or more
•
Recommended crimp terminal
* To avoid electric shock and short circuit of
input cable, make sure to insulate the crimping
part and bare conductor parts of the crimp
terminal with protective cap or insulating tape.
Base metal (-) voltage detection terminal
WARNING
Observe the following instructions to
prevent electric shock.
Turn off all power including power at
the power distribution box and con-
firm safety before conducting connec-
tion work.
Firmly connect cables.
Do not connect the grounding wire to
water pipe, steel-flame and so on for
grounding as they are insufficient for
grounding.
Never connect the grounding wire to
the gas pipe.
5.3 mm to 6.4 mm (dia.)
Less than 13.0 mm