W
IRING
OF
V
OLTAGE
D
ETECTION
C
ABLE
AT
B
ASE
M
ETAL
S
IDE
C
ONNECTION
C
HAPTER
4
45
Chapter 4
Connection
1.
Check that input power is turned off with the disconnect switch connected to the welding power source.
2.
Remove the attaching screws and open the cover for external connection.
3.
Remove the blind bush and pass the cable through.
●
Process any given blind bush among the several available types.
●
Among the multiple blind bushes, remove the bushes for the holes through which the cables are passed, then
attach grommets with membrane (
4.
Connect the cable to the terminal for external connection.
●
Strip the cable cover by 10 to 11 mm from the end while pressing the button on the terminal block and insert the
cable.
5.
Check the wiring and fix the cable with cable ties so that no gap may be created between the cable and the
blind bush.
6.
Place the cover for external connection back to the welding power source.
4.6 Wiring of Voltage Detection Cable at Base Metal Side
When the extension cable is 30 m or more in length in total, use of the voltage detection cable at the base metal side is
recommended.
The voltage detection cable needs to be wired so that the correct feedback of the arc voltage can be obtained. Connect the
voltage detection cable as near as possible to the base metal to avoid detection of voltage decrease.
Use the voltage detection cable at base metal (optionally available: K5416N00 or K5416G00) by connecting with the wire
feeder or to the voltage direct detection terminal at the base metal side on the front of welding power source.
When using the voltage detection cable, set the internal function F38 to "1". (
-
Details on the internal function F38 (
-
F38: Arc voltage detection switching)
CAUTION
•
The control cable drawn out from the terminal for external connection should be kept away
from the welding power cable or the torch cable as much as possible.
Otherwise, failure may occur due to noise during use.
•
Do not pull out the cables other than the cable that is connected with the terminal block on
the printed circuit board.
Malfunction or error may occur.
•
Ensure to start the operation only after shutting off the input power by the contactor of
the power distribution box connecting the welding power source. Otherwise, electric
shock may occur.
Strip the cable cover
by 10 to 11 mm
Terminal
block
Button
Cable
(vinyl)
Blind bush
Attaching screw
Cover for external
connections