Daihen OTC Welbee Inverter W400, Owner'S Manual

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4-19
Chapter 4 Connection
W
IRING OF
V
OLTAGE
D
ETECTION
C
ABLE AT
B
ASE
M
ETAL
S
IDE
C
ONNECTION
C
HAPTER
4
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 "ON". (
6.7.1
-
Setting
procedure)
Details on the internal function F38 (
6.7.2.24
-
F38: Arc voltage direct detection switching)
4.6.1 Wiring to wire feeder
This section explains how to connect the voltage detection cable at the base metal side to the wire feeder.
1.
Check that input power is turned off with the disconnect switch connected to the welding power
source.
2.
Connect the voltage detection cable at the base metal side to the terminal board in the front of wire
feeder.
●
If you use wire feeder "CM-7403", you need a voltage detection adapter "K5952E00". If you use wire
feeder "CMV-7403", you don’t need a voltage detection adapter. Please refer to the owner's manual of
wire feeder for the details.
• 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.
Voltage detection adapter (K5952E00
Wire feeder