YASKAWA YWE-EH500-6N0 Instruction Manual page 21

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nal (+).
2) Exclusive-use base metal cable
The exclusive-use base metal cable connects between the base metal and
power output terminal (-).
3) Welding Voltage Detecting Line
The welding voltage detecting line connects between the base metal and con-
nector "CON 7" at rear face of the welding source.
• Be sure to connect the welding voltage detecting line.
If the welding voltage detecting line is not connected, the error "Err702: Voltage Detection
Wire Error" may occur, and welding cannot be performed.
• Only if the length of the welding cable and exclusive-use base metal
cable is 5 m or less respectively, the welding source can be used with
connecting a short-circuiting cap for detecting voltage of output termi-
nal (-) to the connector "CON 7" at rear face of the welding source. For
improving the welding performance, connect the base metal and con-
nector "CON 7" with the welding voltage detecting line whenever possi-
ble.
3. Connection of Control Cable
Connect cables of every kind to connectors at rear face of the welding source. When
connecting the cables, securely tighten the plug until it stops rotating.
1) Connect the control cable of the robot controller to the connector "CON 3".
2) Connect the motor cable of the wire feeder to the connector "CON 4".
3) Connect the encoder cable of the wire feeder to the connector "CON 5".
2.5 Connection of Electrical System
CAUTION
2-4
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