9.1 Confirming Setting conditions
9-1
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Failure Analyses
Confirm that the junctions between the metal receptacle and the cable, and the connectors on
the printed boards are connected securely. Then, take corrective action by referring to "
Table. 11 Check Items ", " Table. 12 Failure Analyses for Welding Section ", and " Table. 13
Fault Analyses for Electrical Circuit Section ". If the equipment does not function properly
even after the corrective action, contact your Yaskawa representative to investigate the cause
and to repair as soon as possible.
9.1
Confirming Setting conditions
If any fault occurs, check the following items in " Table. 11 Check Items ". Afterwards, take
proper corrective actions in " Table. 12 Failure Analyses for Welding Section "."
• Before maintenance, inspection, or wiring, be sure to turn OFF the
switch in the primary side switch gear and put up a warning sign. (ex.
DO NOT TURN THE POWER ON.)
Failure to observe this warning may result in electric shock or injury.
• To connect a nylon connector, insert the connector after matching the
connector number and confirm that it is locked. Do not apply excessive
force to the printed board when inserting the connector. Never change
the positions of the internal wiring or modify the connections.
Failure to observe this caution may result in device problems.
Table. 11 Check Items
Item
Contents
Welding type
Check if the welding type suitable for material and the wire diameter or shielding
gas has been selected.
Parameter
Check that changing of parameters does not lead to the error in welding operation.
After recording the changed parameters, return the data to the initial values and
check how welding is performed.
WARNING
CAUTION
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