Tripped Power Supply - YASKAWA YWE-EH500-6N0 Instruction Manual

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6.2
Tripped Power Supply Switch
If the power supply switch is tripped, do not turn it ON again. Contact your Yaskawa
representative. If the power is turned ON again with the power supply switch tripped, the
problem may be compounded and may affect the welding.
6.3
Precautions on Welding Operation
Check the following precautions before starting welding.
1. The welding wire is electrically charged during welding. Be careful that the welding
voltage still remains for two seconds after the welding ends due to the two-second
delay set for the welding source. Also, do not touch the welding wire during the starting
point detection (optional function) since the voltage of approx. 300 V is applied to the
wire.
2. If a conduit cable is extremely bent, the welding wire cannot be smoothly fed, and thus
the set welding conditions may be altered. To prevent this, place conduit as straight as
possible.
3. If welding is performed at a current exceeding the rated output current, internal parts of
the welding source may be burnt. Allowable operational ratio for a current under the
rated value is calculated as follows:
Allowable operational ratio = Rated operational ratio
Table. 6 Allowable Operational Ratio of the Welding Source of 500 Ampere
Welding
Current Operational Ratio
(A)
500
(with Rated Operational Ratio of 100%)
Allowable
Allowable Continuous
Welding Time
(%)
100 Continuous welding possible
6-4
6.2 Tripped Power Supply Switch
Rated current
× [
Operating current
Welding Pause Time
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] %
63/129