7
Contact I/O Circuit
7.1 Contact Output Circuit
7-2
167646-1CD
HW1481264
Interface Board for Welding
Power Supply
Fig. 7-1: Example connection
NOTE
The life of the arc-ON output relay (ARCON relay) is
20 million times (approx. 10 years).
Therefore, periodical replacement is necessary. When
replacing the ARCON relay, specialized tool is required.
Contact your Yaskawa representative.
Be sure that the output current does not exceed 0.5 A even
instantaneously. When there is a possibility of exceeding
0.5 A due to inrush current etc., current limit measures such
as installing the resistors in series are required.
YEW01 side
+24VU
MAX 0.5A
024VU
R
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