CHAPTER 3: USING PROGRAMMING FUNCTIONS
IS-300CA INVERTER POWER SUPPLY
990-418 3-27
f. WELD1 STOP / PARITY CHECK.
Set external input pin 13.
When WELD1 STOP is selected. Parity check will not be performed. The sequence will
proceed to COOL1 if external input pin 13 is closed during the WELD1 sequence operation.
(Refer to Note 2, “Current shutoff function.”)
When PARITY CHECK is selected. Parity check will be performed. This check allows for
detection of a failure resulting from a wire break in the schedule selection signal lines. Be
sure that the total number of closed schedule selection and parity signal lines is always odd.
(Refer to Note 1, “Schedule Numbers and Schedule Selection Pins.”)
NOTE: Schedule Numbers and Schedule Selection Pins
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