I/O indicator (yellow)
I/O indicator (red)
Safety output data
Safety output command value
Safety output terminals
OFF
OFF
Error
detected
Cause
removed.
OFF
ON OFF
OFF
OFF
*1
*1. This is the time that the error status (control data, status data, and indicator status) is held (1 s min.).
• Operation for Dual-channel Equivalent Outputs: Normal Operation
I/O indicator (red) 0
I/O indicator (red) 1
I/O indicator (yellow) 0
I/O indicator (yellow) 1
Safety output data 0
Safety output command value
Safety output terminal 0
Safety output terminal 1
OFF
ON OFF
• Operation for Dual-channel Equivalent Outputs: Test Pulse Evaluation Error
4 Safety Control Unit Operation
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NX-series Safety Control Unit User's Manual (Z930)