Internal timer
Safety input data
I/O indicator (yellow)
I/O indicator (red)
Counter cleared.
Counter cleared.
Safety input terminals
OFF
ON
OFF
OFF
ON
OFF
ON
OFF
ON
OFF
Error
ON
*1
OFF delay
*1. This is the time that the error status (control data, status data, and indicator status) is held (1 s min.).
l
Operation with Both an ON Delay and OFF Delay
You can filter out ON pulses for the width that is set with the ON delay time and filter out OFF puls-
es for the width that is set with the OFF delay time.
Internal timer (ON delay)
Safety input data
I/O indicator (yellow)
I/O indicator (red)
Counter cleared.
Counter cleared.
Internal timer (OFF delay)
Counter cleared.
Counter cleared.
Safety input terminals
ON
OFF
ON
OFF
ON
OFF
OFF delay
ON delay
Test Output Terminal Short Detection
The test output terminal short detection prevents the internal circuits of the test output terminals from
being destroyed if an overcurrent flows due to a ground fault or other cause.
If an overcurrent is detected, the safety input data for the safety input terminal that is being used as
the test source for the terminal is turned OFF.
At this time, an
Overload Detected at Test Output
event will occur. To troubleshoot errors, refer to
4 Safety Control Unit Operation
4 - 31
NX-series Safety Control Unit User's Manual (Z930)
4-3
Safety I/O Function
4
4-3-1
Safety Input Function
Summary of Contents for NX-SIH400
Page 4: ...Introduction 2 NX series Safety Control Unit User s Manual Z930 ...
Page 46: ...Revision History 44 NX series Safety Control Unit User s Manual Z930 ...
Page 108: ...2 Specifications 2 42 NX series Safety Control Unit User s Manual Z930 ...
Page 132: ...3 Installation and Wiring 3 24 NX series Safety Control Unit User s Manual Z930 ...
Page 148: ...4 Safety Control Unit Operation 4 16 NX series Safety Control Unit User s Manual Z930 ...
Page 216: ...5 System Configuration and Setup 5 44 NX series Safety Control Unit User s Manual Z930 ...
Page 306: ...6 Programming 6 90 NX series Safety Control Unit User s Manual Z930 ...
Page 390: ...8 Calculating Safety Reaction Times 8 12 NX series Safety Control Unit User s Manual Z930 ...
Page 412: ...11 Safety Data Logging 11 10 NX series Safety Control Unit User s Manual Z930 ...
Page 504: ...12 Troubleshooting 12 92 NX series Safety Control Unit User s Manual Z930 ...
Page 554: ...l I O Map Settings Appendices A 42 NX series Safety Control Unit User s Manual Z930 ...
Page 623: ...I Index I 1 NX series Safety Control Unit User s Manual Z930 I ...
Page 625: ......