Omron NX-SID Series User Manual page 125

• Operation for Dual-channel Equivalent Outputs: Test Pulse Evaluation Error
Safety output data
Safety output command value
Safety output terminal 0
Safety output terminal 1
I/O indicator (yellow) 0
I/O indicator (yellow) 1
I/O indicator (red) 0
I/O indicator (red) 1
*1. This is the time that the error status (control data, status data, and indicator status) is held (1 s min.).
Errors Detected during Self-diagnosis
The errors that can be detected for safety output terminals are determined by the parameter settings.
The following table gives the errors that are detected for each parameter setting.
Descrip-
Test pulse
tion of
diagnosis
operation
Without Test pulses
Test Pulse are not out-
put when
the output
is ON.
With Test Test pulses
Pulse are output
when the
output is
ON.
*1. To detect ground faults, the 0-V line of the external power supply must be grounded.
NX-series Safety Control Unit User's Manual (Z930)
OFF
Contact with positive
side of power line
Output
Output ON Output ON
OFF
Not Detectable. Detectable.
detectable.
Detectable. Detectable. Detectable.
3 Part Names and Functions
ON OFF
OFF
Error Cause of error
detected. removed.
*1
OFF ON OFF
Flashing
OFF ON OFF
Error detection
*1
Ground fault
Short cir-
cuit when
Output
both out-
OFF
puts are
Not Not
detectable. detectable.
Not Detectable.
detectable.
Short circuits in output wiring
Short cir-
Short cir- cuit when
cuit when one out-
both out- put is ON
puts are and the
ON OFF other is
OFF
Not Detectable.
detectable.
Not Detectable.
detectable.
3
3 - 47