Omron NX-SID800 User Manual

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3 Part Names and Functions
NX-series Safety Control Unit User’s Manual (Z930)
3-3 Safety I/O Functions
3
3-3-2 Safety Output Functions
The types of safety output functions that are performed by the Safety Output Unit is shown below. The
safety output functions diagnose the outputs to the safety output terminals and the external device wir-
ing based on the safety output data from the safety program. The execution results of the safety pro-
gram are evaluated by the safety output functions and the evaluation results are output from the safety
output terminals.
Types of Safety Output Functions
Safety Input Unit
Safety input terminals
Safety CPU Unit
Safety Output Unit
Safety input
function
Safety program
execution
Safety output
function
Safety input data
Safety output data
Safety process
data
communications
Safety output terminals
Self-diagnosis
Test pulse evaluation
A pulse is output at a specific
interval to detect wiring errors
in the externally connected
device.
Without test pulse
Single channel
Dual channel evaluation
There is no redundancy.
Dual-channel equivalent outputs
Two outputs are checked to make sure they have the same value.
Other Functions
Safety process
data
communications
With test pulse
When safety output terminals
are used as dual channels,
the two outputs are checked
for consistency.
I/O power supply monitoring
This function monitors the voltage range of the I/O power supply to ensure
the operation of the internal circuits.
I/O power supply OFF circuit test
This function shuts OFF the I/O power supply and diagnoses the function
that shuts OFF the I/O power supply to see if it is operating correctly.

Omron NX-SID800 Specifications

General

Brand	Omron
Model	NX-SID800
Category	Controller
Language	English