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
3-3-1 Safety Input Functions
• Operation for Dual-channel Equivalent Inputs: Discrepancy Error
*1. This is the time that the error status (control data, status data, and indicator status) is held (1 s min.).
The errors that can be detected for safety input terminals are determined by the parameter settings.
The following table gives the errors that are detected for each parameter setting.
 Devices with Mechanical Contacts and Devices with Semiconductor Outputs
Errors Detected during Self-diagnosis
Setting Error detection
Single/Dual Test pulse
Contact with pos-
itive side of
power line
Ground fault
*1
Disconnection
Short circuits in
input wiring
Single Channel Without Test Pulse Not detectable. Not detectable. Not detectable. ---
With Test Pulse Detectable. Detectable when
input turns ON.
Not detectable. ---
Dual Channel
Equivalent
Without Test Pulse
Not detectable.
*2
Not detectable. Detectable when
input turns ON.
Not detectable.
*2
Same test source
for pair of safety
input terminals
Detectable. Detectable when
input turns ON.
Detectable when
input turns ON.
Not detectable.
Different test
sources for pair of
safety input termi-
nals
Detectable. Detectable when
input turns ON.
Detectable when
input turns ON.
Detectable.
Safety input terminal 0
Safety input terminal 1
Safety input data 0 before
dual evaluation
Safety input data 0
Safety input data 1 before
dual evaluation
I/O indicator (yellow) 0
I/O indicator (yellow) 1
I/O indicator (red) 0
I/O indicator (red) 1
OFF ON OFF
OFF ON OFF
*1
Discrepancy
time

Omron NX-SID800 Specifications

General

Brand	Omron
Model	NX-SID800
Category	Controller
Language	English