Omron NX-SID800 User Manual

3 Part Names and Functions
3 - 28
NX-series Safety Control Unit User’s Manual (Z930)
Safety input terminals can be used as dual channels (one pair). The dual channel evaluation evaluates
the data for two inputs to check for discrepancy.
• Single Channel
• Dual Channels
The following parameters are also used.
• Single/Dual
• Discrepancy Time
 Single/Dual
Set the evaluation method to use with the safety input terminals.
 Discrepancy Time
For two inputs set in a Dual Channel Mode, the time is monitored from a change in the value of one
input to a change in the value of the other input. An error occurs if the value of the other input does
not change within the set discrepancy time. The discrepancy time can be set to any of the following
eight values between 500 ms and 64,000 ms.
1: 500 [ms], 2: 1,000 [ms], 3: 2,000 [ms], 4: 4,000 [ms], 5: 8,000 [ms], 6: 16,000 [ms],
7: 32,000 [ms], 8: 64,000 [ms]
The discrepancy time cannot be set in Single Channel Mode.
 Relationship between the Single/Dual Setting and Safety Input Data
The signals that are input to safety input terminals are evaluated as shown in the following table.
This safety input data can be used in the safety program in the Safety CPU Unit.
• Relationship between Input Signals to Safety Input Terminals and Safety Input Data for Sin-
gle-channel Inputs
Dual Channel Evaluation
Setting Description
Single Channel The safety input terminals are used as independent safety input terminals.
Dual Channel Equivalent The safety input terminals are used as dual-channel equivalent inputs.
Dual Channel Complementary The safety input terminals are used as dual-channel complementary
inputs.
Safety Mat/Safety Edge The safety input terminals are used as safety mat/safety edge inputs.
Safety Input Unit
Safety input terminal
Test pulse evaluation
Safety input data
Safety process data
communications
Safety CPU Unit
I/O port
Device variable
Safety program
execution
Safety Input Unit
Safety CPU Unit
Safety input terminal
Test pulse evaluation
Safety input data
Safety process data
communications
I/O port
Device variable
Safety program
execution
Test pulse evaluation
Dual channel
evaluation

Omron NX-SID800 Specifications

General

Brand	Omron
Model	NX-SID800
Category	Controller
Language	English