Safety input terminals
Test Pulse Evaluation
Test Pulse Evaluation
Device Variable
Safety program
execution
Safety input data
Safety process data
communications
Safety Input Unit
Safety CPU Unit
Dual channel
evaluation
I/O port
The following parameters are also used.
• Single/Dual
• Discrepancy Time
l
Single/Dual
Set the evaluation method to use with the safety input terminals.
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.
l
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: 1000 [ms], 3: 2000 [ms], 4: 4000 [ms], 5: 8000 [ms], 6: 16000 [ms], 7: 32000
[ms], 8: 64000 [ms]
The discrepancy time cannot be set in Single Channel Mode.
l
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 Single-
channel Inputs
Single/Dual
Input signals on the safe-
ty input terminals
Safety input data
Meaning of status
Si (x)
Si (x)
Single Channel
0
0
Inactive (OFF)
1
1
Active (ON)
• Relationship between Input Signals to Safety Input Terminals and Safety Input Data for Dual-
channel Inputs
n = Even number
4 Safety Control Unit Operation
4 - 25
NX-series Safety Control Unit User's Manual (Z930)
4-3
Safety I/O Function
4
4-3-1
Safety Input Function
Содержание NX-SIH400
Страница 4: ...Introduction 2 NX series Safety Control Unit User s Manual Z930 ...
Страница 46: ...Revision History 44 NX series Safety Control Unit User s Manual Z930 ...
Страница 108: ...2 Specifications 2 42 NX series Safety Control Unit User s Manual Z930 ...
Страница 132: ...3 Installation and Wiring 3 24 NX series Safety Control Unit User s Manual Z930 ...
Страница 148: ...4 Safety Control Unit Operation 4 16 NX series Safety Control Unit User s Manual Z930 ...
Страница 216: ...5 System Configuration and Setup 5 44 NX series Safety Control Unit User s Manual Z930 ...
Страница 306: ...6 Programming 6 90 NX series Safety Control Unit User s Manual Z930 ...
Страница 378: ...7 Checking Operation and Actual Operation 7 72 NX series Safety Control Unit User s Manual Z930 ...
Страница 390: ...8 Calculating Safety Reaction Times 8 12 NX series Safety Control Unit User s Manual Z930 ...
Страница 412: ...11 Safety Data Logging 11 10 NX series Safety Control Unit User s Manual Z930 ...
Страница 504: ...12 Troubleshooting 12 92 NX series Safety Control Unit User s Manual Z930 ...
Страница 550: ...l Safety I O Terminal Settings l I O Map Settings Appendices A 38 NX series Safety Control Unit User s Manual Z930 ...
Страница 554: ...l I O Map Settings Appendices A 42 NX series Safety Control Unit User s Manual Z930 ...
Страница 558: ...l Safety I O Terminal Settings l I O Map Settings Appendices A 46 NX series Safety Control Unit User s Manual Z930 ...
Страница 564: ...l Safety I O Terminal Settings l I O Map Settings Appendices A 52 NX series Safety Control Unit User s Manual Z930 ...
Страница 623: ...I Index I 1 NX series Safety Control Unit User s Manual Z930 I ...
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