5 SAFETY APPLICATION CONFIGURATION EXAMPLES
5.1 System Configured by a Safety CPU
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For safety switch and electromagnetic contactors, set the parameters as follows.
*1 Adjust the values of input response time, input dark test pulse off time, and output dark test pulse off time according to the installation
environment and wiring length.
*2 Set double input discrepancy detection time to 100ms for mechanical switches and 20ms for sensor inputs as standard.
*3 For details on each setting range, refer the following manual.
CC-Link IE Field Network Remote I/O Module (With Safety Functions) User's Manual
*4 Always set the parameters like this for this case example.
■Safety devices and safety labels to be used
To create a safety program, use the safety devices and standard/safety shared labels listed in the table below.
Item Setting details
*3
Transmission interval monitoring time 24ms
Wiring selection of input X0 and X1 Double wiring (NC/NC)
*4
Wiring selection of input X2 and X3 Double wiring (NC/NC)
*4
Input response time X0 and X1
*1
1ms
Input response time X2 and X3
*1
1ms
Double input discrepancy detection setting X0 and X1 Detect
*4
Double input discrepancy detection setting X2 and X3 Detect
*4
Double input discrepancy detection type X0 and X1 Discrepancy detection time specified
*4
Double input discrepancy detection type X2 and X3 Discrepancy detection time specified
*4
Double input discrepancy detection time X0 and X1
*2
100ms
Double input discrepancy detection time X2 and X3
*2
100ms
Input dark test execution setting X0 and X1 Perform
*4
Input dark test execution setting X2 and X3 Perform
*4
Input dark test pulse OFF time
*1
400s
Number of pulse output for input dark test 1 time
Ext. module 1_Wiring selection of output Y2 Double wiring (Source/Source)
*4
Ext. module 1_Output dark test execution setting Y2 Perform
*4
Ext. module 1_Output dark test pulse OFF time Y2
*1
1ms
Ext. module 1_Number of pulse output for output dark test 1 time
Module External device Safety device/safety label
SR_IO1 Safety switch SA\X0 or SA\X1
Contactor SA\Y0
Contactor (check for welding) SA\X2 or SA\X3
R_IO2 Reset switch reset_in
Start switch start_in
Stop switch stop_in