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                                  This is the web edition of the original ⮫ AC500-S safety user manual, version 1.3.2. This web edition is provided for quick reference only. The original safety user manual must be used to meet functional safety application requirements.  | 
                           
In this example, two contacts of the guard switch are connected to a safety input device, which realizes the error detection. The resulting BOOL signal is mapped to the two input channels of the SF_Guard_1.
The diagnostic information retrieval has not been covered in this example. For this, refer to⮫ “Additional notes”. The input parameter Activate for the dynamic FB activation has been set to TRUE. However, in an application, this can be replaced by a variable.
Information about the used function block parameters
| 
                                  Function block  | 
                              
                                  Input  | 
                              
                                  Constant value  | 
                              
                                  Description  | 
                           
|---|---|---|---|
| 
                                  SF_EmergencyStop_1  | 
                              
                                  S_StartReset  | 
                              
                                  TRUE  | 
                              
                                  Automatic reset allowed when PES is started  | 
                           
| 
                                  S_AutoReset  | 
                              
                                  FALSE  | 
                              
                                  No automatic reset, user reset/acknowledge necessary  | 
                           |
| 
                                  SF_Guard_1  | 
                              
                                  S_StartReset  | 
                              
                                  TRUE  | 
                              
                                  Automatic reset allowed when PES is started  | 
                           
| 
                                  S_AutoReset  | 
                              
                                  FALSE  | 
                              
                                  No automatic reset, user reset/acknowledge necessary  | 
                           |
| 
                                  DiscrepancyTime  | 
                              
                                  T#0ms  | 
                              
                                  The discrepancy time between both safety inputs S_GuardSwitchX is not monitored, because they are identical and since the input unit provides one signal of type BOOL from the contactors.  | 
                           |
| 
                                  SF_MutingSeq_1  | 
                              
                                  S_StartReset  | 
                              
                                  TRUE  | 
                              
                                  Automatic reset allowed when PES is started  | 
                           
| 
                                  MaxMutingTime  | 
                              
                                  T#30s  | 
                              
                                  The maximum muting time is monitored to be within 30 s  | 
                           |
| 
                                  SF_LightCurtain_1  | 
                              
                                  S_StartReset  | 
                              
                                  TRUE  | 
                              
                                  Automatic reset allowed when PES is started  | 
                           
| 
                                  S_AutoReset  | 
                              
                                  FALSE  | 
                              
                                  No automatic reset, user reset/acknowledge necessary  | 
                           |
| 
                                  TestTime  | 
                              
                                  T#100ms  | 
                              
                                  The maximum test time is monitored to be within 100 ms  | 
                           |
| 
                                  NoExternalTest  | 
                              
                                  TRUE  | 
                              
                                  The external manual sensor test is not supported.  | 
                           |
| 
                                  SF_OutControl_1  | 
                              
                                  S_StartReset  | 
                              
                                  FALSE  | 
                              
                                  No automatic reset allowed when PES is started  | 
                           
| 
                                  S_AutoReset  | 
                              
                                  FALSE  | 
                              
                                  No automatic reset, user reset/acknowledge necessary  | 
                           |
| 
                                  StaticControl  | 
                              
                                  FALSE  | 
                              
                                  A dynamic change of the signal ApplCtrl1 (rising edge) is required after block activation or a triggered safety function (S_SafeControl = FALSE).  | 
                           |
| 
                                  SF_EDM_1  | 
                              
                                  MonitoringTime  | 
                              
                                  T#30ms  | 
                              
                                  The maximum response time of both feedback signals EDM1 and EDM2 are monitored to be within 30 ms.  |