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ID : 2479
Safety Functions
Safety Motion specification provides the following safety functions in addition to that of RC8A Standard specification.
For the safety performance of the safety functions, refer to ”here”.
| Safety function name | ISO13849-1:2015 | IEC61508 | MTTFD |
DCavg (％) |
PFHd | PFH | PFDAV | RC8A |
|
|---|---|---|---|---|---|---|---|---|---|
Standard specification |
Safety motion specification |
||||||||
| Safe Torque Off (STO) | PLe / Cat.4 (PLd / Cat.3)* |
SIL3 (SIL2)* |
163.2 |
99.0 | 1.50E-08 | 5.31E-10 | 4.63E-05 | O | O |
| Safe Stop 1 (SS1) | PLe / Cat.4 (PLd / Cat.3)* |
SIL3 (SIL2)* |
176.6 | 99.0 |
1.50E-08 | 5.16E-10 | 4.53E-05 | O | O |
| Safe Stop 2 (SS2) | PLd / Cat.3 | SIL2 | 50.0 | 97.0 |
1.34E-07 | 7.96E-10 | 6.82E-05 | O | |
| Safe Operating Stop (SOS) | PLd / Cat.3 | SIL2 | 50.0 | 97.0 | 1.34E-07 | 7.96E-10 | 6.82E-05 | O | |
| Safely-Limited Position (SLP) | PLd / Cat.3 | SIL2 | 50.0 | 96.7 | 1.34E-07 | 7.77E-10 | 6.67E-05 | O | |
| Robot Speed Monitoring (RSM) | PLd / Cat.3 | SIL2 | 50.0 | 97.8 |
1.34E-07 | 9.08E-10 | 7.72E-05 | O | |
| Robot Position Monitoring (RPM) | PLd / Cat.3 | SIL2 | 50.0 | 95.9 | 1.34E-07 | 1.68E-09 | 1.37E-04 | O | |
| Safe Brake Control (SBC) | PLe / Cat.4 (PLd / Cat.3)* |
SIL3 (SIL2)* |
165.1 | 99.0 | 1.50E-08 | 5.30E-10 | 4.62E-05 | O | O |
O : Available safety function
* : When using the encoder data
If you use an encoder that has not been safety-validated, you need to confirm that the performance of the encoder deserves to pass the Fault Insertion Test, EMC test, Electrical safety test, environment test, product safety test as well as meets the requirements of PFH ≦ 35% * 10^-6 for SIL2.
ID : 2479