Pilz PMCprotego S2-2 Operating Manual page 28

Function description
The safety card monitors the following functions:
} Standstill position
–
–
}
Automatic SOS at standstill
A standstill threshold for activating the safety function SOS can be specified in the Con-
figurator.
Safety function SOS is activated when
–
–
Input and output assignment in the Configurator:
}
Inputs I0 ... I6
–
}
Outputs O0 ... O3
–
Prerequisites for normal operation:
}
Input "SS1 Activate" and "Reset": "1" Signal (+24 VDC)
}
"Ready" output: "1" Signal (+24 VDC). The safety card is ready for operation.
} "STO Acknowledge" output: "0" Signal
}
Input "SOS Activate": "1" Signal (+24 VDC)
Safety function is activated
}
By a 1/0 pulse edge at the input "SOS Activate".
Reaction:
}
SOS delay time starts
}
Once the SOS delay time has elapsed, safe standstill is monitored. The drive remains
in a controlled standstill.
}
Output "SSA Safe Standstill Acknowledge": "1" signal
} Safety function SS1 (E-STOP braking ramp) shuts the drive down safely if the limit
value for the standstill position is exceeded. An error is registered.
Operating Manual PMCprotego S2-2(-C)
1002529-EN-04
The safety function monitors whether the standstill position remains within a con-
figured tolerance window.
Safety function SS1 (E-STOP braking ramp) is activated if the standstill position
leaves the tolerance window.
standstill is achieved while the SOS delay time is running.
the SOS delay time has elapsed.
SOS Activate
SSA Safe Standstill Acknowledge
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