Pilz PMCprimo DriveP.06/AA0/4/0/0/208-480VAC - Manual (Page 28)

Function description
Operating Manual PMCprotego S2­2(­C)
1002529­EN­02 28
The safety card monitors the following functions:
} Standstill position
– The safety function monitors whether the standstill position remains within a con­
figured tolerance window.
– Safety function SS1 (E­STOP braking ramp) is activated if the standstill position
leaves the tolerance window.
} 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
– standstill is achieved while the SOS delay time is running.
– the SOS delay time has elapsed.
Input and output assignment in the Configurator:
} Inputs I0 ... I6
– SOS Activate
} Outputs O0 … O3
– SSA Safe Standstill Acknowledge
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 (E­STOP braking ramp) shuts the drive down safely if the limit
value for the standstill position is exceeded. An error is registered.