Pilz PMCprimo DriveP.01/AA0/4/0/0/208-480VAC - Manual (Page 37)

Function description
Operating Manual PMCprotego S1­2(­C)
1002528­EN­02 37
4.3.7 Safe Direction ­ SDI
The safety function "safe direction" (SDI) monitors the defined direction of rotation of the
drive axis (clockwise or anti­clockwise).
Input and output assignment in the Configurator:
} Inputs I0 ... I6
– SDI Neg. Activate
– SDI Pos. Activate
} Outputs O0 … O3
– SDA Safe Direction Acknowledge
Prerequisites for normal operation:
} Input "SS1 Activate" and "SS1 SIL3/Reset": "1" Signal (+24 VDC)
} "Ready" output: "1" Signal (+24 VDC). The safety card is ready for operation.
} "STO Acknowledge" output: “0” Signal
} Input "SDI Pos Activate": "1" Signal (+24 VDC)
} Input "SDI Neg Activate": "1" Signal (+24 VDC)
} To achieve SIL3 or PL e: Connect the output "STO SIL3" to servo amplifier terminal
X4A/ 3.
The safety function is activated via
} 1/0 pulse edge at the input "SDI Pos Activate"
or
} 1/0 pulse edge at the input "SDI Neg Activate"
Reaction:
} SDI delay time starts
} Once the SDI delay time has elapsed, the direction of rotation is monitored
} Output "SDA Safe Direction Acknowledge": "1" signal
} If the direction of rotation is violated, safety function SS1 (E­STOP braking ramp) is ac­
tivated.