Pilz PMCprotego S2-2 Operating Manual page 37

Function description
Timing diagram:
Fig.: Safety function SDI
}
t : Activation of safety function SDI
1
}
t : Once the SDI delay time has elapsed, the direction of rotation is monitored
2
}
SS1 Activate: Input for safety function SS1
} Reset: Input for reset
}
SDI Pos Activate: Input for safety function SDI, clockwise rotation is monitored
}
SDI Neg Activate: Input for safety function SDI, anti-clockwise rotation is monitored
}
Ready: Output for operating status of safety card and second output for feedback from
safety function STO
}
STO Acknowledge: Output for feedback from safety function STO
}
SDA Safe Direction Acknowledge: Output for feedback from safety function SDI
Switching the direction of rotation while safety function SDI is active
} When changing the direction of the motor, please note: Monitoring of the old direction
must be deactivated first, before monitoring of the new direction of rotation is activated!
(See Case A in the illustration). If an SDI delay time t
when the new direction of rotation monitoring is activated. In A, the SDI delay time t
shown = 0.
Operating Manual PMCprotego S2-2(-C)
1002529-EN-04
v
Tolerance window
1
SS1 Activate
0
1
Reset
0
1
SDi Neg Activate
0
1
SDi Pos Activate
0
1
Ready
0
1
STO Acknowledge
0
1
SDA Safe Direction
Acknowledge
0
s (t)
t 1 t 2
SDI delay time
has been configured, it will start
m
SDI
t
is
m
37