Pilz PMCprimo DriveP.01/AA0/4/0/0/208-480VAC - Manual (Page 40)

Function description
Operating Manual PMCprotego S1­2(­C)
1002528­EN­02 40
Timing diagram:
v
t
SS1 SIL3/Reset
1
0
1
0
1
0
1
0
1
0
SS1 Activate
Ready
STO Acknowledge
SDI
1
0
SDA Safe Direction
Acknowledge
SDI Neg Activate
1
0
SDI Pos Activate
t1 t2
Tolerance window
SDI
SDI delay time
Fig.: Changing the direction of rotation with SDI delay time.
} t
1
: Activation of safety function SDI in negative direction of rotation
} t
2
: Once the SDI delay time has elapsed, the negative direction of rotation is monitored
} SS1 Activate: Input for safety function SS1
} SS1 SIL3/Reset: Input for SIL 3 and reset
} SDI Neg Activate: Input for safety function SDI, negative direction is monitored (new dir­
ection of rotation)
} SDI Pos Activate: Input for safety function SDI, positive direction is monitored (old dir­
ection of rotation)
} 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