Pilz PMCprimo DriveP.01/AA0/4/0/0/208-480VAC - Manual (Page 30)

Function description
Operating Manual PMCprotego S1­2(­C)
1002528­EN­02 30
Timing diagram
s, v
t t1
SS1 SIL3/Reset
1
0
1
0
SOS delay time
Limit value
Standstill detection
v (t)
s (t)
Tolerance window
Standstill position
1
0
1
0
1
0
SS1 Activate
Ready
STO Acknowledge
SOS
1
0
SOS Activate
t2
SSA Safe Standstill
Acknowledge
Fig.: Safety function SOS
} t
1
: Activation of safety function SOS
} t
2
: Once the SOS delay time has elapsed, standstill position is monitored
} SS1 Activate: Input for safety function SS1
} SS1 SIL3/Reset: Input for SIL 3 and reset
} SOS Activate: Input for safety function SOS
} 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
} SSA Safe Standstill Acknowledge: Output for feedback from limit value monitoring
4.3.5 Safely Limited Speed ­ SLS
The safety function "safely limited speed" (SLS) monitors the drive to check that it stays
within a defined speed limit.
Input and output assignment in the Configurator:
} Inputs I0 ... I6
– SLS Activate