Pilz PMCprimo DriveP.01/AA0/4/0/0/208-480VAC - Manual (Page 36)

Function description
Operating Manual PMCprotego S1­2(­C)
1002528­EN­02 36
Timing diagram with tolerance range activated
v
t
SS1 SIL3/Reset
1
0
1
0
Limit value
Maximum speed
1
0
1
0
1
0
SS1 Activate
Ready
STO Acknowledge
1
0
SSR Activate
SSR delay time
ta te
SSR
t1 t1
t2
Limit value
Minimum speed
Tolerance amount
Tolerance amount
ts
SSR
SRA Safe Range
Acknowledge
Fig.: Safety function SSR with tolerance range activated
} Tolerance amount as % of the two limit values, maximum and minimum speed
} t
a
: Activation of safety function SSR
} t
e
: Once the SSR delay time has elapsed, the speed is monitored
} t
s
: Speed v exceeds the limit value and activates the tolerance range (tolerance
amount, tolerance time, tolerance period)
} t
1
: Tolerance time
} t
2
: Tolerance period
} SS1 Activate: Input for safety function SS1
} SS1 SIL3/Reset: Input for SIL 3 and reset
} SSR Activate: Input for safety function SSR
} 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
} SRA Safe Range Acknowledge: Output for monitoring the limit value on the motor