Pilz PMCprotego S1 Operating Manual page 40

4 Function Description
4.3 Safety functions
Sicherheitsfunktion_SLS_S1_mT_Diagramm
Sicherheitsfunktion_Legende_SLS_TolBerecih
Sicherheitsfunktion_Legende_SLS
Sicherheitsfunktion_Legende_ts_t1_t2
Sicherheitsfunktion_Legende_SLS_S1
4-22
Timing diagram with tolerance range activated
v
Tolerance amount
Speed
limit value +
Speed
limit value -
Tolerance amount
1
SS1 Activate
0
1
SS1 SIL3/Reset
0
1
SLS Activate
0
1
Ready
0
1
STO Acknowledge
0
1
SRA Acknowledge
0
Fig. 4-7: Safety function SLS with tolerance range activated
Tolerance amount as % of the speed limit value

t : Activation of safety function SLS

a
t : Once the SLS delay time has elapsed, the speed is monitored

e
t : Speed v exceeds the limit value and activates the tolerance range

s
(tolerance amount, tolerance time, tolerance period)
t : Tolerance time

1
t : Tolerance period

2
SS1 Activate: Input for safety function SS1

SS1 SIL3/Reset: Input for SIL3 and reset

SLS Activate: Input for safety function SLS

Ready: Output for operating status of the safety card

SLS
t a t e t s
SLS delay time
t 1
t 2
t
t 1