Pilz PMCprotego S1 Operating Manual page 42

4 Function Description
4.3 Safety functions
Sicherheitsfunktion_SSR_S1_oT_Diagramm
Sicherheitsfunktion_Legende_SSR
Sicherheitsfunktion_Legende_SSR_S1
4-24
Activate the tolerance range:
The tolerance range becomes active the first time the speed limit val-

ue is exceeded (see flowchart).
Reaction:
If the tolerance range is exceeded, the safety function SS1 (E-STOP

braking ramp) is activated.
The following diagrams illustrate the sequences, with and without the
tolerance range activated.
Timing diagram without tolerance range activated
v
Limit value
for maximum speed
Limit value
for minimum speed
1
SS1 Activate
0
1
SS1 SIL3/Reset
0
1
SSR Activate
0
1
Ready
0
1
STO Acknowledge
0
1
SRA Acknowledge
0
Fig. 4-8: Safety function SSR without tolerance range activated
t : Activation of safety function SSR

a
t : Once the SSR delay time has elapsed, the speed is monitored

e
SS1 Activate: Input for safety function SS1

SS1 SIL3/Reset: Input for SIL3 and reset

SSR
t a t e
SSR
SSR delay time
t