Pilz PMCprotego S1 Operating Manual page 39

4 Function Description
4.3 Safety functions
Sicherheitsfunktion_SLS_S1_oT_Diagramm
Sicherheitsfunktion_Legende_SLS
Sicherheitsfunktion_Legende_SLS_S1
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
Speed
limit value +
Speed
limit value -
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. 4-6: Safety function SLS without tolerance range activated
t : Activation of safety function SLS

a
t : Once the SLS delay time has elapsed, the speed is monitored

e
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

STO Acknowledge: Output for feedback from safety function STO

SRA Acknowledge: Output for monitoring the limit value on the motor

SLS
t a t e
SLS delay time
t
4-21