Pilz PMCprotego S1, Руководство по эксплуатации

Страница: 45 / 99

4-27
4.3 Safety functions
4 Function Description
Timing฀diagram
Fig.฀4-10: Safety฀function฀SDI

t
1
:฀Activation฀of฀safety฀function฀SDI

t
2
:฀Once฀the฀SDI฀delay฀time฀has฀elapsed,฀the฀direction฀of฀rotation฀is฀
monitored฀

SS1฀Activate:฀Input฀for฀safety฀function฀SS1

SS1฀SIL3/Reset:฀Input฀for฀SIL3฀and฀reset

SDI฀Pos฀Activate:฀Input฀for฀safety฀function฀SDI,฀clockwise฀rotation฀is฀
monitored฀

SDI฀Neg฀Activate:฀Input฀for฀safety฀function฀SDI,฀anti-clockwise฀rota-
tion฀is฀monitored฀

Ready:฀Output฀for฀operating฀status฀of฀the฀safety฀card฀฀

STO฀Acknowledge:฀Output฀for฀feedback฀from฀safety฀function฀STO฀

SDI฀Acknowledge:฀Output฀for฀feedback฀from฀safety฀function฀SDI
Sicherheitsfunktion_SDI_Umsch
Switching฀the฀direction฀of฀rotation฀while฀safety฀function฀SDI฀is฀active

When฀changing฀the฀direction฀of฀the฀motor,฀please฀note:฀Monitoring฀of฀
the฀old฀direction฀must฀be฀deactivated฀first,฀before฀monitoring฀of฀the฀
new฀direction฀of฀rotation฀is฀activated!฀(See฀Case฀A฀in฀the฀illustration).฀
v
t
SS1 SIL3/Reset
1
0
1
0
s (t)
1
0
1
0
1
0
SS1 Activate
Ready
STO Acknowledge
SDI
1
0
SDI Acknowledge
SDi Neg Activate
SDI delay time
1
0
SDi Pos Activate
t1 t2
Tolerance window