Pilz PMCprotego S1, Руководство по эксплуатации, Страница: 32 / 99

4.3 Safety functions
4 Function Description
4-14
Timing฀diagram:฀STO฀is฀started฀during฀the฀STO฀delay฀time
Fig.฀4-3: Safety฀function฀SS1

t
1
:฀Activation฀of฀safety฀function฀SS1

t
2
:฀Activation฀of฀safety฀function฀STO฀฀

SS1฀Activate:฀Input฀for฀safety฀function฀SS1

SS1฀SIL3/Reset:฀Input฀for฀SIL3฀and฀reset฀

Ready:฀Output฀for฀operating฀status฀of฀the฀safety฀card฀

STO฀Acknowledge:฀Output฀for฀feedback฀from฀safety฀function฀STO฀
4.3.3 Safe stop 2 - SS2
Safe฀stop฀2฀-฀SS2 4- Sicherheitsfunktion_SS2_Ueber
The฀safety฀function฀"Safe฀Stop฀2"฀(SS2)฀brakes฀the฀drive฀in฀a฀controlled฀
manner฀and฀monitors฀it฀for฀standstill.
Features฀of฀the฀safety฀function:

The฀drive's฀control฀functions฀are฀maintained.฀Power฀is฀applied฀to฀the฀
motor.

Power฀to฀the฀motor฀is฀not฀shut฀down.

The฀safety฀function฀"Safe฀Stop฀2"฀corresponds฀to฀controlled฀braking฀
in฀accordance฀with฀IEC฀60204-1,฀stop฀category฀2.
Sicherheitsfunktion_Sxx_Ueberwach
v
t
t1
1
0
1
0
1
0
STO
1
0
t2
Braking ramp
SS1 Activate
STO Acknowledge
STO delay time
Tolerance window
Braking ramp
Limit value
Standstill detection
Ready
SS1 SIL3/Reset