Pilz PMCprotego S1, Operating Manual

Page: 36 / 99

4.3 Safety functions
4 Function Description
4-18
Features฀of฀the฀safety฀function:

The฀drive's฀control฀functions฀are฀maintained฀in฀the฀standstill฀position.

Power฀to฀the฀motor฀is฀not฀shut฀down.
Sicherheitsfunktion_Sxx_Ueberwach
The฀safety฀card฀monitors฀the฀following฀functions:฀
Sicherheitsfunktion_SS2_SOS_Ueberwach_Stillstand_Pos

Standstill฀position
– The฀safety฀function฀monitors฀whether฀the฀standstill฀position฀re-
mains฀within฀a฀configured฀tolerance฀window.
– Safety฀function฀SS1฀(E-STOP฀braking฀ramp)฀is฀activated฀if฀the฀
standstill฀position฀leaves฀the฀tolerance฀window.
Sicherheitsfunktion_SOS_Ueberwach_Stillstand_Auto

Automatic฀SOS฀at฀standstill
A฀standstill฀threshold฀for฀activating฀the฀safety฀function฀SOS฀can฀be฀
specified฀in฀the฀Configurator.฀฀
Safety฀function฀SOS฀is฀activated฀when฀
– standstill฀is฀achieved฀while฀the฀SOS฀delay฀time฀is฀running.
– the฀SOS฀delay฀time฀has฀elapsed.
Sicherheitsfunktion_Sxx_Voraussetzung_S1
Prerequisites฀for฀normal฀operation:฀

Input฀"SS1฀Activate"฀and฀"SS1฀SIL3/Reset":฀"1"฀Signal฀(+24฀VDC)

"Ready"฀output:฀"1"฀Signal฀(+24฀VDC).฀The฀safety฀card฀is฀ready฀for฀op-
eration.

"STO฀Acknowledge"฀output:฀“0”฀Signal
Sicherheitsfunktion_SOS_Voraussetzung

Input฀"SOS฀Activate":฀"1"฀Signal฀(+24฀VDC)
Sicherheitsfunktion_Sxx_Voraussetzung_SIL3

To฀achieve฀SIL3฀or฀Ple:฀Connect฀the฀output฀"STO฀SIL3"฀to฀servo฀am-
plifier฀terminal฀X4A/฀3.
Sicherheitsfunktion_SOS_Ausloesung
Safety฀function฀is฀activated฀

By฀a฀1/0฀pulse฀edge฀at฀the฀input฀"SOS Activate".
Sicherheitsfunktion_SOS_Reaktion
Reaction:

SOS฀delay฀time฀starts

Once฀the฀SOS฀delay฀time฀has฀elapsed,฀safe฀standstill฀is฀monitored.฀
The฀drive฀remains฀in฀a฀controlled฀standstill.

Output฀"SOS฀Acknowledge":฀“1”฀Signal

Safety฀function฀SS1฀(E-STOP฀braking฀ramp)฀shuts฀the฀drive฀down฀
safely฀if฀the฀limit฀value฀for฀the฀standstill฀position฀is฀exceeded.฀An฀error฀
is฀registered.
Sicherheitsfunktion_SOS_S1_Diagramm