Pilz PMCprimo DriveP.01/AA0/4/0/0/208-480VAC - Manual (Page 53)

Pilz GmbH & Co. KG, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany
Telephone: +49 711 3409-0, Telefax: +49 711 3409-133, E-Mail: [email protected]
4-21
4.3 Control element
4 Function Description
` Shorts across contacts are detected.
` The safety relay is wired for an automatic reset.
` The safety function STO complies with PL d (Cat. 2) of EN ISO 13849-
1 and SIL CL 2 of EN/IEC 62061.
The relays' wiring must comply with the category or performance level
required for the application. Further information on the safety relays is
available from Pilz.
Fig. 4-7: STO, single-channel with safety relay PNOZ S3
4.3.3.7 Connection example for STO, dual-channel
Connection example for STO, dual-channel 4- ][Funktion_STO_Beispiel_zweikanalig
The following circuit example illustrates dual-channel activation of the
safety function STO.
` Activation of the inputs STO1-ENABLE and STO2-ENABLE is dual-
channel, via the semiconductor outputs from a safety control system
PNOZ mm0p.
` During the periodic test, the state of the pulse disabler is evaluated
with the feedback signal DIGITAL-INOUT1.
` The safety function STO complies with PL e (Cat. 4) of EN ISO 13849-
1 and SIL CL 3 of EN/IEC 62061.
The relays' wiring must comply with the category or performance level
required for the application. Further information on the safety control
system PNOZmulti is available from Pilz.
PNOZ s3
A1 S11
STO1-ENABLE
STO2-ENABLE
S12 S21 S22 23
24 S12 S34 A2
X4A
X4B
24V
0V
24 V
0 V
S1
S2
6
3
4
5
PMCprotego D