
Pilz GmbH & Co. KG, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany
3-1
3.1 Intended use
3 Safety
33000SafetySafety3-3.1Intended use3100Intended use3-Bestimmung/Gertebeschreibung_multi_Drehzahlwaechter
The expansion module monitors standstill, speed and direction of rota-
tion in accordance with EN ISO 13849-1 up to PL e and EN IEC 62061
up to SIL CL 3.
Bestimmung/Gertebeschreibung_multi_Zusatz_Modul
The expansion module may only be connected to a base unit from the
configurable control system PNOZmulti (please refer to the document
"PNOZmulti System Expansion" for details of the base units that can be
connected)
Bestimmung/Gertebeschreibung_multi_System
The configurable control system PNOZmulti is used for the safety-relat-
ed interruption of safety circuits and is designed for use in:
E-STOP equipment
Safety circuits in accordance with VDE 0113 Part 1 and EN 60204-1
Bestimmung/Gertebeschreibung_multi_Drehzahlwchter_Warnungen_ms3_4p_BA
WARNING!
Users must take appropriate measures to detect or exclude
errors (e.g. slippage or broken shearpin) which cause the fre-
quency of the encoder signal to no longer be proportional to the
monitored speed.
Appropriate measures are:
Using the monitored encoder to also control the drive
Mechanical solutions
WARNING!
Encoder errors are detected and signalled via a diagnostic bit.
This does does not bring the relevant axis to a safe condition.
To maintain safety (Category 3), the diagnostic bit (diagnostic bit
10) in the user program must be evaluated in such a way that a
shutdown occurs if the axis is in operation (see examples in
Chapter 9).
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