Pilz PNOZ ms3p HTL User Manual download pdf (Page 11)

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]

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.

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 notbring 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).

CAUTION!

If there are frequency differences between tracks A and B of the

incremental encoder, the track with the higher frequency will be

evaluated. Different directions of rotation will no longer be

detected. The outputs

Clockwise

and

Anti-clockwise

switch

to a safe condition. The safe condition is cleared again as soon

as the error is remedied. Hazards that can arise through an auto-

matic restart must be excluded within the user program.

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