Pilz PZE X4 User Manual

PZE X4

Safety relays

Operating Manual­1003199­EN­08

This document is a translation of the original document.

All rights to this documentation are reserved by Pilz GmbH & Co. KG. Copies may be made for internal purposes. Suggestions and comments for improving this documentation will be gratefully received.

Pilz®, PIT®, PMI®, PNOZ®, Primo®, PSEN®, PSS®, PVIS®, SafetyBUS p®, SafetyEYE®, SafetyNET p®, the spirit of safety® are registered and protected trademarks of Pilz GmbH & Co. KG in some countries.

SD means Secure Digital

Content

Introduction	4
Validity of documentation	4
Retaining the documentation	4
Definition of symbols	4
Intended use	5
For your safety	5
Unit features	5
Safety features	5
Block diagram/terminal configuration	6
Function description	6
Installation	7
Wiring	7
Preparing for operation	8
Operation	8
Status indicators	8
Faults – Interference	8
Dimensions in mm	9
Technical details	9
Safety characteristic data	12
Supplementary data	12
Service life graph	12
Order reference	14
EC declaration of conformity	14

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PZE X4

Introduction

Validity of documentation

This documentation is valid for the product PZE X4. It is valid until new documentation is published.

This operating manual explains the function and operation, describes the installation and provides guidelines on how to connect the product.

Retaining the documentation

This documentation is intended for instruction and should be retained for future reference.

Definition of symbols

Information that is particularly important is identified as follows:

DANGER!

This warning must be heeded! It warns of a hazardous situation that poses an immediate threat of serious injury and death and indicates preventive measures that can be taken.

WARNING!

This warning must be heeded! It warns of a hazardous situation that could lead to serious injury and death and indicates preventive measures that can be taken.

CAUTION!

This refers to a hazard that can lead to a less serious or minor injury plus material damage, and also provides information on preventive measures that can be taken.

NOTICE

This describes a situation in which the product or devices could be dam­ aged and also provides information on preventive measures that can be taken. It also highlights areas within the text that are of particular import­ ance.

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PZE X4

INFORMATION

This gives advice on applications and provides information on special fea­ tures.

Intended use

The unit meets the requirements of EN 60947­5­1, EN 60204­1 and VDE 0113­1. The con­ tact expansion module is used to increase the number of instantaneous safety contacts available on a base unit. Base units are all safety relays with feedback loop monitoring.

The category that can be achieved in accordance with EN ISO 13849­1 depends on the category of the base unit. The contact expansion module may not exceed this.

For your safety

}Only install and commission the unit if you have read and understood these operating instructions and are familiar with the applicable regulations for health and safety at work and accident prevention.

Ensure VDE and local regulations are met, especially those relating to safety.

}Any guarantee is rendered invalid if the housing is opened or unauthorised modifica­ tions are carried out.

}Note for overvoltage category III: If voltages higher than low voltage (>50 VAC or >120 VDC) are present on the unit, connected control elements and sensors must have a rated insulation voltage of at least 250 V.

Unit features

}Positive­guided relay outputs:

–4 safety contacts (N/O), instantaneous

}LED display for:

–Switch status channel 1/2

}Connection for feedback loop

}Operation: single­channel

Safety features

The unit meets the following safety requirements:

}The contact expander module expands an existing circuit. As the output relays are monitored via the base unit's feedback loop, the safety functions on the existing circuit are transferred to the contact expander module.

}The safety function remains effective in the case of a component failure.

}Earth fault in the feedback loop:

Detected, depending on the base unit that is used.

}Earth fault in the input circuit:

The output relays de­energise and the safety contacts open.

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