Pilz PZE X4VP4 Manuale utente

PZE X4VP4

Operating Manual 1003205-EN-08

}Safety relays

Preface

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.

Source code from third-party manufacturers or open source software has been used for

some components. The relevant licence information is available on the Internet on the Pilz

homepage.

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

Contents

Operating Manual PZE X4VP4

1003205-EN-08 3

Introduction 4

Validity of documentation 4

Using the documentation 4

Definition of symbols 4

Safety 5

Intended use 5

Safety regulations 5

Safety assessment 5

Use of qualified personnel 5

Warranty and liability 6

Disposal 6

For your safety 6

Unit features 7

Safety features 7

Block diagram/terminal configuration 7

Function description 8

Installation 8

Wiring 8

Preparing for operation 9

Operation 10

Status indicators 10

Faults – Interference 10

Dimensions in mm 11

Technical details 11

Safety characteristic data 14

Supplementary data 15

Service life graph 15

Remove plug-in terminals 16

Order reference 16

EC declaration of conformity 17

PZE X4VP4

Operating Manual PZE X4VP4

1003205-EN-08 4

Introduction

Validity of documentation

This documentation is valid for the product PZE X4VP4. 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.

Using the documentation

This document is intended for instruction. Only install and commission the product if you

have read and understood this document. The document should be retained for future ref-

erence.

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.

PZE X4VP4

Operating Manual PZE X4VP4

1003205-EN-08 5

INFORMATION

This gives advice on applications and provides information on special fea-

tures.

Safety

Intended use

The contact expansion module PZE X4VP4 meets the requirements of EN 60947-5-1, EN

60204-1 and VDE 0113-1. It is an expansion module for increasing the number of contacts

available on a base unit. Base units are all safety relays with feedback loop.

The max. achievable safety level depends on the base unit. The expansion module may not

exceed this. The safety-related characteristic values stated under Safety-related character-

istic data [ 14] can only be achieved if the base unit also exhibits these values.

The following is deemed improper use in particular:

}Any component, technical or electrical modification to the product

}Use of the product outside the areas described in this manual

}Use of the product outside the technical details (see Technical details [ 11]).

NOTICE

EMC-compliant electrical installation

The product is designed for use in an industrial environment. The product

may cause interference if installed in other environments. If installed in other

environments, measures should be taken to comply with the applicable

standards and directives for the respective installation site with regard to in-

terference.

Safety regulations

Safety assessment

Before using a unit it is necessary to perform a safety assessment in accordance with the

Machinery Directive.

Functional safety is guaranteed for the product as a single component. However, this does

not guarantee the functional safety of the overall plant/machine. In order to achieve the re-

quired safety level for the overall plant/machine, define the safety requirements for the

plant/machine and then define how these must be implemented from a technical and organ-

isational standpoint.

Use of qualified personnel

The products may only be assembled, installed, programmed, commissioned, operated,

maintained and decommissioned by competent persons.

PZE X4VP4

Operating Manual PZE X4VP4

1003205-EN-08 6

A competent person is someone who, because of their training, experience and current pro-

fessional activity, has the specialist knowledge required to test, assess and operate the

work equipment, devices, systems, plant and machinery in accordance with the general

standards and guidelines for safety technology.

It is the company’s responsibility only to employ personnel who:

}Are familiar with the basic regulations concerning health and safety / accident preven-

tion

}Have read and understood the information provided in this description under "Safety"

}And have a good knowledge of the generic and specialist standards applicable to the

specific application.

Warranty and liability

All claims to warranty and liability will be rendered invalid if

}The product was used contrary to the purpose for which it is intended

}Damage can be attributed to not having followed the guidelines in the manual

}Operating personnel are not suitably qualified

}Any type of modification has been made (e.g. exchanging components on the PCB

boards, soldering work etc.).

Disposal

}In safety-related applications, please comply with the mission time TM in the safety-re-

lated characteristic data.

}When decommissioning, please comply with local regulations regarding the disposal of

electronic devices (e.g. Electrical and Electronic Equipment Act).

For your safety

The unit meets all the necessary conditions for safe operation. However, please note the

following:

}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.

PZE X4VP4

Operating Manual PZE X4VP4

1003205-EN-08 7

Unit features

}Positive-guided relay outputs:

– 4 safety contacts (N/O), delay-on de-energisation

}LED display for:

– Switch status of the safety contacts

}Connection for feedback loop

}Operation: single-channel

}Selectable delay time

}Plug-in connection terminals (either spring-loaded terminal or screw terminal)

}See order reference for unit types

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 de-energise and the safety contacts open.

Block diagram/terminal configuration

4A 2B

3B 1B4B1A

2A3A

Delay

*Insulation between the non-marked area and the relay contacts: Basic insulation (over-

voltage category III), Protective separation (overvoltage category II)

PZE X4VP4

Operating Manual PZE X4VP4

1003205-EN-08 8

Function description

The contact expansion module PZE X4VP4 is an add-on device with selectable delay-on

de-energisation, and it is used to expand a safety circuit. The contact expansion module is

driven by a base unit (e. g. emergency stop relay).

}Functional procedure once the input circuit is closed (e.g. safety contacts on the base

unit are closed):

– The supply voltage is present at input (A1) of the contact expansion module.

– The safety contacts 17-18, 27-28, 37-38 and 47-48 close.

– The LEDs "CH.1" and "CH.2" are lit.

}Functional procedure once the input circuit is opened (e.g. safety contacts on the base

unit are opened):

– The supply voltage is not present at input (A1) of the contact expansion module.

– The LEDs "CH.1" and "CH.2" go out.

– Safety contacts 17-18, 27-28, 37-38 and 47-48 are opened redundantly once the

delay time has elapsed.

NOTICE

At the latest the safety contacts open after the set delay time tv + 50% of the

set value, even in the case of a component failure.

Installation

}The unit should be installed in a control cabinet with a protection type of at least IP54.

}Use the notch on the rear of the unit to attach it to a DIN rail.

}Ensure the unit is mounted securely on a vertical DIN rail (35 mm) by using a fixing ele-

ment (e.g. retaining bracket or an end angle).

Wiring

Please note:

}Information given in the "Technical details [ 11]" must be followed.

}Outputs 17-18, 27-28, 37-38 and 47-48 are delay-on de-energisation safety contacts.

}To prevent contact welding, a fuse should be connected before the output contacts (see

Technical details [ 11]).

}Calculation of the max. cable runs lmax in the input circuit:

Rlmax

Rl / km

Imax =

Rlmax = max. overall cable resistance (see Technical details [ 11])

Rl/km = cable resistance/km

}Use copper wire that can withstand 60/75°C.

}Sufficient fuse protection must be provided on all output contacts with capacitive and in-

ductive loads.

PZE X4VP4

Operating Manual PZE X4VP4

1003205-EN-08 9

}Do not switch low currents using contacts that have been used previously with high cur-

rents.

}The power supply must comply with the regulations for extra low voltages with protect-

ive electrical separation (SELV, PELV) in accordance with VDE 0100, Part 410.

}Ensure the wiring and EMC requirements of IEC 60204-1 are met.

Preparing for operation

Supply voltage AC DC

A2 PZE

24 V DC

0 V

Input circuit Single-channel Dual-channel

Base unit:

Safety relay PNOZX

Driven via safety contacts

A2 PZE

24 V DC

0 V

Feedback loop Base unit: Safety relay PNOZ X

Y1 and Y2 are inputs on the base

unit; they evaluate the feedback

loop

Setting the delay time

PZE X4VP4

Operating Manual PZE X4VP4

1003205-EN-08 10

Operation

NOTICE

The safety function should be checked after initial commissioning and each

time the plant/machine is changed. The safety functions may only be

checked by qualified personnel.

Status indicators

LEDs indicate the status and errors during operation:

LED on

CH.1

Safety contacts of channel 1 are closed.

CH.2

Safety contacts of channel 2 are closed.

Faults – Interference

By closing or interrupting the input circuit you can check whether the unit switches on or off

correctly.

For safety reasons, the unit cannot be started if the following faults are present:

}Contact malfunction: As the contact block is connected to a base unit,

reactivation will not be possible if the contacts have welded after the input circuit has

opened.

}Open circuit, short circuit or earth fault ( e.g. in the input circuit)

}In the case of an error, the delay-on de-energisation safety contacts may open before

the delay time has elapsed.

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