Pilz PNOZ po3.2p Bedienungsanleitung

PNOZ po3.2p

Operating Manual 20677-EN-06

}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 PNOZ po3.2p

20677-EN-06 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 6

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 9

Preparing for operation 10

Operation 10

Status indicators 10

Faults – Interference 11

Dimensions in mm 11

Technical details 11

Safety characteristic data 14

Supplementary data 14

Service life graph 15

Remove plug-in terminals 16

Order reference 16

EC declaration of conformity 17

PNOZ po3.2p

Operating Manual PNOZ po3.2p

20677-EN-06 4

Introduction

Validity of documentation

This documentation is valid for the product PNOZ po3.2p. It is valid until new documenta-

tion 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.

PNOZ po3.2p

Operating Manual PNOZ po3.2p

20677-EN-06 5

INFORMATION

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

tures.

Safety

Intended use

The PNOZ po3.2p is an expansion module of the safety system PNOZpower. It may only

be used with a base unit or a control module of the modular safety system PNOZpower.

The expansion module meets the requirements of EN60947-5-1, EN60204-1 and

VDE0113-1.

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 safety charac-

teristic 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.

PNOZ po3.2p

Operating Manual PNOZ po3.2p

20677-EN-06 6

Use of qualified personnel

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

maintained and decommissioned by competent persons.

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.

PNOZ po3.2p

Operating Manual PNOZ po3.2p

20677-EN-06 7

Unit features

}Expansion module control inputs via PNOZpower bus

}Positive-guided relay outputs:

– 4 safety contacts (N/O)

}LED indicator for:

– Supply voltage

– Switch state of the safety contacts

– Error

}Plug-in connection terminals

Safety features

In conjunction with a base unit of the safety system PNOZpower, the expansion module ful-

fils the following safety requirements:

}The circuit is redundant with built-in self-monitoring.

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

}The correct opening and closing of the safety device relays is tested automatically in

each on-off cycle.

Block diagram/terminal configuration

PNOZpower-Bus

13 23 33 43

14 24 34 44

95185

*Safe separation from non-marked area in accordance with EN 60947-1, 6 kV, basic insula-

tion between all safety contacts.

PNOZ po3.2p

Operating Manual PNOZ po3.2p

20677-EN-06 8

Function Description

The safety contacts are controlled by the base unit. The base unit controls the status of the

input circuits and the feedback loop. The supply voltage is fed via the PNOZpower bus.

When supply voltage is applied the "POWER" LED will light. The unit is ready for operation

when the feedback loop and the start circuit are closed at the base unit.

}Functional procedure after closing the input circuit of the base unit:

– The safety contacts 13-14, 23-24, 33-34 and 43-44 close.

– The LEDs "CH. 1" and "CH. 2" are lit.

}Functional procedure after opening the input circuit of the base unit:

– Safety contacts 13-14, 23-24, 33-34 and 43-44 are opened redundantly.

– The LEDs "CH. 1" and "CH. 2" go out.

NOTICE

When controlling an expansion module via the den PNOZpower bus the

switch-on delay/delay-on de-energisation of the controlling device (e.g base

unit, control module, ...) and the expansion module are added together.

Installation

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

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

}Fit the unit to a horizontal DIN rail. If other mounting positions are used, the switching

capability values stated in the technical details cannot be maintained.

}There are 2 sockets on the rear of the PNOZ po3.2p.

The base unit/control module and the expansion modules are connected using the

jumpers supplied.

NOTICE

Always connect a terminator to the first and last device.

}Only use terminators, jumpers and terminals of the modular safety system PNOZpower.

}Layout:

– The base module and the expansion modules can be installed in any position on

the PNOZpower modular safety system.

}Maximum hardware:

– 1 base unit/control module

– 4 expansion modules

– 1 power supply unit

PNOZ po3.2p

Operating Manual PNOZ po3.2p

20677-EN-06 9

Power supply Base unit Expansion module 1 Expansion module 4

95579

Terminator

95579

Terminator

95425

Jumper

Order no: 779120 Order no: 779120Order no: 774639

PNOZ po3.2p

WARNING!

Risk of electrocution!

When voltage is applied, contact with live components could result in seri-

ous or even fatal injury from an electric shock.

The plug-in connection terminals should only be connected and disconnec-

ted when the voltage is switched off.

Wiring

Please note:

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

}The outputs 13-14, 23-24, 33-34 and 43-44 are safety contacts.

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

Technical details [ 11]).

}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.

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

rents.

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

PNOZ po3.2p

Operating Manual PNOZ po3.2p

20677-EN-06 10

Preparing for operation

The expansion module is ready for operation when it is connected to a base unit via the

PNOZpower bus.

If the contactors are to be controlled directly, we recommend the following wiring:

Feedback loop

Contacts from external contactors

K5 N

13 (23 ...)

14 (24 ...)

Y1 K5 K6

Base unit

Expansion module

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

POWER

Supply voltage is present.

CH.1

Safety contacts of channel 1 are closed.

CH.2

Safety contacts of channel 2 are closed.

FAULT

Contact malfunction

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