Pilz PNOZ s7.2 User manual
PNOZ s7.2
Operating Manual-21866-EN-10
}Safety relays
Preface
This document is the original document.
All rights to this documentation are reserved by Pilz GmbH & Co. KG. Copies may be made
for the user's internal purposes. Suggestions and comments for improving this documenta-
tion 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 s7.2
21866-EN-10 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 8
Function description 8
Installation 8
Wiring 10
Preparing for operation 11
Operation 11
Status indicators 11
Faults - malfunctions 12
Dimensions in mm 12
Technical details 12
Safety characteristic data 16
Supplementary data 17
Service life graph 17
Permitted operating height 19
Remove plug-in terminals 20
Order reference 20
EC declaration of conformity 20
PNOZ s7.2
Operating Manual PNOZ s7.2
21866-EN-10 4
Introduction
Validity of documentation
This documentation is valid for the product PNOZ s7.2. 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.
PNOZ s7.2
Operating Manual PNOZ s7.2
21866-EN-10 5
INFORMATION
This gives advice on applications and provides information on special fea-
tures.
Safety
Intended use
The unit meets the requirements of EN 60947-5-1, EN 60204-1 and VDE 0113-1. The con-
tact expansion module is used to increase the number of instantaneous safety contacts
available on a base unit.
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 [ 16] 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 [ 12]).
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 device 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 s7.2
Operating Manual PNOZ s7.2
21866-EN-10 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 a qualified and knowledgeable person who, because of their train-
ing, experience and current professional activity, has the specialist knowledge required. To
be able to inspect, assess and operate devices, systems and machines, the person has to
be informed of the state of the art and the applicable national, European and international
laws, directives and standards.
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 the section entitled Safety
}Have a good knowledge of the generic and specialist standards applicable to the spe-
cific 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 s7.2
Operating Manual PNOZ s7.2
21866-EN-10 7
Unit features
}Positive-guided relay outputs:
– 4 safety contacts (N/O), instantaneous
– 1 auxiliary contact (N/C), instantaneous
}Connection option for expansion modules
}LED for:
– Input status, channel1
– Input status, channel2
– Switch status of the safety contacts
}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.
PNOZ s7.2
Operating Manual PNOZ s7.2
21866-EN-10 8
Block diagram/terminal configuration
Fig.: Centre: Front view with cover, right: Front view without cover
*Safe separation from non-marked area in accordance with EN 60947-1, 6 kV, basic insula-
tion between all safety contacts.
Function description
with PNOZsigma s7.1:
}Dual-channel operation and supply voltage via PNOZsigma connector
with PNOZsigma expander modules:
}Dual-channel operation and supply voltage via PNOZsigma connector
Installation
Connect contact expansion module PNOZ s7.2 to PNOZsigma contact expansion
modules
}Connect the contact expansion modules using the connector supplied.
Control cabinet installation
}The safety relay 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).
Push the unit upwards or downwards before lifting it from the DIN rail.
PNOZ s7.2
Operating Manual PNOZ s7.2
21866-EN-10 9
Expansion options
Please note the max. power consumption of the
contact expansion modules (see technical data
PNOZs7.1).
: Base unit
: Contact expansion module PNOZs7.1
: Contact expansion module PNOZs7.2
: Contact expansion module PNOZs7.2 with ter-
minator
: Base unit
: Contact expansion module PNOZs7.1
: Contact expansion module PNOZs7.2
: Expansion module PNOZ s7, s8, s9, s10, s11 as
a terminator
: Contact expansion module PNOZs7.1 with ter-
minator
: Contact expansion module PNOZs7.2
: Contact expansion module PNOZs7.2 with ter-
minator
PNOZ s7.2
Operating Manual PNOZ s7.2
21866-EN-10 10
Expansion options
Please note the max. power consumption of the
contact expansion modules (see technical data
PNOZs7.1).
: Contact expansion module PNOZs7.1 with ter-
minator
: Contact expansion module PNOZs7.2
: Expansion module PNOZ s7, s8, s9, s10, s11 as
a terminator
: Base unit
: Contact expansion module PNOZs7.1
: Contact expansion module PNOZs7.2
: Contact expansion module PNOZs7.1
: Contact expansion module PNOZs7.2
: Contact expansion module PNOZs7.2 with ter-
minator
Wiring
Please note:
}Information given in the "Technical details [ 12]" must be followed.
}Outputs 13-14, 23-24, 33-34, 43-44 are safety contacts; outputs 51 -52 are auxiliary
contacts (e.g. for display).
}Auxiliary contact 51-52 shouldnot be used for safety circuits!
}To prevent contact welding, a fuse should be connected before the output contacts (see
Technical details [ 12]).
}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.
This manual suits for next models
3
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