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.
Contents
Contents
ContentsPage
Chapter 1 Introduction
1.1Validity of documentation1-1
1.1.1Retaining the documentation1-1
1.2Overview of documentation1-2
1.3Definition of symbols1-3
Chapter 2 Overview
2.1Unit structure2-1
2.1.1Scope of supply2-1
2.1.2Unit features2-1
2.2Front view2-2
Chapter 3 Safety
3.1Intended use3-1
3.2System requirements3-2
3.3Safety regulations3-3
3.3.1Use of qualified personnel3-3
3.3.2Warranty and liability3-3
3.3.3Disposal3-3
3.3.4For your safety3-4
Chapter 4 Function description
4.1Device properties4-1
4.1.1Integrated protection mechanisms4-1
4.1.2Function description4-1
4.1.2.1Operation4-1
4.1.2.2Block diagram4-2
Chapter 5 Installation
5.1General installation guidelines5-1
5.1.1Dimensions5-1
5.2Connecting the base unit and expansion
modules
5-2
Chapter 6 Commissioning
6.1General wiring guidelines6-1
6.1.1Insulation voltage test6-1
6.2Preparing for operation6-2
6.2.1Download modified project to the PNOZmulti safety system
1.3Definition of symbols1300Definition of symbols1-Einfhrung Zeichen
Information that is of particular importance can be 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 situations in which the unit(s) could be damaged
and also provides information on preventive measures that can
be taken.
INFORMATION
This gives advice on applications and provides information on
special features, as well as highlighting areas within the text that
are of special importance.
Link module to safely connect decentralised input/output modules to a
safety system PNOZmulti
The product has the following features:
` Can be configured in the PNOZmulti Configurator
` Max. 4 PNOZ ml2p can be connected to the base unit
` Max. 4 decentralised modules PDP67 F 8DI ION can be connected to
The expansion module is used to connect decentralised input/output
modules to a safety system PNOZmulti.
The expansion module may only be connected to a base unit from the
PNOZmulti modular safety system.
The PNOZmulti modular safety system is used for the safety-related interruption of safety circuits and is designed for use on:
` E-STOP equipment
` Safety circuits in accordance with VDE 0113 Part 1 and EN 60204-1
Intended use includes making the electrical installation EMC-compliant.
The product is designed for use in an industrial environment. It is not
suitable for use in a domestic environment, as this can lead to interference.
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 chapter entitled
` PNOZmulti Configurator: from Version 7.0.0
` Base unit PNOZ m0p: from Version 3.0
` Base unit PNOZ m1p: from Version 6.0
` Base unit PNOZ m1p ETH: from Version 2.0
` Base unit PNOZ m2p: from Version 3.0
` Base unit PNOZ m3p: from Version 2.0
The products may only be assembled, installed, programmed, commissioned, operated, maintained and decomissioned by persons with proven skills. Persons with proven skills are people who, because they are:
` Qualified electrical engineers or
` Have received training from qualified electrical engineers
are suitably experienced to operate 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 prevention
` Have read and understood the safety guidelines given in this descrip-
tion
` Have a good knowledge of the generic and specialist standards ap-
plicable to the specific application.
3.3.2Warranty and liability
Warranty and liability3-Sich Gewhrleistung
3.3.3Disposal
Disposal3-Si ch Entsorgung_alt
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 compo-
nents on the PCB boards, soldering work etc.).
The product must be disposed of properly when it reaches the end of its
service life.
The unit meets all necessary conditions for safe operation. However,
you should always ensure that the following safety requirements are
met:
` This operating manual only describes the basic functions of the unit.
Information on the advanced functions can be found in the online help
for the PNOZmulti Configurator and in the PNOZmulti technical catalogue. Only use these functions after you have read and understood
the documentation. All necessary documentation can be found on the
PNOZmulti Configurator CD.
` Do not open the housing or make any unauthorised modifications.
` Please make sure you shut down the supply voltage when performing
The relay conforms to the following safety criteria:
` The circuit is redundant with built-in self-monitoring.
` The safety function remains effective in the case of a component fail-
ure.
4.1.2Function description
Function description4-
4.1.2.1Operation
Operation4-Funktionsbeschreibung PNOZ ml2p
The link module PNOZ ml2p is used to safely transfer the input informa-
Funktionen_multi_Basis
tion from decentralised modules to the safety system PNOZmulti.
Funktionsbeschreibung PNOZ ml2p_2
The function of the safety system's inputs and outputs depends on the
safety circuit created using the PNOZmulti Configurator. A chip card is
used to download the safety circuit to the base unit. The base unit has
2 microcontrollers that monitor each other. They evaluate the input circuits on the base unit and expansion modules and switch the outputs on
the base unit and expansion modules accordingly.
The LEDs on the base unit and expansion modules indicate the status
of the PNOZmulti safety system.
The online help on the PNOZmulti Configurator contains descriptions of
the operating modes and all the functions of the PNOZmulti safety system, plus connection examples.
Data exchange:
` Communication with the decentralised modules is via a safe data link.
` The link module PNOZ ml2p reads the input information from the de-
centralised modules as part of each cycle and then forwards it to the
base unit.
` At the end of a PNOZmulti cycle, the base unit sends its output data
to its link module. This output data is immediately sent to the decentralised modules.
` The safety system should be installed in a control cabinet with a pro-
tection type of at least IP54. Fit the safety system to a horizontal DIN
rail. The venting slots must face upward and downward. Other mounting positions could destroy the safety system.
` Use the notches on the back of the unit to attach it to a DIN rail. Con-
nect the safety system to the DIN rail in an upright position so that the
earthing springs on the safety system are pressed on to the DIN rail.
` The ambient temperature of the PNOZmulti units in the control cabi-
net must not exceed the figure stated in the technical details, otherwise air conditioning will be required.
` To comply with EMC requirements, the DIN rail must have a low im-
pedance connection to the control cabinet housing.
CAUTION!
Damage due to electrostatic discharge!
Electrostatic discharge can damage components. Ensure
against discharge before touching the product, e.g. by touching
an earthed, conductive surface or by wearing an earthed armband.
` Information given in the "Technical details" must be followed.
` 2 connection terminals are available for each of the supply connec-
tions 24 V and 0 V. This means that the supply voltage can be looped
through several connections. The current at each terminal may not
exceed 3 A.
` Please refer to the technical details for information on the maximum
cable length. Please also read the section entitled "Voltage drop".
` Shielded cable must be used from a cable length of 30 m.
` Pilz pre-assembled cable can be used to connect the decentralised
modules (see order reference).
` The plug-in connection terminals are either designed as cage clamp
terminals or screw terminals (see order reference).
6.1.1Insulation voltage test
Insulation voltage test6-Isolationsspannungsprüfung
The product PNOZ ml2p is connected to functional earth via protection elements on the supply voltage. Insulation voltage tests are only
possible with voltages up to ca. 42 V.
CAUTION!
Only connect and disconnect the expansion module when the
supply voltage is switched off.
6.2Preparing for operation6200Preparing for operation6-
6.2.1Download modified project to the PNOZmulti safety system
Download modified project to the PNOZmulti safety system6-Verdrahtung_multi_Modul_Betr_geaend_Projekt_BA
As soon as an additional expansion module has been connected to the
system, the project must be amended using the PNOZmulti Configurator. Proceed as described in the operating instructions for the base unit.
NOTICE
For the commissioning and after every program change, you
must check whether the safety devices are functioning correctly.
When the supply voltage is switched on, the PNOZmulti safety system
copies the configuration from the chip card.
The LEDs "POWER","DIAG", "FAULT", "IFAULT" and "OFAULT" light up
on the base unit.
The PNOZmulti safety system is ready for operation when the "POWER"
and "RUN" LEDs on the base unit and the "READY" LED on the
PNOZ ml2p are lit continuously.
` Link module (in order, defective, no supply voltage)
` Status of communication with the decentralised modules (data valid,
data invalid)
If the connection to a decentralised module is interrupted or there is a
major error on the decentralised module, the inputs on the devices connected to the link module are set to zero. The base unit remains in a RUN
condition.
Supply voltage UB DC24 V
Voltage tolerance-15 %/+20 %
Power consumption at U
without load5.0 W
Residual ripple DC5 %
Status displayLED
Times
Switch-on delay5.00 s
Supply interruption before de-energisation 20 ms
Maximum input delay15 ms
Switch-off delay35 ms
Outputs
Maximum output current decentralised module supply4 A
Short-circuit protection of the decentralised module sup-
ply
Environmental data
EMCEN 60947-5-1
Vibration to EN 60068-2-6
Frequency10 - 55 Hz
Amplitude0.35 mm
Climatic suitabilityEN 60068-2-78
Airgap creepage in accordance with EN 60664-1
Ambient temperature0 - 60 °C
Storage temperature-25 - 70 °C
Mechanical data
Protection type
Mounting (e.g. cabinet)IP54
HousingIP20
TerminalsIP20
DIN rail
Top hat rail35 x 7.5 EN 50022
Recess width27 mm
Maximum cable run unscreened30 m
Maximum cable run screened100 m
Housing material
HousingPPO UL 94 V0
FrontABS UL 94 V0
Cross section of external conductors with screw terminals
1 core flexible0.50 - 1.50 mm² , 22 - 14 AWG
2 core, same cross section, flexible:
with crimp connectors, without insulating sleeve0.50 - 0.75 mm² , 22 - 20 AWG
without crimp connectors or with TWIN crimp connectors0.50 - 0.75 mm² , 22 - 20 AWG
2 core, same cross section, flexible:
Torque setting with screw terminals0.25 Nm
Cross section of external conductors with spring-loaded
terminals: Flexible with/without crimp connectors
Spring-loaded terminals: Terminal points per connection1
Stripping length9 mm