Pilz PSSu E F BSW User manual

PSSu E F BSW(-T)
Operating Manual 21372-EN-06
}Decentralised system PSSuniversal I/O

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.
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 PSSu E F BSW(-T)
21372-EN-06 3
Section 1 Introduction 5
1.1 Validity of documentation 5
1.1.1 Retaining the documentation 5
1.2 Definition of symbols 5
Section 2 Overview 7
2.1 Module structure 7
2.2 Module features 7
2.3 Front view 8
Section 3 Safety 10
3.1 Intended use 10
3.2 Safety regulations 11
3.2.1 Use of qualified personnel 11
3.2.2 Warranty and liability 11
3.2.3 Disposal 11
Section 4 Function description 12
4.1 Block diagram 12
4.2 Module features 12
4.2.1 Integrated protection mechanisms 12
4.2.2 Functions 13
4.3 Configuration 14
4.3.1 Addressing with SafetyBUS p 15
4.3.2 Addresses in the process image 15
4.3.3 FS error behaviour 15
Section 5 Installation 16
5.1 General installation guidelines 16
5.1.1 Dimensions 16
5.2 Installing the base module 17
5.3 Inserting and removing an electronic module 18
5.3.1 Inserting an electronic module 19
5.3.2 Removing an electronic module 20
5.3.3 Changing an electronic module during operation 20
Section 6 Wiring 21
6.1 General wiring guidelines 21
6.1.1 Mechanical connection of the base modules 22
6.2 Terminal configuration 24
6.3 Connecting the module 27
Section 7 Operation 29
7.1 Messages 29
7.2 Display elements 30
7.2.1 Display elements for module diagnostics 30
7.2.2 Display elements for supply voltage 31

Contents
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Section 8 Technical Details 32
8.1 Safety characteristic data 34
8.2 Service life table 35
Section 9 Order reference 36
9.1 Product 36
9.2 Accessories 36

Introduction
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1 Introduction
1.1 Validity of documentation
This documentation is valid for the products PSSu E F BSW and PSSu E F BSW-T. 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.
Electronic module to switch off the periphery supply for failsafe applications
1.1.1 Retaining the documentation
This documentation is intended for instruction and should be retained for future reference.
1.2 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.

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

Overview
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2 Overview
2.1 Module structure
A module consists of
}Electronic module and
}Base module with
– Screw terminals or
– Cage clamp terminals
The base modules are the carrier units for the electronic modules and are used to connect
the field wiring. The electronic modules are inserted on to the base modules and determine
the module's function.
Details of the base modules that can be used are available in the chapter entitled “Intended
Use”.
2.2 Module features
The product has the following features:
}Infeed for periphery supply
}Infeed for C-rail supply
}Failsafe switching off of the periphery supply (block switching)
}LEDs for:
– Switch status of periphery supply
– Periphery supply
– Module error
}Application range depends on the base module
}T-type:
PSSu E F BSW-T: for increased environmental requirements

Overview
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2.3 Front view
2111
2212
2313
Err
11 21
12
0V
22
0V
13 23
14
C
24
C
PSSu E F
BSW
SW
24V
24V 24V
2414
PSSu E F
BSW
312230
000000
001
1
3
8
7
4
5
6
10
2
11
9
12
A
B
Legend:
}A: Electronic module
}B: Base module
}1: LED for module diagnostics
}2: Labelling strip with:
– Name of electronic module
– Order Number
– Serial number
– Hardware version number
– 2D code
}3: Labelling strip for the terminal configuration on the base module
}4: Status LEDs
}5: Name of electronic module
}6: Connection level 1
}7: Connection level 2
}8: Connection level 3

Overview
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}9: Connection level 4
}10: Square mounting holes (connection levels 1, 2, 3 and 4)
– With screw to loosen/tighten the screw terminal on base modules with screw termin-
als
– With mechanism to operate the cage clamp on base modules with cage clamp ter-
minals
}11: Round connection holes (connection levels 1, 2, 3 and 4) for connecting the signal
lines
}12: Mounting slot for colour marker to label the connection level (connection levels 1, 2,
3 and 4)

Safety
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3 Safety
3.1 Intended use
The module meets the requirements of EN IEC 61508 up to SIL3 and EN954-1 up to Cat-
egory4.
The module may be used to switch off the periphery supply on standard modules.
}If the module is used to switch off standard output modules (e.g. PSSu ES 4DO0.5 or
PSSu ES 2DO2), Category3 of EN954-1 can be achieved.
}If the module is used to switch off modules of type PSSuEPD, Category4 of EN954-1
can be achieved.
The module may be used to switch:
}Resistive loads
}Inductive loads
The module PSSu E F BSW-T is suitable for use where there are increased environmental
requirements (see Technical Details).
Intended use includes making the electrical installation EMC-compliant. Please refer to the
guidelines stated in the "PSSuniversal Installation Manual". The module 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 module
}Use of the module outside the areas described in this manual
}Any use of the module that is not in accordance with the technical details.
INFORMATION
The module is supported by the PSSuniversal Configurator and PSSuniver-
sal Assistant from Version 1.4.0. We recommend that you always use the
latest version (download from www.pilz.de).
The PSSu E F BSW module may be used in conjunction with the following base modules:
}PSSu BS 2/8 S
}PSSu BS 2/8 C
The module PSSu E F BSW-T may be used in conjunction with the following base modules:
}PSSu BS 2/8 S-T
}PSSu BS 2/8 C-T
WARNING!
The module may not be used in combination with compact modules or
modules with relay outputs in safety-related applications.

Safety
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3.2 Safety regulations
3.2.1 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.
3.2.2 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.).
3.2.3 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).

Function description
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4 Function description
4.1 Block diagram
=
=
(C-Rail)
Module Bus
Periphery
Supply
+ 24 V DC
Module
Supply
+ 5 V DC
Data
(FS)
14 24
12 22 13 23
Power
Periphery
Supply
11 21
K2
K1 K0
4.2 Module features
4.2.1 Integrated protection mechanisms
The module has the following protection mechanisms:
}Periphery supply
– Voltage monitoring (exceeding upper/lower limit)
}2 relay contacts connected in series to feed the periphery supply: +24 V DC
}1 relay contact to feed the periphery supply: 0 V DC
}Thermistor monitor
The module provides the following diagnostic data:
}Start-up error
}Configuration error
}FS communication error
}Bus termination error
}Temperatur error: Too warm
}Temperatur error: Too hot
}Relay control error
}Relay error
}Block switching output error
}Overvoltage error
}Undervoltage error
}Error in the overvoltage protection diodes

Function description
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4.2.2 Functions
Module supply
}The module supply provides the module with voltage.
Voltage infeed
}Refreshing the periphery supply: The relevant base module interrupts the connection to
the incoming (left-hand) periphery supply and C-rail on the module bus.
}Supply to the module bus:
– Periphery supply for subsequent modules (right-hand side)
– C-rail supply for subsequent modules (right-hand side)
}The module does not automatically switch off the periphery supply in the case of under
or overvoltage. However, there will be a visual signal (“24 V” LED) and a message will
be sent to the head module (entry in the error stack).
Block switching
}The module is used to switch off the periphery supply safely on standard modules that
are arranged in blocks.
}Each output block requires its own block switching module.
}The periphery supply can be switched off via the controller's failsafe user program.
}The periphery supply is switched off if a module error is detected.
}A new supply voltage module or a terminating plate signifies the end of an output block.
}The relationship between the load current and the operating temperature is illustrated in
the following derating diagram. The operating point should be below the characteristic
curve.
Derating diagram (PSSu E F BSW): Permitted ambient temperature T dependent on load
current I
20
40
60
80
100
0
1 2 3 4 5 6 7 8 9 10
25
T [°C]
I [A]

Function description
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Derating diagram (PSSu E F BSW-T): Permitted ambient temperature T dependent on load
current I
20
40
60
80
100
0
1 2 3 4 5 6 7 8 9 10
45
T [°C]
I [A]
4.3 Configuration
Functions for block switching can be defined in the PSSuniversal Configurator on the
PSSWIN-PRO system software. Block switching is addressed as an FS output in the sys-
tem software:
}Read access through the standard bus system:
“R” configuration
INFORMATION
The PSSuniversal Configurator on the PSSWIN-PRO system software
must be used to define the I/O-Groups to which FS inputs and outputs be-
long (SafetyBUSp). The PSSu can be divided into sections A and B for this
purpose. All the FS outputs on a PSSu always belong to section A.
Section A and section B on a PSSu may belong to different I/O-Groups.
Further information on configuration is available in the PSSuniversal Configurator's online
help.

Function description
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4.3.1 Addressing with SafetyBUS p
The SafetyBUS p address of an output is composed of the device address and the consec-
utive number of the FS output (<Device.address>.<Number of output>)
The following SafetyBUS p addresses are possible:
SafetyBUS p network Address range
SafetyBUS p0 O32.00D ... O95.31D
SafetyBUS p 1 O132.00D ... O195.31D
4.3.2 Addresses in the process image
The module occupies one bit address in the process image. The process image in which
the outputs are shown depends on the configuration of the FS outputs.
Configuration SafetyBUS p Standard bus system
FS-PIO ST-PII ST-PIO
None 1 Bit
(e.g.: 32.00)
- - - - - -
Read ST
(“R”)
1 Bit - - -
4.3.3 FS error behaviour
In the case of a safety-related error on an FS output, all FS outputs in the affected I/O-
Group (SafetyBUSp) are shut down.
In the case of a safety-related error on an FS input, the process image of all FS inputs in
the affected I/O-Group (SafetyBUSp) is set to zero.
The I/O-Group switches to a STOP condition. An error telegram is then triggered on Safety-
BUS p and the error is entered in the PSSuniversal error stack.

Installation
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5 Installation
5.1 General installation guidelines
Please refer also to the PSSuniversal Installation Manual.
NOTICE
Damage due to electrostatic discharge!
Electrostatic discharge can damage components. Ensure against discharge
before touching the product, e.g. by touching an earthed, conductive sur-
face or by wearing an earthed armband.
5.1.1 Dimensions
25,2 mm
76 mm
52,1 mm8,1 mm
67,7 mm
25,2 mm
56,1 mm 71,8 mm 0,8 mm
128,9 mm
72,7 mm
(2.862")
(2.992")
(2.209") (2.827") (0.031")
5.075")
(0.992") (2.051")(0.319")
(0.992")
(2.665")

Installation
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5.2 Installing the base module
Prerequisite:
}The head module must be installed.
}If the head module does not have an integrated power supply, a supply voltage module
must be installed to the right of the head module.
Please note:
}For mechanical reasons it is not possible to mix base modules with screw terminals and
base modules with cage clamp terminals.
}All contacts should be protected from contamination.
}The mechanics of the base modules are designed for 50 plug in/out cycles.
Procedure:
}We recommend that you wire up the base modules before inserting the electronic mod-
ules.
}Slot the groove on the base module on to the mounting rail from below [1].
}Push the base module back [2] until you hear it lock into position.
}On the mounting rail, slide the base module to the left until you hear the two lateral
mounting hooks on the adjacent module lock into position [3].
Schematic representation:
[2]
[1]
[3]

Installation
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5.3 Inserting and removing an electronic module
Please note:
}Only insert on to base modules that are already installed.
}Preferably these base modules should be ready wired.
}Electronic modules with outputs may only be inserted and removed when the load is
switched off. Unforeseeable error reactions may be triggered if modules are inserted
and removed under load.
}When an electronic module is plugged into a base module for the first time, one part of
the coding element remains on the electronic module, while its counterpart is fixed on to
the base module. This is how the base module is coded.
}The mechanics of the electronic modules are designed for 50 plug in/out cycles.

Installation
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5.3.1 Inserting an electronic module
Procedure:
}The electronic module must audibly lock into position [1].
}Mark the electronic module using the labelling strips [2].
Schematic representation:
[2]
[1]
[1]

Installation
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5.3.2 Removing an electronic module
Procedure:
}Press the locking mechanisms [1] together simultaneously.
}Pull out the electronic module [2].
Schematic representation:
[1]
[2]
[1]
5.3.3 Changing an electronic module during operation
It is possible to change an electronic module during operation. The configuration data is re-
tained when a module is changed.
Effects:
}System environment A:
– In the event of a potential FS communication error, the FS section of the PSSu sys-
tem and all relevant I/O-Groups (SafetyBUS p) switch to a STOP condition.
}System environment B:
– All FS hardware outputs on the PSSu system switch to a safe condition.
– The substitute values are used for the modules' FS outputs, with Valid Bits =
FALSE.
CAUTION!
Sparking can cause interference and errors!
Only change the module when the load is switched off!