Pilz PSSu E AI SHT2 User manual

PSSu E AI SHT2
Operating Manual 1003113-EN-02
}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.
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 PSSu E AI SHT2
1003113-EN-02 3
Section 1 Introduction 4
1.1 Validity of documentation 4
1.1.1 Retaining the documentation 4
1.1.2 Terminology: System environment A and B 4
1.2 Definition of symbols 5
Section 2 Overview 6
2.1 Module structure 6
2.2 Module features 6
2.3 Front view 7
Section 3 Safety 9
3.1 Intended use 9
3.2 Safety regulations 10
3.2.1 Use of qualified personnel 10
3.2.2 Warranty and liability 10
3.2.3 Disposal 10
Section 4 Function Description 11
4.1 Block diagram 11
4.2 Module features 11
4.2.1 Functions 11
Section 5 Installation 13
5.1 General installation guidelines 13
5.1.1 Dimensions 13
5.2 Installing the base module 14
5.3 Inserting and removing an electronic module 15
5.3.1 Inserting an electronic module 16
5.3.2 Removing an electronic module 17
5.3.3 Changing an electronic module during operation 17
Section 6 Wiring 18
6.1 General wiring guidelines 18
6.1.1 Mechanical connection of the base modules 18
6.2 Terminal configuration 20
6.3 Connecting the module 23
Section 7 Technical details 24
Section 8 Order reference 26
8.1 Product 26
8.2 Accessories 26

Introduction
Operating Manual PSSu E AI SHT2
1003113-EN-02 4
1 Introduction
1.1 Validity of documentation
This documentation is valid for the product type E AI SHT2. 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.
1.1.1 Retaining the documentation
This documentation is intended for instruction and should be retained for future reference.
1.1.2 Terminology: System environment A and B
The PSSu system can be used in two different system environments. The module's applic-
ation area is described in the chapter "Intended Use" of the manual.
The distinction is made between
}PSSu in system environment A
}PSSu in system environment B
The distinction is based on the application area of the PSSu system.
PSSu in system environment A may be used in the
}Decentralised system PSSu I/O
}Not in the automation system PSS 4000
PSSu in system environment B may be used in the
}Automation system PSS 4000, e.g. with
– Decentralised system PSSu I/O with SafetyNET p
– Control system PSSu PLC
– Control system PSSu multi

Introduction
Operating Manual PSSu E AI SHT2
1003113-EN-02 5
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.
INFORMATION
This gives advice on applications and provides information on special fea-
tures.

Overview
Operating Manual PSSu E AI SHT2
1003113-EN-02 6
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:
}1 analogue current input
Current range:
0 ... 0.2 A, single-pole, referenced to earth
}2 analogue current outputs
Current range:
0 .. 20mA, single-pole, referenced to earth
– Scaling of input current 1:10 and 1:20
– Evaluation via analogue input module with an input resistance = 115Ohm, (e.g.
PSSuEFAI I), order no.: 312 260)
}For standard and failsafe applications in system environment A and B

Overview
Operating Manual PSSu E AI SHT2
1003113-EN-02 7
2.3 Front view
2
2
Legend:
}A: Electronic module
}B: Base module
}1: Labelling strip with:
– Name of electronic module
– Order number
– Serial number
– Hardware version number
– 2D code
}2: Labelling strip for the terminal configuration on the base module
}3: Name of electronic module
}4: Connection level 1
}5: Connection level 2
}6: Connection level 3
}7: Connection level 4

Overview
Operating Manual PSSu E AI SHT2
1003113-EN-02 8
}8: 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
}9: Round connection holes (connection levels 1, 2, 3 and 4) for connecting the signal
lines
}10: Mounting slot for colour marker to label the connection level (connection levels 1, 2,
3 and 4)

Safety
Operating Manual PSSu E AI SHT2
1003113-EN-02 9
3 Safety
3.1 Intended use
The module provides shunts to scale the current for analogue inputs. The module may be
used in conjunction with analogue current inputs (e.g. PSSuEFAII, order no.: 312 260).
The module may be used for standard applications in system environment A and B.
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.
The E AI SHT2 module may be used in conjunction with the following base modules:
}PSSu BP 1/8 S
}PSSu BP 1/8 C
}PSSu BP 1/12 S
}PSSu BP 1/12 C
}PSSu BP-C 1/8 S
}PSSu BP-C 1/8 C
}PSSu BP-C 1/12 S
}PSSu BP-C 1/12 C

Safety
Operating Manual PSSu E AI SHT2
1003113-EN-02 10
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
Operating Manual PSSu E AI SHT2
1003113-EN-02 11
4 Function Description
4.1 Block diagram
13 23
C-Rail
16 26
(C-Rail)
14 11
21
24
12
22
R1
R2
4.2 Module features
4.2.1 Functions
The electronic module E AI SHT2 contains two shunts for scaling an input current II0 (con-
nection I0). The two current outputs IO0 (connection O0+) and IO1 (connection O1+) are eval-
uated by analogue current inputs.
Scaling is applied during evaluation via an analogue input module with an input resistance
of 115Ohm, (e.g. PSSuEFAI I)
}Scaling factor with resistance R1+R2 = 10,150 Ohm (connections O0+/O0-):
IO0 : II0 = 1:10
}Scaling factor with resistance R2 = 6,750 Ohm (connections O1+/O1-):
IO1 : II0 = 1:20
The maximum output variable error at 25 °C is:
}When two analogue input modules are connected (e.g. PSSuEFAII) 1,0 %
}When one analogue input module is connected (e.g. PSSuEFAII) 3,6 %

Function Description
Operating Manual PSSu E AI SHT2
1003113-EN-02 12
Example:
}Input current II0 = 200mA
}Output current IO0 at R1 + R2 = 20mA
}Output current IO1 at R2 = 10mA
I0 O0+
O1+
0V
O0-
O1-
IO1
IO0
II0
R1
R2

Installation
Operating Manual PSSu E AI SHT2
1003113-EN-02 13
5 Installation
5.1 General installation guidelines
Please also refer 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
Base modules with four connection levels:
12,6 mm
76 mm
52,1 mm8,1 mm
67,7 mm
12,6 mm
56,1 mm 71,8 mm 0,8 mm
128,9 mm
72,6 mm
(2.051")(0.319")
(0.496") (2.858")
(0.496")
(2.99")
(2.209") (2.827") (0.031")
(5.075")
(2.665")

Installation
Operating Manual PSSu E AI SHT2
1003113-EN-02 14
Base modules with six connection levels:
12,6 mm
76 mm
52,1 mm8,1 mm
67,7 mm
82,0 mm 71,8 mm 0,8 mm
72,6 mm
(2.051")(0.319")
(2.858")
(0.496")
(2.99")
(3.228") (2.827") (0.031")
(2.665")
12,6 mm
(0.496")
154,6 mm (6.087")
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].

Installation
Operating Manual PSSu E AI SHT2
1003113-EN-02 15
Schematic representation:
[2]
[1]
[3]
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
Operating Manual PSSu E AI SHT2
1003113-EN-02 16
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
Operating Manual PSSu E AI SHT2
1003113-EN-02 17
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!

Wiring
Operating Manual PSSu E AI SHT2
1003113-EN-02 18
6 Wiring
6.1 General wiring guidelines
Please note:
}The supply voltages for actuators and sensors must be extra low voltages with protect-
ive electrical separation (PELV or SELV) in accordance with VDE0100, Part 410. Fail-
ure to do so could result in electric shock.
}We recommend that you use shielded signal lines.
}On base modules with C-rail:
– Connect the shield to the terminals on the C-rail.
– Connect the C-rail with low impedance to the functional earth.
}On base modules without C-rail:
– Connect the shield as shown in the terminal configuration section.
The module connects the shield to the mounting rail.
– Connect the mounting rail to the functional earth via an earthing terminal.
}In environments with strong EMC interference, base modules without a C-rail provide
better protection if the shield is connected.
}Use copper wiring.
}The terminal configuration as stated on the front plate applies for base modules with C-
rail. The terminal configuration as stated in the technical documentation applies for all
other base modules.
6.1.1 Mechanical connection of the base modules
Procedure:
}Use a flat blade screwdriver (DIN 5264-A)!
DIN 5264-A
}Strip the wire back 8 mm.
}If necessary, label the connection level with a colour marker [3].
}Base module with screw terminals:
– Use a screwdriver to loosen the screw on the screw terminal [1]
– Insert the stripped cable into the round fixing hole [2], as far as it will go.
– Tighten up the screw on the screw terminal.
– Check that the cable is firmly seated.

Wiring
Operating Manual PSSu E AI SHT2
1003113-EN-02 19
}Base module with cage clamp terminals:
– Insert the screwdriver [4] into the square hole [1].
– Insert the stripped cable into the round fixing hole [2], as far as it will go [5].
– Pull out the screwdriver [6].
– Check that the cable is firmly seated.
2111
[1]
[3]
[2]
[4]
[5]
[6]
Please note:
}The minimum cable cross section for field connection terminals on the base modules is
0.14mm2 (AWG26).
}The maximum cable cross section for field connection terminals is:
– Digital inputs: 1.5mm2 (AWG16)
– Digital outputs: 2.0 mm2 (AWG14)
– Inputs/outputs on the counter modules: 1.5mm2 (AWG16)
– Analogue inputs/outputs: 1.5mm2 (AWG16)
– Communication cables: 1.5mm2 (AWG16)
– Test pulse outputs: 1.5mm2 (AWG16)
– Power supply: 2.5 mm2 (AWG12)
– Functional earth: 2.5 mm2 (AWG12)

Wiring
Operating Manual PSSu E AI SHT2
1003113-EN-02 20
}On base modules with screw terminals:
– If you use a multi-strand cable to connect the I/Os, it is recommended that you use
ferrules conforming to Parts 1 and 2 of DIN 46228, 0.14 ... 1.5mm2, Form A or C,
although this is not essential. To crimp the ferrules you can use crimp pliers (crimp
form A or C) conforming to EN 60947-1, such as the PZ 1.5 or PZ 6.5 from
Weidmüller, for example.
– Maximum torque setting: 0.8Nm
}Use copper wiring.
6.2 Terminal configuration
Base module Terminal configuration
Screw terminals:
PSSu BP 1/8 S
PSSu BP 1/8 S-T
Cage clamp terminals:
PSSu BP 1/8 C
PSSu BP 1/8 C-T
Without C-rail:
11: Output O0+
21: Output O1+
12: Output O0-
22: Output O1-
13-23: Shield connection
(13-23 linked within the base
module)
14: Input I0
24: 0 V analogue
2111
2212
2313
2414