Pilz PSS u2 ES 6DI 120V AC User manual

PSS u2 ES 6DI 120V AC
Operating Manual-1005014-EN-01
}Control system PSS u2
}Remote I/O system PSS u2

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
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1 Introduction ............................................................................................................................ 4
1.1 Validity of documentation.......................................................................................................... 4
1.2 Using the documentation .......................................................................................................... 4
1.3 Definition of symbols................................................................................................................. 4
2 Overview ................................................................................................................................. 6
2.1 Module features ........................................................................................................................ 6
3 Safety ...................................................................................................................................... 7
3.1 Intended use ............................................................................................................................. 7
3.2 System requirements................................................................................................................ 7
3.3 Safety regulations ..................................................................................................................... 7
3.3.1 Use of qualified personnel ........................................................................................................ 7
3.3.2 Warranty and liability ................................................................................................................ 8
3.3.3 Disposal .................................................................................................................................... 8
4 Function description ............................................................................................................. 9
4.1 Block diagram ........................................................................................................................... 9
4.2 Supply....................................................................................................................................... 9
4.3 Inputs ........................................................................................................................................ 9
4.4 Reaction times .......................................................................................................................... 13
4.5 Energy-saving functions ........................................................................................................... 13
5 Structure of the process image ............................................................................................ 14
6 Installation .............................................................................................................................. 15
6.1 General installation guidelines.................................................................................................. 15
6.1.1 Dimensions ............................................................................................................................... 15
6.2 Install protective coding ............................................................................................................ 16
6.3 Inserting and removing an electronic module ........................................................................... 17
6.3.1 Inserting an electronic module.................................................................................................. 18
6.3.2 Removing an electronic module ............................................................................................... 20
6.4 Changing an electronic module during operation ..................................................................... 21
7 Wiring ...................................................................................................................................... 22
7.1 General wiring guidelines ......................................................................................................... 22
7.1.1 Connection mechanism for terminal blocks .............................................................................. 22
7.2 Terminal configuration .............................................................................................................. 23
8 Operation ................................................................................................................................ 24
8.1 Display elements and messages .............................................................................................. 24
9 Technical details .................................................................................................................... 26
10 Order reference ...................................................................................................................... 28
10.1 Product ..................................................................................................................................... 28
10.2 Accessories .............................................................................................................................. 28

Introduction
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1 Introduction
1.1 Validity of documentation
This operating manual explains the function and operation, describes the installation and
provides guidelines on how to connect the product.
This documentation is valid for the product PSS u2 ES 6DI 120V AC. It is valid until new
documentation is published.
1.2 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.
Please refer to the PSS u2 Installation Manual.
1.3 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
Module structure:
A module consists of
}An electronic module
}A terminal block with cage clamp terminals and
}A backplane
The electronic modules are plugged into the backplane and determine the function. The
backplane is used for communication between the head module and the electronic modules
and forms the carrier unit for the electronic modules. The terminal block is plugged into the
electronic modules and is used to connect the field wiring.
Details of the terminal blocks that can be used are available under "Intended Use".
2.1 Module features
Application of the product PSS u2 ES 6DI 120V AC:
Electronic module with digital inputs for standard applications
The product has the following features:
}6 type 1/3 digital inputs in accordance with IEC61131-2
}Configurable input filter time: 5 … 25.5 [ms]
}Configurable pulse stretching: 0 … 255 [ms]
}Energy-saving functions
}LEDs for:
– Status of inputs
– Module error
– Operating status

Safety
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3 Safety
3.1 Intended use
The module provides standard type 3 inputs in accordance with IEC61131-2 and may be
used for standard applications in the PSS u2 system.
Intended use includes making the electrical installation EMC-compliant. The module is de-
signed for use in an industrial environment. Interference may occur if used in other areas.
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 module PSS u2 ES 6DI 120V AC may be used in conjunction with the following ter-
minal block:
}8-pin terminal block
3.2 System requirements
INFORMATION
The module is supported by
}PASconfig from version 3.0
– We recommend that you always use the latest version (download
from www.pilz.com).
3.3 Safety regulations
3.3.1 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 prevention,
}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.

Safety
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3.3.2 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.).
3.3.3 Disposal
}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
I0
1
I2
5
I4
9
N
13
Module
Supply
Data
(ST)
Periphery
Supply
+24 V DC
Module Bus
I1
3
I3
7
I5
11
N
15
Input Input InputInput N
Fig.: Block diagram PSSu ES 6DI 120V AC
4.2 Supply
}The module is supplied with voltage via the head module.
4.3 Inputs
}The status of the inputs is signalled to the head module via the module bus.
}The inputs are fitted with a configurable software filter. The default value for the software
filter is 5 ms. This prevents toggling of the signal near the zero crossing.
}Pulse stretching can be configured for the inputs.
Software filter
}Any signals that are shorter than the signal suppression time tpulse_sup are filtered out. The
signal suppression time depends on the configured software filter time.
tpulse_sup= tfilter – 300 µs
}The module detects any signals that are present at the input for longer than the minimum
signal time tsignal_min.
tsignal_min= tfilter
}A signal is always detected and signalled to the head module's PII if it is present for
longer than the sum of the following times:
– Minimum signal time tsignal_min
– ST scan time

Function description
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Clamp
U
Module
tsignal_min
Signal level
1
0
1
0
1
0
High
High
Low Low
Fig.: Software filter
Legend
Clamp AC input signal at the terminal. To be able to detect the signal it must be
present for at least half a period T/2.
Signal level State of the rectified signal depending on the AC input signal.
tsignal_min Time for which a signal must be present at the input in order to be de-
tected. This time is determined by the filter time. The filter time prevents
toggling of the signal with zero crossing.
Default value of the filter time tfilter: 5ms
Module Filtered signal in the module
High Signal level for signal "1"
Low Signal level for signal "0"
Pulse stretching:
The module stretches the filtered 1 signal or 0 signal to the configured pulse stretch time
tstretch. If the signal is longer than the pulse stretch time, then it is not stretched any further.
Requirements for the filtered signals:
The 0-signal and the subsequent 1-signal together must be present at the input for longer
than twice the configured pulse stretch time tstretch.

Function description
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Initialise position
0-signal in the module 1-signal in the module
1-signal stretching
0-signal in the module
0-signal stretching
0-signal in the module
Waiting for 1-signal
1-signal in the module
Waiting for 0-signal
0-signal at the terminal
after pulse stretching has
elapsed
Pulse stretching active
0-signal at the terminal
1-signal at the terminal
1-signal at the terminal starts
pulse stretching
0-signal at the terminal
starts pulse stretching
1-signal at the terminal
after pulse stretching has
elapsed
1-signal at the terminal
after pulse stretching has
elapsed
0-signal at the terminal
after pulse stretching has
elapsed
Fig.: States for pulse stretching
stretch
tstretch
t
Module
Pulse
stretching
Stretched
signal
1-signal
t
stretch
t
FALSE
t
TRUE
t
0-signal
t
1-signal
t
Fig.: Timing diagram: pulse stretching > signal duration of 1-signal
Legend
Module Filtered signal in the module
Pulse stretching Pulse stretching
Stretched signal Stretched signal
t1-signal Duration of 1-signal
tstretch Duration of pulse stretching
tTRUE Stretched 1-signal in the module
tFALSE Stretched 0-signal in the module

Function description
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stretch
tstretch
t
TRUE
tFALSE
t
Module
Pulse
stretching
Stretched
signal
1-signal
t0-signal
t
Fig.: Timing diagram: pulse stretching ≤ signal duration of 1-signal
Legend
Module Filtered signal in the module
Pulse stretching Pulse stretching
Stretched signal Stretched signal
t1-signal Duration of 1-signal
tstretch Duration of pulse stretching
tTRUE Stretched 1-signal in the module
tFALSE Stretched 0-signal in the module
0-signal
t
stretch
tstretch
t
TRUE
t
Module
Pulse
stretching
Stretched
signal
1-signal
t
FALSE
t
Fig.: Timing diagram: pulse stretching with variable signal duration
Legend
Module Filtered signal in the module
Pulse stretching Pulse stretching
Stretched signal Stretched signal
t1-signal Duration of 1-signal
tstretch Duration of pulse stretching

Function description
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tTRUE Stretched 1-signal in the module
tFALSE Stretched 0-signal in the module
Grey shaded
area
Signals that are not detected during stretching
4.4 Reaction times
Detailed information on the reaction times is available in the operating manual of the head
modules.
4.5 Energy-saving functions
The energy-saving levels are controlled by the head module and are not configurable. The
module supports the following energy-saving levels:
}Switching off the LEDs
The LEDs have two energy-saving levels:
– Switching off the LEDs to display the terminal status
– Switching off the LEDs to display the module and terminal status
}Standby mode
– All module functions are inactive.
– The LEDs for displaying the module and terminal status are switched off.

Structure of the process image
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5 Structure of the process image
The module occupies 1 Byte in the process image.
Byte Bit Meaning State
0 Bit 0 Input data I0 0: "0" signal at the input
1: "1" signal at the input
Bit 1 Input data I1
Bit 2 Input data I2
Bit 3 Input data I3
Bit 4 Input data I4
Bit 5 Input data I5
Bit 6-7 None

Installation
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6 Installation
6.1 General installation guidelines
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.
6.1.1 Dimensions
The dimensions include the backplane, electronic module and terminal block.
12,5
50,1
54.4
88,37
6
51,1 60
111,1
(95.3)
51,7
Fig.: Dimensions in mm, including backplane, electronic module and terminal block

Installation
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6.2 Install protective coding
Use a terminal block with protective coding. Protective coding prevents the terminal block
from being plugged into another module.
1. Insert the protective
coding into the 8-pin ter-
minal block
2. The protective coding
must be visible on the
terminal side
3. Rotate the protective
coding until is embed-
ded within the terminal
block.

Installation
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4. Plug the coded ter-
minal block into the
module.
6.3 Inserting and removing an electronic module
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.
Before working with the terminal block, switch off all the voltages at the ter-
minal block.
Please note:
}Backplane must be installed first.
}Electronic modules may only be plugged or unplugged if the terminal block has been re-
moved first.
}The mechanics of the electronic modules are designed for 20 plug in/out cycles.

Installation
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6.3.1 Inserting an electronic module
1. Insert the electronic
module into the suspen-
sion lug on the back-
plane.
2. Swivel the electronic
module downwards until
you hear it click into
place.

Installation
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3. Insert the terminal
block into the suspen-
sion lug on the module.
4. Swivel the terminal
block upwards until you
hear it click into place.

Installation
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6.3.2 Removing an electronic module
1. Press the unlocking
mechanism on the ter-
minal block that is
shown by the arrow and
pull off the terminal
block upwards.
2. Press the unlocking
mechanism that is
shown by the arrow and
pull off the electronic
module upwards.