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Programmable control systems PSS®
PSS 3032
Installation Manual – Item No. 19 891
All rights to this manual are reserved by the publishers. Copies may be made for internal
purposes.
In the interests of continual technical advancement we reserve the right to amend
specifications without prior notice. No responsibility accepted for errors or omissions.
The names of products, goods and technologies used in this manual are trademarks of
the companies concerned.
Version VI, 03/2001
1Installation Manual: PSS 3032
Introduction 1-1
Definition of symbols 1-1
Safety Regulations 2-1
Supplying power to the PSS 2-1
Installation 2-3
Connections 2-4
Electromagnetic Compatibility (EMC) 3-1
Overview 3-1
Making the installation EMC-compatible 3-2
Connecting the earth cables 3-2
Cabling 3-3
Equipotential bonding 3-4
Screened cables 3-5
Suppression of inductive loads 3-5
Miscellaneous 3-5
Installing within an enclosure or wall-mounting 3-6
Testing the EMC-compatibility of an installation 3-7
Installation 4-1
Installing the PSS 3032 4-1
Installing the PSS 3032 in a control cabinet 4-2
Contents
Contents
2Installation Manual: PSS 3032
Connecting the Inputs and Outputs 5-1
Configuration of the screw terminals and connector
description 5-1
Notes on wiring 5-2
Digital inputs 5-4
Configuration 5-5
Example: Single-channel, failsafe input device, unchecked 5-6
Example: Dual-channel input devices, unchecked 5-8
Example: Single-channel, failsafe input device, with test pulse 5-10
Example: Dual-channel, failsafe input device, with test pulse 5-12
Single-pole 0.5 A outputs/test pulses 5-14
Configuration 5-15
Dual-pole 2 A outputs 5-16
Configuration 5-17
Interfaces 6-1
PG programming interface 6-1
RS 232 user interface 6-1
Appendix 7-1
Changes to the Installation Manual 7-1
Installation Manual: PSS 3032 1-1
This installation manual contains all the information you need to install a
PSS 3032 programmable safety system. It gives safety guidelines which
should be followed during installation and also describes the installation
procedure and measures which can be taken to ensure EMC compliance.
Examples are also given to show how the on-board inputs and outputs
should be connected.
Definition of symbols
Information in this manual which is of particular importance can be
identified as follows:
DANGER!
This warning must be heeded! It warns of a hazardous situation which
poses an immediate threat of serious injury and death, and indicates
preventive measures which can be taken.
WARNING!
This warning must be heeded! It warns of a hazardous situation which
could lead to serious injury and death, and indicates preventive
measures which can be taken.
CAUTION!
This refers to a hazard which can lead to a less serious or minor injury
plus material damage, and also provides information on preventive
measures which can be taken.
NOTICE
This describes a situation in which the unit(s) could be damaged and also
provides information on preventive measures which can be taken.
INFORMATION
This gives advice on applications and provides information on special
features, as well as highlighting areas within the text which are of
particular importance.
Introduction
Introduction
1-2 Installation Manual: PSS 3032
Notes
Installation Manual: PSS 3032 2-1
To ensure that the PSS 3032 programmable safety system functions
correctly, please follow the safety guidelines given below:
•Electrical connections should be made by a qualified electrical engineer
who is familiar with the information in this manual as well as the relevant
regulations concerning health and safety at work.
• Ensure VDE and local regulations are met, especially those relating to
safety. The relevant safety regulations for the respective application
must also be met.
• CAUTION!
Electrostatic discharge can damage components on the PSS 3032.
Ensure against discharge before touching the terminal strips, e.g. by
touching an earthed, conductive surface or by wearing an earthed
armband.
•Ensure all the requirements of the relevant trade associations or TÜV are
met.
•Ensure the wiring instructions in Chapter 5 are followed.
•If the system is altered in any way, such as exchanging a component or
carrying out soldering work, the guarantee, and any approval, will be
rendered invalid.
•The date of manufacture can be found on the test label.
Supplying power to the PSS
•The safety system requires a 24 VDC supply.
Check that the voltage supplied from the external power supply
corresponds.
•The tolerance on the supply voltage for the system's power supply is
+10 % or -15 % maximum. Safe operation cannot be guaranteed outside
this range.
•Overvoltage and spikes of interference can damage the PSS power
supply. If this occurs the unit will switch to a safe condition. Please refer
to the relevant EMC-measures described in Chapter 3.
•To achieve the lowest possible residual ripple (< ± 1.2 V), we
recommend that you install a three-phase bridge rectifier or regulated
supply.
Safety Regulations
Safety Regulations
2-2 Installation Manual: PSS 3032
•The external power supply must be capable of supplying a current which
is calculated as follows:
Sum of all the inputs multiplied by 10 mA
+Total current from the maximum number of outputs that can be driven
simultaneously
+0.5 A quiescent current
This must amount to 10 A maximum.
•The fuse between the external and the PSS power supply protects the
external power supply. The size of the fuse will depend on the cable
cross section and on local regulations.
•WARNING!
Safe electrical isolation must be ensured for the external 24 V supply.
Failure to do so could result in electric shock. Power supplies must
conform to DIN VDE 0551 / EN 60 742 and DIN VDE 0160.
•
Connect the external 24 V supply
to the PSS power supply and the 0 V
terminal to the inputs, as shown in the diagram below. (It is only
necessary to connect one of the two 0 V terminals to the inputs.) The
external supply should be earthed in accordance with local regulations.
There must be no direct connection between “N” and the 0 V output on
the external power supply.
The 0 V connections on all the 24 V power supplies should be connected
and the 0 V mains earthed at a single point. The connection of the 0 V
supply to the central earth bar or earth fault monitor must be in
accordance with the relevant national regulations (such as EN 60 204,
VDE 0113, NFPA 79-1991:17-7, NEC: Article 250, for example).
Installation Manual: PSS 3032 2-3
~
=
PSS 3032
L1
N
+24 V
0 V
External power supply
24 V
0 V
Functional
earth
Connect in star to the central
earth point
0 V
Connect to the 0 V mains
and earth at a single point
Supply terminal
on the inputs
Supply terminals on the
power supply
Installation
• The system should be installed in an enclosure (e.g. control cabinet)
which conforms to the protection class required.
• When installing the unit in an enclosure such as a control cabinet, the
technical specifications below must be taken into account:
Protection type (EN 60 529, 10/91) IP 20
Protection class (DIN VDE 0106,
Part 1/A1, 04/90) 1
Mounting position Vertical
Ambient temperature (DIN IEC 68-2-14, 06/87) 0 ... 60 °C
Storage temperature (EN 60 068-2-1/-2, 03/93) -25 ... +70 °C
Relative humidity
(DIN IEC 68-2-30, 09/86) Max. 95 % r.h.
Condensation Not permitted
Vibration (EN 60 068-2-6, 04/95) Frequency range:
10 ... 100 Hz
Amplitude:
0.1 mm, max. 5g
Shock (DIN IEC 68-2-29) 30g, 11 ms/10g, 16 ms
EMC EN 50 082-2, 03/95
EN 55 011 A, 08/96
Fig. 2-1: Supplying the system
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