Datei/ file name:085501929k de-en-fr-it.docx
page 22 / 66
Drwg-no.: 30007-008-12k
In the case of sounders with external tone selection, the combinations of the tones for the stages 1 to 4 can be altered
and thus adapted to the particular application. The tone of stage 1 will continue to be activated with selector switches
1 - 5. Stages 2, 3 and 4 are programmable.
Programming
The programming of stages 2, 3 and 4 can be described as follows:
- De-energise sounders
- Change to programming mode by selector switch position 7 to ON
- Selection of the selected (basic) tone by appropriate selector switch settings 1 - 5.
(see sound selection table, basic tone stage)
- Brief application of service voltage and control voltage to the appropriate input terminals for stages 2, 3 or 4 (see
also connection examples, section
The basic tone set is taken over by the stage activated.
WARNING: When the service voltage is switched on do not touch any live parts of the sounder.
- Repeat for all stages (2 - 4) which are to be activated.
- De-energise sounders
- Switch off programming mode by means of selector switch setting 7 to OFF.
The tone for stage 1 is set, after the programming mode has been left, with the help of selector switches 1 to 5.
Selection of the individual tone combination, by setting the selector switch 6 to ON (see Tone Selection Table, Tone
Selection 32)
4. Safety Manual
4.1. Standard foundation
•
IEC61508
Functional safety of electrical/ electronic/ programmable electronic
safety-related systems
•
IEC61511
Functional safety
– safety instrumented systems for the
process industry sector
•
EN ISO 13849-1 (following)
Safety-related parts of control systems
With the identification of the device with the CE sign, Pfannenberg GmbH confirms the fulfilment of the legal require-
ments of the applicable EC guidelines.
The DS ..-SIL sounder fulfils the requirements of the functional safety according to
IEC 61508/IEC 61511.
4.2. Features
The sounder described alone does not perform any protective function (partial system) but is concepted for installation
as an output device with diagnosis (output) in the loop of a protective function (SIF). The system (see
) only ever shows a partial system of a technical safety system (SIS). It should be observed through the system inte-
grator that the entire 'loop', according to the use, has to meet the required safety integration level (SIL). The system
integrator must establish all measures in order to reach or maintain the safe condition in the SIS in the case of a fault.
The diagnosis system of the device diagnoses the acoustic warning signals of the failed release and function upon
request and reports this via an alarm relay to a superior control system.
This does not constitute an online diagnosis within the meaning of IEC61508 and, without further measures, has no
influence on the intermediary values PFH, PFD, SFF and HFT. The diagnosis can only be used for the following
uses/architectures:
•
Systems with small requirement rate of the safety function (low demand) which are regularly subject to a test
release. If the regular test is automated, then it can be evaluated so that the diagnosis coverage flows into
the calculation of the reliability data.
•
Systems in which the safety function can be tested immediately before the existence of the dangerous condi-
tion, such as starting alarms of machines, for example.
4.3. Qualification
Handling according to this operating manual and safety manual can only be carried out by trained electrical technical
personnel authorised by the plant operator.
The integration of this sounder in an application is to be carried out according to the rules of the functional safety ac-
cording to IEC 61508/IEC 61511.
Proof tests and their proof can only be carried out by authorised electrical technical personnel.
