Datei/ file name:085501929f.docx
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Zeichnungsnr./ Drwg-no.: 30007-008-12f
1. Brief description of the system
The sounders of the DS..-SIL series are audible warnings for the signalling of dangerous situations in safety
relevant applications, e.g. as an intrinsic part of an E/E/PE system (according to EN61508).
Fig. 1 Overview
The sounders are for constructed for the robust requirements in industrial circumstances and can reach a
sound level of up to 110dB(A). The sounders suited to indoor and outdoor use create a warning signal in 30
different tones which can be selected with the help of an internal DIP switch. There is also the possibility of
(optionally) switching to three other tones with external control. Next to these factory settings, the combina-
tion of tones can be freely arranged by on-site programming. The function of the sounder is internally moni-
tored electrically and acoustically by a diagnosis channel. If an acoustic warning signal is made, then an
MOS relay is conductive. This information can be interpreted with a superior control.
Fig. 2 Illustration of the functionality of the switching parts of the sounder with monitoring
Operational voltage
(for signal devices
Acoustic
signal
Sounder channel
Monitoring channel
Alarm output
Monitoring
analysis
Operational voltage
(monitoring switching supply)
Sounder operational voltage
Optional external tone selection
Operational voltage monitoring
Sounder channel
Monitoring channel
Alarm output
MOS relay
