Stahl YL5IS Series, Operating Instructions Manual, Page: 12 / 19

Mounting and installation
12
252163 / YL560300010
2016-04-20·BA00·III·en·00
Intrinsically Safe Combination Signal -
105 dB (A) / LED Beacon
Series YL5IS
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Independent wiring
• A dual-channel safety barrier or double intrinsically safe connection is required
Loop in/loop out wiring combination device
• A single-channel safety barrier or single intrinsically safe connection is required
• Wires C and D not included in delivery
Two stage alarm
Tone selection of the sound stages
DANGER
Explosion hazard due to selecting the wrong cables!
Non-compliance results in severe or fatal injuries.
• If using separate safety barriers for the sounder and beacon, observe
the cable specifications stated on the selected Zener barrier or on the
isolator certificate.
18056E00
A +v Beacon
B 0v Beacon
C +v Sounder
D +0 Sounder
18057E00
A +v
B 0v
C +v
D 0v
The device has a first and second sound stage.
First sound stage
• Users can select a tone frequency from 32 different variations using the
DIL switch (see diagrams above). Each tone is described in the tone
table.
Second sound stage
• Each first sound stage has a pre-programmed second stage which is
listed in the tone table.
• Users are able to switch between the first and second sound stages by
wiring the unit in one of two ways.
+
-
+
-
5 6
C
D
+
-
+ -
5 6
C
D