E2S D2xC2 Series, Инструкция по эксплуатации

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European Safety Systems Ltd. Impress House, Mansell Road, Acton, London W3 7QH www.e2s.com Tel: +44 (0)208 743 8880
Document No. D211-00-601-IS Issue 1 20-08-22 Sheet 5 of 8
- +
DC Sounder Terminals
1
0
-1
5m
m
4 - 7mm
1
0
-1
5m
m
5 - 10mm
S2
S3
+
-
E
24VDC Strobe Terminals 48VDC Strobe Terminals
Fig. 5 DC Terminals
11) Earthing
The unit has both internal and external earth terminals,
(please see fig 3).
Internal earthing connections should be made to the internal
earth terminal on the PCBA, (please see fig 4 for AC, fig 5 for
DC). The earth conductor should be at least equal in size and
rating to the incoming power conductors. The internal earth
bonding wire connects the PCBA earth terminal to the internal
earth terminal in the enclosure back box.
External earth connections should be made to the M5 earth
stud, using a ring crimp terminal to secure the earth conductor
to the earth stud. The external earth conductor should be at
least 4mm
2
in size. The external earth crimp ring should be
located between the two M5 plain washers provided and
securely locked down with the M5 spring washer and M5 nut.
12) End Of Line Monitoring (DC Units Only)
On D2xC2 DC units, dc reverse line monitoring can be used if
required. All DC units have a blocking diode fitted in their
supply input lines. An end of line monitoring resistor can be
connected across the +ve and –ve terminals. If an end of line
resistor is used it must have the following values:-
Min. Resistance Min. Power
24V DC
3.9KΩ 0.5W
1KΩ 2W
48V DC
15KΩ 0.5W
3.9KΩ 2W
The resistor must be connected directly across the +ve and
-ve terminals as shown in the following drawing. Form the
resistor legs as shown in Fig. 7, remove the +ve and –ve
terminal plugs and fit the resistor across the two terminal
plugs before refitting them to the PCBA as shown in Fig. 8a or
8b. A spacing of at least 1/16” (1.58mm) must be provided
through air and over surfaces between uninsulated live parts.
Sounder EOL Resistor Beacon EOL Resistor
Fig. 7 End of Line Resistor Forming
Fig. 8a 48VDC Beacon End of Line Resistor Placement
Fig. 8b 24VDC Beacon End of Line Resistor Placement
Fig. 9 Sounder End Of Line Resistor Placement
13) Settings
13.1 Volume Control
The alarm horn output level of the DxC2 unit can be set by
adjusting the volume control potentiometer (see Fig 10). For
maximum output, set the potentiometer fully clockwise.
End of Line Resistor
- - + + E E
- - + + E E
EOL
Resistor