Ex D & Ex De - Dc Input, 3 Stage Without Monitoring Wiring Details (Types 5 & 6) - Eaton DB3B Mode D'emploi

Ex d & Ex de – DC input, 3 stage without
monitoring wiring details (Types 5 & 6)
This type can be configured in a number of different ways
depending on requirements. Independent tone selection
for all 3 stages is via the 3 off 5-way DIP switches fitted
to the electronics assembly:
2-wire system (Single stage): Connect the positive
•
and negative supply wires to the terminals as detailed
in the wiring diagram.
2-wire system (Dual stage, reverse polarity): Connect
•
the positive and negative supply wires to the terminals
as detailed in the wiring diagram. The second stage
is produced by reversing the polarity of the supply to
the unit.
3-wire system (Dual stage, common +ve): Connect 3
•
supply wires to the terminals as detailed in the wiring
diagram (1 common +ve wire and 2 -ve wires). Stage 1
is produced when power is applied across the common
+ve and stage 1 -ve terminals. Stage 2 is produced
when power is applied across the common +ve and
stage 2 -ve terminals.
3-wire system (Dual stage, common -ve): Connect
•
3 supply wires to the terminals as detailed in the wiring
diagram (2 +ve wires and 1 common -ve wire). Stage
Ex d & Ex de – DC Input, 3 stage without monitoring wiring details (Types 5 & 6)
DB3B DC SINGLE STAGE
CONFIGURATION
STAGE 1 +VE IN
STAGE 1 -VE IN
NOT USED
NOT USED
STAGE 1 +VE OUT
STAGE 1 -VE OUT
NOT USED
NOT USED
DB3B DC DUAL STAGE
COMMON POSITIVE
CONFIGURATION
Ex d
COMMON +VE IN 1
STAGE 1 -VE IN 2
3
NOT USED
STAGE 2 -VE IN 4
COMMON +VE OUT 5
6
STAGE 1 -VE OUT
NOT USED 7
STAGE 2 -VE OUT 8
Ex d Ex de
1 1
2 2
3 3
4 4
5 1
6 2
7 3
8 4
DB3B DC DUAL STAGE
COMMON NEGATIVE
CONFIGURATION
Ex de
1 STAGE 1 +VE IN
2 COMMON -VE IN
3
NOT USED
4 STAGE 2 +VE IN
1 STAGE 1+VE OUT
2
COMMON -VE OUT
3 NOT USED
4 STAGE 2 +VE OUT
1 is produced when power is applied across the stage
1 +ve and common -ve terminals. Stage 2 is produced
when power is applied across the stage 2 +ve and
stage common -ve terminals.
4-wire system (Triple stage, Common -ve): Connect
•
4 supply wires to the terminals as detailed in the wiring
diagram (3 +ve wires and 1 common -ve wire). Stage
1 is produced when power is applied across the stage
1 +ve and common -ve terminals. Stage 2 is produced
when power is applied across the stage 2 +ve and
common -ve terminals. Stage 3 is produced when
power is applied across the stage 3 +ve and common
-ve terminals.
All versions are supplied with terminals to allow loop-in
loop-out connection of the supply wires.
If an EOL resistor is specified on a DC unit, it will
N ote:
be fitted as standard across terminals 5 & 6 in the
Ex d chamber (see below). Re-position EOL as
required for other configurations.
When positioning the EOL, ensure there is a minimum of
14mm free space between the resistor body and terminal
block and ensure the resistor is not in contact with the
PCB or housing.
DB3B DC DUAL STAGE
REVERSE POLARITY CONFIGURATION
STAGE 1 +VE IN/STAGE 2 -VE IN
STAGE 1 -VE IN/STAGE 2 +VE IN
NOT USED
NOT USED
STAGE 1 +VE OUT/STAGE 2 -VE OUT
STAGE 1 -VE OUT/STAGE 2 +VE OUT
NOT USED
NOT USED
DB3B DC TRIPLE STAGE
COMMON NEGATIVE
CONFIGURATION
Ex d Ex de
1 1
STAGE 2 +VE IN
2 2 STAGE 3 +VE IN
3 3
STAGE 1 +VE IN
4 4
COMMON -VE IN
5 1 STAGE 2 +VE OUT
6 2
STAGE 3 +VE OUT
7 3
STAGE 1 +VE OUT
8 4
COMMON -VE OUT
Sounder - dB3B TM264 July 2020 www.eaton.com
Sounder - DB3B
English
Ex d Ex de
1 1
2 2
3 3
4
4
5 1
6 2
7 3
8 4
Ex d Ex de
1 1
2 2
3 3
4 4
5
1
6 2
7 3
8 4
3