Eaton DB3P, Техническое руководство

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2
Sounder - dB3B
TM264 July 2020 www.eaton.com
Sounder - DB3B
English
On Ex de versions the removable cover is secured using
3 off M5 cover screws (4.0mm A/F hexagon key). Once
the cover fixings are unscrewed, the cover can be lifted
away from the enclosure to gain access to the interior.
The cover fixings are captive and will remain in the cover.
All terminal screws, used and unused, shall be tightened
down. Once termination is complete, carefully replace
the cover assembly back onto the body, avoiding damage
to the mating surfaces. Tighten the cover screws evenly.
On Ex - de certified versions, ensure the maximum torque
value for the cover screws is observed, as marked on
the Ex e cover. Ensure the O-ring is seated correctly on
the cover during re-assembly. On Ex d certified versions,
ensure the required maximum gap of 0.04mm is main-
tained between the cover and the base once assembled.
Wiring details
The unit is available in a number of basic configurations,
below. See section 9 for EN54-3 specific configurations.
1. Ex d - AC input, single stage.
2. Ex d - AC input, dual stage with voltage-free
stage selection.
3. Ex de - AC input, single stage.
4. Ex de - AC input, dual stage with voltage-free
stage selection.
5. Ex d - DC input, up to 3 user selectable stages
without monitoring.
6. Ex de - DC input, up to 3 user selectable stages
without monitoring.
7. Ex d - DC input, up to 2 user selectable stages with
EOL/monitoring (standard configuration).
8. Ex de - DC input, up to 2 user selectable stages with
EOL/monitoring (standard configuration).
9. Ex d - DC input, up to 3 user selectable stages with
optional EOL/monitoring (alternative configuration).
10. Ex de - DC input, up to 3 user selectable stages with
optional EOL/monitoring (alternative configuration).
11. Ex d - DC input, 5 user selectable stages with voltage
free stage selection with or without monitoring.
12. Ex de - DC input, 5 user selectable stages
with voltage free stage selection with or
without monitoring.
Ex d – AC input wiring details (Types 1 & 2)
•
Type 1: Connect the live and neutral supply wires to
the terminals as detailed in the wiring diagram. The unit
will be supplied with the link between R1 and R0 fitted
to the terminals. When power is applied to the unit,
the stage 1 tone will be produced as selected on the
5- way DIP switch.
•
Type 2: Connect the live and Neutral supply wires to
the terminals as detailed in the wiring diagram. The unit
will be supplied with no link fitted between R1 and R0.
Connect wires and remote switches to terminals R0,
R1 and R2 as shown. When power is initially applied
to the unit, no tone will be produced. When the switch
connected to R1 is closed, the stage 1 tone will be
produced as selected by the 5-way DIP switch on the
electronics assembly. When the switch connected to R2
is closed, the pre-selected tone for stage 2 is produced.
See tone table 2 for details of pre-selected tones.
ote: N Closing both switches will produce no tone.
CUSTOMER
WIRING
DB3B Ex d CHAMBER
R1
R2
R0
N
N
L
L
ELECTRONICS
ASSEMBLY
VOLTAGE-FREE
STAGE
ACTIVATION
TERMINALS
LIVE IN
LIVE OUT
NEUTRAL IN
NEUTRAL OUT
STAGE 1
STAGE 2
COMMON
Ex de – AC input wiring details (Types 3 & 4)
•
Type 3: Connect the live and neutral supply wires to
the terminals as detailed in the wiring diagram. When
power is applied to the unit, the stage 1 tone will be
produced as selected on the 5- way DIP switch inside
the Ex d chamber.
•
Type 4: Connect the live and Neutral supply wires
to the terminals as detailed in the wiring diagram.
When power is initially applied to the unit, no tone
will be produced. Connect wires and remote switches
to terminals R0, R1 and R2 as shown. When the
switch connected to R1 is closed, the stage 1 tone
will be produced as selected by the 5-way DIP
switch on the electronics assembly. When the switch
connected to R2 is closed, the pre-selected tone for
stage 2 is produced. See tone table 2 for details of
pre-selected tones.
ote: N Closing both switches will produce no tone.
DB3B Ex e CHAMBER
CUSTOMER
WIRING
1
2
3
4
1
2
3
4
LIVE IN
LIVE OUT
NEUTRAL IN
NEUTRAL OUT
STAGE 1 (R1)
STAGE 2 (R2)
COMMON (R0)
Ex de – AC input wiring diagram (Types 3 & 4)
Ex d – AC input wiring diagram (Types 1 & 2)