WT.050.130.000.UA.IM.1108
ACUTEC
™
35 SYSTEM
8
2.3
Mounting Power Supply and Receiver Modules (See Dwg. 50.130.000.001)
Power Supply and Receiver Modules are mounted to a standard 35 x 7.5
mm DIN rail in the detection system enclosure. The spring loaded clip
with the loop holds the module to the rail. To install modules, first slide
the bottom of the module under the rail. Then pull the loop out with a
small screwdriver while lowering the top of the module onto the rail. To
remove modules, reverse this procedure.
2.4
Electrical Connections (See Dwgs. 50.130.130.001 And 50.130.130.002)
Field wiring required for the Detection System includes connection of
ac power, connection of two-conductor cable between the Receiver and
the Sensor/Transmitter, connection of the Battery Back-up unit (when
purchased), and connection of the audible horn to Receiver Modules. A
25-foot length of two-conductor cable is supplied for each Sensor/Trans-
mitter. Longer lengths of up to 1000 feet may be used when required.
The ac input power is connected to the lower left of the Power Module,
as shown in the Installation Wiring drawings. A ground terminal is pro-
vided on the mounting track for connection of earth ground. For safe
operation and to avoid noise interference, it is important that earth
ground be connected to this terminal first, and then to the power input
earth ground terminal on the Power Supply Module, as shown.
WARNING: TO AVOID POSSIBLE SEVERE PERSONAL INJURY OR DAM-
AGE TO EQUIPMENT, THIS PRODUCT SHOULD ONLY BE USED WITH
POWER SUPPLIES THAT HAVE A SINGLE HOT WIRE WITH RESPECT TO
EARTH. THE WIRE CONNECTED TO POWER SUPPLY TERMINAL “N”
MUST BE NEUTRAL. POWER AND EARTH GROUND MUST BE PROPERLY
CONNECTED AS SHOWN.
NOTE: Field wiring must conform to local electrical codes.
The wiring drawings show internal wiring of the systems. Sensor/Trans-
mitter connections are shown in paragraph 3.4.1, Sensor Installation.
All terminal blocks are plug-in type, and can be unplugged allowing re-
placement of modules without removing individual wires.
Electrical connection is made between the Battery Back-up unit and
the Power Supply Module. The circuit board mounted on the battery
contains a two-position plug-in terminal block marked plus and minus.
The plus terminal is connected to terminal B+ of the power supply and
the minus terminal is connected to B- of the power supply.
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