GAUGEMASTER DCC32, Руководство пользователя, Страница: 2 / 8

2
Solenoid 1 Solenoid 2
Solenoid 3 Solenoid 4
Power
Input
Learn
button
2 Mounting holes
(4mm maximum
screw diameter)
Areas to write
the main Point
DCC addresses
Switch input
(pages 6/7)
LED1 LED2
LED3 LED4
•
Connecting to power
Firstly, before installing or connecting any wiring SWITCH OFF ALL POWER!
The DCC32 has two screw terminals for the power input and three connections to each point motor
- a common terminal marked COM which should go to one wire of each coil and another 2
terminals marked A & B to each of the other coil connections.
The DCC32 is usually mounted underneath the baseboard close to the point motors to keep wiring
as short as possible. There are two mounting holes through the special rivet which also retains the
cover; make sure you do not use screws with a diameter larger than 4mm to hold it in position and
do not mount or stand the DCC32 on any metallic or conductive surfaces.
Connecting the DCC32 to the power source
The DCC32 is usually powered and controlled by DCC, although it can alternatively be powered by
12-16 volts DC if only used for control by switches as shown later in these instructions.
The DCC32 can be connected to the nearest DCC rails, bus bar or directly to your controller power
output terminals. Use reasonably thick wire for the connections although the built in CDU will help
store and boost the power to feed the point motors themselves. Before connecting or
disconnecting wires always turn off the power and allow a minute for the CDU capacitors to
discharge and the LEDs to extinguish.
Point Motor cabling
Solenoid Point motors consist of two electromagnets which move a steel bar to actuate a point.
They take a relatively large amount of current (2-3 amps typically) and so to reduce power loss
(which can make point operation unreliable) you should always keep the wires between the point
motor and the DCC32 as short and as thick as possible. Bearing this in mind try to locate the
DCC32 as close to the points you are controlling as possible so that wires are kept short. Some
point motors are supplied with cables prefitted and these are usually quite short and relatively thin -
if you need to extend these cables use thicker wire (eg 16/0.2) and keep them as short as possible.
Two-wire Point motors
Some types of solenoid type motors only have two terminals or wires (eg Kato) and these work by
reversing the polarity to activate either coil. These cannot be connected directly to a standard
decoder, although there are third party adapters available which may make them compatible.