MegaPoints servo controller Revision 24 April 2016
www.loolee.org Page: 13
To configure an external regulator do the following:
Disconnect the power cables from the screw terminals. Do not reconnect!
Connect 12 volt stabilised power supply to the input cables of the switching regulator.
Connect the servo plug to one of the middle servo connectors (suggest S6 or S7) to even
power distribution (ensure the RED socket goes into the middle connector and the BLACK
socket goes to the right connector (when viewed from above).
Use as normal.
NOTE: When using the external voltage regulator for higher power it can consume up to 4 amps at 12
volts. You may also need to increase the power supply to cope with the higher current requirements.
NOTE: If you are using all 12 servo outputs with an external voltage regulator you must use a “Y
lead” so the voltage regulator and servo can connect to the same MegaPoints Controller connector.
Driving relays
The MegaPoints Servo Controller can optionally drive relays under the following conditions:
Only MegaPoints Relay boards are supported.
An external high current voltage regulator must be fitted.
The board must be hardware version 1.5i or later.
Programming modes 5 and 6 support relay types. Mode 5 is for normal relay use and will turn a relay
on or off as commanded by the MegaPoints Controller. Mode 6 will generate a single shot pulse of
between ¼ to ½ second duration every time the input changes.
Warning: Do not attempt to connect a relay directly to the output of a MegaPoints Servo Controller.
You WILL damage the unit and this is not covered by our warranty. Only connect MegaPoints
Controllers Relay Boards as these are isolated and current limited.
Connecting a relay board
Before connecting a relay board ensure you have installed the external high power voltage regulator
as detailed on page 12.
See the separate MegaPoints Servo Controller Relay Guide documentation for wiring details,
available from the web site (www.loolee.org).
Normal relay use
Mode 5 can be used to isolate track power, switch electro frogs or switch just about any electrical
application on your layout.
Pulsed relay (Dapol) use
Mode 6 can operate a Dapol semaphore signal. NOTE: It is recommended to fit a bypass pushbutton
if using Dapol semaphore signals in this mode to resynchronise the output following power on if
required. This is because it is not possible to move a Dapol semaphore signal to a specific position
(i.e. danger or clear) it is only possible to toggle the output.
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