ASB4 manual │ version 1
- 2022
Page:
4 from 14
The operation of ASB4
The functionality of ASB4
The ASB4 works on the basis of a PIC interface provided with a code that allows it to function. In order
for the board to work properly, the supply voltage on the board is reduced to 5VDC with which the PIC
can control the servos and the relay.
Each servo is controlled with a switch. The most commonly used is the rocker switch, but any switch that
maintains its position is suitable for this purpose. The centre position of a servo is linked to a relay in the
internal code. As soon as the servo reaches its centre position it switches the relay on or off depending
on the position taken.
To determine the servo positions and speed, there are three push buttons: Plus, Enter and Min. With
these three buttons the internal code can be set.
As mentioned, the ASB4 can control four servos, unlike its predecessor, simultaneously.
Possibilities of control
The relay allows a number of functions to be performed by means of two changeover contacts per relay.
Some of the most common ones:
-
Point polarisation of a switch
-
LED status signalling on control panel
-
Activation of an ABC module at the position of the switch
-
Switching a signal position to the position of the turnout
-
Switching of blocks according to the position of the switch
This is just a few of the many possibilities. If you have applied a new possibility, please let me know. I can
collect them and incorporate them into this manual.
