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ASB4 manual │ version 1 

- 2022

 

Page: 

10 from 14

 

 

 

 
 
 
 

 

Adjustment

 

 

Setting the servos

 

The tuning of the servos on the ASB4 has been greatly improved over its predecessor, the ASB. You can 
now select the servo you want to program, you can skip steps if necessary and you can see which step 
you are working on by means of the LEDs.

 

 

The LEDs have multiple functions:

 

 

LED Power: Supply voltage is OK LED Program: 
ASB is in programming mode

 

 

Now the Led's X1 to X4 have several functions. During active 
operation, i.e. not in program mode, they indicate the status of 
the relay. If the LED lights up, this means that the corresponding 
relay is also active. This way you can check the state of the circuit 
during operation.

 

 

In all cases: X1: 
Servo 1

 

X2: Servo 2

 

X3: Servo 3

 

X4: Servo 4

 

 

To program, press the centre button marked "enter" for 3 seconds. To end the 
programming function, ensure that the LEDs X1 to X4 are extinguished to get to the 
"End" position and press the "enter" button again for 3 seconds. The red LED will then 
extinguish and the ASB is set to active mode.

 

 

If you are in the programming mode, the red LED is on, you can use the "plus" and "minus" buttons to 
choose between LED X1, X2, X3 or X4. You can select to edit Servo 1, 2, 3 or 4 respectively. As soon as 
you go in the right direction past X4, or in the left direction past X1 you will notice that all X leds are 
extinguished. This is the "End" position, with which you can leave the programming menu.

 

 

So there are 5 modes to choose from:

 

X1  on:  Servo  1 
X2  on:  Servo  2 
X3  on:  Servo  3 
X4 on: Servo 4

 

X1 to X4 off: Quitting programming mode

 

 

If you wish to proceed to the next step, use the "Enter" key. To ensure that you do not confirm an action 
unintentionally, we have built in a delay of at least 1.5 seconds for the enter button to be pressed. Each 
subsequent step is visually confirmed by the brief extinction of the red and orange LEDs.

 

Summary of Contents for ASB4

Page 1: ...DT S M an ua l Domburg Train Support Your partner in model railway technology DTS Manual ASB4 Analogue Servo Controller Version 1 2022 ...

Page 2: ......

Page 3: ...ies 4 Mounting 5 Servo bracket 5 Servo 6 Feather steel wire 6 Connect 7 Supply voltage 8 Servos 8 Rocker switches 8 Relay 9 Adjustment 10 Setting the servos 10 Resetting the ASB4 11 Frequently Asked Questions 12 The heat sink of the PCB is getting hot is that bad 12 When I switch on the power supply the servos go into overdrive 12 Afterword 12 ...

Page 4: ... more economical reliable and beautiful than the click clack magnets However for servo control you usually need a hardware device with software to control the servos There are some solutions for this via a handful of suppliers of small PCBs However these solutions lack the possibility to switch a relay with a servo These relays have two switch contacts which makes it possible to polarize hearts an...

Page 5: ... 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 So...

Page 6: ...r the assembly you can also use the PCB assembly set that you can find in the webshop Servo bracket The MDF Servo Brackets consist of 3 separate parts A foot plate stand and partition You should glue the 3 parts together preferably with wood glue Hobby glue and hot glue are also good Pay attention to the partition it only fits one way really well Then the sides are equal The bracket can be Mount o...

Page 7: ... to be moved You do this as directly as possible Every form of bending Z cutting and V cuts are not necessary and actually counteract the movements The most common way of mounting is directly under the switch tongue which makes the distance and movement of the servo as short as possible The different holes in the arm can be used to play with the stroke of the servo If the stroke is too short or to...

Page 8: ...ASB4 manual version 1 2022 Page 7 from 14 Connect Figure 1 ...

Page 9: ...se to 60 70 degrees Celsius Be careful because it can lead to burns when touched On the two pole terminal of the ASB4 you can provide the direct voltage as shown in Figure 1 The polarity is not important here due to the rectifier If you have connected the polarity correctly the green POWER LED lights up Servos Connect the servos to the four three pole headers as shown in Figure 1 It is important t...

Page 10: ...elay If you want to polarize a switch Solder a wire to the centre piece of the turnout and connect it to terminal COM Solder a wire to the rail which is straight this feeds the centre when bent Connect this to terminal NO Solder a wire to the rail which is bent this wire feeds the centre when straight Connect this to terminal NC Measure with the multimeter after switching the servo whether the cor...

Page 11: ... programming function ensure that the LEDs X1 to X4 are extinguished to get to the End position and press the enter button again for 3 seconds The red LED will then extinguish and the ASB is set to active mode If you are in the programming mode the red LED is on you can use the plus and minus buttons to choose between LED X1 X2 X3 or X4 You can select to edit Servo 1 2 3 or 4 respectively As soon ...

Page 12: ...n slower or faster movement of the servo Make sure that the position centre X3 is always between position A and B A position beyond position A and B will result in the servo not working properly The centre position of the servo is very important for the ASB4 because the left and right deflection is measured with the centre position If this position is not programmed between the two strokes the ser...

Page 13: ...servos twitch This is correct and is caused by the servos themselves This can do no harm Afterword I have written this manual for general use You do not have to pay for this manual and it can be downloaded from our website free of charge If you want to copy the text for your own or club use please contact us I hope this manual will help you connect the ASB4 If you have any comments please let me k...

Page 14: ...ASB4 manual version 1 2022 Page 13 from 14 ...

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