Digikeijs DR4024 User manual

© Copyright 2005 – 2021 Digikeijs, the Netherlands. All
rights reserved. No informaon, images or any part of
this document may be copied without the prior wrien
permission of Digikeijs.
DR4024 servo decoder
*R-Bus, B-Bus are registered trademarks of Modelleisenbhan GmbH. XpressNet and RS-Bus are registered trademarks of Lenz
www.digikeijs.com 1
DR4024
servo decoder
Instruction manual

1 Index 2
1.0 General informaon 2
1.1 Index 2
1.2 Warranty and warranty condions 3
1.3 Legal informaon 3
2.0 Product overview 4
2.1 General product informaon 4
2.2 Technical Specicaons 4
2.3 Hardware Overview 5
3.0 Programming 6
3.1 Programming the magnec arcle address 7
3.2 Programming the servo posions A-D 8
3.3 Programming CV's via POM
(main track programming) 9
3.4 Programming CVs on the Programming Track 10
3.5 Reseng the DR4024 to Factory Defaults
(main track POM programming) 11
3.6 Reseng the DR4024 to Factory Defaults
(programming track) 12
3.7 Special feature CV programming for control panels
which switch o the programming track 13
3.8 Reseng the DR4024 to factory sengs for
Control panels which switch o the
programming track 14
4.0 Troubleshoong, 15
4.1 The red LED goes out again even though the
programming buon was not pressed again. 15
5.0 Connecon examples 16
5.1 Connecon opons Power and
Signal Connecon 16
5.2 Connecon DR4102 relay switch polarizaon 17
5.3 Enclosed level crossing with asher 18
5.4 Wing signal NL 18
1 General Informaon
6.0 Servo installaon and connecon 19
7.0 CV Table 20
7.1 Funcon mapping 23
7.2 Presets 24
Please note!
This manual contains currently only the basic information and will be extended
step by step. Suggestions, improvements, additions, comments or suggestions
are always welcome.
[email protected]
DR4024 servo decoder
*R-Bus, B-Bus are registered trademarks of Modelleisenbhan GmbH. XpressNet and RS-Bus are registered trademarks of Lenz
www.digikeijs.com 2

1.2 Warranty and warranty condions
All our products have a 24-month manufacturer's warranty. Read these operang instrucons carefully.
Damage to the product caused by non-compliance with these instrucons will void the warranty.
ATTENTION: The warranty is void if the housing of the product is opened.
1.3 Legal informaon
Prinng errors and mistakes, technical or other changes as well as changes in the availability of individual products are expressly reserved.
Data and illustraons are non-binding. All changes to hardware, rmware and soware are reserved.
We reserve the right to change the design of the product, soware and/or rmware without prior noce.
Copyright
All Digikeijs manuals and other wrien instrucons that are supplied and/or downloaded are protected by copyright.
Duplicaon is not permied without wrien permission from Digikeijs.
DR4024 servo decoder
*R-Bus, B-Bus are registered trademarks of Modelleisenbhan GmbH. XpressNet and RS-Bus are registered trademarks of Lenz
www.digikeijs.com 3

2.0 Product overview
2.1 General product informaon
The DR4024 is a mulprotocol decoder that automacally detects DCC and MM.
With the funcon mapping via CV programming it is possible to realize all imaginable tasks. The DR4024 is a servo decoder with four servo outputs.
Each servo output can be programmed to move to four dierent posions. The DR4024 also has four addional switching outputs which can be used, for exam-
ple, for switch polarizaon or for controlling St. Andrew's crosses and much more.
The DR4024 switches o the control of the servos when the posion is reached, thus guaranteeing that no unnecessary power is consumed.
2.2 Technical specicaons
The connecon terminals for power and signal (track voltage) are designed for a cross-secon of 0.5mm².
Number of
Outputs
Protokoll Loading Capacity
Out 5 - Out 8
Load capacity of the
servo outputs
power supply voltage
DR4024 4 x Servo
(S1-S4)
4x switching output
(Out 5 - Out 8)
DCC
MM
2 A Per output max 1A
(When operang several servos si-
multaneously S1 and S2 total 1A
or S3 and S4 total 1A)
12-18V DC
Minimum recommendaon 12V DC 2A
12-18V AC
Note on power supply:
When using "old" transformers (AC output), under certain circumstances there may be malfuncons in the operaon of the servos.
For this reason we generally recommend the use of switching power supplies with at least 12V (DC) output voltage (DC voltage) and 2A output power.
DR4024 servo decoder
*R-Bus, B-Bus are registered trademarks of Modelleisenbhan GmbH. XpressNet and RS-Bus are registered trademarks of Lenz
www.digikeijs.com 4

2.3 Hardware Overview
1Connecon S1 Servo 1 (Output 1)
2Connecon Out 5 (Output 5)
3Connecon S2 Servo 2 (Output 2)
4Connecon Out 6 (Output 6)
5Connecon S3 Servo 3 (Output 3)
6Connecon Out 7 (Output 7)
7Connecon S4 Servo 4 (Output 4)
8Connecon Out 8 (Output 8)
9Power Anschluss
10 Green LED
Display Supply voltage present
11 programming buon
12 Red LED
Display programming mode
(glows constantly)
Display switching command is executed
(lights up as long as movement is in progress)
13 Signal (rail connecon)
12345678
910 11 12 13
DR4024 servo decoder
*R-Bus, B-Bus are registered trademarks of Modelleisenbhan GmbH. XpressNet and RS-Bus are registered trademarks of Lenz
www.digikeijs.com 5

3.0 Programming
If the power input and the signal input of the DR4024 are connected to each other and are connected to the siding of the control unit, the control unit may
shut down due to overload.
It is beer to use a switching power supply (DC) with at least 12V 2A for adjustment work and normal operaon. You should always keep in mind that some
servos have a "high" current requirement, which can lead to the central unit being switched o during operaon or seng.
Basic informaon about programming the DR4024.
Please pay aenon to these points as otherwise the programming may fail or errors may occur.
• CV programming is always possible on the programming track (if available).
• Some command staons switch o the programming track, which makes programming the DR4024 on the programming track somewhat more
dicult.
• With some central units it comes with the readout of CV's at the programming track again and again to problems that the max. current at the pro-
gramming track, which is available, is too small. Then disconnect the connected servos from the DRR4024.
• To read CV's on the programming track, the connecons POWER and SIGNAl must be connected to the programming track of the central unit.
• Please disconnect the external power supply at the DR4024.
• POM programming is always possible on the main track.
• CV readout via POM or Railcom® is not possible.
DR4024 servo decoder
*R-Bus, B-Bus are registered trademarks of Modelleisenbhan GmbH. XpressNet and RS-Bus are registered trademarks of Lenz
www.digikeijs.com 6

Supply voltage
12-18V DC/AC
3.1 Programming the turnout address
The turnout addresses are always assigned by a turnout command!!!
Make sure the DR4024 is powered from the decoder's power connector. It is best to use a switching power supply with at least 12V DC output voltage
and 2A output power. The signal connecon of the decoder must be connected to the main track output of your control panel!
1. Call up the desired magnec arcle address which the DR4024 is to receive as the start address at the central unit, handset controller, app, etc.
2. Press the programming buon on the DR4024, the red LED will light up connuously.
The decoder is now in programming mode.
3. The next step is to switch the desired turnout address with the control panel, the app or the handset control.
DR4024 as the start address.
4. The programming mode is automacally terminated aer switching the turnout address.
The red LED goes out again to indicate that the programming mode has been exited.
5. The DR4024 now occupies a maximum of 8 addresses starng with the rst switched turnout address.
The start address (turnout address) for the DR4024 is always assigned via a turnout command and not via the CV1!!!
If the CV1 is nevertheless wrien with an address, the decoder can no longer be programmed with the locomove address 9999!
DR4024 servo decoder
*R-Bus, B-Bus are registered trademarks of Modelleisenbhan GmbH. XpressNet and RS-Bus are registered trademarks of Lenz
www.digikeijs.com 7

1. Make sure the DR4024 is powered from the decoder's power connector. It is best to use a switching power supply with at least 12V DC output voltage and 2A output power.
The signal connector of the DR4024 must be connected to the main track output of your control panel!
2. A locomove with address 9999 and 128 speed steps DCC must be dened in the central unit, mul mouse, app etc..
This locomove address can be used to control and program the DR4024 like a locomove.
3. Select the locomove with the address 9999 at the central staon, mul mouse, app, etc.
Switch funcon F0 on and o again to acvate the locomove in the control center.
If this procedure is not carried out, some command staons do not recognize that the locomove 9999 has been called. Then it is not possible to carry out the following pro-
gramming!
4. Make sure that the funcons F0 (light), F1, F2, F3 and F4 are switched o on the control panel, App or on the handset control.
Set the speed control knob at the control panel, app or handset to zero speed.
5. Now actuate the servo that you want to set (via the control panel by means of the switch address).
The selected servo will now move to the switched posion.
6. Press the programming buon on the DR4024. The red LED now lights up connuously and indicates that the DR4024 is in "Programming Mode" is located. The servo just
actuated now moves to the neutral posion (centre posion of the servo).
7. Move the speed controller (forwards or backwards) and set the servo to the desired posion A (le posion A).
8. Switch the F1 funcon on the speed controller on and o again to save this posion A in the DR4024.
Important: when saving the posions in the decoder, the red LED goes out briey to indicate that the posion has been saved.
9. Turn the speed controller (forwards or backwards) and set the servo to the desired posion B (right posion B).
10. Switch funcon F2 on the speed controller on and o again to save this posion B in the DR4024.
11. If you only want to change or set posions A and B, proceed to step 16.
12. Turn the speed controller (forwards or backwards) and set the servo to the desired posion C (le posion C).
13. Switch the funcon F3 on the speed controller on and o again to save this posion C in the DR4024.
14. Turn the speed controller (forwards or backwards) and set the servo to the desired posion D (right posion D).
15. Switch the funcon F4 on the speed controller on and o again to save this posion D in the DR4024.
16. Press the programming buon on the DR4024 decoder to exit programming mode.
The red LED now goes out and indicates that the programming mode has been exited.
17. Repeat the above steps for each servo output to adjust.
A
C
B
D
Instead of ending the programming mode with step 16 you can select the next servo by switching F0 on and o (switching the light on and o
again) and connue with step 7 to program the next servo at the decoder.
DR4024 servo decoder
*R-Bus, B-Bus are registered trademarks of Modelleisenbhan GmbH. XpressNet and RS-Bus are registered trademarks of Lenz
www.digikeijs.com 8
3.2 Programming the servo posions A-D

3.3 Programming of CV's via POM (main track programming)
Make sure the DR4024 is powered from the decoder's power connector. The green LED next to the power connector must now light up permanently. It is best
to use a switching power supply with at least 12V DC output voltage and 3A output power. The signal connecon of the decoder must be connected to the main
track output of your control panel! The DR4024 cannot be read out via Railcom®!
1. A locomove with address 9999 and 128 speed steps DCC must be dened in the central unit, mul mouse, app etc..
The DR4024 can be programmed similar to a locomove decoder using this locomove address.
2. Select the locomove with the address 9999 at the central staon, mul mouse, app, etc.
Switch the funcon F0 (light) on and o again to acvate the locomove in the control panel.
3. Press the programming buon on the DR4024. The red LED is now lit connuously and indicates that the DR4024 is in "programming mode".
4. Select the CV Programming (POM) funcon in your control panel, app or handset.
(For further informaon on CV byte or CV bit programming, please refer to the operang instrucons of your control panel)
5. Now the desired CV value can be wrien to the DR4024 with the respecve funcon Write POM of the central, app or handset controller.
6. An innite number of CV's can be sent one aer the other to the DR4024.
7. To exit the programming mode of the DR4024, the programming buon must be pressed again.
The red LED goes out and indicates that the programming mode has been terminated.
Supply voltage
12-18V DC/AC
The start address (turnout address) for the DR4024 is always assigned via a turnout command and not via the CV1!!!
If the CV1 is nevertheless wrien with an address, the decoder can no longer be programmed with the locomove address 9999!
Aenon!!! If for any reason the address 9999 required for
programming has been changed in the DR4024, the reset must
be carried out via the programming track, point 3.6.
DR4024 servo decoder
*R-Bus, B-Bus are registered trademarks of Modelleisenbhan GmbH. XpressNet and RS-Bus are registered trademarks of Lenz
www.digikeijs.com 9

3.4 Programming of CV's via the programming track
Connect the signal and power connecons of the DR4024 to the programming track connecon of your control panel.
Please note that reading out and programming the DR4024 via the programming track only works if the central unit does not switch o the programming track!
Therefore, before aempng programming, check that the green LED next to the power connector is lit. Only if this is the case can the DR4024 be successfully
programmed as described in this secon. If the green LED does not light up, refer to secon 3.6 of this manual.
1. Connect the signal and power connecons to the programming track of the control panel.
2. Now check whether the green LED next to the power connector is permanently lit.
If the green LED does not light up, refer to secon 3.6 of this manual.
3. A locomove with address 9999 and 128 speed steps DCC must be dened in the central unit, mul mouse, app etc..
The DR4024 can be programmed similar to a locomove decoder using this locomove address.
4. Select the locomove with the address 9999 at the central staon, mul mouse, app, etc.
Switch the funcon F0 (light) on and o again to acvate the locomove in the control panel.
5. Press the programming buon on the DR4024. The red LED is now lit connuously and indicates that the DR4024 is in "programming mode".
6. Select the CV programming funcon via the programming track in your central, app or handset controller.
(For further informaon on CV byte or CV bit programming, please refer to the operang instrucons of your control panel)
The start address (turnout address) for the DR4024 is always assigned via a turnout
command and not via the CV1!!!
If the CV1 is nevertheless wrien with an address, the decoder can no longer be pro-
grammed with the locomove address 9999!
DR4024 servo decoder
*R-Bus, B-Bus are registered trademarks of Modelleisenbhan GmbH. XpressNet and RS-Bus are registered trademarks of Lenz
www.digikeijs.com 10

3.5 Reset DR4024 to Factory Sengs(Main Track POM programming)
Connect the signal and power connectors of the DR4024 to the main track connector of your control panel. The green LED next to the power connector must
now light up permanently. Alternavely, the power connecon can also be supplied with an external power supply (min 12V DC 2A).
The DR4024 cannot be read out via Railcom®!
1. A locomove with address 9999 and 128 speed steps DCC must be dened in the central unit, mul mouse, app etc.
The DR4024 can be programmed similar to a locomove decoder using this locomove address.
2. Select the locomove with the address 9999 at the central staon, mul mouse, app, etc.
Switch the funcon F0 (light) on and o again to acvate the locomove in the control panel.
3. Press the programming buon on the DR4024. The red LED now lights up connuously and indicates that the DR4024 is in "programming mode".
is located.
4. Select the CV Programming (POM) funcon in your control panel, app or handset.
(For further informaon on CV byte or CV bit programming, please refer to the operang instrucons of your control panel)
5. Now write the CV 8 with the decimal value 8 to reset the DR4024.
6. Exit the programming mode by pressing the programming buon on the DR4024.
The red LED goes out and indicates that the programming mode has been terminated.
Important! Otherwise the DR4024 starts in programming mode again.
7. Now disconnect the power and signal connecons from the main track
Aenon! Wait approx. 30 seconds before powering the DR4024 again and restoring the siding.
Supply voltage
12-18V DC/AC
The start address (turnout address) for the DR4024 is always
assigned via a turnout command and not via the CV1!!!
If the CV1 is nevertheless wrien with an address, the de-
coder can no longer be programmed with the locomove
address 9999!
DR4024 servo decoder
*R-Bus, B-Bus are registered trademarks of Modelleisenbhan GmbH. XpressNet and RS-Bus are registered trademarks of Lenz
www.digikeijs.com 11

3.6 Reset DR4024 to Factory Sengs (Programming Track)
The reset via the programming track should only be done if the reset via the POM programming did not work.
Connect the signal and power connecons of the DR4024 to the programming track connecon of your control panel.
Please note that reading out and programming the DR4024 via the programming track only works if the central unit does not switch o the programming track! Therefore,
before aempng programming, check that the green LED next to the power connector is lit. Only if this is the case can the DR4024 be successfully programmed as de-
scribed in this secon. If the green LED does not light up, refer to secon 3.7 of this manual.
1. Connect the signal and power connecons to the programming track of the control panel.
2. Now check whether the green LED next to the power connector is permanently lit.
If the green LED does not light up, refer to secon 3.7 of this manual.
3. Press the programming buon on the DR4024. The red LED now lights up connuously and indicates that the DR4024 is in "programming mode".
is located.
4. Select the CV programming funcon via the programming track in your central, app or handset controller.
(For further informaon on CV byte or CV bit programming, please refer to the operang instrucons of your control panel)
5. Now write the CV 8 with the decimal value 8 to reset the DR4024.
6. Exit the programming mode by pressing the programming buon on the DR4024.
The red LED goes out and indicates that the programming mode has been terminated.
Important! Otherwise the DR4024 will restart in programming mode.
7. Now disconnect the power and signal connecons from the programming track.
Aenon! Wait approx. 30 seconds before powering the DR4024 again and restoring the siding.
The DR4024 is now reset to factory sengs. The POM address was reset to 9999
again and the DR4024 has the magnec arcle address 1 again. By switching the
magnec arcle address 1 it can be checked whether the RESET was successful.
DR4024 servo decoder
*R-Bus, B-Bus are registered trademarks of Modelleisenbhan GmbH. XpressNet and RS-Bus are registered trademarks of Lenz
www.digikeijs.com 12

3.7 Special feature CV programming for control panels that
Switch o the programming track
Some control panels (Uhlenbrock® Basis®, Daisy 2® Startset, Piko® SmartControl® light, etc.) only switch on the supply voltage to the programming track
during programming. The green LED next to the power connector of the DR4024 indicates whether the programming track always outputs voltage. If this
does not light up connuously, the programming track is switched o. This leads to the DR4024 requiring a dierent programming or reseng procedure
than usual.
This procedure is described in this secon.
1. Now that you have determined that the green LED next to the power connector is not permanently lit, disconnect the POWER and SIGNAL connectors
from the programming track.
2. Connect the POWER and SIGNAL connectors to the main track of your control panel.
Now the green LED next to the POWER connector should light up permanently.
3. Now press the programming buon on the DR4024.
The red LED will light to indicate that the DR4024 is in programming mode
4. Now disconnect the POWER and SIGNAL connectors from the main track (Track Out).
5. Now reconnect the POWER and SIGNAL connecons to the programming track of your control panel.
The green and red LEDs now go out because the programming track is not constantly supplied with power.
The programming mode of the DR4024 remains unchanged.
6. Select the CV programming funcon via the programming track in your central, app or handset controller and program the desired CVs one aer the oth-
er.
(Further informaon on CV byte or CV bit programming can be found in the operang manual of your control panel)
Aer you have successfully changed all desired CV's, you must exit the programming mode of the central unit before proceeding with the next step.
7. Disconnect the POWER and SIGNAL connecons from the programming track.
8. Connect the POWER and SIGNAL connectors to the main track of your control panel.
Now the green LED next to the POWER connector and the red LED both light up again.
The red LED indicates that the DR4024 is sll in programming mode.
9. Now press the programming buons on the DR4024. The red LED goes out and the programming mode is terminated.
DR4024 servo decoder
*R-Bus, B-Bus are registered trademarks of Modelleisenbhan GmbH. XpressNet and RS-Bus are registered trademarks of Lenz
www.digikeijs.com 13

3.8 Reset DR4024 to factory sengs for control units that switch o the programming track
Some control panels (Uhlenbrock® Basis®, Daisy 2® Startset, Piko® SmartControl® light, etc.) only switch on the supply voltage to the programming track
during programming. The green LED next to the power connector of the DR4024 indicates whether the programming track always outputs voltage. If this
does not light up connuously, the programming track is switched o. This leads to the DR4024 requiring a dierent programming or reseng procedure
than usual. This procedure is described in this secon.
1. Now that you have determined that the green LED next to the power connector is not permanently lit, disconnect the POWER and SIGNAL connectors
from the programming track.
2. Connect the POWER and SIGNAL connectors to the main track of your control panel.
Now the green LED next to the POWER connector should light up permanently.
3. Now press the programming buon on the DR4024.
The red LED will light to indicate that the DR4024 is in programming mode.
4. Now disconnect the POWER and SIGNAL connectors from the main track (Track Out).
5. Now reconnect the POWER and SIGNAL connecons to the programming track of your control panel.
The green and red LEDs now go out because the programming track is not constantly supplied with power.
The programming mode of the DR4024 remains unchanged.
6. Select the CV programming funcon via the programming track in your central, app or handset controller.
(Further informaon on CV byte or CV bit programming can be found in the operang manual of your control panel)
To reset to factory sengs, the decimal value 8 must be wrien to CV8.
Aer you have described the CV 8, you must exit the programming mode of the central unit before proceeding with the next step.
7. Disconnect the POWER and SIGNAL connecons from the programming track.
8. Connect the POWER and SIGNAL connectors to the main track of your control panel.
Now the green LED next to the POWER connector and the red LED both light up again.
The red LED indicates that the DR4024 is sll in programming mode.
9. Now press the programming buons on the DR4024. The red LED goes out and the programming mode is terminated.
10. Aenon! Now disconnect the POWER and SIGNAL connecons from the main track of the control panel.
This is absolutely necessary to successfully complete the RESET. Aer approx. 30 seconds the desired connecon can be restored.
The DR4024 is now reset to factory sengs. The POM address was reset to 9999 again and the DR4024 has the magnec arcle address 1 again. By switch-
ing the magnec arcle address 1 it can be checked whether the RESET was successful.
DR4024 servo decoder
*R-Bus, B-Bus are registered trademarks of Modelleisenbhan GmbH. XpressNet and RS-Bus are registered trademarks of Lenz
www.digikeijs.com 14

4.0 Troubleshoong
4.1 The red LED goes out again although the programming buon has not been pressed again.
Some central units have the problem that aer pressing the programming buon of the DR4024, the red LED goes out again shortly aer the programming
mode has been acvated and the DR4024 automacally terminates the programming mode.
This happens if the locomove with the address 9999 has not yet been acvated in the central staon. This can be easily avoided by always "acvang" "the
locomove" with the address 9999 before pressing the programming buon of the DR4024.
In order to avoid the red LED exnguishing, please observe the following procedure for POM programming:
1. Dene a locomove with locomove address 9999 (DCC, 128 speed steps) in the central/mul mouse or app.
2. Acvate the "locomove" with address 9999 in the control panel by switching the lighng on and o again (F0) .
3. Press the programming buon on the DR4024 only now. The red LED will now glow connuously to indicate that the DR4024 is in the
programming mode.
4. Now start to change the desired CV's via POM (locomove address 9999).
5. To exit the programming mode of the DR4024, the programming buon must be pressed again.
The red LED goes out and indicates that the programming mode has been terminated.
DR4024 servo decoder
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Supply voltage
12-18V DC/AC
Recommended min.
12V DC 2A
5.1 Connecon opons Power and signal Connecon
Signal Connecon to main track
Power Connecon to an external power supply
Recommended for normal operaon and for the POM
programming
Signal Connecon to programming track
Power Connecon to programming track
Signal Connecon to main track
Power Connecon to main track
Alternave to connecng an external power supply.
Suitable for normal operaon and for the POM
programming
5.0 Connecon examples
DR4024 servo decoder
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DR4024 PRESET 1
+ DC
+
-
Important! Be sure to observe the polarity (+ and - ) of the
DR4102!
An incorrect connecon will destroy the Out x switching output
on the DR4024!
NO
C
5.2 Connecon DR4102 relay switch polarizaon
DR4024 servo decoder
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5.3 Railway crossing with barrier and interchangeable indicators
5.4 Wing signal NL
DR4024 servo decoder
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6.0 Servo installaon and connecon
• Servo connecon cables should always be kept as short as possible to avoid interference.
• With long servo cables, always use twisted connecon cables with a cross-secon of at least 0.35 mm² to minimize interference.
• Always lay the servo cables separately from other cables to avoid interference.
• Always make sure that the voltage source used can provide sucient current (A).
A switching power supply is beer suited for this purpose than an "old" AC transformer.
• Never twist the servo by hand. This can cause damage to the gearbox of the servo.
• The servo lever should always be mounted in the middle posion of the servo. Observe point 3.2 of this manual.
• Always ensure that the servo has sucient freedom of movement during installaon to avoid damage.
• When screwing on the servo lever, make sure that the servo is not twisted to avoid damage to the gear unit.
• When adjusng the servo posions, ensure that the actuang parts have sucient freedom of movement to avoid damage.
DR4024 servo decoder
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7.0 CV Table
CV CV Denion Range Value
7Decoder Version 13
8Manufacturer ID Value '8' resets the decoder to factory sengs. 42
17 Long address high byte 192-255 231
18 Long address low byte 0-255 15
47 Presets / Presets 0-3
(this CV can only be wrien a read out is not possible!)
0 – 3 0
The DR4024 servo decoder has four presets to make programming easier. Each preset congures the DR4020 so that you do not have
to change CVs manually. For detailed informaon on these presets, see page 24.
112 Flashing frequency for the switching outputs
with bit 7 acve in CV117 - CV120. Value 20 is 90x per minute.
0-255 20
113
-
116
CVs 113-116 have the same funcon as servos 1-4. 0-255 2
Value Funkon
0Default seng 0 > 4 servos (1-4) and 4 separate switching outputs (5-8) (8 addresses)
1Default seng 1 > 4 servos (1-4) with linked switching outputs (1-4) (4 addresses)
2Default seng 2 > 4 servos with mass simulaon (1-4) and 4 separate switching outputs (5-8) (8 addresses)
3Default seng 3 > Level crossing with asher, 2 barriers and mass simulaon (2 addresses)
Bit Funkon Value
0-3Sets the servo step size.
Value 15 is the fastest;
Value 0 is the slowest.
2
0-15
4-7Sets the servo step speed.
Value 15 is the smallest and Value 0 is the largest. 0 stands for 50 steps per
second. 1 = 25/s, 2 = 12/s, 3 = 5/s, 4 = 4/s. etch... MaximumValue 15 = 1
step / second.
The last seng in combinaon with bits 0-3 switched to 0 means that the
servo switches between the two extreme posions in 126 seconds!
0
(0-15)
*16
DR4024 servo decoder
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