DR4024 DIGISERVO (v1.31)
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Changing settings (CVs) on the decoder
Changing settings such as switching times or choosing one of the many presets in CV47 can be done n 2 diffe-
rent ways as described below.
CV programming / reading via the programming track
This method of programming is commonly used but can be complicated.
The DR4024 servo module is equipped with an internal load resistor. This means you do not need to attach an
external resistor to the module.
Step 1 :
Connect both
power
and
signal
inputs on the decoder to the rails output on your control unit.
Step 2 :
Press and hold the programming switch on the module until the red LED stays on.
Step 3 :
Now connect both the power and signal inputs on the decoder to the programming output on your
control unit.
Step 4 :
Now you can change the desired CVs with CV-byte or CV-bit programming.
(Refer to your control unit’s manual for information about CV-byte or CV-bit programming)
Step 5 :
Connect both
power
and
signal
inputs
on the decoder to the rails output on your console.
Step 6 :
Press the programming switch on the module until the LED goes out.
Step 7 :
Your changes are saved and the module is ready for use.
CV programming via the main track ( POM )
Another method of programming is POM (Program On Main). With this type of programming, you can simply
connect the module to the track without the laborious job of making connections or adding resistors as requi-
red when programming via the separate programming track.
Step
1 :
Connect the
signal
input on the decoder to the rails output on your control unit.
Step 2 :
Ensure the module is supplied with voltage via the power input on the module.
(You can also connect the
power
and
signal
inputs to each other)
Step 3 :
Adjust your control unit to POM programming mode
(more information about POM can be found in the control unit’s manual)
Step 5 :
Select
loc address
9999
on your control unit
Step 6 :
Press the switch on the module until the red LED comes on
Step 7 :
Program the required CVs on the module
Step 8 :
Press the button on the module until the LED turns off
Step 9 :
The module is ready for use with the new settings.
CAUTION! In some cases it may be necessary to give the DR4024 module an address again by following the in-
structions outlined in ‘
Giving the module an address
’ on page 13 of this manual.
