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LokSoundXL User Manual V2.1 05/2002

Connecting a DC or coreless motor

When installing the decoder you must not allow

any metal part of the locomotive to touch the

surface components of the decoder.

The LokSoundXL module has more connections

than common decoders, which are needed for

sound generation and function outputs.

LokSoundXL comes with two robust terminal

blocks to which you can connect the wires of

your locomotive. Please note when connecting

the wires to the terminals that:

LokSoundXL decoder has two terminal block (No.

1 and No. 2): make sure you are using the correct

terminal block!

Make sure that the wire diameter is big enough

for the terminal (at least 0,20 mm

Solder the ends of the wires or crimp them.

Make sure that no short circuits occur while

connecting the wires to the terminals.

Use a suitable screwdriver.

Hold the termimals while turning the screws to

avoid pressure on the circuit board.

Check every wire for good connection (pull lightly

on the wire).

Please check all connections with an ohmmeter.

Always install a capacitor of at least 47nF in parallel to

the motor terminals. See figure 1 for an optimal

example of RFI suppression. Please note there are

several methods of RFI suppression: we recommend

to leave any suppressor (e.g. inductors) in the

locomotive.

Please check all connections with an ohmmeter,

particularly if there are any short circuits between

motor- and current pick-ups.

3.2 General circuit diagram

Figures 2 and 3 show the general connection scheme

of LokSoundXL decoders:

The left terminal block (No. 1) has all connections that

are needed for driving- and sound operation. The

right terminal (No. 2) is only needed for function

outputs.

Never mix up those two terminal blocks and always

make sure the connections are correct. If you connect

it the wrong way you may destroy the module.

Connect right rail to terminal 1-1, connect left rail to

terminal 1-2.

Use terminals 1-3, 1-4 and 1-6 for the motor. When

connecting DC or coreless motors only use terminals

1-3 and 1-6. See paragraph 3.3 and 3.4 for further

details.

A wheel sensor can be connected to terminals 1-4

and 1-5. See chapter 3.9 for more details.

Connect the loudspeaker to terminals 1-8 and 1-9.

See paragraph 3.6 for installation.

Terminal 2 is only for lighting and special functions.

Please make sure that all outputs are connected against

terminals 2-9 (positive supply voltage). Please see

chapter 3.7 and 3.8 for details.

3.3 Connecting a DC or coreless motor

Always refer to the general wiring diagram on page 6

and bear in mind to keep any inductors connected.

For each type of motor (Buehler, Mabuchi, Faulhaber)

there are different parameters needed for load control.

They have to be adapted to optimize driving

performance (see chapter 4.2.2).

For the motor connection use terminal 1-3 and

1-6, terminals in between are not connected.

3.4 Connecting a universal motor (AC motor)

For easy conversion of older gauge-I locomotives with

universal motors (AC motor) the motors can be

directly connected to the LokSoundXL-decoder (see

Figure 4).

Connect the two motor terminals to terminals 1-3 as

well as 1-5. Exchanging both wires will change

direction of travel.

10nF

Motor

147nF

figure 1figure 1

figure 1: RFI suppression

1 2 3 4 5 6 7 8 9 10 ... 35 36

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