Uhlenbrock Elektronik 75 420 Bedienungsanleitung

Loco-Decoder 75 420

Digital Decoder for DC-Motors

for the Märklin-Motorola Format

Suitable for dc-locos by Bemo, Brawa (Life-Like), Fleischmann, Gützold, Lili ut, Lima, Piko,

Märklin-Hamo, Rivarossi (Atlas), Roco, Trix. Not suited for coreless instrument motors!

Properties

Locos with dc motors can be o erated digitally by using the 75 400 decoder. This decoder

o erates on both the old and the new extended Motorola data formats. It features two direction-

de endent lam out uts that are controlled by the function/off keys and an alternate address.

Uhlenbrock decoders can be rogrammed by Intellibox or Märklin Control 80f. Decoder address,

acceleration/braking rates, as well as starting and maximal motor voltage can be set and altered

at every time.

Digital Operation

When running in digital mode, the loco works according to the arameters set by the user. These,

as well as s eed and direction settings, are ermanently stored. This means that a loco will retain

its settings and will continue to o erate as before after the track ower has been reestablished.

Therefore, a loco can be run in standard automatic block systems.

When crossing over into an analog owered section, it will retain its s eed and direction settings

rovided the track voltage is high enough. Changing of direction or s eed is not ossible though.

Analog Operation

In analog mode the decoder acts like a standard reverser. Loco will sto when entering a digital

section.

Setting the Operation Mode

Switching over from digital to analog mode is done as described in the rogramming instructions.

A value of 01, analog code, is assigned to rogramming modes function 08 . Factory set code

value is 02 for digital o eration.

Im ortant: The state of the lam s set in digital mode will be retained in analog mode, i. e. when

lam s should light in analog mode, they must have been switched on in digital mode.

A decoder can be set back to digital when in analog mode, by holding the transformers control

knob in overvoltage osition for at least 16secs.

Momentum Control

Use f4 to switch momentum on or off.

Im ortant: Di switch #2 on back of Märklin Control Unit 6021 must be set to ON in order to transmit

the new Motorola format.

Compatibility

The decoder is com atible to Märklins accelerating/decelerating circuit for their C90 decoder.

This circuit was ublished in Märklin-Magazin 4/93 and 5/93.

Technical Data

Max. motor current: 0.7 am , 1.0 am with heatsink

Motor surge current: 2.0 am s

Ancillary out uts: 2 x 0.9 am

Total load: max. 1.0 am

Size: 19 x 16 x 5 mm (3/4" x 5/8" x 3/16")

Address range: 1- 255, accessible by Intellibox

1- 80, when em loying another central unit

The decoder is factory reset to address 01 and digital o eration.

Programming of Uhlenbrock Decoders by Intellibo

The most comfortable way to rogram a decoder is offerd by the Intellibox. A menu-driven

rogramming mode in lain english is rovided. Programming is carried out by selecting the menu

for non-com ensated decoders (750/770, 75100 or 754xx).

You find exact instructions in the Intellibox handbook.

Programming of Uhenbrock Decoders by LOKTOOL

This com uter routine is used to rogram Uhlenbrock decoders by a lying a Märklin central unit

in connection with a Märklin interface. See reverse for a brief descri tion..

A short circuit from decoder parts to input or chassis

or at the motor/lamp outputs may destroy the device!

Fitting the loco-decoder 75 420

Connection of the unit

Remove the shorting lug or the old reverser of

the loco and insert the interface lug into the

socket.

Should the headlights be lit in the wrong direction,

the lug must be turned by 180°.

Caution

Most of the models suitable for ac-o eration

are already equi ed with 19V-lam s that are

also com atible with digital o eration.

Should you find lam s for a lower voltage, re lace them before changing over to digital

o eration.

Installation of an extra function

There are other devices ossible that can be controlled by the ancillary out uts, e. g. a smoke

generator.

Connect both out uts with each other if you wish them to work direction-inde endently.

Fixing the unit in the model

Use the su lied adhesive ad for fixing where there is room for the decoder. The ad kee s

the unit insulated and fixed in its osition.

In case the loco has a high current consum tion, we recommend to fasten it directly to a metal

chassis frame with hot glue. All common brands are suitable for this.

Check for ro er wiring after installation with a wiring checker or an ohmmmeter. Make sure that

the shell will not touch the unit and that no wires can be caught when shell is installed.

1 motor (orange)

2 rear headlight - (yellow)

3 n.c. (green)

4 chassis ground (black)

5 motor (gray)

6 front headlight - (white)

common headlight power source + (blue)

8 pickup shoe (red)

Wire assignment of the NEM 652 plug

Important

If a decoder will not react after a rogramming cycle, most robably its address has been altered

inadvertently. To resolve this situation, either try all address settings, or Intelliboxs or Loktools

address search function.

Wrong settings may be corrected by resetting the decoder using rogramming function 10.

Programming of Uhlenbrock Decoders without load compensation

by a Märklin Central Unit

Follow exactly these steps when programming the decoder.

Do not push any other keys.

1. Preparation

sConnect a Märklin central unit together with a control 80/80f or a control unit

to the track where the loco sits.

sSwitch off power supply for at least ten seconds, then switch on again.

All digital signals that may possibly interfere have died away.

sKey in decoder address.

Every new decoder is set to 01.

sHold knob in direction reversal position for at least 8 secs.

Decoder changes over to programming mode.

2. Calling up the Programming Functions

It does not matter whether a single function or several at a time are called up.

Functions not called up remain unaltered.

The loco s lamps will flash four times in acknowledge of a properly programmed step.

2.1 Main Address

sCall up function: Key in 01 and shortly push knob to reverse - a lamp will flash

sSet value: Key in 01- 80 and shortly push knob to reverse - a lamp will flash

2.2 Minimal Speed (min. speed for speed step 2)

sCall up function: Key in 02 and shortly push knob to reverse - a lamp will flash

sSet value: Adjust knob to desired minimal speed.

Depress function and off keys consecutively when loco is moving - it will stop and a lamp will flash

2.3 Maximal Speed (max. speed for speed step 15)

sCall up function: Key in 03 and shortly push knob to reverse - a lamp will flash

sSet value: Adjust knob to desired maximal speed.

Depress function and off keys consecutively when loco is moving - it will stop and a lamp will flash

2.4 Not applicable

2.5 Acceleration

sCall up function: Key in 06 and shortly push knob to reverse - a lamp will flash

sSet value: Key in 01- 32 and shortly push knob to reverse - a lamp will flash

01 = no momentum, 32 = maximal momentum; a value of 10 will render a realistic impression.

2.6 Deceleration

sCall up function: Key in 0 and shortly push knob to reverse - a lamp will flash

sSet value: Key in 01- 32 and shortly push knob to reverse - a lamp will flash

01 = no momentum, 32 = maximal momentum; a value of 10 will render a realistic impression.

2.7 Operation Mode

sCall up function: Key in 08 and shortly push knob to reverse - a lamp will flash

sSet value: Analog mode - key in 01 and shortly push knob to reverse - a lamp will flash

Digital mode - key in 02 and shortly push knob to reverse - a lamp will flash

2.8 eset

sKey in 10 and shortly push knob to reverse - a lamp will flash

Decoder is reset to factory default values: Address 01, acceleration/braking 01, digital mode.

3. Leaving Programming ode

s Key in 80 and shortly push knob to reverse.

Decoder returns to its normal operating mode.

Default setting

Uhlenbrock Elektronik GmbH

Mercatorstr.6

D-46244 Bottrop

Made in Germany

These are your advantages:

Two years warranty

from date of purchase

Service

In case of an eventual failure please return the defective item to us for

repair. Please include purchase proof and a short description of defect,

as well as stating the decoders address setting.

otline

In case of questions,we are ready to answer them for you!

Directly contact our technician: (49) 2045 858327

Mo Fr except Wed 14:00 16:00 hrs CET, Wed 16:00 18:00 hrs CET

The figure 2 at the end of the item no.

means that this article is delivered with

an english discribtion.

Item no. 75 422 11.01Be

Loktool 2.0 for Windows (TM)

contains these features:

Programming of decoders - comfortable in ut of all arameters, store in decoder rofile

database.

Address search function - for all decoders using the Märklin-Motorola data format.

Controller screen - six controllers are shown on a screen dis lay.

ardware requirements: A Märklin central unit and 6050/6051 interface connected to a PC.

Programm will run on all PCs from 386-25 on under Win 3.x, 95/98 and NT.

www.uhlenbrock.de

Be it most recent information about Intellibox, a ricelist or a listing of authorized dealers, lus

various ublications to download, our website warrants your visit in every case.

Warranty Statement

Every item is fully tested for functioning before shi ment. If a defect occurs within two years

after urchase, the item will be re aired free of charge against resentation of urchase roof.

Damages caused by overload or im ro er treatment are not covered by this warranty.

For EU only

Please note that decoders may only used in models carrying the EC conformance label.

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