Digitrax DZ123M0 User manual

DZ123M0
Fits MicroTrains ZGP-35 Locomotives
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Fe ea at tu ur re es s: :
nDigitrax LocoMotion®System-Your locomotives look like the real thing.
The Digitrax LocoMotion System makes them run like the real thing, too!
Torque Compensation for smooth as silk silent operation.
128 Speed Step operation (14 or 28 steps can also be used).
Momentum with acceleration and deceleration.
Normal Direction of Travel is user selectable.
Switching Speed feature for easier and faster access to yard speeds.
3 Step Speed Tables set start, mid and max voltage for custom control.
28 Step Speed Tables with 256 level resolution for precise control.
nScalable Speed Stabilization (Back EMF) with simple setup & 256 level
resolution.
nSuperSonic motor drive for silent operation.
nFX3Functions for prototypical lighting effects:
Constant Brightness Lighting with directional or independent control.
Dynamic and Static Qualifiers operate functions based on direction,
F0 on or off, loco direction and F0, and whether loco is moving.
Function Remapping of 14 functions for custom function setup.
Master Light Switch turns off all lights & functions with one keystroke.
Advanced Consist Function Controls
nPlug ‘N Play design makes installation quick and easy.
nGolden-White LED for added realism.
nTransponder equipped ready for transponding on your layout.
nAll Mode Programming with Operations Mode Read Back-read back CV
values right on the mainline.
nDecoder Factory CV Reset with or without speed table initialize.
nMotor Isolation Protection prevents damage to your loco and decoder.
nBasic, Advanced & UniVersal Consisting
n2 Digit and 4 Digit Addressing
nDCC Compatible
©2006 Digitrax, Inc www.digitrax.com 1
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Z Scale
Mobile Decoder
DCC Plug ‘N Play
1 Amp/1.25 Amp Peak
2 FX3Functions, 0.5 Amp

©2006 Digitrax, Inc www.digitrax.com 2
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1 DZ123M0 Decoder 1 Instruction sheet
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See the Digitrax Decoder Manual for complete decoder test procedures, instal-
lation instructions, programming and technical information. Digitrax manuals
and instructions are updated periodically. Please visit www.digitrax.com for the
latest versions, technical updates and additional locomotive-specific installation
instructions.
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In ns st ta al ll la at ti io on nI In ns st tr ru uc ct ti io on ns s- -M Mi ic cr ro oT Tr ra ai in ns sG GP P- -3 35 5L Lo oc co om mo ot ti iv ve e
1. Carefully remove the locomo-
tive’s shell from the frame.
Notice the orientation of the
shell for reinstallation.
Figure 1.
2. Carefully remove the motor
springs with tweezers. Store
these springs in a safe place
for later re-use Figure 2.
3. Slide the factory light board
forward to release it from
under the clips on the locomo-
tive frame. Be careful not to
distort the frame clips as you
slide and lift the light board off
the frame. Figure 2.
4. Take the DZ123M0 decoder
(noting the correct orientation
of the frame pads) and slide
underneath frame clips as indi-
cated in the Figure 3. You will
need to gently flex the front of
the decoder in order to clear
the GP-35’s retaining post
(partially shown).
5. As shown in Figure 4 reinstall
the motor springs, taking care
to insure the springs do not
touch the loco frame. Finally
reinstall the locomotive shell.
6. Place the locomotive on the
track, select address 03 on
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Figure 1:
Remove loco shell
Light Board
Frame Clips
Insure decoder is
firmly inserted
underneath frame clips
Figure 2: Remove two motor springs
with tweezers - store in safe place
Figure 3: Installing Decoder in frame.
Flex front of decoder
to clear front post
Spring Pads
Retaining post
Frame screws

©2006 Digitrax, Inc www.digitrax.com 3
your throttle and apply power.
If the motor does not respond
but you can control the lights,
check the installation for
motor spring short circuits.
7. Digitrax decoders are set up
with configuration variable
(CV) default values so you can
run your locomotive right
away using address 03. See the
Digitrax Decoder Manual for
complete instructions on set-
ting up the CVs for customizing your locomotive’s performance characteris-
tics.
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Your Digitrax decoder is ready to run and will operate using address 03 with no
additional programming. For a more prototypical railroading experience, your
decoder can be customized for your specific locomotive by programming some
of the Configuration Variables, or CVs, available. See the Digitrax Decoder
Manual or the Digitrax web site for more information.
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Note: Make sure the motor
springs do not touch the
locomotive’s frame
Figure 4: Re-installing springs.
Figure 5: Completed Installation.

©2006 Digitrax, Inc www.digitrax.com 4
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Ch ha an ng gi in ng gt th he eD De ec co od de er rA Ad dd dr re es ss s
The first CV most people change is the decoder address so that the loco can be
independently controlled with it’s own unique address. All Digitrax decoders
are shipped with CV01 (AD2), the two digit address, set to 03. See your Starter
Set Manual for complete programming instructions. Following is a brief
description of how to change the decoder address with a DT series throttles.
1. Place the loco on the programming track. Go into Program Mode on your
system. On DT400 press PROG. On DT300, DT100 & DT200 press
RUN/STOP & FN/F0.
2. Choose AD2 for 2 digit addressing or AD4 for 4 digit addressing (DT300 &
DT400). (Ad for DT100 & DT200, see set manual for 4 digit instructions).
3. Choose the address you want to set up for the decoder.
4. Complete address programming. On DT400 press ENTER. On DT300,
DT100 & DT200 press SEL.
Note: CV29 must also be programmed to enable 4 digit addressing, this is
done automatically by the DT300 & DT400 but not on earlier throttles.
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Your locomotives look like the real thing, now you can make them run like the
real thing, too. Digitrax decoders incorporate torque compensation for smooth
as silk operation. You can also program CVs that control momentum, 3 step
and 128 step speed tables, switching speed, normal direction of travel,
scaleable speed stabilization and more to take full advantage of the Digitrax
LocoMotion™ System.
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Mo om me en nt tu um m- -C CV V0 03 3& &C CV V0 04 4
Momentum is part of the LocoMotion™ System. Acceleration is controlled by
CV03 and deceleration by CV04. Both come from the factory set to 000/x00. A
range of 000/x00/ to 031/x1F is available for both accel and decel. We recom-
mend that you try CV03:003/x03 and CV04:000/x00 as a starting point for
experimenting with momentum.
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©2006 Digitrax, Inc www.digitrax.com 5
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With Digitrax LocoMotion™, there are two types of speed tables: 3 Step
Tables and High Resolution 28 Step Tables. Please see your Digitrax Decoder
Manual for a discussion of the 28 Step Tables. The 3 Step Tables are set up by
programming 3 CVs: Start Voltage (CV02), Mid point Voltage (CV06) and
Max Voltage (CV05). These values are set at 000/x00 at the factory. All have a
range of values from 000/x00 to 255/xFF. We recommend the following CV
values as a starting point for experimenting with speed tables in the MicroTrain
FT locomotive.
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Tr ra av ve el l& &S Sc ca al le ea ab bl le eS Sp pe ee ed dS St ta ab bi il li iz za at ti io on n( (B Ba ac ck kE EM MF F) )F Fe ea at tu ur re es s
Switching speed is controlled by CV54. The factory setting is 000/x00 for
OFF. To turn on the switching speed feature, program CV54 to a value of
001/x01. When this feature is on, use F6 to activate and deactivate switching
speed. When switching speed is ON and F6 is ON, the switching speed feature
is on. With the feature ON, the throttle’s target speed is effectively reduced by
about 50% and the effects of accel and decel programmed into the decoder are
reduced by 1/4. This is useful for yard switching operations.
Normal Direction of Travel is controlled by CV29. See your decoder manual
for additional information on the settings for CV29.
The intensity, or droop, of Scaleable Speed Stabilization (Back EMF) is con-
trolled by CV57. The factory setting for this feature is 006/x06 which is suit-
able for most locos. You can adjust this value in the range of 000/x00 for OFF
to 015/x0F for the maximum effect. Consult your Digitrax Decoder Manual for
info about CVs 55 & 56 and their effects on scaleable speed stabilization. The
factory setting for both CV55 & CV56 is 000/x00.
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Loco Type V Start V Mid V Max
CV02 CV06 CV05
Switcher
Concentrated low speed. Limited top 002/x02 038/x26 064/x50
speed
Road Switcher
Prototypical top speed w/evenly 002/x02 048/x30 098/x62
distributed curve from 0 to top speed
Mainline Loco
Quick increase to cruising speed then 002/x02 128/x80 154/x9A
levels off to prototypical top speed.

©2006 Digitrax, Inc www.digitrax.com 6
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The factory settings in the decoder provide silent, smooth operation of your
locomotive under most conditions. For more information about these settings,
please see the Digitrax Decoder Manual or our website.
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Digitrax Transponding is controlled by CV61. The initial factory set value is
000/x00 for OFF. To turn on transponding, program CV61 to a value of
002/x02. This allows you to use Digitrax transponding to keep track of your
rolling stock. When transponding is enabled, the front light of the locomotive
will flicker slightly to indicate transponding signal is being communicated. For
optimal transponding operation, we recommend that you hook up the forward
and rear lights as shown above.
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De ec co od de er rR Re es se et tC CV V0 08 8
Decoder reset lets you reset all CV values to the initial factory settings. To
reset all CV values, program CV08 to a value of 008/x08. You also have the
option of resetting all values except the 28 speed step tables. To do this,
program CV08 to a value of 009/x09.
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Each of the six function outputs can be programmed to turn on and off with the
F0 ON/OFF key on your throttle, creating a Master Light Switch. The CV
values for creating this effect are listed in the Digitrax Decoder Manual in the
section: Setting up FX & FX3Effects On Function Outputs.
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Function remapping allows you to program the function outputs of your
decoder to be controlled by selected function keys on your throttle. Please
consult the Digitrax Decoder Manual or website for information on function
remapping.
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Wa ar rr ra an nt ty y& &R Re ep pa ai ir r
All warranties on Digitrax products are limited to refund of purchase price,
repair or replacement at Digitrax’s sole discretion. Except as expressly stated in
the full warranty statement, there are no warranties, express or implied, includ-
ing but not limited to any warranties of merchantability or fitness for a particu-
lar purpose. For complete warranty details see www.digitrax.com.
Damaged decoders should be returned directly to Digitrax for repair.
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©2006 Digitrax, Inc www.digitrax.com 7
Caution: To prevent damage to your decoder and locomotive, track voltage
used during operation must not exceed the operating parameters of the
locomotive and its lighting system in which the decoder is installed (typi-
cally this is 12V DC). For most N scale layouts, Digitrax recommends using
14 volts DCC or less for operation to avoid damage to the locomotive shell,
lamps and decoder.
Digitrax, Inc. is not responsible for unintentional
errors or omissions in this document.
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Made in U.S.A.
307-DZ123M0 1K/09/06
450 Cemetery Street
Norcross, GA USA 30071
www.digitrax.com
T770-441-7992
F770-441-0759
E[email protected]
DZ123M0
Fits MicroTrains GP-35 Locomotive