SoundTraxx Blunami BLU-2200 User manual

Rev. B 02/11/23
Blunami™Digital Sound Decoder
Electric User’s Guide
Software Release 1.0

Notice
The information in this document is subject to change without notice.
SoundTraxx (Throttle Up! Corp.) shall not be liable for technical or editorial errors or omissions contained
herein, nor for incidental or consequential damage resulting from the furnishing, performance or use of
this material.
This document contains information protected by copyright. No part of this document may be photocopied
or reproduced in any form without the prior written consent of Throttle Up! Corp.
Product names mentioned herein may be trademarks and/or registered trademarks of their respective
companies.
SoundTraxx, Econami, Tsunami, Tsunami2, Blunami, SoundTraxx DCC, Dynamic Digital Exhaust, Auto-
Exhaust, Hyperlight, Hyperdrive2, SoundCar, CurrentKeeper and Intelligent Consisting are trademarks of
Throttle Up! Corp.

Contents
All Aboard!..................................................................................... 4
Overview .............................................................................................................. 4
Using Blunami ...................................................................................................... 5
CV Programming Tutorial ................................................................................... 10
Introduction to Programming .............................................................................. 13
Basic Programming ..................................................................... 17
Configuring the Address ..................................................................................... 17
Configuring the Decoder..................................................................................... 18
Configuring Throttle and Braking........................................................................ 20
Configuring Lighting Outputs .............................................................................. 26
Configuring Sound Effects.................................................................................. 31
Advanced Programming .............................................................. 42
Configuring Audio Control .................................................................................. 42
Configuring Dynamic Digital Exhaust ................................................................. 48
Configuring Function Mapping............................................................................ 51
Configuring Hyperdrive2..................................................................................... 57
Configuring Advanced Consist Operation........................................................... 61
Miscellaneous Features ............................................................... 64
Configuring Analog Mode Operation .................................................................. 64
Operating With a CurrentKeeper™..................................................................... 67
Troubleshooting .......................................................................... 68
Sorting Out Decoder Difficulties.......................................................................... 68
Appendix A: Decimal-Hex-Binary Conversions ............................ 71
Appendix B: Elecric CV Reference................................................ 72
Appendix C: License Agreement .................................................. 73
Appendix D: Service and Warranty Policy.................................... 74
Appendix E: Declaration of Conformity........................................ 75

All Aboard!
Blunami Electric User’s Guide 4
All Aboard!
Overview
Congratulations on purchasing your SoundTraxx Blunami Digital Sound Decoder (DSD) for
electric locomotives and trolleys! Blunami is the newest wave of SoundTraxx innovation and
builds upon the previous generation of Tsunami2 to offer the highest quality sound for model
railroading. This user’s guide shows you how to operate Blunami and customize each decoder
setting to fit your preferences, while providing some helpful troubleshooting tips along the way.
We suggest referring to the user documents listed below as you read this user’s guide.
Blunami Installation Guide
Provides instructions and strategies for
successful sound installations.
Blunami Electric Technical Reference
Offers a list of all included CVs and details
making adjustments to settings.
Blunami Sound Selection References
Lists each included sound effect for configuring
a prototypical operating experience.
Decoder Selector
Assists in selecting the correct decoder and
speaker for many models in all scales.
Videos Page
Provides instructional videos and product
demonstrations.
Electric Sound Samples
Offers sound file previews of trolley, heavy
electric locomotives and airhorn selections.
Reference Documents
Includes helpful information such a glossary
terms and specific installation information.
Technical Notes
Provides notes about wiring practices and DCC
compliance tests.
CurrentKeeper Reference
Includes supplemental information about
operating and programming with this device.
Factory Installed Decoders
Visit this page for specific CV values and
feature information for factory installed models.
These resources can be viewed and downloaded from our website at www.soundtraxx.com.

All Aboard!
Blunami Electric User’s Guide 5
Using Blunami
The Blunami Digital Sound Decoder is designed to enhance your model railroading experience
by giving you a wide variety of innovative features and incredibly realistic sound for your
models. Some of the features discussed in this user’s guide include Dynamic Digital Exhaust for
electric locomotives, Hyperdrive2 advanced motor control, Flex-Map function mapping
technology, two volume mixers, independent and train brake functions and Motorman Omura
sound effects. Blunami also provides selectable airhorns, bells, air compressors, couplers, and
traction motor effects to allow more versatility in creating your ideal model railroading
experience.
You can start using Blunami right out of the package without making any adjustments. However,
you may adjust settings at any time by making changes to Configuration Variables (CVs). Most
DCC decoder and command station manuals call this “programming”, though this is misleading
and sounds scarier than it is. At no point are you required to learn programming! This user’s
guide will walk you through operating and adjusting Blunami to its full capacity.
Default Function Assignments
The first time you operate your Blunami decoder,
you will be able to activate features and sound
effects by simply pressing the appropriate key on
your cab or command station console. These are
“default” function assignments. The effects listed
in Table A are assigned to function keys F0-F28
by default. This section describes how to activate
each effect with function keys.
Note: You can assign any effect to function keys
labeled as “Not Assigned” in Table A. with Flex-
Map function mapping CVs. Refer to
“Configuring Function Mapping” for more
information about customizing function
assignments.
Note: Pressing function keys F0-F28 will toggle
functions “on” and “off” and activate effects.
Turn On the Lights
Ensure your locomotive is in the forward
direction, then turn on F0 to illuminate the
headlight. Reverse the locomotive direction to
turn off the headlight and turn on the backup
light. Pressing F0 a second time will turn off the
headlight and backup light outputs.
Turn on F7 to dim the headlight or backup light
before passing oncoming trains, or while waiting
on a siding. Press F7 again to return the
headlight and backup light outputs to full
brightness.
Table A. Default Functions
Function Key Effect
F0(f)
Headlight
F0(r)
Backup Light
F1
Bell
F2
Airhorn
F3
Short Airhorn
F4
Pantograph Extend, Retract
F5
Stop Request Bell
F6
Pneumatic Doors
F7
Dimmer
F8
Mute
F9
Grade-Crossing Signal
F10
Not Assigned
F11
Independent/Train Brake
F12
Brake Select
F13
Couple/Uncouple
F14
Switching Mode
F15
Handbrake
F16
Not Assigned
F17
Not Assigned
F18
General Service
F19
Not Assigned
F20
Steam Generator
F21
Sander Valve
F22
Cab Chatter
F23
All Aboard/Coach Doors
F24
FX3 Function Output
F25
FX4 Function Output
F26
FX5 Function Output
F27
FX6 Function Output
F28
FX7 & FX8 Function Output

All Aboard!
Blunami Electric User’s Guide 6
Ring the Bell
Turn on F1 to ring the bell. Press F1 again to stop ringing the bell. The bell is generally rung
before moving the locomotive, when approaching crossings, to alert people or equipment near
the track, and as a warning signal when necessary.
Blow the Airhorn
Signaling can make your operating sessions more fun! Engineers signal to notify passengers,
crew, and other trains of common locomotive movements, such as stopping, moving forward,
backing up, and approaching grade crossings. Blunami provides three functions for signaling.
Use F2, F3, and F9 to signal prototypically while you operate, as described below.
Press and release F2 to blow the “long” airhorn. Contrary to most function keys, the duration of
the airhorn blast is determined by how long you press F2. In other words, the airhorn blast will
start when you press F2, and stop when you release F2. Press F3 to issue the single “toot” of
the “short” airhorn. The short airhorn will be the same length every time you press F3, unlike the
long airhorn.
Note: Function key F2 on the NCE Power Cab command station is on/off or “latching”, i.e.,
pressing F2 to turn on the function will start the airhorn blast, and pressing F2 again to turn off
the function will stop the airhorn blast. To issue momentary airhorn blasts with the NCE Power
Cab, press and release the “Horn/Whistle” button instead of using F2.
To issue the long-long-short-long grade-crossing signal automatically, turn on F9 as your
locomotive approaches a grade crossing. Refer to Table B to view some more common signals.
Table B. Whistle Signals
Long = –
Short = ●
Signal Description
– – ●–
Approaching a grade crossing: hold final blast until crossing is occupied
●
Applying brakes
– –
Releasing brakes, proceeding forward
● ● ●
When moving, stop; when stopped, back up
● ● ● ●
Request signal from trainman
– ● ● ●
Signal flagman to protect rear
– ●
Warning signal: use when approaching areas with obstructed views and when
approaching/passing passenger/freight trains
–
Approaching stations, junctions, and railroad crossings at grades
Extend and Retract the Pantograph
The pantograph mounted on the roof of an electric train extends to collect power from an
overhead catenary wire. The spring-loaded extension pushes a contact shoe up against the
underside of the overhead wire to draw electricity and deliver it to the rails.
With the throttle set to zero, turn on F4 to extend the pantograph and deliver power to the
locomotive. When the pantograph function is turned on during operation, you will hear the
contactor camshaft changing position, the generator running, the air compressor building and
releasing pressure, the poppet valve popping off, and the blower fans blustering. These sound
effects are active during operation to indicate power has been received and distributed from the
overhead wire.

All Aboard!
Blunami Electric User’s Guide 7
Decrease the throttle and bring your locomotive to a stop. Then turn off F4 to retract the
pantograph and mute the automatic sound effects. Keep in mind that, in reality, an electric train
cannot move when disconnected from the overhead wire. Refer to “Modifying Sound Effects” for
more information regarding the interlock feature.
Ring the Stop Request Bell
Turn on F5 to ring the stop request bell before stopping at the station.
Open and Close Doors
Turn on F6 to open the pneumatic doors while your train is stopped at the station. Before
departing, turn off F6 to close the doors.
Ring the Trolley Bell
Turn on F10 to issue the single “ding!” of the trolley bell. When the trolley begins to move
forward, ring the trolley bell twice by pressing F10 twice. When the trolley begins to move in the
reverse direction, ring the trolley bell three times. Configure automatic trolley bell signals with
SoundTraxx’ Flex-Map technology. Refer to “Configuring Function Mapping” for more
information.
Apply the Independent Brake
The engineer generally applies the brakes on the locomotive during switching operations and to
control slack between units. You can use the independent brake function to simulate applying
the locomotive brake independently from the rest of the train.
You can simulate applying the independent brake prototypically by turning on F11 as your
locomotive decelerates to a stop. Press F11 again to release the independent brake before
departing. Refer to “Configuring Throttle and Braking” to set the independent brake rate and
allow the independent brake function to reduce speed when activated.
Apply the Train Brake
On the prototype, air hoses are fastened to each piece of equipment to form a single braking
system, referred to as the “train brake” or “automatic brake.” The train brake function allows you
to simulate applying each unit’s brake at once to reduce train speed.
First turn on F12 to select the train brake in place of the independent brake. The air compressor
will cycle on to simulate charging the train line, and indicate that the train brake is selected.
Next, turn on F11 to simulate applying the train brake. Turning off F11 will release the train
brakes and cycle the air compressor to recharge the train line.
You can use F11 to activate the train brake only when the F12 brake select function is turned
on. Turn off F12 to reselect the independent brake for F11 and disable the train brake. Refer to
“Configuring Throttle and Braking” to set the train brake rate and allow the train brake function to
reduce speed when activated.
Mute Sound Effects
Turn on F8 to mute all sound effects when you need to silence your train. The mute function
allows a quick way to turn off sound effects for a phone call, for instance. Press F8 again to
return all sound effect volume levels to their prior settings.
Couple and Uncouple
Turn on F13 to engage the sound of the coupler as you add cars to your train. When you
uncouple, press F13 a second time to open the knuckle and separate the glad hands.

All Aboard!
Blunami Electric User’s Guide 8
Use Switching Mode
To improve throttle control for switching operations, turn on F14 to override all momentum CVs
and reduce the current throttle setting by 50%. Press F14 again to reset locomotive speed to the
prior speed step and reactivate all momentum CV settings. For more information about
momentum CVs, refer to “Configuring Throttle and Braking.”
Tie Down the Handbrake
Similar to you automobile, prototype locomotive use a manually applied handbrake to keep
them from rolling away when parked. Turn on F15 while your locomotive is stopped to set the
handbrake. Press F15 again to release the handbrake before moving.
Perform General Service
While your locomotive is stopped, turn on F18 to inspect the engine and perform general
service. After the cab door opens, Motorman Omura tightens nuts and bolts with his wrench and
uses his hammer to check the frame as needed. Press F18 again before departing to stop
performing general service and close the cab door.
Turn on the Steam Generator
Turn on F20 to stimulate the steam generator passing steam throughout the length of the train
from the feedwater supply tank. Steam generators are generally used to heat drinking water and
provide climate control to passenger cars. Press F20 again to turn the steam generator off.
Open the Sander Valve
In the real world, wet rails can cause wheels to slip. When extra traction is needed, turn on F21
to open the sander valve. You will hear the quiet sound of sand being deposited onto the rails.
Press F21 again to close the sander valve.
Listen to Cab Chatter
Turn on F22 to hear railroad radio transmissions being exchanged from inside the cab. The
radio will play messages at random while F22 is turned on. Press F22 again to turn off the
function and mute the radio.
Announce “All Aboard!”
Turn on F23 before leaving the station to issue the conductor’s “all aboard!” announcement.
After the coach doors slam shut, increase the throttle and depart the station.
Turn On FX3-FX8 Lighting
If you have additional lights wired to the FX3-FX8 function outputs, use function keys F24-F28
to activate them. Depending on board format, Blunami offers up to eight lighting outputs to
support Hyperlight effects. To select Hyperlight effects for lighting outputs, refer to “Configuring
Lighting Outputs.”
Make an Emergency Stop
Press the emergency stop button to issue the emergency brake application and bring your train
to an immediate stop.

All Aboard!
Blunami Electric User’s Guide 9
Automatic Sound Effects
Blunami plays a variety sound effects automatically. Automatic sound effects respond
prototypically to aspects of operation, such as certain functions, speed settings, and motor load
changes.
Traction Motors
With the pantograph extended, the whine of the tractions motors is automatically adjusted by
auto-notching and Dynamic Digital Exhaust as you operate. Refer to “Configuring the Decoder,”
“Configuring Sound Effects,” and “Configuring Dynamic Digital Exhaust” to modify automatic
traction motor sound effects.
Contactor Camshaft
The contactor camshaft will change its position at fixed speed points when the pantograph is
extended. Retract the pantograph to mute the contactor camshaft.
Generator
The electrical generator will produces energy when the pantograph is extended. Retract the
pantograph to mute the generator.
Air Compressor
The air compressor maintains air pressure during operation. It will cycle to charge the train line
when F12 is turned on and off. It will also operate for a longer period of time when the coupler
function is turned on and every third time the independent brake is applied.
Poppet Valve or Air Dryer
The “pop!” of the poppet valve is active in the background when the pantograph is extended.
Retract the pantograph to mute the poppet valve. Refer to “Configuring Sound Effects” to adjust
the poppet valve release rate.
Blower Fans
The blower fans will engage and play continuously when the pantograph is extended. Retract
the pantograph to mute the blower fans.
Clickety-Clack
The “clickety-clack” of the locomotive running across rail joints is synchronized in proportion to
locomotive speed. To adjust the clickety-clack sound effect, refer to “Configuring Sound
Effects.”
Electrical Arcing
The occasional “Zap!” of the pantograph loosing contact with the overheard wire can be heard
when operating the locomotive above speed step 10 in 128 speed step mode. The pantograph
must be extended to hear this sound effect.
Motorman Omura
Each time the engine is brought to a stop, Motorman Omura may attend to a randomly selected
task (or tasks), including tightening nuts and bolts, checking the frame and more.

All Aboard!
Blunami Electric User’s Guide 10
CV Programming Tutorial
What is a CV? Configuration Variable (CV) is the industry-adopted term for a decoder’s
user-adjustable memory locations. CVs allow you to adjust various decoder properties and
customize your operating experience. The address, audio settings, motor control, lighting
effects, and function assignments are just some of the properties you can adjust with CVs. You
can modify CVs at any time and the decoder will save your settings even when the power is
turned off. If reading about CV programming already has your head spinning, this tutorial will
help you understand how CVs work.
At first glance, you may feel overwhelmed by the large number of CVs offered by Blunami. Don’t
worry! You don’t need an engineering degree to customize your decoder’s settings. As you have
already seen, the decoder has been shipped with all CVs pre-programmed so you can begin
using your locomotive immediately without having to worry about what adjustments to make.
Making adjustments is easy, and you can customize settings one CV at a time. As you become
comfortable with its operation, move onto a new section and begin exploring the options and
capabilities found there. Detailed information on any CV can be found in the Blunami Electric
Technical Reference. When in doubt, you can always reset the decoder to factory defaults.
Refer to “Resetting CVs (Starting Over)” for more information.
Bits and Bytes
All the bits, bytes, and other symbols used in decoder manuals as well as differences between
command stations can make CV programming difficult to understand. The problem is
compounded further by differences in each command station manufacturer’s user interface. Put
simply, each CV contains a value that can be changed, and changing the value of a CV will
modify a specific decoder setting. Each CV is made up of one byte (i.e., eight bits). However,
knowing a little more about how CV values are represented will help you make the right
adjustments. CV values are commonly represented in the two numeric formats listed below.
Binary
Like computers, binary is the numbering system used in all DCC decoders. Binary units are
called “bits” and can be represented as either 0 or 1.
Decimal
Decimal representation is the format you will probably use most often. Each CV contains a
decimal value from 0 to 255.
We have tried to use the decimal number system in this manual when describing the proper
values to program into a given CV; however, you will occasionally find values listed in the
Technical Reference in both binary and decimal forms. For those more familiar with the binary
method of programming, we have provided a handy-dandy conversion table in Appendix A that
allows one to quickly convert between decimal, binary and hex (for some older command
stations).
Programming by the Bits
Most CVs contain a single piece of data which can be represented in decimal or binary. For
example, CV 128 (Master Volume) can be loaded with any value from 0 to 255 and it will always
and only affect one thing – the overall volume of the decoder.
This user’s guide represents CV values in decimal form to expedite programming. However, binary is
occasionally used to represent CV values in the Blunami Electric Technical Some CVs use individual
bits to control multiple features. This allows up to 8 distinct features to be controlled by a single

All Aboard!
Blunami Electric User’s Guide 11
CV. As the bit variables can take on only one of two values (0 or 1), they are usually used to
control features that are either OFF or ON (i.e., disabled or enabled).
Tip: Think of bits as light switches to turn ON or OFF various features.
Each bit (0-7) carries a “weight” within the structure of a CV. Beginning with a bit weight of 1 for
bit 0 (located farthest to the right, as CVs are interpreted from right to left) and doubling in value
for each successive bit (i.e., bit 0 = 1, bit 1 = 2, bit 2 = 4, bit 3 = 8, bit 4 = 16, bit 5 = 32, bit 6 =
64., and bit 7 = 128). The sum, or total, of these bit weights represents the value entered into
the CV for programming.
Note: An alternative method to using basic addition would be to compare the bit structure (1s
and 0s) to the table located in Appendix A. In this example we would locate the binary value
00100010 and use the decimal or hex value found next to it when programming the CV.
CV Programming Tool
To make the process of calculating CV values as easy as possible, we’ve included an
interactive CV programming tool with this manual. This tool will calculate the value to be
programmed into any CV based upon the individual bits that have been turned ON or OFF. We
recommend using this tool along with the bit configuration charts found in the Tsuanmi2 Electric
Technical Reference as a guide for programming.
If viewing this document digitally (i.e. computer, tablet or smart phone) you may simply enter a
“1” or “0” into any of the bit fields below. The CV value will automatically be calculated based on
which bits are turned on.
If referencing this manual in print form, write the 1s and 0s in the bit boxes and use the
associated bit weights as a way to manually calculate the value, similar to the example
referenced below.
BIT POSITION
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
CV VALUE
ON/OFF
______
______
______
______
______
______
______
______
________
BIT WEIGHT
128
64
32
16
8
4
2
1
0

All Aboard!
Blunami Electric User’s Guide 12
Example
Let’s assume we would like to set CV 29 (Configuration Data 1) so that 28/128 speed-step
mode and extended (long) addressing are enabled. We would use the following steps to
calculate the value:
1. To configure these features we see that bit 1 (F0) and bit 5 (EAM) should both be ON
(set to 1), with all other bits OFF (set to 0). The bits to be enabled are highlighted in the
description.
Bit 7
Bit 0
EAM STE APS F0 DIR
DIR: Direction
0 = Normal direction
1 = Inverted direction
F0: F0 Location
0 = 14 speed-step mode enabled
1 = 28/128 speed-step mode enabled
APS: Alternate Power Source Enable
0 = NMRA-digital only
1 = Alternate power source enabled (CV 12)
STE: Speed Table Enable
0 = 3-point speed table enabled (CVs 2, 5 & 6)
1 = Linear/28-point speed table (CV 25)
EAM:Extended Address Mode Enable
0 = Primary address enabled (CV 1)
1 = Extended address enabled (CVs 17-18)
2. Write down the individual bit states (1 for ON and 0 for OFF) as shown below:
3. Next, determine the weight for each enabled bit. For this example are weights are 2 and
32.
4. Add all bit weights to obtain the value for the CV. Bit weights are only counted when the
bit is ON (set to 1). If the bit is OFF (set to 0), do not add that bit weight to the total. Add
32 and 2 together to obtain the value of 34 for CV 29.
5. Using your command station enter a value of 34 into CV 29 for programming.

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Blunami Electric User’s Guide 13
Introduction to Programming
This section details CV programming modes, reading CVs,
accessing indexed CVs, resetting CVs to factory defaults,
and locking and unlocking CVs. Due to the varying CV
programming methods used by DCC systems, we cannot
provide comprehensive instructions that address every
command station and must assume you understand the
capabilities of your system on some level. Consult your
DCC system manual or contact the manufacturer if you
need more detailed programming instructions.
Programming Modes
Blunami supports Operations Mode and Service Mode programming.
Operations Mode
Referred to as “Ops Mode” or “programming on the main,” Operations Mode allows you to
program CVs during operation even when other locomotives and rolling stock are present.
Being able to program during operation simplifies re-creating prototypical scenarios. For
example, you can increase the momentum of a locomotive after it couples to a train. However,
because data cannot be read back from the decoder, programming on the main will not allow
you to verify CV values.
Service Mode
Service Mode programming usually requires connecting the model to a dedicated programmer
or placing it on a separate programming track. Blunami supports four types of Service Mode
instructions:
Address Mode: CV 1 may be modified
Register Mode: CVs 1, 2, 3, 4, 7, 8, and 29 may be modified
Paged Mode: A page register is used to modify any CV indirectly
Direct Mode: All CVs may be directly modified
Reading CVs
Some command stations permit you to read the value of a CV and verify its setting in Service
Mode programming. If you have trouble reading or verifying CVs, there may be a problem within
the command station’s design rather than with the decoder.
Try another programming mode if you experience difficulties programming or reading CVs.
Many of the newer DCC systems automatically select the appropriate programming mode and
only require you to enter the CV number and desired value. However, some DCC systems may
restrict the number of available CVs. If you’re having difficulty determining the programming
modes supported by your DCC system, refer to the manual or contact the manufacturer.
Note: Blunami does not require a programming track booster, such as the PTB-100.
Configuration Variable Control CVs
CV 8: Manufacturer ID
CV 15: CV Unlock Code
CV 16: CV Lock ID
CV 30: Error Information
CV 31: CV Index 1
CV 32: CV Index 2
CVs 1.257-1.512: Indexed CV Page 1
CVs 2.257-2.512: Indexed CV Page 2

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Blunami Electric User’s Guide 14
Indexed CVs
The term “indexed CVs” tends to cause confusion and consternation. Simply put, indexed CVs
are located on ‘pages’ to help manage the total number of CVs. This is required by the NMRA
DCC Standard and works like this:
Indexed CVs are accessed with the use of two CVs: CV 31 enables indexing when set to a
value of 16 (the default value) and CV 32 selects the desired indexed page. You do not need to
type “1.” Into the command station when programming indexed CVs.
Because of the number of features and options contained within Blunami decoders, three pages
of indexed CVs are provided:
To access CVs 1.257-1.512:
1. Ensure CV 31 is set to a value of 16.
2. Enter a value of 1 into CV 32 to select Indexed CV Page 1.
3. Select CVs 257-512 from your command station.
To access CVs 2.257-2.512:
1. Ensure CV 31 is set to a value of 16.
2. Enter a value of 2 into CV 32 to select Indexed CV Page 2.
3. Select CVs 257-512 from your command station.
To access CVs 3.257-3.512:
1. Ensure CV 31 is set to a value of 16.
2. Enter a value of 3 into CV 32 to select Indexed CV Page 3.
3. Select CVs 257-512 from your command station.
To make things easier, Blunami CVs are grouped by like function as follows:
CVs 1.257-1.512 are used for configuring Flex-Map function mapping CVs. CVs 1.257-1.384
are used for function mapping CVs and CVs 1.385-1.512 are used for automatic effect
configuration. Refer to “Configuring Function Mapping” for more information.
CVs 2.257-2.512 are used for adjusting alternate mixer channel volume levels and configuring
Dynamic Digital Exhaust CVs. CVs 2.289-2.320 are for alternate mixer CVs and CVs 2.503-
2.512 for DDE control CVs. Refer to “Configuring Throttle and Braking,” “Configuring Sound
Effects” and “Configuring Dynamic Digital Exhaust” for more information.
CVs 3.257-3.512 are used for adjusting the clickety-clack rate of the clickety-clack and rail joints
sound effects. Refer to “Configuring Sound Effects” for more information.

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Blunami Electric User’s Guide 15
Resetting CVs (Starting Over)
Occasionally, a programming error may occur and the decoder might not respond as you
would’ve expected. Usually, this is caused by one or more CVs inadvertently being programmed
to the wrong value. The CVs can be quickly reset to their factory default values. Follow the
steps below to perform either a full or partial CV reset:
1. Turn on track power to the decoder. If you have a SoundTraxx CurrentKeeper™or
another device that maintains power, allow at least two minutes for charging before
programming.
2. Enter one of the following values into CV 8 (Manufacturer ID) to perform a full or partial
CV reset:
CV 8: Manufacturer ID
8
= Reset All CVs
9
= Reset CVs 1-128
10
= Reset CVs 129-256
11
= Reset CVs 1.257-1.512
12
= Reset CVs 2.257-2.512
13
= Reset CVs 3.257-3.512
3. Turn off track power to the decoder. Wait 5 seconds then return power to the decoder. If
you have installed a SoundTraxx CurrentKeeper or another device that maintains track
power, ensure that the device is fully discharged (usually about 3-4 minutes) before
returning power.
4. Wait about 10 seconds after returning power to the decoder. All lights (headlight, backup
light or effect lights), as well as the decoder’s error light, will flash 16 times to indicate
CVs have been successfully reset. Blunami will respond to primary address 3 after all
CVs, or CVs 1-128 have been reset.
Note: Continue cycling power to the decoder if the CV reset is unsuccessful. If you are unable
to reset CV values, continue to “Locking and Unlocking CVs” to verify the decoder is not locked.
Locking and Unlocking CVs
The CV lock/unlock feature is designed to secure the decoder and
prevent the inadvertent programming of CVs. For example, if you
have installed a function decoder in addition to the sound decoder,
you may wish to lock the CVs in one decoder while programming
the other.
To use the CV lock feature implemented in CVs 15 and 16, bit 0 of CV 30 must first be set to 1
(the default value is 0). This is to avoid accidently locking the decoder when the CV lock feature
is not needed.
CV 15 is the unlock code and may be programmed to any value from 0 to 255 regardless of
whether the decoder is locked or unlocked. CV 16 is the lock code and may be set to any value
from 0 to 7. CV 16 can only be programmed when the decoder is unlocked. Attempts to
program CV 16 with a value greater than 7 will be ignored.
The decoder is unlocked when the value in CV 15 matches the value in CV 16. Otherwise the
decoder is locked and cannot be programmed in either Operations Mode or Service Mode.
Further, a locked decoder cannot be reset to its factory defaults until it is unlocked. Blunami
decoders are shipped from the factory with all CVs unlocked, that is, CV 15 and 16 are both set
to 0.
Locking and Unlocking CVs
CV 15: CV Unlock Code
CV 16: CV Lock ID
CV 30: Error Information

All Aboard!
Blunami Electric User’s Guide 16
If the decoder is unlocked, changing the value in CV 16 will instantly lock the decoder. You must
then set CV 15 to the same value as was just programmed into CV 16 to unlock the decoder
again. If you use the CV locking feature for a multi-decoder installation in one model, each
decoder must first have its lock code set prior to the installation of any other decoders. First
install one decoder and program its lock code. Then install the next decoder and program its
lock code. Since the first decoder is now locked, it will be unaffected by the programming of the
second decoder. If you accidentally set the lock code of the two decoders to the same value you
will need to disconnect one decoder and start over. Continue in this manner until all decoders
have been installed and their lock codes have been set.
Follow the steps below to lock and unlock CVs:
1. Enter a value of 1 into CV 30 (Error Information) to enable the CV lock/unlock feature.
2. Enter a value from 0 to 7 into CV 16 to set the lock code.
3. To unlock CVs, set CV 15 to the same value as CV 16.
4. To lock CVs, set CV 15 to a different value than CV 16 to unlock CVs.
It is a good idea to set up a standardized system so you don’t forget the lock code settings. You
might, for example, set all motor decoders to a CV lock code of 1, sound decoders to a lock
code of 2, and function decoders to a lock code of 3. Keeping CV 15 set to 0 will guarantee the
decoder stays locked until you are ready to begin programming.
If You Forget the Lock Code
As there are only eight possible combinations, you can easily determine a forgotten lock code
using trial and error with the following procedure:
1. Place the model on the programming track and enter a value of 0 into CV 15.
2. Try reading the value of CV 16. If the value is not read back, CVs are locked.
3. Enter a value of 1 into CV 15 and try reading the value of CV 16 again.
4. If the value is not read back, enter a value of 2 into CV 15 and try again.
5. Enter values 3-7 into CV 15 until the value of CV 16 is read back and CVs are unlocked.
If you still can’t identify the lock code, there may be a problem with the installation, programming
track, or decoder. Contact SoundTraxx Customer Support if this occurs.
If you do not have access to a programming track with read-back capabilities (or are uncertain
as to whether it is working properly), you can also use Operations Mode to discover the lock
code by alternately programming CV 15 and setting another CV to a value where there is a
known response. For example, changing CV 128 (Master Volume Control) will provide auditory
feedback as to whether the decoder is unlocked by virtue of a change in sound level. Thus, you
would begin by setting CV 15 to 0 and then setting CV 128 to 0. If the volume does not reduce
to 0, the decoder is locked. Then set CV 15 to 1 and try programming CV 128 again. Repeat
this process until you find a value for CV 15 that results in a change in sound volume as you
change CV 128.
Troubleshooting Tip: If you are not using the CV Lock feature, it can be accidentally activated
by inadvertently programming CV 15 or 16 with a non-default value (if bit 0 in CV 30 = 1). If you
have a decoder that is otherwise working properly (i.e., making sound and responding to throttle
commands) but has suddenly stopped accepting CV changes, then first run through the
procedure under “If You Forget The Lock Code” to determine if the decoder has been locked.

Basic Programming
Blunami Electric User’s Guide 17
Basic Programming
Configuring the Address
Like all DCC decoders, Blunami responds to primary
address 3 right out of the package. Address control CVs
allow you to set primary and extended addresses or your
choice, which can be useful when matching the decoder’s
address with the number on the locomotive, for instance.
Since most command stations will guide you through the process simply follow their instructions
for programming your decoder address. We’ve included information about the CVs used to
configure your decoder’s address for those who have older command stations or models that
does not provide prompts for this process.
Setting Addresses
Blunami recognizes either the primary address (also known as the short address) in CV 1 or the
extended (long) address in CVs 17-18. Whether you use the primary or extended address will
first depend on whether or not your DCC system uses extended addressing (not all of them do,
so if in doubt, see your command station owner’s manual.) Second, it will depend on your
preferences and the numbering scheme you use for setting your decoder addresses. The
extended address has the advantage that you can use all four digits of a locomotive’s road
number for the decoder address making it easy to remember. Be aware that some DCC
systems do not support the full range of available addresses.
Programming Notes: You can set the primary and extended addresses in Service Mode (on
the programming track) at any time. Some DCC systems also allow you to set the address in
Operations Mode according to the following restrictions:
•If the decoder’s primary address is enabled (bit 5 of CV 29 set to 0), only the extended
address can be changed in Operations Mode.
•If the decoder’s extended address is enabled (bit 5 of CV 29 set to 1), only the primary
address can be changed in Operations Mode.
Primary Address
The Primary address is commonly referred to as the “short” or “2-digit” address. Enter a value
from 1 to 127 into CV 1 to set the primary address. All SoundTraxx decoders are set to primary
address 3 by default. When selecting the locomotive with your DCC throttle, only enter “3” into
the method used to select locomotives. Entering “03” or “0003” can inadvertently choose the
extended address, which is not configured as the decoder’s default address type.
Extended Address
Often referred to as the “long” or “4-digit” address, the extended address is actually made up of
two CVs, 17 and 18. Unless you are an experienced user, you should not try to program these
CVs individually as a specific protocol is required in order for the decoder to accept the new
data (see the Blunami Electric Technical Reference for details).
After setting the extended address, set bit 5 of CV 29 (Configuration Data 1) to 1 to enable its
usage. If bit 5 of CV 29 is set to 0, the decoder will continue to respond to the primary address.
Continue to “Configuring the Decoder” for more information about CV 29.
Address Control CVs
CV 1: Primary (“Short”) Address
CVs 17-18: Extended (“Long”) Address

Basic Programming
Blunami Electric User’s Guide 18
Configuring the Decoder
CV 29 controls a variety of important settings. It determines
locomotive direction, speed-step mode, alternate power source,
speed tables, and the decoder address.
Configuring CV 29
This is the first CV that you’ll encounter which will need to be programmed by the bits. Refer to
the “CV Programming Tutorial” for an interactive guide to programming multiple features in a
single CV.
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0 0 EAM STE 0 APS F0 DIR
DIR: Locomotive Direction
Bit 0 (DIR) is used to determine locomotive direction. Setting bit 0 to 1 will invert direction
commands, and the decoder will interpret forward as reverse, and reverse as forward. This
operating mode is most useful for setting up Electric engines that ran with the long hood section
forward. However, it is also useful for electronically correcting installations where the motor
wires were accidentally reversed and avoids dismantling the locomotive a second time.
F0: F0 Location (Speed-Step Mode Select)
Bit 1 (F0) is used to determine the number of speed steps within the throttle range. 14, 28, and
128 speed-step modes are available, and 28/128 speed-step mode has been enabled by
default. Select the highest number of speed steps supported by your command station for the
most refined throttle operation.
APS: Alternate Power Source (Analog Mode)
Setting bit 2 (APS) to 1 will allow the decoder to use an analog power source when a DCC
signal is not present. Entering a value of 1 into CV 12 (Alternate Power Source) will enable
analog mode (disabled by default). Refer to “Configuring for Analog Mode Operation” for more
information.
STE: Speed Table Enable
Setting bit 4 (STE) to 1 will select a linear or 28-point custom speed table in place of the 3-point
speed table. Refer to “Configuring Throttle and Braking” for more information.
EAM: Primary or Extended Address
Bit 5 (EAM) is used for selecting the active address. Setting bit 5 to 0 will enable the primary
address. Set the primary address with CV 1 (Primary Address). CVs 17 and 18 (Extended
Address) are used to set the extended address. Set bit 5 of CV 29 to 1 to enable the extended
address. Refer to the previous section, “Configuring the Address,” for more information about
setting the extended address.
Refer to Table C on the following page to view decimal values for CV 29.
Decoder Configuration CVs
CV 29: Configuration Data 1

Basic Programming
Blunami Electric User’s Guide 19
Table C. CV 29 Reference
Address Type Speed Table
Analog Mode
Speed Steps Direction CV Value
Primary “Short” (CV1) No No 14 Normal 0
Primary “Short” (CV1) No No 14 Reversed 1
Primary “Short” (CV1) No No 28/128 Normal 2
Primary “Short” (CV1) No No 28/128 Reversed 3
Primary “Short” (CV1) No Yes 14 Normal 4
Primary “Short” (CV1) No Yes 14 Reversed 5
Primary “Short” (CV1) No Yes 28/128 Normal 6
Primary “Short” (CV1) No Yes 28/128 Reversed 7
Primary “Short” (CV1) Yes No 14 Normal 16
Primary “Short” (CV1) Yes No 14 Reversed 17
Primary “Short” (CV1) Yes No 28/128 Normal 18
Primary “Short” (CV1) Yes No 28/128 Reversed 19
Primary “Short” (CV1) Yes Yes 14 Normal 20
Primary “Short” (CV1) Yes Yes 14 Reversed 21
Primary “Short” (CV1) Yes Yes 28/128 Normal 22
Primary “Short” (CV1) Yes Yes 28/128 Reversed 23
Extended “Long” (CV 17:18) No No 14 Normal 32
Extended “Long” (CV 17:18) No No 14 Reversed 33
Extended “Long” (CV 17:18) No No 28/128 Normal 34
Extended “Long” (CV 17:18) No No 28/128 Reversed 35
Extended “Long” (CV 17:18) No Yes 14 Normal 36
Extended “Long” (CV 17:18) No Yes 14 Reversed 37
Extended “Long” (CV 17:18) No Yes 28/128 Normal 38
Extended “Long” (CV 17:18) No Yes 28/128 Reversed 39
Extended “Long” (CV 17:18) Yes No 14 Normal 48
Extended “Long” (CV 17:18) Yes No 14 Reversed 49
Extended “Long” (CV 17:18) Yes No 28/128 Normal 50
Extended “Long” (CV 17:18) Yes No 28/128 Reversed 51
Extended “Long” (CV 17:18) Yes Yes 14 Normal 52
Extended “Long” (CV 17:18) Yes Yes 14 Reversed 53
Extended “Long” (CV 17:18) Yes Yes 28/128 Normal 54
Extended “Long” (CV 17:18) Yes Yes 28/128 Reversed 55
Note: Values in Table C are shown in decimal format. If your command station requires hex
inputs, you will need to convert. Refer to Appendix A for conversions.

Basic Programming
Blunami Electric User’s Guide 20
Configuring Throttle and Braking
You can use throttle and braking control CVs to customize
the decoder’s throttle and braking settings to your operating
preferences. This section details setting acceleration and
deceleration rates, automatically calibrating Dynamic Digital
Exhaust (DDE) load compensation, setting braking rates for
the independent and train brake functions, adjusting speed
table settings, and enabling motor trim scaling factors.
If this is overwhelming at first glance, don’t worry! You don’t
have to adjust all of the throttle control CVs. This section
guides you through adjusting the decoder’s throttle and
braking one group of CVs at a time to allow you to decide
what works best.
Setting the Start Voltage
Blunami provides CV 2 (Vstart) to set the starting voltage that is applied to the motor at Speed
Step 1, and is used to compensate for inefficiencies in the locomotive’s motor and
driveline. CV 2 may be programmed with any value between 0 and 255 with each step in value
being about 0.5% of the maximum available motor voltage. To calculate the value of CV 2, you
can use the formula:
Desired Starting Voltage
CV 2 = 255 x ——————————————
Maximum Motor Voltage
If your DCC system supports Operations Mode Programming, an alternative method for setting
Vstart is to turn your throttle to the first speed step and then use the operations mode
programming feature to increase the value in CV 2 until the locomotive just begins to move.
Setting Momentum Rates
Blunami provides two CVs to simulate the momentum due to train weight. CV 3 (Baseline
Acceleration Rate) controls how fast the locomotive responds to increases in throttle
settings. CV 4 (Baseline Deceleration Rate) controls how fast the locomotive will respond to
decreases in the throttle setting.
Both CVs can be programmed with any value from 0 to 255, with 255 corresponding to the
slowest acceleration or deceleration rate. Lower settings yield a more responsive locomotive,
which is useful for switching. When both CVs are set to 0, the locomotive will respond nearly
instantly to any throttle changes. A setting of 255, on the other hand, will require several
minutes for a locomotive to reach full speed from a standing stop. Setting acceleration and
deceleration rates can allow the speed of the locomotive to match the sound effects regulated
by Dynamic Digital Exhaust.
When using 14 or 28 speed-step mode, configuring acceleration and deceleration rates will
improve the decoder’s throttle response. This allows the locomotive to speed up and slow down
without lurching from one speed step to the next.
Throttle and Braking Control CVs
CV 2: Vstart
CV 3: Baseline Acceleration Rate
CV 4: Baseline Deceleration Rate
CV 5: Vhigh
CV 6: Vmid
CV 25: Speed Table Enable
CV 29: Configuration Data 1
CV 32: CV Index 2
CV 66: Forward Motor Trim
CVs 67-94: Custom Speed Table
CV 95: Reverse Motor Trim
CV 117: Independent Brake Rate
CV 118: Train Brake Rate
CV 2.503: DDE Load Offset
CV 2.504: DDE Load Slope
CV 2.512: DDE Load Sensitivity