2. Using the Sound Functions etc.
4. CV Notes
For more information visit:
www.hornby.com
•
Background and steam exhaust plus deceleration sounds are activated by F1
on the controller. Individual sounds can be played at any time without the
idle/steam exhaust/deceleration sounds being active. This is achieved by
activating the appropriate Function on the controller (F2-F16).
•
Some individual sounds play once for a short duration e.g. ‘whistles,’ while other
sounds play continuously until deactivated i.e. they are ‘Looped’ sounds.
•
Front and Rear Lights are activated by F0 on the controller. (Decoder
hardware function outputs 1 and 2.)
•
The Auxiliary Function output is activated by F18 on the controller. (Decoder
hardware function output 3.)
Any value less than the default of ‘15’ is likely to cause steam exhaust and
deceleration (coasting) sound playback to operate incorrectly.
For more information visit:
www.hornby.com
2 3
4 5
1. Introduction
Track Sound’
decoder” which offers adjustable motor control and a range of realistic sounds
including full acceleration/deceleration sounds, whistles and other appropriate
locomotive noises associated with the 2P Class locomotive.
This Hornby 2P Class Locomotive is fitted with a “Hornby Twin
•
Supports Short and Long decoder addresses.
•
Adjustable Acceleration and Deceleration.
•
Back EMF Load Compensation.
•
Two different selectable and fully adjustable motor control methods for optimal
motor control.
•
Two sound channels allowing for simultaneous play of full locomotive steam
exhaust sounds (chuff) and coasting, while using individual sounds e.g. Whistles,
Brakes, Coal Shovelling, Wheel Slip, Injectors, etc.
Main Features
CV3 and CV4 Acceleration and Deceleration
The supported functions are:
Please note the following CVs are subject to change.
Add the desired values for each function to obtain the needed value of CV29.
Example:
The default value for CV29 is 6, i.e. 28/128 Speed Steps + Enable
analogue operation = 2+4 = 6.
Read Only CVs that contain version information
If read, this CV will report the manufacturer’s ID for Hornby Hobbies 48.
Writing the value ‘8’ to CV8 will perform a ‘general reset’ of all CV variables
to factory default values.
The decoder also has a unique feature, i.e. writing the value ‘5’ to CV8 will
reset all sound volume levels to default levels, i.e. CV160 to CV177 will be
returned to default values. All other CV values (non-sound related) will be left as
programmed by the user.
CV8 Manufacturers ID and Reset
The decoder supports ‘load’ compensation. This is a feature that tries to
maintain a constant speed of the locomotive as the load on the motor changes,
i.e. when negotiating inclines and curves, etc.
This is achieved by monitoring the actual speed of the motor via the motors
BEMF (Back Electromotive Force) and comparing the voltage level detected to
the Speed Step command sent to the decoder. Speed Steps are in the value range
1-128. Using this CV allows a cut-off point to be set for the Speed Step value
where the BEMF load compensation action ceases to be applied.
Generally this value is left as default (128). In some rare cases adjustment of this
CV can assist smoothness of lower speed running.
Example:
If the CV is set to a value of 100, the load compensation will not be
applied above Speed Step 100.
CV10 Back EMF Cut-Off Point
Contents
1. Introduction
P2
2. Using the Sound Functions etc.
P3
3. Lighting Control
P3
4. CV Notes
P5
5. The Mixer Section
P7
6. Driving Hints and Tips
P8
7. Decoder Plug and Socket connections
P10
8. Troubleshooting
P11
Full CV Table
Ref
Function
Add this value to activate
function
Bit0
Default Direction Control
Add 1 to reverse direction
~ Normal or Reversed
Bit1
Speed Step Lighting Direction
Add 2 to use 28/128 mode
Command 14 or 28/128
Bit2
DCC Only or DCC and
Add 4 to enable both DC and
DC Running
DCC Running
Bit5
Long or Short Address
Add 32 if required to manually
control long address selection
CV7
Decoder Version number
CV158
Decoder Sound Version number
CVs... 2P Class Running Parameters and Decoder setup
CV Default Value
Description
Value Range
CV1
3
1-127
Short decoder address (1-127)
CV3
15
0-255
Acceleration
See CV Notes
CV4
15
0-255
Deceleration
CV7
4
Read only
Decoder Firmware Version
CV8
48 Read only** Manufacturer ID **(All Reset = 8)
(Sound Volume Reset Only = 5)
CV10
128
1-128
Back EMF cut off point
See CV Notes
CV17
192 192-231
Long address high byte
(128 - 10239)
CV18
100
0-255
Long address low byte
CV29
6
0-48
CV150
0
0-1
Motor algorithm 1 & 2
CV151
255
0-255
P1, parameter of Motor
algorithm 1
CV152
1
0-255
I1, parameter of Motor
See CV Notes
algorithm 1
CV153
215
0-255
P2, parameter of Motor
algorithm 2
CV154
115
0-255
I2, parameter of Motor
algorithm 2
CV158
010 Read only
Decoder Sound Version
CV159
143 Read only
Decoder Sound ID
CV201
25 70
Loco Start delay 0 = No delay
70 = 7 Seconds Delay
•
A total of 15 different ‘spot sounds’ in addition to the locomotive’s steam exhaust
and deceleration sounds are available. When the locomotive is stationary an
idle steam sound is played.
Note: Only one of the 15 individual ‘spot sounds’ may be played at a time.
•
When the locomotive is cruising at a constant speed there is a switchable
option
locomotive ‘Coasting’ under its own momentum, thus, giving added realism to
the sounds the locomotive makes in action. See driving tips for more details.
•
It is possible to alter the volume of each sound through an individual dedicated
CV. i.e. there is effectively a simple volume mixer on board the decoder. The
Volume may be adjusted in 9 steps, 0-8.
•
The decoder is equipped to support Front and Rear Light operation via F0 on
the controller providing the locomotive is equipped with lighting connected to
hardware function Channels 1 and 2 of the decoder.
•
The decoder is equipped with 1 Aux function output controlled by F18 on the
controller. (This is hardware function Channel 3 on the decoder.)
•
IMPORTANT. The decoder does not support sound under DC operation.
Sounds can only be played under DCC operation. This statement applies to all
sounds both running and individual.
See the Function List in Section 2 for a complete list of decoder features.
Sound Decoder Manual
Operation
Control Modes
DC and DCC.
(Sound only available in DCC mode. i.e.
no sound support under DC operation)
Electrical Limits
Track Voltage Maximum
27V
Motor Current - Maximum Continuous 500mA
(overload/short circuit protection)
Motor Current - Peak
1A
(No function load)
Function Output Current - Maximum
100mA
(Unprotected)
Decoder Current - Maximum
Total Continuous
800mA
(Shared i.e. motor + functions)
Sound and other Functions
Number of Spot Sound Functions
15
Number of Running Sounds
3
(i.e. Steam Exhaust/Coasting/Idle)
Number of Digital Functions (Lighting) 3
(Headlight/rear Light and Auxiliary)
Class D. Power 1.68W @ 8 ohm
Speaker Impedance & Power Rating
8
Ω
1 Watt
Number of Sound Channels
2
Physical
Speaker Diameter
26mm
Dimensions Sound Decoder
27mm x 14mm x 5mm
Termination
8 Pin Plug NEM652 NMRA
WARNING
Not suitable for children under 14 years of age. Handle with
care. Please retain these details and the address for future reference.
www.hornby.com
3. Lighting Control
Only if loco is equipped with lights etc.
Please note
Some controllers only offer ‘toggle’ control for function activation. i.e. Once
the function key is pressed it remains ‘On’.
duration,
the function key will need to be pressed again to return the controller to
‘Function Off’ status before it is possible to activate the same function again.
e.g. the Hornby ‘Select’ operates in this manner while the Hornby ‘Elite’
has both ‘toggle’ and ‘momentary’ control of functions, which is ideal for
controlling both ‘Play Once’ and ‘Looped’ spot sounds.
T
ol as
standard. However, the following functions are only available i
to the locomotive.
F#
Description
Play Structure
F0
Headlight/Rearlight (Standard decoder
Dependent on
locomotive direction
F1
Background Steam/Steam exhaust
/Coasting ON-OFF
Various
F2
Whistle Long
Plays Once
F3
Whistle Medium
Plays Once
F4
Whistle Short
Plays Once
F5
Whistle Two Bursts
Plays Once
F6
Wheel Slip
Plays Once
F7
Coal Shovelling
Loops until disabled
F8
Blow Down
Loops until disabled
F9
Safety valve
Loops until disabled
F10
Injector
Loops until disabled
F11
Cylinder Cock
Loops until disabled
F12
Brake
Plays Once
F13
Blower
Loops until disabled
F14
Guard’s Whistle
Plays Once
F15
Coupler Clank
Plays Once
F16
Fireman’s Breakfast
Loops until disabled
F17
and ‘Coasting’
Various
F18
Aux Lighting. (Standard decoder function
Dependent on user
Volume Settings (Mixer Section)
See section 7 on page 7 ‘The Mixer Section’ for CV explanations, etc.
CV
Default Value 2P Class Sound CV Description
Value Range
CV160
4
0-8
Volume Locomotive Background Steam and
Cylinder Cocks on start
CV161
4
0-8
F1 Volume
Locomotive Running - Exhaust/
CV162
4
0-8
F2 Volume
Whistle Long
CV163
4
0-8
F3 Volume
Whistle Medium
CV164
4
0-8
F4 Volume
Whistle Short
CV165
4
0-8
F5 Volume
Whistle Two Bursts
CV166
4
0-8
F6 Volume
Wheel Slip
CV167
4
0-8
F7 Volume
Coal Shovelling
CV168
4
0-8
F8 Volume
Blow Down
CV169
4
0-8
F9 Volume
Safety Valve
CV170
4
0-8
F10 Volume Injector
CV171
4
0-8
F11 Volume Cylinder Cock
CV172
4
0-8
F12 Volume Brake
CV173
4
0-8
F13 Volume Blower
CV174
4
0-8
F14 Volume Guard’s Whistle
CV175
4
0-8
F15 Volume Coupler Clank
CV176
4
0-8
F16 Volume Fireman’s Breakfast
CV177
4
0-8
F1 Volume
Locomotive Running - Decelerating
(Cruise, Sound Mode 2)
CV178
Not
Readable 0-8
Quick Set Volume level
4/1523
For more information visit:
www.hornby.com
Hornby Hobbies Ltd. 3rd Floor, The Gateway,
Innovation House, Discovery Park, Sandwich, CT13 9FF, UK.
Tel: +44 (0) 1843 233525
2P Class
