MRC 0001907 User manual

SPEED TABLE CV67-CV94 FOR 28 SPEED STEPS
When CV29’s bit 4 is set to “1” it will use the speed table formed by CV67-CV94 to
control speed (motor voltage). It allows you to setup each speed for all 28 speed
steps. First, program CV29 to 18 for short addresses (1-127) or program CV29 to 50
for long addresses (128-9999) to enable speed table control. Then select throttle to
28 speed steps and run your loco at speed step 1. Use program CV on the main to
change CV67’s value (1-255) to adjust step 1’s speed. The kick voltage, CV65 is
only applied when the speed step changes from 0 to 1. You should switch between
0 to 1 many times to check step 1’s speed. When done with CV67, select speed
step 2 and program CV68. CV68’s value must be greater then CV67’s. When done
with CV67-CV94, use read back CV to make sure their values are in increasing
order.
Note: When using MRC Prodigy DCC to program addresses it will automatically
disable the speed table (set CV29’s bit 4 to “0”). Programming CV125 to 1 will
also disable the speed table and re-program CV67-CV94 to a default linear
speed setting.
TROUBLESHOOTING
Whenever the decoder doesn’t work please use the program track to program
CV# 125 with value 1 to restore some cv’s to factory settings. This should bring
the decoder to life with address #3. You should also clean the track to improve
electrical pickup. Read your DCC system manual to learn how to program and
operate the decoder. For more information about registers/CVs and their
functions, please refer to the NMRA DCC Standard & Recommended Practices,
RP-9.2.2. This is available directly from the NMRA or their website at
www.nmra.org.
FCC COMPLIANCE
This device complies with part 15 of the FCC Rules. Operation is subject to the
following two conditions. (1) This device may not cause harmful interference,
and (2) This device must accept any interference received, including interfer-
ence that may cause undesired operation.
RETURNPROCEDURE
This decoder carries a 6 month warranty against factory defects. This warranty
does not include abuse, misuse, neglect, improper installation, or any
modifications made to this decoder, including but not limited to the removal of the
NMRA plug if applicable. If it should become necessary to return the decoder for
warranty repair/replacement, please include a copy of the original sales
receipt. Please include a letter (printed clearly) with your name, address,
daytime phone number, and a detailed description of the problem you are
experiencing. Please also include a check or a money order for $10.50 to cover
return shipping and handling. If the decoder is no longer considered under warranty,
then please include a check or a money order for $50.00 to cover the cost of repair
or replacement and return shipping and handling. Be certain to return the
decoder only. Any questions regarding Warranty Policy can be directed to
our Customer Service Department by calling 732-225-6360 between the hours
of 8:30am and 6:00pm EST, or by emailing: [e-mail]
Send the decoder to:
Model Rectifier Corporation
Attn: Parts & Service
80 Newfield Avenue
Edison, NJ 08837-3817 U.S.A
CV Description Range Default
CV1 Shortaddress 1-127 3
CV2 Start voltage 0-32 0
CV3 Acceleration 0-32 0
CV4 Deceleration 0-32 0
CV5 Top voltage 0-32 32
CV6 Speed curve select(0=linear,1=slow increase atslow
speed, 2=fastincrease atslow speed) 0-2 0
CV29 Basic configuration --- 2
CV7 Manufacturer version number --- 2
CV8 Manufacturer ID --- 143
CV17 Long address upper byte 192-231 192
CV18 Long address lower byte 0-255 3
CV19 Advanced consistaddress 0-127 0
CV49 Master volume control 1-16 16
CV50 Horn type 0-22 13
CV51 Horn volume 0-15 12
CV52 Bell type 0-8 3
CV53 Bell volume 0-15 12
CV54 Bell ring rate 0-50 3
CV55 Diesel rumble volume 0-15 12
CV56 Brake squeal volume 0-15 7
CV58 Air release volume 0-15 12
CV59 Air pump volume 0-15 12
CV60 Safetypop valve volume 0-15 12
CV61 Engine cooling fan volume 0-15 12
CV62 Coupling volume 0-15 12
CV64 Rail wheel clack volume 0-15 12
CV65 kickstartvoltage 0-63 63
CV67-94 28 speed steps table while CV29.4=1 1-255 linear
CV105 User identification number 0-255 0
CV106 User identification number 0-255 0
CV112 Sand dropping volume 0-15 12
CV113 BackEMFLoad control proportinalgain Kp 0-31 20
CV114 BackEMFLoad control integral gain Ki 0-31 10
CV115 Auto brake squeal enable/disable 0-1 1(enable
)
CV116 Flange squeal volume 0-15 12
CV122 Diesel notch mode,0=auto-notch3=manual notch 0-3 3
CV123 prime mover type ( 2 types ) 3 or 4 3
CV124 Back EMFLoad control intensity(0=off) 0-255 160
CV125 Program it to1 will restore some CVto factory default setting 0-1 0
CV21 When CV21=0,all accessoryfunctions will follow its own address.When CV21=1,all functions will follow the consist
address --- 0


2011 MODEL RECTIFIER CORPORATION
80NEWFIELDAVENUE
EDISON,NJ08837-3817 Printed in USA
HO DC/DCC Synchronized Diesel
Sound Decoder with 28 Accessory
Functions for Atlas S2/S4 Locomotive
Item #0001907
ThankyouforpurchasingourmostadvancedDC/DCCALCo
sounddecoder. Combined withanyDCCSystem or MRC
Tech6SoundController,ourtrue live capture digital ALCo
sound decoder will bring yourAtlas S2/S4 loco to life.
•Synchronizeddiesel prime mover withrandom
associatedlocomotivesounds
•Adjustable back EMF load control with ultra slow
speedcontrol
•1.5 amp capacity
•Programmablefor either 2-digit (1-127) or 4-digit(1-
9999)addresses
•Programmablestart voltage and top voltage
•Programmableacceleration and deceleration rate
•Programmable 14, 28/ 128 speed steps
•Directional lighting, (FO). Sunny White LED’s
included
•Programmable user selectable horns and bells
• Readback address and CV value
•28 accessory functions (F1-F28)
•Supportsadvanced consisting (CV19)
•Supports programming on the main (OPS mode)
•Compatiblewith NMRA DCC standards
•Complies with part 15 of FCC regulations
•Programmableindividualsoundvolumes
•18mm speaker included
PROGRAMMING
This decoder supports all program mode and read back feature. With MRC Prodigy
Advance DCC you can read its address and CV value.

Function Idle/Moving
F1 Bell on/off
F2 Horn
F3 Air release
F4 Coupling 1
F5 Brake release (idle) / brake squeal (moving)
F6 Dynamic brake on/off
F7 Air hose firing/uncoupling lever
F8 3 times will shut down when in idle / Manual notch down
F9 Engine cooling fan / Manual notch up
F10 Rail wheel clack (only moving)
F11 Traction air compressor
F12 Change prime diesel mover type, (CV123, 2 types)
F13 Master volume reduce by 1
F14 Master volume increase by 1
F15 Air compressor
F16 Flange squeal
F17 Air release
F18 Change bell type (use F1 to turn off bell after adjustment)
F19 Horn type select (total 22 different horns)
F20 Associated loco sound
F21 Change bell volume (use F1 to turn off bell after adjustment)
F22 Change horn volume
F23 Change diesel rumble volume
F24 Safety valve pop
F25 Air release
F26 Flange noise
F27 Sand drop
F28 Air release
left side pick up
right side pick up
left side pick up
right side pick up
tape
tape
tape
tape
tape
tape
mill down both raised channels until weight is flat and tape it
INSTALLATION
Refer to the instructions that came with yourAtlas S2/S4 locomotive for
removal of the handrails, cab and body shell. Unsolder the four pick up
wires and unscrew the two screws. Don’t lose these two screws. Remove
the original circuit board and the weight. You have to modify the weight for
fitting in the decoder. (Do not do any modifications to the weight while it
is still attached to the chassis or damage to the decoder or motor can
result) Use a grinding wheel, belt sander, or a fine file, to modify the top
weight as shown in the photos. Make sure the weight is clean of any
debris before re-installing it in the chassis. Apply tape on the weight
except the two screw area to prevent any short circuit. The trimmed ends
of the pickup wire must be only 1/16” long. Too long will cause a short
circuit and damage the decoder. Solder the four pick up wires to the
decoder in the four spots, noted on the board as “pick”, [see photos].
Make sure that there are no wire strands or solder bridges that will touch
any of the decoder boards components or the weight after you install the
decoder. Note: Some early versions of the loco may only have one screw.
Now, insure the single contact on the bottom of the decoder is bent at
approx 30 degrees to insure contact with top motor brush. Line up the
screw holes in the decoder, with the the modified top weight, and use the
screws to secure the decoder and the weight. The narrow portion of the
decoder should fit snugly in the channel of the top weight.
The rear LED is set up at the factory to line up with the headlight lens in
the cab, if due to shipping the LED does not quite line up with the lens,
gently bend it back into position.
Re-install the body shell, cab, and handrails, and now your S2/S4 is ready
to go to work on your railroad.
SPECIAL NOTE
Due to one of the motor terminals ofAtlas S2 or S4 locomotive is connected
to its chassis, you have to make sure its four wheel pickup contacts not
touch the chassis. If one of them touches the chassis the decoder will be
damaged by the short.
DCC OPERATION
Thedecodershave beenfactory programmedwith address#3,28/128 speed
steps and maximum top voltage. Select the “Run” mode of your DCC system
andselector acquireaddress #3.Move up thethrottle andthe locoshould
move.
The decoder has 2 types of diesel prime mover sounds, (AlCo 539T and
AlCo 244).You can use F12 to change the prime mover sounds. You can
also program CV123 to value of 3 or 4 to select the correct alco primer
mover for matching your diesel engine.
The decoder has a start up and shut down feature. If the loco has been
previously shut down, you have to start up the engine by simply pressing
any numbered function button. To shut down the engine you must bring
the loco to idle and then press F8 three times.
This decoder has 22 different horns. You can use F19 or program CV50
to select these 22 horns. You can also use F18 or program CV52 to
select different 8 bell sounds.
Most of the sounds have their own volume control CV. There is also a
master sound volume control CV49. Also F13 will reduce the master
volume by 1 (you will hear an air release when you reach CV49=1).
Pressing F14 will increase volume by 1 (you will hear an air release
when you reach CV49=16). Programming CV49 to 0 will shut the sound
off.
The decoder is default to automatic notching.You can program CV122 to 3
to set manual notching for realistic operation.And then use F9 to notch up
and use F8 to notch down. This simulates the way a real locomotive
operates.
This decoder is equipped with adjustable back EMF closed loop speed
control. Its proportional gain (CV113), integral gain (CV114) and derivative
gain (fixed) are pre-tuned for most locomotives. We recommend that you
do not change these settings. Too much gain may cause the motor to
oscilate (become unstable). Too little gain may cause slow response.
Please get some basic knowledge of PID feedback control before trying to
adjust CV113/114.
There are many more program features available with this decoder.
Please refer to the CV Chart to explore other features of the decoder.
Note: Bell, Dynamic Brake and Rail Wheel Clack cannot play at the same
time. If you activate the Bell sound [F1], while either the Dynamic Brake or
Rail Wheel Clack sounds are activated, the Bell sound will override the
other 2 sounds. Rail Wheel Clack cannot play while the loco is in idle.
When you turn off Dynamic Brake and Rail Wheel Clack sound there will
beoneseconddelay.
DC OPERATION
With DC operation only the last programmed prime mover sound will play,
and you can’t control bells, horns, etc. We recommend you to use MRC
Tech 6 Sound Controller, [item no. 0001200], for your DC operation. It will
enable the full range of sounds on a DC system.