MRC 1651 Quick Start Manual

PROGRAMMING

T
his decoder supports all program modes and read back features. With MRC Prodigy
Advance² DCC you can read its address and CV values.
Please refer your DCC manual to learn how to program CV. See the regis-
ter/CV chart to custom tailor your MRC Light Effects. For a more compre-
hensive understanding of CVs and registers. visit the National Model Rail-
road Association website at www.nmra.org.
CV Register Description
CV1 R1 Short address
CV2 R2 Start voltage
CV3 R3 Acceleration
CV4 R4 Deceleration
CV5 --- Top voltage
CV29 R5 Basic configuration
CV7 R7 Manufacturer version number
CV8 R8 Manufacturer ID
CV17 --- Long address upper byte
CV18 --- Long address lower byte
CV19 --- Advanced consist address
When CV21=0, all accessory function
will follow its own address. When
CV21 ---
CV21=1, all functions will follow the
consist address
CV65 kick start voltage
CV67-94 28 speed steps table while CV29.4=1
CV105 --- User identification number
CV106 --- User identification number
CV113 Back EMF Load control proportional gain Kp
CV114 Back EMF Load control integral gain Ki
CV117 0 for directional, 1 for rule 17, 2 for bright and dim
CV118 ACC1 light type control (green wire)
CV119 ACC1 light type control (pink wire)
CV121 Ditch flash (=1) or stay on (=0)
CV124 Back EMF Load control intensity (0=off)
Factory default setting: Program it to 1
CV125 ---
will restore all the CV to defult setting

BACK EMF LOAD CONTROL (PID CONTROLLER)

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 recommendend that
you do not change these settings. Too much gain may cause the motor to
oscilate (become unstable). Too little gain may cause slow reponse.
Please get some basic knowledge of PID feedback control before trying to
adjust CV113/114.
With back EMF load control the locomotive will maintain its speed regard-
Range Default
less of pulling up hill or driving down hill.You may program the back EMF
1-127 3
load control intensity, CV124, to a lower value to get less back EMF load
0-32 0
control. This will enable the locomotive to slow down during uphill travel.
0-32 0
0-32 0

FCC COMPLIANCE

0-32 32
This device complies with the Part 15 of FCC rule. Operation is subject to
--- 2 the following two conditions. (1) This device may not cause harmful interfer-
ence, and (2) this device must accept any interference received, including
--- 32
interference that cause undesired operation.
--- 143
192-231 192
TROUBLE SHOOTING
0-255 3
Whenever you find the decoder doesn't work properly please clean your
0-127 0
track and the loco's wheels.
CV125 with a value of 1 to restore factory defualt setting. Your decoder may
simply lose its memory. All you may need to do is to reprogram its ad-
0-1 0
dress.
0-63 63

RETURN PROCEDURE

1-255 linear
This decoder carries a 6 month warranty against factory defects. This
0-255 0
warranty does not include abuse, misuse, neglect, improper installation,
0-255 0 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
0-31 20
return the decoder for warranty repair/replacement, please include a copy
0-31 10
of the original sales receipt. Please include a letter (printed clearly) with
0-2 0
your name, address, daytime phone number, and a detailed description of
0-5 0
the problem you are experiencing. Please also include a check or a money
0-5 0 order for $11.00 to cover return shipping and handling. If the decoder is no
longer considered under warranty, then please contact Model Rectifier
0-1 0
Corp. for a price quote to cover the cost of repair or replacement of the
0-255 160
decoder, and return shipping and handling. Customers outside the
--- 0
continental United States, including: Hawaii, Alaska, Canada and Mexico,
have to contact MRC for exact return shipping rates for both warranty and
non-warranty repairs. Contact rrtech@modelrectifier.com. 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:
rrtech@modelrectifier.com
Send the decoder to:
Model Rectifier Corporation
Attn: Parts & Service
80 Newfield Avenue
Edison, NJ 08837-3817 U.S.A
And reprogram loco address or program
MRC 1651
4-FUNCTION DECODER
with MRC Light Effects
Built-in NMRA DCC & 9-pin plug
Thank you for purchasing our highly advanced DCC locomotive
decoder. Combined with any DCC System, our decoder will
make your model railroad more realistic and more exciting.
• Adjustable back EMF load control with ultra slow
speed control
• Built-in NMRA DCC plug and 9-pin plug
• Maximum current: 1.5 Amp
• Programmable for either 2-digit (1-127) or
4-digit (1-9999) addresses
• Programmable start voltage and top voltage
• Programmable acceleration rate and deceleration rate
• Programmable 14, 28, or 128 speed steps
• Directional lighting at 0.1 amp rate
• Easy setting "Rule 17" lighting, ditch, strobe and
Mars lights
• 2 accessory functions (ACC1 & ACC2), at 0.1 amp
rate
• Supports advanced consisting, (CV19)
• Supports programming on main
• Supports full read back
• Compatible with NMRA DCC standard
• Complies with the Part 15 of FCC
• 19.30mm long x 17.0mm wide x 5.0mm high