NCE D15SR Manual - page 8
Configuration Variables used by V3.5 Decoders
CV1
Short decoder address; 1-127 valid
CV2
Start Voltage (useful range 0-100)
CV3
Acceleration rate (each unit = 7mS between speed steps) 255 max.
CV4
Deceleration rate (each unit = 7mS between speed steps) 255 max.
CV5 Vmax, speed at highest speed step. 0=use factory default of 255
CV6
Vmid, speed (on a scale of 1-255) at speed step 7,14,or 63. 0=use default of 127
CV7
Decoder version number. This decoder is 3 5 which means version 3.5
CV8
Manufactuer ID. NCE = 11 (0B hex)
CV11
Packet timeout value (in ½ second increments) Time the decoder will wait before braking to a
stop after running into a section of track with DC power. 0=Don’t brake
CV15
Decoder programming lock “KEY”. This CV is always programmable even when “locked”
CV16
Decoder programming lock ID. When CV15=CV16, programming is unlocked and the
decoder will respond to programming commands. If CV15 is not equal to CV16 then
decoder programming is locked and it will not program (except CV15) or read.
CV17
High byte of long (4 digit) address
- bit 6,7 always= 1
- bits 0-5 are upper 6 bits of address
CV18
Low byte of long (4 digit) address
CV19
Consist address. (0 or 128 = no consist active)
- bits 0-6 short consist address (1-127 valid)
- bit 7
0= direction is normal, 1= direction is reversed
CV21
Functions active in consist mode. Bit 0 controls F1,bit 1=F2, bit 2=F3, etc.
- bit 0 - 1=function can be controlled at consist address, 0 = no consist control
CV22
Functions active in consist mode. Bits 0,1 control FLF and FLR respectively
each bit 1=function can be controlled at consist address, 0 = no consist control
CV29
-bit 0
1= direction of operation is reversed, 0= direction is normal
- bit 1 1=28 speed mode (always enabled)
- bit 2
1= analog operation mode enabled, 0 = disabled
- bit 4
1= alternate speed table active, 0= use table defined by CV2,5,6
- bit 5
1= use long address in CV17/18, 0= use short address CV1
- bits 3,6,7 are ignored by the decoder
CV30
Set this CV to 2 on the programming track and the decoder will reset to factory settings.
CV33-CV39 function mapping CVsfor F0-F5
CV67-CV94 Uploadable speed table steps 1-28 (128 speed mode calcu lates intermediate steps)
CV95
Reverse trim, values 1-127 add to reverse speed, values 129-255 add to forward speed
CV116
Torque kick rate - number of 16ms periods in a row that motor is ‘kicked’ with voltage pulse
CV117
Torque kick strength - how much voltage is used to kick the motor at slow speeds. Reduces
to 0 as speed is increased.
CV118
Ditch light hold time (in ¼ second increments) after F2 goes off.
CV120-CV124 Effects configuration registers for outputs 1-5
CV NOTES: All CV numbers not listed above may be programmed but not used by the decoder. This
decoder supports all DCC programming methods.
Formula for computing the long address if using a Lenz SET01 or SET02:
If using a Lenz SET01, SET02, SET90, SET100 or other entry level system, use paged programming
mode and see below for programming long addresses.
CV17 = 192 + (the whole number portion of the long address divided by 256)
CV18 = the remainder after the long address is divided by 256
CV29 = 34 if analog mode disabled, 38 if analog mode enabled
Decoder Warranty
This decoder is fully factory tested and warranted against manufacturing defects for a period of 1 year. As the
circumstances under which this decoder is installed can not be controlled, failure of the decoder due to installation
problems can not be warranted. This includes misuse, miswiring, operation under loads beyond the design range
of the decoder or short ciruits in the locomotive manufacturer’s factory wiring. If the decoder fails for non-warranted
reasons NCE will replace the decoder, no questions asked, for $10 U.S. plus $2 shipping. For warranty or
non-warranty replacement send the decoder (and any payment, if required) to:
NCE Warranty Center
899 Ridge Road
Webster, New York 14580
The terms Silent Running, Powerhouse Pro, Power Pro, SmartCab, ProCab, Switch-It, Snap-It, the NCE logo with “Power of DCC”
slogan and EFX are trademarks of NCE Corporation. Digitrax is a trademark of Digitrax Inc.
**Last revised: 17 November 2003
Page 8
D15SR
Bar Code