| Locomotive(s) | CV Number = CV Value | Description | All Locos Decoder Reset |
CV 8 = 8 | Resets the locomotive to factory defaults. Remove the locomotive from track power after the reset, wait 5 seconds, then restore track power to the locomotive. Note the locomotive address will be 3. | All Locos DCC Addressing Info |
CV 1 = Short Address (Default = 3) CV 17, CV 18, CV 29 = Long Address |
CV 1 stores all addresses from 1 to 127 with no leading zeros! These are considered "short" or "2-digit" addresses. CV 17 and CV 18 store all addresses from 128 to 9999 (Digitrax systems limited to 9983). These are considered "Long", "Extended", or "4-digit" addresses. CV 29 bit 5 (value of 32) has to be turned on in order to enable an address from 128-9999. NCE systems can control addresses 1-127 as "Long" addresses, however you must type the leading "0" before typing the address. You'll get an asterisk symbol in front of the address to signify that you are controling a "Long" address between 1-127. See our Extended Address Table for more information. |
|---|---|---|
| All Locos Reduce Motor Hum Disable Start-Up Delay |
CV 124 = 0 | Reduces most of the motor hum. This setting will disable the movement delay while the locomotive is "starting up". Some motor hum may still be present due to the Back EMF. The only way to stop the motor hum completely is to turn the Back EMF off which we do not recommend. |
| All Locos Reduce Motor Hum Enable Start-Up Delay (Default) |
CV 124 = 4 | Reduces most of the motor hum. This setting will enable the movement delay while the locmotive is "starting up". Some motor hum may still be present due to the Back EMF. The only way to stop the motor hum completely is to turn the Back EMF off which we do not recommend. |
| All Locos Momentum Settings |
CV 3 - Acceleration Rate = Varies CV 4 - Deceleration Rate = Varies |
CV 3 sets the amount of Acceleration delay as the locomotive is throttled up. CV 4 sets the amount of Deceleration delay as the locomotive is throttled down. The range for both is 0-255. InterMountain Defaults: Cab Forward: CV 3 = 40 / CV 4 = 30 All F units: CV 3 = 40 / CV 4 = 56 ES44AC / ES44DC: CV 3 = 60 / CV 4 = 40 ET44AC: CV 3 = 80 / CV 4 = 80 GP10: CV 3 = 80 / CV 4 = 80 SD40-2: CV 3 = 40 / CV 4 = 56 U18B: CV 3 = 40 / CV 4 = 56 |
| All Sound Locos Basic Speed Control |
CV 2 (VStart) = 2 (Default) CV 6 (VMid) = 88 (Default) CV 5 (VMax)= 255 (Default) |
The value of CV 2 controls the speed at speed step 1 of 28. The value of CV 6 controls the speed at speed step 14 of 28. The value of CV 5 controls the speed at speed step 28 of 28. The decoder interpolates the values of steps 2-13 and 15-27 based on the value of CV 6. The ESU LokSound Select manual incorectly identifies the range for CV 6 and CV 5 as 0-64 with a default value of 64. The actual range is 1-255 for all three CVs. |
| Non-Sound Locos with LokPilot Standard V1.0 Basic Speed Control |
CV 2 (VStart) = 2 (Default) CV 6 (VMid) = 22 (Default) CV 5 (VMax)= 64 (Default) |
The value of CV 2 controls the speed at speed step 1 of 28. The value of CV 6 controls the speed at speed step 14 of 28. The value of CV 5 controls the speed at speed step 28 of 28. The decoder interpolates the values of steps 2-13 and 15-27 based on the value of CV 6. The range is 1-64 for all three CVs. |
| All Locos Full Speed Curve |
CV 67-94 = Varies | ESU does not use CV 67 (Speed step 1) nor CV 94 (Speed step 28). Speed step 1 is controlled by CV 2 and speed step 28 is controlled by CV 5. The speed curve is then controlled by CV 68-93 (speed steps 2-27). Enable the speed curve by adding a value of 16 to the current value in CV 29. If you do not know the current value of CV 29 you can read CV 29 using the program track. If you use an extended (4-digit) decoder address of 128 or higher, activate the speed curve by setting CV 29 = 62. If you use a short (2-digit) decoder address of 127 or lower, activate the speed curve by setting CV 29 = 30. NOTES: (1)Set CV 3 (Acceleration Rate) and CV 4 (Deceleration Rate) to 1 in all locomotives before starting to set the speed curve. (2)Be sure to put your DCC system's throttle in 28 speed step mode before attempting to change the speed curve. You can go back to operating in 128 speed step mode if you prefer once the speed curve has been set. |
| All Locos Forward & Reverse Trim |
CV 66 - Forward Trim = 128 (Default) CV 95 - Reverse Trim = 128 (Default) |
These CVs multiply all data points in the speed table (either CV 67 to 94 or CV 2, 5, 6) by a factor of n/128 (where n is the value in CV 66 or CV 95). This results in the overall speed curve to be adjusted up or down without the need to adjust the speed table points again. CV 66 and 95 can hold values between 0 and 255. A trim value greater than 128 will result in a higher speed, a trim value less than 128 will result in a lower speed. A value of 128 maintains the original scaling factor of 1 and will therefore have no influence in the speed curve. Using different values for the forward and the reverse trim will result in different speed for forward and reverse. This can be useful for speed matching a locomotive in a specific direction. |
| All Locos Smoother Motor Control - Option 1 |
CV 54 = 0 | This is an ESU Automatic Motor Control Adjustment that checks for binding in the drive. Set CV 54 to 0. Place loco on the main powered track (if not there already). Have at least 2 feet of straight track in front of the locomotive and press function 1 (the bell function). The locomotive will run at a very high rate of speed and then slow to a stop with it's bell on. Turn the bell off and then test the locomotive for smoother motor control. If this doesn't work to your satisfaction you can repeat the process or try Option 2 below. |
| All Locos Smoother Motor Control - Option 2 |
CV 52 = 127 CV 53 = 160 CV 54 = 127 CV 55 = 127 |
Set these CVs if your locomotive pulses or jerks as it runs. (Try Option 1 above first!) |
| All Diesel Locos with LokSound Select or Non-Sound with LokPilot V4.0 Non-Directional Headlight |
CV 32 = 2 FIRST CV 257 = 16 |
Non-Directional Front Headlight - This removes the "forward" condition for the forward headlight. Function 0 turns it on, and it remains on in reverse while turning on the reverse light. If you do not want the reverse light on in reverse, set CV 282 to 0. CV 257 Default = 20, CV 282 Default = 2 |
| All Diesel Locos with LokSound V5 DCC or Non-Sound with LokPilot V5 DCC Non-Directional Headlight |
CV 32 = 3 FIRST CV 257 = 16 |
Non-Directional Front Headlight - This removes the "forward" condition for the forward headlight. Function 0 turns it on, and it remains on in reverse while turning on the reverse light. If you do not want the reverse light on in reverse, set CV 32 = 8 first, then CV 273 to 0. CV 257 Default = 20, CV 273 Default = 2 |
| All Diesel Locos with LokPilot V1.0 Non-Sound Non-Directional Headlight |
CV 34 = 3 | Non-Directional Front Headlight - This should make the forward headlight to remain on in reverse while turning on the reverse light. If you do not want the reverse light on in reverse, set CV 34 to 1 instead of 3. CV 34 Default = 2 |
| Cab Forward Chuff Rate - Setting 1 |
CV 57 = 96 (3.07 seconds) (Default) | Setting for the distance of steam chuffs at speed step 1. The range is 0-255. |
| Cab Forward Chuff Rate - Setting 2 |
CV 58 = 61 (Default) | Adjustment for the distance of steam chuffs at higher speed steps. The range is 0-255. The chuff rate is affected by changes to the momentum settings and/or changes to the speed tables. Setting the chuff rate will require trial and error to get the desired values. |
| Cab Forward Random Sounds |
Min Distance CV 61 = 10 seconds (Default) Max Distance CV 62 = 15 seconds (Default) |
Adjustment for the distance of Random Sounds. This sets the range of time required for Random Sounds to play. CV 61 controls the minimum amount of time that must pass before the Random Sounds can play and CV 62 controls the maximum amount of time before the Random Sounds must play. The default settings indicate that the random sounds will play between 10 seconds and 15 seconds. After the sounds stop, the timer resets. CV 61 cannot be set higher than CV 62 (CV 61 will match CV 62) and CV 62 cannot be set lower than CV 61 (CV 62 will match CV 61). The range for both of these CVs is 0-255 (0 seconds to 255 seconds). |
| ES44AC / ES44DC ONLY Add E-bell to Air Horn |
CV 32 = 2 FIRST CV 319 = 1 |
Adds auto E-bell sound to activate with the air horn. (As per Prototype). |
| ES44AC / ES44DC ONLY Auto E-bell Volume |
CV 32 = 1 FIRST CV 323 = 0 (Default) |
Increase or Decrease Auto E-bell volume. Range is 0 (off) to 128 (max). The easiest way to turn OFF the Auto E-bell activating with the air horn is to set the E-bell volume to 0 as described above. |
| ES44AC / ES44DC ONLY Change E-bell to Air Bell |
CV 48 = Current Value +64 | Add 64 to current value of CV 48 and interrupt track power for at least 1 second. Changes E-Bell sound to Air Bell sound for early delivered GEVOs. (Default CV 48 = 21. +64 = 85.) Current CV 48 value can be read back using the program track. |
| ES44AC / ES44DC & U18B Use F8 to Start-Up Locomotive |
CV 32 = 2 FIRST CV 403 = 16 |
Loco remains quiet with track power. F8 must now be turned on to turn the prime mover sound on. |
| ES44AC / ES44DC & U18B Use Track Power to Start-Up Locomotive |
CV 32 = 2 FIRST CV 403 = 32 |
Loco prime mover starts up with track power. |
| ET44AC (Tier 4) Use Track Power to Start-Up Locomotive |
CV 32 = 2 FIRST CV 419 = 32 |
Loco prime mover starts up with track power. |
| ES44AC / ES44DC & SD40-2 Ditch Light Flashing ON w/Horn |
CV 32 = 2 FIRST CV 316 = 128 |
Turns ON ditch light alternate flashing with the horn. |
| ES44AC / ES44DC / ET44AC & SD40-2 Ditch Light Flashing OFF w/Horn |
CV 32 = 2 FIRST CV 316 = 0 |
Turns OFF ditch light alternate flashing with the horn. |
| ES44AC / ES44DC & SD40-2 Ditch Light Flash Rate |
CV 112 = 39 (1.95 seconds) Default | Sets how fast the ditch lights alternate. Has an effective range of 1-255. A value of 20 = 1.00 second. |
| ES44AC / ES44DC & SD40-2 Grade Crossing Hold Time |
CV 132 = 80 (5.2 seconds) Default | Sets how long the ditch lights flash after the horn button is released. Has an effective range of 1-255. |
| SD40-2 LokPilot Non-Sound Decoder Add Flashing Ditch Lights to F2 |
CV 32 = 2 FIRST CV 386 = 1 CV 396 = 128 |
Adds alternately flashing ditch lights with F2 (horn key). |
| HO SD40-2 Ditch Light Brightness |
CV 32 = 0 FIRST | Set CV 278 & CV 286 to the same value between 1 (dimmest) and 31 (brightest). Default value for both CVs is 31 (brightest). |
| HO SD40-2 Number Board Brightness |
CV 32 = 0 FIRST | Set CV 294 between 1 (dimmest) and 31 (brightest). Default value for CV 294 is 31 (brightest). |
| SD40-2 Air Bell to E-Bell |
Activate F22 and then F1 OR Set CV 32 = 2 FIRST CV 302 = 0 CV 303 = 4. |
CV settings change Air Bell sound to E-bell sound on F1. |
| SD40-2 Use F8 to Start-Up Locomotive |
CV 32 = 2 FIRST CV 419 = 16 |
Loco remains quiet with track power. F8 must now be turned on to turn the prime mover sound on. |
| SD40-2 Use Track Power to Start-Up Locomotive |
CV 32 = 2 FIRST CV 419 = 32 |
Loco prime mover starts up with track power. |
| All F units Use F8 to Start-Up Locomotive |
CV 32 = 2 FIRST CV 387 = 16 |
Loco remains quiet with track power. F8 must now be turned on to turn the prime mover sound on. |
| All F units Use Track Power to Start-Up Locomotive |
CV 32 = 2 FIRST CV 387 = 32 |
Loco prime mover starts up with track power. |
| Paducah GP10 Sound Add an ESU #54671 PowerPack Mini |
CV 32 = 0 FIRST CV 315 = 0 To disable AUX 6 |
Follow the PowerPack Mini Instructions for soldering the PowerPack to the decoder. AUX 6 must be disabled in order to use the ESU PowerPack Mini. The CVs in the box to the left disable AUX 6. The GP10 marker lights will be on automatically with track power instead of controlled with function 4. NOTE: A PowerPack cannot be added to the GP10 non-sound decoder. |
| ET44AC "Tier 4" Sound & Non-Sound Add an ESU #54671 PowerPack Mini |
CV 32 = 0 FIRST CV 315 = 0 To disable AUX 6 |
Follow the PowerPack Mini Instructions for soldering the PowerPack to the decoder. AUX 6 must be disabled in order to use the ESU PowerPack Mini. The CVs in the box to the left disable AUX 6 for both the sound and non-sound decoders. The ET44AC walkway lights will be on automatically with track power instead of controlled with function 11. |
Programming CVs Numbered Above 255: HO Scale LokSound Cab Forward Sound Volume CVs: N Scale LokSound Cab Forward Sound Volume CVs:
Some Digitrax and NCE DCC systems cannot program CVs higher than 255.
Systems that CANNOT program CVs 255-511 include:
-Digitrax DCS51 Zephyr Extra (as a standalone system)
-Digitrax DT400 throttle with Zephyr Xtra or Zephyr
-Digitrax DT400 throttle with Super Chief or Empire Builder
-NCE PowerPro when programming on the program track
Systems that CAN program CVs 255-511 include:
-Digitrax DT402 throttle with Zephyr Xtra or Zephyr
-Digitrax DT402 throttle with Super Chief or Empire Builder
-NCE PowerCab on either the main or program track
-NCE PowerPro when programming on the mainline in Ops Mode
If you have a system that does not allow programming CVs higher than 255, ESU has implemented an assistance tool. You can use this method on either the program track or mainline with any DCC system and can program any number of CVs from 255-511 in sequence. Digitrax users - use "DIR" or "Pd" mode for all CV programming with ESU decoders.
Set CV96 to the hundreds digit of the CV number that you are programming - The range is 0-9.
Set CV97 to the units and tens digits of the CV number that you are programming - The range is 0-99.
Set CV99 to the desired value of the CV that you are programming - The range is 0-255.
Once you set CV99, the values in CV's 96, 97, and 99 are reset back to 0. You can immediately program another CV above 255, program any other CV, or if done programming, exit to the main operating screen.
EXAMPLE:
We want to set CV257 to a value of 6.
Set CV96 to 2 for the "200" range.
Set CV97 to 57 for the tens digit "5" and the units digit "7".
Set CV99 to a value of 6.
MASTER VOLUME: CV63 - Range: 0-192 - Default: 192
Indivdual Sound Volume CVs (MUST SET CV32 TO 1 FIRST!!):
Range is 0 (0%) - 128 (100%) for all sound volumes listd below:
Chuff #1: CV259 - Default: 110 (85.94%)
Chuff #2: CV267 - Default: 110 (85.94%)
Steam Whistle: CV275 - Default: 128
Bell: CV283 - Default: 99 (77.34%)
Coupler: CV291 - Default: 128
Dynamo: CV299 - Default: 128
Air Pump: CV307 - Default: 120 (93.75%)
NOTE: CV307 only controls the volume of the Air Pump activated by Function 10.
To change the volume of the Air Pump that plays automatically, see CV451 below.
Blower: CV315 - Default: 128
Injector: CV323 - Default: 40 (31.25%)
Crossing Communication: CV331 - Default: 128
Rail Clank: CV339 - Default: 85 (66.41%)
Brake Release: CV347 - Default: 128
Sand Valve: CV355 - Default: 100 (78.13%)
Oil Burner: CV363 - Default: 128
SP Air Horn: CV371 - Default: 80 (62.5%)
Short Whistle: CV379 - Default: 128
Power Reverse: CV387 - Default: 80 (62.5%)
Cylinder Cocks: CV395 - Default: 80 (62.5%)
Hiss and Start-Up: CV443 - Default: 110 (85.94%)
Brake Sound: CV459 - Default: 70 (54.69%)
Random Sounds: CV451 - Default: 128
CV 451 controls the volume of all Random Sounds INCLUDING the Air Pump that plays automatically at random intervals.
MASTER VOLUME: CV63 - Range: 0-192 - Default: 192 (100%)
Indivdual Sound Volume CVs (MUST SET CV32 TO 1 FIRST!!):
Range is 0 (0%) - 128 (100%) for all sound volumes listd below:
Chuff #1: CV259 - Default: 110 (85.94%)
Chuff #2: CV267 - Default: 110 (85.94%)
Steam Whistle: CV275 - Default: 128
Bell: CV283 - Default: 99 (77.34%)
Coupler: CV291 - Default: 128
Dynamo: CV299 - Default: 128
Air Pump: CV307 - Default: 120 (93.75%)
NOTE: CV307 only controls the volume of the Air Pump activated by Function 10.
To change the volume of the Air Pump that plays automatically, see CV451 below.
Blower: CV315 - Default: 128
Injector: CV323 - Default: 40 (31.25%)
Crossing Communication: CV331 - Default: 128
Rail Clank: CV339 - Default: 85 (66.41%)
Brake Release: CV347 - Default: 128
Sand Valve: CV355 - Default: 100 (78.13%)
Oil Burner: CV363 - Default: 128
SP Air Horn: CV371 - Default: 80 (62.5%)
Short Whistle: CV379 - Default: 128
Power Reverse: CV387 - Default: 80 (62.5%)
Cylinder Cocks: CV395 - Default: 80 (62.5%)
Hiss and Start-Up: CV443 - Default: 110 (85.94%)
Brake Squeal: CV459 - Default: 70 (54.69%)
Random Sounds: CV451 - Default: 128
CV 451 controls the volume of all Random Sounds INCLUDING the Air Pump that plays automatically at random intervals.
As part of the ESU Full Throttle features included in the N scale SD40-2, Run 8 and Coast are not mapped to a function key by default. If you would like these features mapped, the following instructions map Run 8 to Function 13 and Coast to Function 14. Both of these functions are basically open in the decoder.
To do this set the following IN ORDER:
CV32 = 2 FIRST
CV490 = 0
CV496 = 8
CV512 = 16
If you would like Run 8 and Coast mapped to different functions, it is possible however some sound functions or lighting functions may have to be moved to different keys. This is very "custom" and is beyond the scope of this instruction. You can use the N scale SD40-2 function mapping table or give us a call.