The new line of Lenz advanced decoders with back emf control (Version 5.1) support a full range of features. The following table lists the various CVs supported.
Please note that the bit assignments in this table use a bit numbering scheme of 1-8 to correspond to the 1-8 display on DIGITAL plus systems. Many other systems use a scheme of 0-7. Some CVs (such as CV29) have specify specific meanings for each bit. If you are using such a system you should subtract one from all bit numbers described in these CVs.
| CV | Reg | Description | Range | Factory setting | ||
| 1 | 1 | Locomotive address: This is the number with which you select a locomotive in the DIGITAL plus system. |
1-127 | 3 | ||
| 2 | 2 | Start voltage: This is the voltage applied to the motor in speed step 1. Set this value so that the locomotive just starts moving in speed step 1. |
1-15 | 1 | ||
| 3 | 3 | Acceleration Momentum: Determines the rate of change of speed upon acceleration. A higher value leads to a slower acceleration. |
1-31 | 1 | ||
| 4 | 4 | Brake Momentum: Determines the rate of change of speed upon braking. A higher value leads to longer brake distance. |
1-31 | 1 | ||
| 5 | - | Maximum speed Determines the maximum speed that the locomotive will move. This allows you to operate your locomotives in a prototypical speed range. |
1-10 | 10 | ||
| - | 5 | CV29 when the page/pointer register has a value of 1 or value of CV pointed to by Register 6 when register 6 is being used as a pointer register | 0-127 | 4 | ||
| - | 6 | Page/Pointer Register: Used during programming for paging or indexing |
0-127 | 1 | ||
| 7 | 7 | Version Number: This location stores the version number of the decoder. This location is read only. |
- | 51 | ||
| 8 | 8 | Manufacturers Identification: This value is a code for the manufacturer of the decoder, for the LE110 naturally Lenz (99). This location is read only. |
- | 99 | ||
| 9 | - | EMF Frequency Allows you to adjust the pulse rate frequency for finer motor control |
0-15 | 4 | ||
| 17 | - | Extended Address High Byte | 192-231 | 0 | ||
| 18 | - | Extended Address Low Byte The two byte address if used is contained in CV17+18 |
0-255 | 0 | ||
| 19 | - | Consist Address The advanced consist address if used is stored in CV19 |
0-255 | 0 | ||
| 29 | *5 (R6=1) |
Decoder Configuration, Byte 1: Several decoder properties are set with this byte. Changes are best done in binary mode (see the information for the Hand Held LH100). The detailed properties are: |
0-55 | 4 | ||
| bit 1: | locomotive direction: 0 normal: locomotive moves forward when the arrow on the Hand Held points up. 1 inverted: locomotive moves forward when the arrow on the Hand Held points down. |
0,1 | 0 | |||
| bit 2: | speed step mode: 0= Operation with 14 or 27 speed steps. This setting is selected when the locomotive decoder is used with a software below version 2.0, ROCO-Digital, LGB-Digital, Arnold Digital and with all other Digital systems that do not support the 28 speed step mode. 1= Operation with 28 speed steps. This setting is selected when the locomotive decoder is used with a Command Station with software version 2.0 or higher. The Command Station has to be set to 28 speed step mode for the decoder address, if you are using this setting! Other Digital systems supporting the 28 speed step mode can use the decoder in this setting. |
0,1 | 0 | |||
| bit 3: | Usage on conventional DC layouts: 0= locomotive operates in digital mode only 1= locomotive can operate in both conventional DC and digital mode. |
0,1 | 1 | |||
| bit 4: | always 0 | 0 | 0 | |||
| bit 5: | speed curve: 0= factory pre-set speed curve is used 1= user defined speed curve is used. Please enter the appropriate values into CV 67 to 80 before setting this bit. |
0,1 | 0 | |||
| bit 6: | Extended Addressing 0= Normal addressing 1=Two Byte extended addressing |
0-1 | 0 | |||
| bit 7,8: | always 0 | 0 | 0 | |||
| 30 | - | Decoder Error Information | ||||
| bit 1: | Motor Short If set short between motor and track |
0,1 | 0 | |||
| bit 2: | Front Headlight Short If set the front headlight is shorted |
0,1 | 0 | |||
| bit 5: | Rear Headlight Short If set the rear headlight is shorted 1 user defined speed curve is used. Please enter the appropriate values into CV 67 to 80 before setting this bit. |
0,1 | 0 | |||
| 60 | - | Decoder Configuration, byte 2: Similar to CV 29, but other properties are set with this byte: |
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| bit 1: | Back EMF Control If set back emf control is active |
0,1 | 1 | |||
| bit 2: | Decoder Control Active If set CV30 contains decoder error |
0,1 | 1 | |||
| bit 3: | Brake momentum on DC operation. This setting is only active with conventional DC operation disabled. (CV 29, bit 3 = 0) This setting can be used to achieve prototypical braking at red signal indications. 0= locomotive proceeds with track voltage dependent speed inside the conventional section. 1= locomotive brakes in the conventional section with pre set brake momentum. |
0,1 | 0 | |||
| bit 4-8: | always 0 | 0 | 0 | |||
| 67 to 80 | - | Values for user defined speed curve: These registers are used for a user defined speed curve. The factory setting for these registers is 0. If you are trying to use this speed curve unmodified, your locomotive will not move! The value in each register determines the velocity of the locomotive for each assigned speed step: For the 14 speed step mode, speed step 1 is using the value in CV 67, speed step 2 the value in CV 68, speed step 3 the value in CV 69, etc. For the 28 speed step mode, speed step 1 is using the value in CV67, speed step 3 the value in CV 68, speed step 5 the value in CV 69, etc. The intermediate speed steps are calculated by the decoder. |
0-63 | 0
|
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Creating a Speed Curve
Start by writing down how you want to assign the internal speed settings to the speed steps, for example by making up a table as shown below. The table shown is just an example and gives the factory pre-set speed curve for a starting speed of 1.
In the following description, we will assume that the decoder is properly installed and tested, and the locomotive is on the programming track with the power on. We assume you are familiar with the general process of programming using your command station.
Speed step in 14/27 mode |
Speed step in 28 mode |
Internal speed setting |
CV / register |
1 |
1 |
1 |
67 |
2 |
3 |
3 |
68 |
3 |
5 |
5 |
69 |
4 |
7 |
7 |
70 |
5 |
9 |
9 |
71 |
6 |
11 |
12 |
72 |
7 |
13 |
15 |
73 |
8 |
15 |
19 |
74 |
9 |
17 |
23 |
75 |
10 |
19 |
28 |
76 |
11 |
21 |
34 |
77 |
12 |
23 |
42 |
78 |
13 |
25 |
52 |
79 |
14 |
27 |
60 |
80 |
-- |
28 |
63 |
81 |
Copyright 1995-2001 by Lenz Elektronik, GmbH. All Rights Reserved
This page was designed by Debbie Ames, owner tttrains