The back EMF control used on this decoder will give superb results at slow speed when correctly set. The default CV values are suitable for many motors, however there may be instability in motor performance when the back EMF control is not matched to the requirements of the motor. If this is found to be the case CVs 53 to 55 should be adjusted to alter the back EMF settings to suit the motor. In case of difficulty contact Bachmann Europe for more advice.
Motor output 700mA with 31.25KHz pulse frequency for smooth and quiet slow speed running.
Function outputs 180mA each, 350mA max. total
Function button controlled shunting speed, halves the maximum speed when enabled.
Supported CVs and default values/settings
|
CV |
Definition |
Min-Max |
Default |
|
1 |
Locomotive Address |
1-127 |
3 |
|
2 |
Start Voltage |
1-63 |
3 |
|
3 |
Acceleration |
0-63 |
8 |
|
4 |
Deceleration |
0-63 |
6 |
|
5 |
Max Voltage |
0-63 |
63 |
|
7 |
Version |
0-63 |
0 |
|
8 |
Manufacturer ID |
ESU |
151 |
|
29 |
|
Bit |
|
|
Direction |
0 |
0 |
|
Speed steps |
1 |
1 |
|
DC Operation |
2 |
1/Enable |
|
Not used |
3-7 |
NA |
|
49 |
Back EMF Selector |
Bit 0 |
1/Enable |
|
51 |
Lenz DC Brake Mode |
Bit 0 |
1/Enable |
|
53 |
Feedback Reference |
0-63 |
42 |
|
54 |
Feedback Parameter K |
0-63 |
32 |
|
55 |
Feedback Parameter I |
0-63 |
24 |
|
63 |
Function Brightness |
0-7 |
7 |
Please note that this decoder does not support CV 19 advanced consisting, if you wish to use this function, eg. to operate pairs of class 20 locomotives, it is supported by Bachmanns' 36-552 decoder.
Universal consisting using your DCC controller is supported.
While the default back EMF settings are suitable for many locomotives and appear to work fine with all manufacturers' diesel locomotive models some tuning may be necessary with some steam locomotive models. We advise testing all decoder installations on a controlled section of track with stop blocks arranged to prevent a runaway locomotive from falling off the end.