CV Name Description Range value
01 Engine address Address of engine 01 - 80 03
02 Starting voltage determines the minimum speed 01 - 63 03
03 Acceleration This value multiplied by 0.25 is the time from 01 - 63 16
stop to maximum speed
04 Deceleration This value multiplied by 0.25 is the time from 01 - 63 12
maximum speed to stop
05 Maximum speed Maximum speed of engine 01 - 63 63
08 Factory reset Resets decoder to default values - 8
53 Load control Parameter 1 (control reference) 01 - 63 35
parameter 1 Determines the back EMF voltage that the motor
should supply at maximum speed. The more efficient
the motor, the higher this value may be. Reduce this value if
the engine does not reach its designed maximum speed.
54 Load control Parameter 2 („K“-component) of the internal PI-controller. 01 - 63 24
parameter 2 Determines how strongly load control effects. The higher
the value, the stronger the decoder controls the motor.
55 Load control Parameter 3 („I“-component) 01 - 63 24
The momentum of the motor determines parameter 3.
Motors with large flywheels or large diameter require
a smaller value.
56 Load control influence Determines how strongly load control is active. 01 - 63 63
57 Sound mode 1 Multiplied by 0,64 is the time in seconds 01 - 63 10
for the interval between two exhaust chuffs at speed step 1
The value 01 indicates that the exhaust chuffs
are triggered by a sensor.
58 Sound mode 2 This value determines how the interval between 01 - 63 58
exhaust chuffs is reduced with rising speed steps.
A larger value stands for a stronger, a lower value
for a lesser reduction.
If the exhaust chuffs are triggered by a wheel sensor
This value specifies the number of trigger pulses
Required to release one exhaust chuff.
59 Running sound Divided by 32 is the factor determining the 01 - 63 32
minimum rpm’s of the running sound at the
lowest speed step.
Values < 2 are slower, values > 32 are
faster than the original speed
User Manual LokSound mfx, 1st edition, 07/2005 15
CV Name Description Range value
60 Running sound Divided by 32 is the factor determining the 01 - 63 55
maximum rpm’s of the running sound at the
highest speed step.
Values < 2 are slower, values > 32 are
faster than the original speed
63 Sound volume Volume for running and auxiliary sounds 01 – 63 63
64 Brake sound threshold specifies when the decoder should start 01 –63 07
the squealing brake noises. The higher the
value the sooner it begins.
73 Storage options Determines which information is stored permanently 00 – 07 03
in the decoder.
Value 00 stores no data
Value 03 saves the current speed step & function buttons
Value 07 saves the current speed step & function buttons
and causes continuation of travel with the predetermined
acceleration after a reset.
75 Märklin Address 2 Second Motorola-Address for accessing F5 to F8. 01 – 80 04
78 Starting voltage in analogue mode AC 01-63 25
79 Maximum speed in analogue mode AC 01-63 63