Lenz Digital plus LV102 Mode D'emploi page 23

The LV102 must be connected to terminals C and D in order for the
track voltage to be set. The command station and the amplifier LV102
must be switched on.
Proceed as follows:

Select any locomotive address on the manual control (Don't
worry: If a locomotive with the address used above is placed on a
track while you are setting the voltage, its settings will not be
affected, since CV7 can only be read in the locomotive decoder,
but not changed.)

Change over to "PoM "

Select CV7.

Program the value 50 into CV7. This switches the LZV100 into
setting mode; the LED of the LZV100 shows a double-flash.

You have 15 seconds to program the value for the desired output
voltage (compare below) into CV7. The LED will shine constantly
and the track voltage is altered.
See the following table for the value you will have to program into CV7
in order to set a certain voltage at the output (U
U (V) CV7
A
11 22
11.5 23
12 24
12.5 25
13 26
13.5 27
14 28
14.5 29
U (V) CV7
A
15 30
15.5 31
16 32
16.5 33
17 34
17.5 35
18 36
18.5 37
):
A
U (V) CV7
A
19 38
19.5 39
20 40
20.5 41
21 42
21.5 43
22 44
23
E