LGB 55025 switch/turnout controller

Overview

First, most of the material here is courtesy of Mark, staff member on GScaleCentral.com

The LGB55025 switch decoder allows you to control 4 seporate point motors using independant accessory addreses. It is possible to control up to 2 point motors off off a single output but i will come to that later.

In order to program the unit, the "Prog" terminals should be bridged, a load connected to the "A" terminals (a point motor is ideal) and the "In" terminals connected to a suitable device to perform the programming, this could be the programming track of your central station, the LGB programming module (55045) or the LGB universal handset (55015) with the programming insert.

Programming

Each switch decoder can be assigned a bank of 4 addresses, the first bank being address 1 thru 4 (default), the next being 5 thru 8, 9 thru 12, etc up to 125 thru 128.

Each of the outputs (A - D) can be configured by setting the relevant CV value to:

[*]provide an output to drive a EPL switch drive (default)[*]provide a constant on/off type output[*]provide an asynchronous flashing output.

This operating mode changes the direction of the current. This means that the terminal alternates between a positive and a negative wave form. To be able to use this, you need a polarity-dependent device.

[*]provide a synchronous flashing on/off output

CVs

CV1

Switch decoder address (1-128). Set this CV to one of the address values in the block of addresses you require, i.e. setting CV1 to 6, will select the 5 thru 8 address block.

CV 2-5

set options for the 4 outputs (terminals A through D)

Terminal A-D Options values:

Polarity value
This specifies the polarity of the output:
[*] 0 - Normal[*]32 - Reverse
Time value
This specifies the time period that the function operates and is dependent upon the function being used:

EPL - pulse duration (value=duration in seconds):
0=0.3, 1=0.4, 2=0.5, 3=0.61, 4=0.7, 5=0.8, 6=0.9, 7=1.02, 8=1.17, 9=1.33, 10=1.5, 11=1.66, 12=1.83, 13=2.0, 14=2.15, 15=2.3, 16=3.0, 17=3.5, 18=4.0, 19=4.5, 20=5.0, 21=5.5, 22=6.0, 23=6.5, 24=11.0, 25=16.0, 26=19.0, 27=24.0, 28=29.0, 29=34.0, 30=39.0, 31=Continuous
Note 1: Default value
Note 2: Recommended value when switching 2 switch drives from the same output.

On/Off - Duration of "on" period (value=duration in seconds):
0=0.3, 1=0.4, 2=0.5, 3=0.6, 4=0.7, 5=0.8, 6=0.9, 7=1.0, 8=1.17, 9=1.33, 10=1.5, 11=1.66, 12=1.83, 13=2.0, 14=2.15, 15=2.3, 16=3.0, 17=3.5, 18=4.0, 19=4.5, 20=5.0, 21=5.5, 22=6.0, 23=6.5, 24=11.0, 25=16.0, 26=19.0, 27=24.0, 28=29.0, 29=34.0, 30=39.0, 31=Continuous

Asynchronous Flashing - Duration of "on" period (value=duration in seconds):
0=0.14, 1=0.43, 2=0.713, 3=1.0, 4=1.25, 5=1.5, 6=1.75, 7=2.0, 8=2.29, 9=2.57, 10=2.85, 11=3.14, 12=3.42, 13=3.71, 14=4.0, 15=5.0, 16=6.0, 17=7.0, 18=8.0, 19=9.0, 20=10.0, 21=12.0, 22=14.0, 23=18.0, 24=36.0, 25=40.0, 26=44.0, 27=53.0, 28=62.0, 29=71.0, 30=80.0

Synchronous Flashing - Duration of "on" period (value=duration in seconds):
0=0.14, 1=0.43, 2=0.713, 3=1.0, 4=1.25, 5=1.5, 6=1.75, 7=2.0, 8=2.29, 9=2.57, 10=2.85, 11=3.14, 12=3.42, 13=3.71, 14=4.0, 15=5.0, 16=6.0, 17=7.0, 18=8.0, 19=9.0, 20=10.0, 21=12.0, 22=14.0, 23=18.0, 24=36.0, 25=40.0, 26=44.0, 27=53.0, 28=62.0, 29=71.0, 30=80.0

CV9