My Notes on Programming the Light-DEC
Some note I made whilst testing the Light-DEC system
Some note I made whilst testing the Light-DEC system
While programming he Light-DEC DCC addresses, I discovered that you can not use address accessory 509-512 or 1021-1024.
The issue is, is not related to the Light-DEC but to my Lenz LZV100. I found a note I wrote several years ago that says 1021-1024 is reserved, but, I can not find any current documentation that says that. Could the issue with 509-512 be similar ?
The Light Display Module supply voltage can be between 10 and 18 Volt AC or between 12 and 24 Volt DC.
My Light Display Module uses a 15V AC source supplied from my Lenz TR100 transformer capable of 3 Amps. This gets converted to DC and is used for the 40 light outputs (max. 0.5A per output). The output is approx 20V DC, a little too much for the LEDs.
I therefore decided I needed to drop the voltage using a 'buck' voltage convertor to drop the voltage. I chose "LM2596 DC-DC Buck Converter High Efficiency Step Down Voltage Regulator 3.2-46V to 1.25-35V 3A" which can convert the 20V down to 5V at 5A, more than the Light Display Module's maximum permitted output of 0.5A. The cost was about £1 (GBP) each.
To protect the Light Display Module I put an inline quick blow fuse of 0.5A to the 'buck'. I might change this later to a 300mA quick blow fuse.
The Light-Power-Modules requires to be supplied with 12 to 24 Volt DC.
My Light Power Module uses a "12V DC Regulated Switching Power Supply" capable of supplying 12 Amps. The Light Power Module supplies about 12V DC to the 24 outputs (max. 2.5A per output), again, a little too much for the LEDs.
I therefore decided to use another 'buck' module, so I chose "XL4015 DC-DC Converter Adjustable Step-Down Module 4.0-38V to 1.25V-36V" rated at 5Amp, 75W.
To protect the Light Power Module I put an inline quick blow fuse of 2A to the 'buck'.