@gunrunnerjohn posted:What's the output voltage of the LW when you measure it directly? The TIU "assumes" 22V input when computes the voltage shown for conventional running. However, if the LW is only putting out 18V, then the TIU will lie to you at a 20% over statement of the voltage.
Another point. Under any load, the TIU drops a volt & a half or so through the variable channels, however if you measure the output no-load, it varies very little from the input.
Note that the TIU drops about a volt and a half with any significant current flowing through the variable channels.
Thanks. Yes, I did notice your latter point, about a 1.5V drop under load, so that jives with my experience.
The LW's output at the transformer is 18.6V. I get the same right at the input to the TIU, so (as expected) no drop in the short wires to the TIU. On the output side of the TIU, that's where I'm seeing 15V even though the DCS remote is asking for 18V.
If I understand you right, I should assume I'm only going to get actual voltage of 80% of what I dial up on the DCS remote, so if I want full throttle from the LWs, I should set around 21-22V. Correct? Wondering how or if I missed that in Barry's DCS Companion book.
