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Tsunami™ Digital Sound Decoder - page 35 / 77





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Basic Programming

Rule 17 Headlight Operation - Converts the headlight and backup light to independent, non-directional functions. When enabled, the headlight is controlled as if it were FX5, Function 5 and the backup light as FX6, Function 6.

LED Compensation Mode - Tsunami’s lighting effects can be used with either incandescent bulbs or LEDs. However, because of their differences in brightness characteristics, some lighting effects will appear less life-like when initially set up with an LED. To correct this, Tsunami’s LED compensation mode should be enabled which will improve the contrast of the lighting effect by automatically adjusting the function output level to correct for the different brightness characteristics of an LED.

To set the Hyperlight configuration CVs, proceed as follows:

  • 1.

    First find the CV value in Table G on the next page for the desired lighting effect and operating mode.

  • 2.

    If you wish to enable Rule 17 Mode, add 64 to the table value shown, otherwise, proceed to Step 3.

  • 3.

    If you’re using incandescent bulbs, skip to Step 4. If you are using LEDs, enable the LED Compensation Mode by adding 128 to the sum computed in Step 2.

  • 4.

    Program the sum computed in Step 3 into the CV corresponding to the appropriate function output. Use CV 49 to set the headlight, CV 50 for the backup light, CV 51 for Function 5 and CV 52 for Function 6.

Setting the Flash Rate and Hold Time CV 59 is used to adjust the flash rate of the Hyperlight effect and has a range of 0-15 with 15 being the slowest flash rate. When the Grade Crossing Logic feature is enabled, CV 60 is used to adjust the length of time (in seconds) an effect will remain active after the whistle key is released. CV 60 can be programmed with any value between 0 and 15.

Example 1, Mars Light with Grade Crossing Logic In this example, we will configure the headlight output for use with an incandescent bulb as a Mars Light with Grade Crossing Logic enabled. Following the steps outlined above, we proceed as follows:

  • 1.

    We first look up the initial CV value in Table G for a Mars Light under the column labeled ‘Crossing Logic On’ and find it is 34 for Phase A and 50 for Phase B. Since we are only setting up one light, we do not care about the Phase and choose to the value for Phase A, 34.

  • 2.

    Since we are not using Rule 17, we skip to Step 3.

  • 3.

    Since we are not using LEDs, we skip to Step 4.

  • 4.

    CV 49 (Headlight Configuration) is programmed with the value found in Step 1 or 34.

Lastly, we need to set the grade crossing hold time to about six seconds by programming CV 60 to 6.

Tsunami Steam Sound User’s Guide

Page 32

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