KB729: DT400 Series Throttles - Function Controls

This article was last updated on June 12, 2011, 12:56 p.m. | Print Article | Leave Feedback



The DT400 can control Functions 1 - 12.

Note: DT400 can access F0-F12 when used with the DCS50 Zephyr or DCS100 Super Chief command station. DT400 can only access F0-F8 when used with a DB150 Super Empire Builder command station.

To enter Fn (function) mode:

1. Determine which throttle you want to control functions on and make it the active throttle by single clicking the throttle knob or by turning the throttle knob a couple of clicks.

2. DT400’s numeric keypad is always active in function mode during normal loco operations. When the mode indicator on your DT400 shows Fn, simply press any number on the keypad to activate or deactivate any function.



The functions that are currently on for the active loco will be displayed on the top line of the LCD.

3. If the Mode indicator does not show Fn, press the FUNC Key once to enter the function mode for the active throttle. The Mode Indicator in the center of the lower line on the LCD will show Fn (function mode).

Function 0 (F0)

Press the LAMP / 0 Key to toggle F0 between on and off. Each time the LAMP 0 Key is pressed while in function mode, F0 will change from off to on or vice-versa.  The top line of the LCD will display a 0 when the F0 is on and will be blank when F0 is off. F0 is most often used for reversing head lights but can be set up for other functions as well.

Function 2 (F2)

Press the Horn / 2 Key on the numeric keypad. F2 is labeled with a whistle icon to remind you that this is the preferred function for whistle or horn operation.

F2 has a special non-latching function. This means that F2 can be used to control a whistle or horn sound from the decoder. It will only sound when F2 is being held down. This lets you vary the length of time that the whistle blows, just like the prototype.  (Please see related articles, below).

Function 1, 3, 4, 5, 6, 7, 8, 9, 10, 11, & 12

Press the button on the numeric keypad that corresponds with the function you want turn on/off. The top line of the LCD will display the numbers of the functions that are on for the active loco address. F1 is labeled with a bell icon to remind you that this is the preferred function for bell operation and F3 is labeled with a coupler icon to remind you that its preferred function is coupler operation.

Note: DT400 can access F0-F12 when used with the DCS50 or DCS100 Command Station. DT400 can access F0-F8 when used with a DB150 Command Station.

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