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Throttle Instructions
 
This section provides a summary set of instructions on how to use the most common Digitrax throttles


This page was last updated on October 30th, 2010.

DT100 Throttle

The Digitrax manual for the DT100 can be downloaded here.

The Digitrax manual for the DT100R can be downloaded here.

a) Selecting a Locomotive

Before selecting a locomotive, you must have a good battery, turn on your throttle and plug the throttle into a LocoNet jack.

TWO DIGIT ADDRESSSelect throttle knob you wish to use by rotating that knob.

Press Select.

Red EXP light must be off. If not rotate left knob counter clockwise until BARS appear in display then use right knob turning clockwise to select a 2-digit address.

Left two digits are the Loco address and the right two digits are the status of that address (see Status below).

Press SET. Right two digits now become Loco speed.

FOUR DIGIT ADDRESS

Select throttle knob you wish to use by rotating that knob.

Press Select.

RED EXP light must be on. If not then rotate left knob clockwise until light comes on then select left 2 digits of address using left knob and right two digits using right knob.

When you stop rotating the knobs the status of the address selected will briefly appear. Check the status.

Press SET. The four-digit address will now be in the Display

STATUS

03 Address available never selected.

Address available has been used before.

33 Address in use on another throttle. DO NOT STEAL, find the other throttle and dispatch Loco.

b) Consisting Locomotives

To add a loco to a consist:

Select a lead locomotive address or consist address on the right throttle knob.

Check or select the direction of movement of the lead locomotive.

Select the locomotive address to add to the Consist on the left throttle knob.

Ensure the new locomotive is going in the same direction as the lead locomotive.

Press Mode until a dot appears under MU on the display.

Press + (add) before the mode times out and returns to LOCO

Separating Locomotives in a Consist 

Before removing a locomotive Consist, you must plug the throttle into a LocoNet jack.

To remove a loco from a Consist:

The lead loco or consist address should be in the display and controlled by the right throttle knob.

Press Mode/Dispatch button until a dot appears under MU in the LCD.

Press – (minus) button before the mode times out and returns to Loco.

 If more than two locomotives were consisted together, dispatch locomotive that is now on the left throttle and repeat procedure till all locomotives are removed from the Consist.

Locomotives will be removed from the Consist in the reverse order that they were entered. (LIFO Last In First Out).

c) Stealing a Locomotive

DO NOT STEAL A LOCO UNLESS YOU WERE PHYSICALLY RUNNING IT AND HAVE LOST CONTROL OF IT OR YOU HAVE PERMISSION FROM THE TRAFFIC SUPERINTENDENT OR ROADMASTER.

With address of the locomotive showing on the display and a status indication of 33.

Unplug throttle from LocoNet jack.

While pressing and holding the direction button from the selected throttle side, plug the throttle into the LocoNet jack.

You should now have control of the locomotive.

d) Dispatching a Locomotive

All Functions must be off and Speed set to zero.

Press the SELect button.

Press the DISPatch button.

Rotate Throttle Knob to confirm that no Loco is selected.

DT200 Throttle

The Digitrax manual for the DT200 can be downloaded here.

DT300 Throttle

The Digitrax manual for the DT300 can be downloaded here.
The Digitrax manual for the DT300R can be downloaded here.

a) Selecting a Locomotive

Before selecting a locomotive, you must turn on your throttle always have a good battery and plug the throttle into a LocoNet jack.

Select throttle knob by rotating left or right dial.

Press SELect.

For a 4-digit address, use both dials to set address. Left dial for first 2, right dial for last two digits.

Press SELect.

b) Consisting Locomotives

To add a loco to a Consist:

Select a lead locomotive address or consist address on the right throttle knob.

Check or select the direction of movement of the lead locomotive.

Select the locomotive address to add to the consist on the left throttle knob.

Ensure the new locomotive is going in the same direction as the lead locomotive.

Press Mode the display will ask + or -

Press + before the mode returns to LOCO.

c) Dispatching a Locomotive

 Make sure the one you want to dispatch is active on the screen.

All Functions must be off and Speed set to zero.

Press SELect then press MODE you only have a few seconds or it will time out.

Turn off your battery.

DT400 Throttle

The Digitrax manual for the DT400 can be downloaded here.

a) Selecting a Locomotive

Before selecting a locomotive, you must turn on the throttle and always have a good battery, plug the throttle into a LocoNet jack.

Press the LOCO key.

Key in the decoder address of the locomotive you are to be operating.

Press the ENTER or LOCO key.

b) Consisting Locomotives

To add a loco to a Consist:

Select a lead locomotive address or consist address on the right throttle knob.

Check or select the direction of movement of the lead locomotive.

Select the locomotive address to add to the consist on the left throttle knob.

Ensure the new locomotive is going in the same direction as the lead locomotive.

Press Mode the display will ask + or -

Press + before it times out

The cn on the left now means consist.

c) Dispatching a Locomotive

Make sure the one you want to dispatch is active on the screen.

All Functions must be off and Speed set to zero.

Press LOCO then press DISPatch.   SELect will re appear.

Turn off your battery.

DT402 Throttle

The Digitrax manual for the DT402 throttle can be downloaded here.

UT4 Throttle

The Digitrax manual for the UT4 and UT4R can be downloaded here.
The Digitrax manual for the UT4D throttle can be downloaded here.

a) Selecting a Locomotive

Before selecting a locomotive, you must have a good battery and turn it on.

Turn the dials to the address you want. Two digit addresses start with 00 (e.g. 0015). Three digit addresses start with 0 (e.g. 0124).

Now PLUG IN the UT4 (you will get a green light).

b) Dispatching a Locomotive

Plug in your UT4.

You have a green light.

All Functions must be off and Speed set to zero.

Turn one address selector to any other number.

Wait until you get a red light. The address is dispatch and you’re done.

Turn off your battery.

5. DT300 and DT400 Battery Check

As soon as you insert the battery you have two seconds to look at the voltage.

Your throttle must be unplugged to read the voltage.