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On the DT402 and DT400 series throttles, the direction indicators are located in the LCD Display directly below the Loco Icon. There are separate indicators for the L (left) and R (right) throttles. If the arrow points to the front of the loco, the throttle is in the forward direction. If the arrow points to the back of the loco, then the throttle is in the reverse direction. If there is not a locomotive selected on a throttle the loco icon will not appear.Note: These direction indicators are for DCC equipped locos only. They will indicate direction based on the ...
On The DT400 and DT402 series throttles, the L & R Loco Icons are used to indicate whether an address is available for selection. A blinking loco icon means that the address is available for selection and a steady loco icon means that the loco address is currently selected or in use by another throttle.
The DT400 has an informational liquid crystal display (LCD).The display shows: Mode Indicator Track Power Indicator Tetherless Indicator Text Area Throttle Addresses (L & R) Throttle Direction (L & R) Loco Icons (L & R) Smoke Icons (L & R) Functions 0 - 12, active throttle only Bar Graph (L & R) Semaphore Indicator (L & R), not currently implemented
Digitgrax refers to the throttle knob on the left side as the L Throttle and the throttle knob on the right side as the R Throttle. This corresponds to the L & R that appears on the throttle. The throttle knobs on the DT400 use “encoders.” They give very smooth, fine speed control. In 128 speed step mode it takes four complete rotations of the knob to go from stop to full speed. When you select a locomotive that is already moving on either throttle knob, that throttle will continue to run the locomotive at the same speed and in the ...
ENGINE SELECTIONPlace locomotive on the tracks controlled by the command station.1. Turn the throttle knob you want to run a loco on about a quarter turn (this lets the controller know you want to address that side.)2. Push the "Sel" Button3. Turn the throttle knob you have selected until the left numbers of the display match the locomotive number you wish to run. (No decoder = 00)4. Push "Sel" again.5. Repeat for the other throttle.If the number "33" appears it means that locomotive is unavailable (usually under the control of another throttle)These simplified DT100 operating instructions courtesy of Alan Mitchell
How to Select and Run a DCC Locomotive Using a DT402 or DT400 Series Throttle 1. Activate the throttle's left throttle knob “L” by turning it a 1/4 turn in either direction or by clicking the throttle knob once. The left side address will begin flashing. If nothing is selected on this throttle it will flash “SEL”.2. Press the LOCO Key. The left side of the display will begin flashing. The illustration above shows the LCD display just after you press the LOCO Key to select an address on the L Throttle when nothing has been selected on that throttle before and ...
Q: I am trying to setup 4 Kato locomotives 3 SD-70MACs and 1 C-44-9, all with DN 163K1B decoders. I am using the loadable speed tables V in the programing manual that came with my Super Chief for a starting point. I have spent a few hours with limited success. Do have any suggestions that may help simplify this process? A: Because the decoders and command control system are digital, the commands sent from the command station based on the CV settings in each locomotive are always the same. It is the locomotive mechanisms that are different. Even with three "identical" locomotives from ...
The DT400 and DT400R are full function hand held throttles that include 2 independent throttles and a common keypad to control, up to 13 functions (0-12), turnouts and programming.
The DT402 & DT402's screens are an LCD (Liquid Crystal Display) that is designed to show you what you are controlling with the throttle. It also facilitates programming and other features of the LocoNet system. 1. The handheld has two throttles called the left throttle (L) and the right throttle (R).2. There are two direction indicators. One for the L throttle and one for the R Throttle. If the direction indicator is lit, and there is smoke over the loco icon there is an address selected on that throttle.3. The direction indicator with blinking smoke indicates which throttle is currently active. The ...
Over the years, different Digitrax throttles have used a combination of decimal, modified hexadecimal and hexadecimal numbers for entering CV numbers and CV values. The following information is provided as a programming reference to show you how these different schemes work so that you will be able to use your throttle to program decoders.UT1 & UT2 Utility Throttles use decimal numbers exclusively for CV numbers and CV values. Because these throttles use 2 selector switches that can access the numbers 0-9, you are limited to programming only CV#s and values from 00 to 99.DT100 Throttles use a modified hex numbering ...
I have a Zephyr and a DB150. How can I wire the two together so that the Zephyr acts as throttle and the DB150 supplies power? At this this time I have only a single block. The easiest way to handle this situation is to divide the railroad up into two power districts. If one command station unit is more powerful than the other, then the area controlled by the weaker unit (in this case, the 2.5 Amp Zephyr) could simply be a single siding or engine terminal. The Zephyr would then become a booster, supplying power to this small ...
Selecting a locomotive-Safety Selection While unplugged, the DT402 (IR only) and DT402R (IR and Simplex Radio) operate as one-way transmitters. The DT402 and DT402R must be plugged into LocoNet to select an available locomotive address. After an address is selected, you can unplug from LocoNet and run the selected addresses with infrared or simplex radio. The throttle will automatically convert to infrared or simplex radio operation for all speed, direction, function, operations mode programming, and switch commands. The DT402D throttle has full duplex radio capabilities. Once the 402D has been configured to communicate with a UR92, the full functionality of ...
Digitrax Query Mode: The new generation of Digitrax Advanced Command Stations and other new products from ~October 2016 onwards include some convenient new self-diagnostic and external diagnostic capabilities and methods, to help keep LocoNet systems and devices healthy and working optimally, without requiring additional tools. The DCS240 and DCS210 Advanced Command Stations include “Query Mode” diagnostic information that can be interrogated or read-out using enhanced capabilities of DT500 throttles. Advanced Command Station Query information is grouped into six broad groups of data/diagnostic information displayable by a DT500/DT500D: “Lnt”: LocoNet Device Type/product info “ELE”: Device Electrical information, voltages/currents, etc. “Lnt”: LocoNet ...
The DT402 Throttle will control up to 29 functions in walkaround and radio modes. When operating in IR Mode the DT402 series throttles will control up to 9 functions (F0-F8). The numeric keypad is always active in the normal Fn operation mode. The functions that are currently on for the active loco will be displayed on the top line of the DT402 display. The following figure shows an example of how the display looks when functions 0 and 1 are turned on for loco 1652 on the R Throttle. Controlling Functions F0-F12 1. Determine which throttle you want to control ...
The mode indicator, located at the bottom center of the LCD, shows the DT402’s current mode of operations. The DT402 automatically defaults to the Fn mode and returns to this mode whenever the EXIT Key is pressed. The Mode indicator usually shows what the numeric keys are associated with. For example, in Fn mode, any entry on the numeric keypad will affect functions. In Sw mode, keypad entries will change turnouts and in Lo mode, entries on the keypad will enter loco address numbers, etc. The following table provides a list of the Mode indication displayed, the mode name and ...
MU OPERATION Place the two units you wish to MU on the tracks controlled by the command station 1. Select the lead locomotive on the right side throttle 2. Select the engine to be added on the left side throttle 3. Make sure all the locomotives in the consist are traveling in the same physical direction. The direction lights may or may not be the same (green or red) depending on the orientation of the locomotives in the consist (head to head or tail to tail). 4. Push "mode" Button 2 times 5. The display should now show both locomotive numbers. 6. ...
'It is possible to operate one conventional DC locomotive at Address 00. In many cases, this is the first locomotive that beginners use when they first get their command control system. In other cases, this locomotive is one which cannot be easily converted to DCC. Regardless, although it is possible to use your Digitrax system in this way, it is not a recommended approach.1. Place an analog locomotive (one without a decoder) on your layout. While the analog loco is sitting still, you will hear the characteristic “singing” caused by the DCC track signal when it is applied to analog ...
To stop everything on the layout, press the PWR Key followed by the N - Key while the track power is on. This will turn track power off and will cause all locos to stop. Press the PWR Key followed by Y + Key again and the locomotives will start running again at the same speed they were running prior to STOP mode. To exit PWR mode, press the PWR Key or the EXIT Key.
CV29 controls many aspects of the locomotive, including its decoder address (including two or four digit address) , normal direction of travel (NDOT), whether the locomotive opperates at 28 speed steps or 128 and others. Some older Digitrax throttles use hexadecimal notation for programming. This article is presented for the benefit of those who may still be using these throttles. CAUTION: if you are NOT using a DT100 or DT200, please disregard this article to avoid confusion.The Addition Method The table below shows each switch and its value if it is on or off. Notice that if the switch is ...
CV29 is called the configuration register. It controls the following decoder characteristics: 1. Whether the decoder uses 14 speed steps, 28/128 speed steps or loadable speed tables. This affects how smoothly the loco will move and how it responds to throttle controls.2. Whether the decoder automatically converts to analog mode when no DCC signal is present. This allows the decoder to operate on a DC layout even though it is DCC equipped.3. Defines the normal direction of travel for the locomotive. Normal Direction of Travel or NDOT can be changed when the motor connections of decoder have not been connected so that the locomotive runs ...
I entered in a locomotive address by accident. Is there a way to clear the recall stack? The only way to clear a particular address that has been stored in the recall stack is to enter additional locomotive addresses so that the address in question "rolls off" the stack.
Selecting a locomotive address to run on your DT4001. Place the locomotive you want to run on the track. Turn the throttle knob you want to run a loco on slightly counter clock-wise letting the controller know you want to address that side. 2. Press the "LOCO" key 3. Select the address of the loco by entering it using the numeric key pad.,4. Press the "LOCO" key to complete address selection.
Dispatching is a special way of offering a locomotive address to a UT1 or UT2 to run. The address is set up and then dispatched to the system to be acquired by the next throttle that presses its ACQUIRE Key. This is not the same as releasing a locomotive address from the system. Releasing an address clears it from the locomotive slot to make room for another locomotive address to be run by the command station. 1. Set the address selector switches to address “99” then press the “ACQ” button. 2. The Status LED will light green showing that you ...
Dispatching is a special feature incorporated in the LocoNet language to meet the needs of operators that wish to enforce a strict discipline in how operators gain access to locomotives during an operating session. Dispatching also lets you run consists with basic throttles that can't set up their own consists and run four digit addresses on basic throttles that only have two digit capability. It lets you have newcomers run trains on the layout without giving them access to the entire operation. When you dispatch a locomotive address or consist to your LocoNet system, you make it available to be ...
When you are finished running a locomotive address, release if from your throttle so that it is available for other throttles to select and run. This also clears slot space in your command station to allow other addresses to be run in the system. Note: Simplex Radio & Infrared Throttles must be plugged in to LocoNet to release an addresses from your throttle. Duplex radio throttles can release an address from your throttle without being plugged in to LocoNet.To release an address from a throttle: 1. Use the throttle to set the locomotive's speed to zero. 2. While the loco's address and ...
Q: I have a Digitrax DT400 throttle. The left speed knob accelerates the locos at one speed unit per "click". However the right knob accelerates at three speed units per "click". How can I change the right knob to one unit per click? There is not a way to change the clicks to one per unit. Each rotation of a throttle knob on the DT400 series throttle generates 24 clicks. Digitrax supports 14, 28 and 128 speed step operation in decoders; each click on a DT400 series throttle knob is related proportianally to the number of speed steps used by the decoder. So, for a ...
Dispatching is a special feature incorporated in the LocoNet "language" to meet the needs of operators that wish to enforce a strict discipline in how operators gain access to locomotives during an operating session.Dispatching also lets you run MUs with basic throttles (such as the Utility Throttle series) that can't set up their own MU's and run four digit addresses on basic throttles that only have two digit capability (such as UT1 and UT2). It also lets you have newcomers run trains on the layout without giving them access to the entire operation.When you dispatch a locomotive address or MU ...
DCS50 Zephyr has ten "slots" available for train control. When you are finished running a locomotive address, release it from your throttle so that it is available for other throttles to select and run and so that your command station will have room to run other addresses.To release an address from a throttle:1. With the loco address selected on the throttle, use the Throttle Knob to set the locomotive’s speed to STOP.2. Press the LOCO key to release the address from your throttle immediately. The address will begin to flash in the display.3. Press the EXIT key to dispatch the ...
Another way to describe "stealing" is "sharing"; it is a process where one operator can mutually control a mobile decoder with another operator.This feature can be useful for training new operators or supervising engineers who insist on breaking the speed limit. The supervisor can "steal" a locomotive that is selected on a trainee's throttle and be able to closely supervise that locomotive's control, taking over when necessary. The supervisor can gain instant override control without having to physically "grab" the trainee's throttle. This lets you have unskilled visitors participating and enjoying operations without too much anxiety for either party.If you ...
Stealing A Locomotive AddressDigitrax systems do not allow more than one user to select and run the same locomotive address unless the loco is “stolen” (or shared) by the new user. When an address is receiving commands from more than one throttle, it may seem to be out of control.Stealing is a safety interlock that prevents operators from automatically taking control of locos that are already selected and being run on another throttle. Occasionally you may need to override this interlock to gain control of a loco. This override is called stealing and will result in having a single loco ...
Will the Zephyr support a fast clock? Yes. Because Zephyr is fully equipped with LocoNet, it will work with LocoNet based fast clocks.
Q: How do you reverse the direction of the engine so you can run them on the same train with one in the backwards position?A: Before consisting the locos, make sure that both are traveling in the SAME PHYSICAL DIRECTION ON THE TRACK. The locomotives can be arranged in either orientation hood forward or backward as long as they are set to travel in the same physical direction when you set up the consist.(The direction indicators on the throttles may or may not match, the important thing is that the locomotives are set up to move in the same direction and are ...
1. Choose which THROTTLE knob (L or R) you want to use to run a locomotive. Make it the active throttle by turning the throttle knob a 1/4 turn in either direction or by pressing down on the knob.2. Press the SEL key. The active throttle display will begin flashing the Loco Icon, the last loco address selected on the throttle and the Lo mode indicator. Sel loco will be displayed in the Text Area of the LCD display.3. To select a 4 digit address, rotate the L THROTTLE knob to dial up the first two digits (1000s and 100s) of ...
These are the basic DT400 and DT402 series throttle operating instructions designed to get you “up and running” quickly and to minimize your “frustration level” as you learn to use the throttle. Turning Track Status On and Off To run your layout you must be sure track power and track status are both ON. Follow these steps with your DT400 or DT402 series throttle to do this. Press the "PWR" key on the bottom left side of the throttle. The words “+ON -OFF” will come on in the display. Press the “Y +” key quickly and you should see the ...
Q: I have three engines lashed together. The sound is coming through . However when I turn the knob there is no response. The engine in the window is blinking and there are two stationary dots above A: If you are using a DT300 series or DT400 series throttle, make sure that the Track Status Indicator dot in the upper right of the display just below the right throttle knob is on solid. If it is not on at all Track Power is OFF. If it is blinking, Track Status is in Idle and the throttle knobls will not move the locos. To ...
Keep Alive Power Jack (For DT200 & BT2) When the layout is powered down we recommend that you change the DT200 that is running as the Command Station to Advanced Throttle mode so it can power down and conserve its battery. Do this by pressing Run/Stop & Left Arrow keys together. All other Advanced Throttles on LocoNet will power down and show "idLE" when the LocoNet bus wires (pins 3 and 4 of the RJ12 plug) fall below +5Volts for more than 1/4 of a second. If the RailSync lines on LocoNet (pins 1 and 6 of the RJ12 plug) ...
Programming is the process of setting the configuration variables (CVs) in your decoder to the appropriate values that will make the locomotive perform the way you want it to. The first CVs that most people change are those that set the locomotive decoder's address. The mobile decoder in your locomotive usually comes pre-porgrammed to a factory default address of "03". Once you add a second locomotive, you will want to change the this new locomotive to another address. Not doing so will result in both locomotives operating at the same time when you send commands to address 03.Likewise, there are a ...
The LOCO Key is used for selecting loco addresses on to the throttles so that the address is controlled by the throttle. Sometimes people call this “assigning locos to throttles.” DT100, DT200, & DT300 series throttles used the SEL or SET/SEL Keys for this throttle task.
One of the basic problems encountered with command control systems is when things simply are not working. Period. Even after vigorous exhortation on your part, and perhaps even some enthusiastic train table banging, nothing is running. At this point, it is time to gather your wits and your patience for a debugging session. The first step to determining how to proceed is to determine if the problem with the electronics or with the layout? The tendency is to blame the electronics, after all it is a black box. But don't jump to conclusions so quickly! Be patient and follow the ...
Q: I am looking for a wrist or neck strap for a UT4R/UT4D to prevent dropping unit. Can you help with a source? A: It is really hard on the throttles when you drop them on the floor.Here's a handy tip from Zana: Take the throttle cord and loop it with a rubber band and hang it from a Digitrax show lanyard (any other lanyard will do in a pinch). You can also install hooks on the fascia of your layout for holding throttles with looped cords.I have also seen customers glue things to the back of the throttle for ...
Why do my trains start moving at 25% throttle?You may need to adjust some CV valuesCheck the value of CV02, start voltage; the default setting is 0 (zero). You may need to adjust this value.Check the value of CV03, acceleration rate; the default setting is also 0. It is possible that the locomotive has been set for a slow acceleration rate.You can also adjust how each locomotive responds to throttle inputs by programming loadable speed tables or 3 step speed tables.If you decide to reset the decoder to factory default values , set CV08 to a value of 08 to reset the decoder back ...
When your throttle is not in use, we recommend that you store the throttle by removing the battery and putting it back in the battery compartment with the polarity reversed. Be careful here, see Diagram 4 for proper orientation. Although this example is for the DT400, the same caution applies to all other Digitrax throttles. When the battery is placed in the incorrect orientation, the battery terminals short out against the battery tensioning spring (on left), causing the battery to rapidly discharge and get very hot in the process. Correct: Incorrect:
Digitrax UT4 Throttle Operating Instructions by Dan Bourque Selecting a locomotive or consist 1. Dial the 4-digit locomotive address into the “LOCO ADDRESS” dials - For a consist, the address will normally be the lead locomotive - For a 3-digit locomotive number, use “0” for the first digit 2. Plug the throttle into any receptacle on the layout fascia (e.g. Digitrax UP5) 3. Press the “SEL” key, the ST light on the throttle should turn green 4. Move the direction selector on the throttle to either “R” or “F” 5. Move the ...
Q: I have read in some of the model magazines that the F2 button on the DT400 is a pressure sensitive playable whistle button. I have not noticed any difference in sound with the F2 button on my DT400. Is there some way to determine if this feature is present on my throttle? A: Most Digitrax DT400 and all DT402 series throttles have the capability of implementing the playable whistle feature when used with Digitrax sound decoders.Prior to the release of Digitrax sound decoders this feature was considered as an experimental throttle feature and was not fully documented. Once Digitrax released ...
Your locomotives look like the real thing, Digitrax LocoMotion™ System makes them run like the real thing, too! 128 speed step control. Smooth deceleration to stop before changing direction when locomotive is reversed. No sudden, non-prototypical stops! Torque compensation for the smoothest operation ever. Momentum with acceleration and deceleration settings. Set normal direction of travel for your loco. Switching speed feature for quick access to slower switching speeds. Simple 3 step speed tables are easy to set up. Advanced 28 step speed tables with 256 level resolution. Scaleable speed stabilization feature. ...
Changing the Direction switch on the top left hand side of the UT4 from Forward (F) to the center Brake (B) position causes the loco to stop at the locomotive’s programmed deceleration rate. Changing quickly from ‘F’ to ‘R’ (Reverse) causes the loco to stop at the programmed deceleration rate, then reverse direction and accelerate at the locomotive’s programmed acceleration rate.
UT4 Sleep Mode is used to extend throttle battery life; it does not charge the throttle batteries but it does reduce the draw on the throttles' batteries.To put the UT4 to sleep, press and hold any function key down and turn any address selector to the next digit. The throttle will go into sleep mode. The UT4 will release the address that was selected and the status light will briefly turn red. If the unit is plugged into LocoNet port you can unplug the throttle and the throttle will then be in sleep mode until plugged back in to LocoNet ...
CV08 is the factory reset CV for all FX3 decoders and also the Manufacturer ID CV for all decoders.When you read the value of CV08, Digitrax decoders report back "129".To reset all CV values to their factory default, program CV08 to a value of 008 while the locomotive is on the programming track.To reset all CV values except for 28 step speed tables to their factory values set CV08 to a value of 009.Note: Performing a factory reset will not affect the manufacturer ID and will reset the decoder's address to the factory default of 03, a 2 digit address.
If you break or lose the battery cover for your DT500 series, DT402 series, DT400 series, DT300 series,DT100 series, or UT series you will need a replacement cover. With these throttles being discontinued, we no longer have any battery covers availabe. Serpac produces the throttle case we used. You can order a case through them or other big box electronics warehouses.
Consisting is the action of linking more than one locomotive or power unit together to be controlled by a single locomotive address. The UT4 is not capable of building or breaking up a consist. This is handled by a throttle or computer program that is able to build and break up consists and then hand the consist off to the utility throttle operator. Utility throttles are designed to be simple to use for operators on the railroad. The UT4 CAN control a consist by selecting the address of the TOP loco in the consist. It can also control the functions of locomotives within a consist.If ...
Deceleration is the rate at which the decoder decreases from one speed step to the next in response to a new command to decrease speed. CV04, deceleration, lets you simulate locomotive braking action. The range of values for CV04, deceleration, is 000 to 031 (x00 to x1F hex). A value of 00 causes an immediate response to a new command to decrease speed. As you increase the CV value programmed into CV04, the rate of speed step change is approximately 1/10 second per increment in deceleration value. For example a value of 01 programmed to CV04 causes the decoder to change ...
Acceleration is the rate at which the decoder increases from one speed step to the next in response to a new command to increase speed. CV03, acceleration, lets you simulate train weight or inertia. The range of values for acceleration is 000 to 031 (x00 to x1F hex). Setting CV03 to a value of 00 generates an immediate response to a new command to increase speed. As you increase the CV value programmed into CV03, the rate of speed step change is approximately 1/10 second per increment in acceleration value. For example, a value of 01 programmed to CV03 will ...
While the DT400 series throttle is being used tetherless, there are occasions when you may want to disable the throttle's controls to prevent accidental commands being sent to the railroad. For example, your train is in a siding waiting for another train to pass. You put your throttle in your pocket and go take a break. By locking the throttle controls, you will not be able to accidentally start your train if you bump your throttle knob or press the Y + Key . To lock the controls on your DT400 1. Press both the Y + and the N ...
For normal tethered operation, DT402/DT400 throttles do not need a battery. If you want to use your DT402/DT400 as an infrared or radio throttle (R & D version), you must install a 9 volt battery. You can use rechargeable batteries.DO NOT USE ANY OTHER TYPE OF BATTERY-AA BATTERIES DO NOT WORK. When you install the battery, the throttle will report the battery voltage and then display Idle. Once you plug in to LocoNet, the throttles will begin operating infrared and Ds and Rs will begin operating as duplex and simplex radio throttles. We recommend that you remove the battery from throttle if it is unplugged ...
Decoders with FX3 features have 8 user configurable, independent special effects generators. All current production Digitrax Decoders use FX3 function features. These are set up by programming CV values as described below. If your decoder is not a Series 3 decoder, please check the spec sheet to determine which type of functions it supports.FX3 functions incorporate FX generators with additional dynamic and static qualifiers. FX3 functions are fully remappable so they can be controlled by any function key on your system. A master light switch can be set up to turn off all lights on a locomotive. Functions associated with advanced ...
Decoders with FX function features have 4 user configurable, independent special effects generators. All current production Digitrax Decoders use FX3 functions so this article is not applicapable to these decoders. CAUTION: Decoders with FX3 function generators use different CVs to control the decoder outputs. All current production Digitrax decoders use FX3 function CVs. Before using these CVs to program your decoders make sure that they are FX and not FX3 decoders.The Real FX effects are set up by programming CV values as described below.F1/F2 NOTE: If using DH142, DN142, DN141K2, DN149K2 series decoder, when F1 is set up for FX, ...
Stealing, or "sharing" is defined as acquiring control of a loco address that is being used by someone else on another throttle. To ‘Steal’ a loco:1. Unplug the UT4 from the LocoNet port.2. Dial up the address of the loco you want to steal.3. Press and hold the ‘STEAL’ key while plugging the throttle into the LocoNet jack. Note: To steal or dispatch another loco, you must unplug the UT4 and repeat the above sequence.
Fast clock caution: If you use power save mode, the DT400/R’s local fast clock copy will deviate from the LocoNet system clock. The fast clock will re-synchronize with your LocoNet system fast clock when it is plugged in again.
Configurable strobes are set up using CV's 49, 50 and 61. Configurable strobe function leads can be programmed with a limited number of simulated lighting effects similar to FX effects but without as many options. Configurable strobes are offered in those few Digitrax decoders where there was not enough "code space" to provide full FX features.CV49 controls F0 Forward, the white function lead. CV50 controls F0 reverse, the yellow function lead.CV61 enables the configurable strobe operation.To set up configurable strobe lights:1. Program CV61 with the CV value "01" to enable configurable strobe operation.2. Program the CV value for CVs 49 ...
If the layout starts to “get away” on you, either PRESS the PWR Key followed by the N- Key or, turn the track power to “SLEEP” on the command station. Either way, the layout will stop to give you a chance to regain your composure. To resume operations where you left off, press the PWR Key followed by the Y+ Key
If your DT402 or DT400 display isn’t showing you what you expect based on the manual, press the EXIT Key to return to normal operating mode-Fn. Then try the throttle task again.
Hooking up the UP5's Power Supply (Optional but highly recommended to make sure LocoNet voltage is adequate to control large layouts)The optional power supply (PS14) can be connected to one or more UP and/or UR panels to provide additional power for LocoNet operation and for battery saving power to any Digitrax throttle that is plugged into any of the powered panels.1. Plug the PS14 into the DC jack located on the side of the UP5 circuit board.2. Connect the +Common point on each additional board (located between the two LocoNet jacks) to the powered board with 22AWG wire (Figure 2). ...
To change DT400 Option Settings 1. Consult the Throttle Option Setting Tables found in the DT400 manual to determine which settings you want to make for each of the 6 available options. 2. Press the OPTN t Key and the display will show: 3. The right side of the display will show the current value for OP#1. The default setting for OP#1 is x01. Notice that these values are entered in hex format. The “x” in front of the value lets you know to expect to use hex numbers. Pressing the throttle keys will not change to decimal values in this ...
DT402 & DT400 can be set to click each time you press a key or turn one of the knobs. Some users prefer this auditory feed back and others don’t. DT402 & DT400 throttles are shipped with key & knob clicks enabled.
Ballistic TrackingWith ballistic tracking, the faster you increase or decrease the the throttle knob, the faster the data changes in the throttle. When ballistic tracking is enabled, so are typematic keys. With typematic keys, when you press and hold the Y + or N - Keys, the values will continue to increase or decrease without having to do a separate key press for each increment. DT402/DT400 are shipped with ballistic tracking enabled as the factory default setting. Straight Line TrackingWith straight line tracking each movement of the throttle knob causes a fixed rate of change. When you use straight line ...
Throttle Option 2Throttle Default Decoder Status 128/28/14 speed steps Each DT402/DT400 can be set up to operate new decoders selected by that throttle as any decoder status code you choose. New decoders are defined as decoders that have not been selected in your system. Your throttle's default setting is to operate decoders that are 128 speed step capable, so when a new decoder is selected the throttle automaticaly assumse that all decoders selected are that 128 speed steps. If you operate mostly decoders that are only able to recognize 28 speed steps, you can change this setting.Tetherless Operation Mode Each throttle can be set up with radio ...
UT4 Function Control Keys and How they WorkThere are 8 physical keys used to control functions F0-F12 on the UT4 throttle. F1 through F6 and F7-F12 share the same keys. You will see F1-F6 in black print and F7-F12 in blue print to remind you that you will need to use the SHIFT key to access F7-F12. To use functions F7-F12 you must press and hold down the SHIFT key on the lower left row of the throttle as you press the F7 through F12 keys to activate any functions available on those functions. All the UT4 functions work like other Digitrax throttles. ...
While it is running as a tetherless throttle, the DT402 and DT400 R and D versions automatically check the power available to the throttle each time a battery is inserted and each time it is plugged into or unplugged from LocoNet. The battery's voltage will be displayed in the text area of the throttle briefly each time the throttle is plugged in or is unplugged from LocoNet. When you plug in to LocoNet the number displayed will be the power provided by LocoNet. This value will be between 9 & 15 volts. Other characters will also be displayed in the LCD depending on ...
Dispatching is the process of releasing a loco so that another user can take control of it. To release, or dispatch, a loco under current UT4 control:1. Unplug the UT4 from the LocoNet port.2. Press and hold the DISP (Dispatch) key.3. Plug the throttle back into a LocoNet port.
My club uses UT4R radio throttles. At the end of the session they ask that the battery be reversed in the throttle housing to "extend battery life". This effectively reverses the polarity of the battery in the throttle. Is this step necessary? Is there any drain on the battery when the throttle is not in use? If there is a drain, should the battery then be removed for storage? So my question is: How should you store a UT4R so as not to drain the battery when the throttle is not being used? The throttle batteries will indeed drain if ...
Many operators use a fast clock during operating sessions to simulate prototypical operations. Traditionally, the fast clock is on the wall in view of the train operators; it is set up to run at a faster than real time so that an operating session can simulate prototypical operation on a compressed time scale. LocoNet has its own networked fast clock for all Digitrax throttles connected to your system. The fast clock display is a 4 digit 12 or 24 Hour format clock. To display the fast clock simply press the CLOC c Key. The fast clock display will remain active while ...
If you are NOT plugged into a LocoNet port1. Use the 4 rotary address selector knobs on your UT4 to dial up the 2 or 4 digit address of the locomotive you want to run. To enter a 2-digit addresses, set the first two selector knobs to 0 and enter the two digit address on the 2 address selector knobs on the right hand side of the throttle (for example 0025).2. Plug the UT4 into any LocoNet port and automatic selection occurs.3. A Green Status light confirms that selection has been done successfully - You’re off and running!4. A Red Status light means the loco is ...
Digitrax UT4D Throttle Operating Instructions by Dan Bourque v1.0 Selecting a locomotive or consist 1. Dial the 4-digit locomotive address into the “LOCO ADDRESS” dials - For a consist, the address will normally be the lead locomotive - For a 3-digit locomotive number, use “0” for the first digit 2. Press the “SEL” key, the ST light on the throttle should flash green 3. Move the direction selector on the throttle to either “R” or “F” 4. Move the speed knob until train moves 5. For headlight, press the “F0” key (“F3” will ...
In addition to the locomotive address, there are different Configuration Variables (CV's) that have been defined to handle many characteristics you might want to use for your locomotives. These include operational characteristics such as acceleration, headlight functions and others. The manual for each decoder type has a complete listing of CVs that are available in specific decoders, what they do and the suggested values for each CV. Simpler decoders have few CVs while advanced decoders may have many different CVs 1. Place the decoder equipped locomotive you want to program on the programming track If you are using operations mode ...
All CV values except for 2 digit and 4 digit addresses can be displayed as either decimal or hexadecimal numbers by the DT400. When you are using the L Throttle knob to browse through CVs 002 through 255, you will use the R Throttle knob to set the CV value you want to program.By default, the DT400 displays the CV values as decimal numbers 000-255 (nnn). To view the numbers as hexadecimal simply press the R throttle knob and you will see the CV value change to the hex equivalent of the decimal. Hex numbers are displayed as xnn. For ...
Duplex Radio Throttle do not need to be plugged in to LocoNet to Program Decoders. Simplex Radio & Infrared throttles must be plugged in to LocoNet to program CVs on the programming track. Ops Mode Programming can be done without plugging radio throttles in to LocoNet. IR throttles must be plugged in for Ops Mode Programming. 1. Be sure that only the loco you want to program is on the programming track. If you are using operations mode programming, the loco you want to program can be anywhere on the layout but it must have a decoder that is ...
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 ...
DT400 Series Throttles - Make F2 Latching or Non-latching The F2 button on the DT400 is meant to control locomotive whistles and horns, so it is configured to be "momentary" or non-latching. This means that the key will activate the horn or other function for as long as you hold the key down and stop when it is released. This was done to facilitate the use of a playable whistle in sound decoders. If you are not using F2 for this purpose on your layout, you can change the way the F2 key on the throttle works so that it latches on and ...
DT402 & DT400 Series Throttles Locomotive Directrion Control There are two ways to change the direction of the locomotive address from the DT402 and DT400 Series Throttles:Double click the Throttle Knob to reverse the direction of a locomotive running on that throttle:1. Double click the Throttle knob that is controlling the locomotive. Press down on the knob quickly two times (2 distinct key presses within 1/2 second).2. The locomotive selected on that throttle will change direction.3. Repeat the process to reverse again, etc.4. Double clicking the R Throttle knob will reverse only the locomotive running on that throttle. Double click ...
What happens when I select a loco that is currently running at a different speed than the throttle is set to? example... running loco 'a' at half speed then switch to loco 'b' does loco 'b' suddenly change speed to half throttle? (which is the last position the knob was indicating for loco 'a' this would make for a nice crash if I planned on backing loco 'b' out of a siding, and it goes forward instead at 50% right into a bumper) You're right, when switching the loco 'b', the newly selected locomotive would be commanded to operate at ...
DT402 & DT400 series throttles have two ways of doing an emergency stop. When you use Emergency Stop, the deceleration rate programmed into the decoder will not have an effect and the stop will be immediate.Local Stop Press the EMRG STOP Key to stop the loco that is active in the throttle display. To resume operation, use the throttle knob associated with that address to increase the loco’s speed.Press the EMRG STOP Key again to stop the loco that is associated with the other throttle on the DT400 or DT402 series throttle. To resume operation, each operator must use their throttle to set ...
Bring Your Locomotive to a Compete Stop Turn the Throttle Knob that the loco address is selected on counterclockwise until the speed display shows 00 and the loco stops moving. This lets you slow down your loco and stop it in a prototypical manner.If you have set up deceleration for the loco and you move the throttle knob to 0% speed, your loco will slow down and come to a stop at the programmed deceleration CV value. We strongly recommend that you run your locos with the factory default of no deceleration until you are familiar with your system. If ...
DT402 & DT400 Series Throttle - Locomotive Speed Control To control the speed of a locomotive:1. Select the loco address on either throttle2. Turn the throttle knob clockwise to increase speed and counterclockwise to decrease speed or3. Use the Y + & N- Keys to increase and decrease speed.The % of full speed will be displayed in the text line of the display on the L or R side depending on which throttle is controlling the loco. The % of full speed will also be displayed on the bar graph above the text area in the display.If a loco address is ...
Stealing is also known as Forcing An Address Selection or SharingIf you try to select a loco address that is already selected on another throttle the DT400 will display “Steal?=Y” in the text area. This is a safety interlock to prevent operators from taking control of locos that are already selected on other throttles. Occasionally it is necessary to override this interlock to gain control of a loco that is “lost” for whatever reason. This override is called stealing & can result in having a single loco address selected on two different throttles at the same time.To steal an address ...
DT402 & DT400 Series Throttle-Locomotive Recall The DT402 & DT400 Series Throttles store the last 4, 8,or 16 unique loco addresses used by the throttle in a recall stack; your throttle defaults to a 4 address recall stack. Users often discover this feature when taking their throttle for use on another Digitrax railroad; they plug their throttle into the new LocoNet and discover their own locomotive addresses are still in their throttle. The presence of stored locomotive addresses may make operations on your railroad easier.For example if you have your throttle set up for an 8 deep recall stack and the last 8 ...
DT402 & DT400 Selecting and Running A Locomotive If a throttle knob does not have a locomotive selected when you make it active by turning or pressing the L or R Throttle knob or Reverse Key, flashing “SEL” will appear in place of the locomotive address in the LCD display. This is a prompt for you to select a locomotive on that throttle. 1. Choose which Throttle (L or R) you want to use to run a locomotive.Make it the active throttle by turning it a 1/4 turn in either direction or by single clicking the throttle knob. If there ...
DT402 & DT400 Series Throttles Track Power ON and OFF When track power is on: The Throttle's Track Power Indicator is on solid (small dot in the top line on the right side of the LCD) Command Station TRACK STATUS indicator is lit and Command Station OFF LINE indicator is off To turn track power on: Press the PWR Key and the LCD will display a screen similar to this: Press the Y + Key to turn on track power. Press the PWR Key again to exit Power On/Off Mode. You may also press any other key to go directly ...
There is a numeric keypad on the DT402/DT400 throttle. The numeric keys on the keypad are primarily related to the throttle mode shown in the LCD’s mode indicator area, but can be used for numeric entry and function control in other modes. For example, when the command station is in the Function Mode Fn, the numeric keys are used for function control. When the command station is in the Locomotive Mode,Lo, the numeric keys are used to enter loco addresses. When the command station is in the Switch Mode is Sw, the numeric keys are used to enter switch addresses.In ...
Your DT402/DT400 throttle comes from the factory set for “Local” Stop. When you press the EMRG STOP Key , the loco address that is active on your display (the one with the blinking smoke) will stop.When you press the EMRG STOP Key again, the loco address on the other throttle of your DT400 will stop.You can use the OPTN t Key to change the EMRG STOP to “Global” Stop.With global stop option enabled, pressing the EMRG STOP Key will stop all locos on the layout and you will see the throttle's track power indicator blinking on and off.To resume operations, press ...
The ENTER key is used to complete the current throttle task and return to Fn mode for normal operations.
The EXIT Key is used to exit the current throttle task without making changes. Pressing this key will usually return the DT402 and DT400 series throttles to Fn mode for regular locomotive operation.
The CLOC, "c" Key is used to toggle between displaying and not displaying the current fast clock time. It is also used to issue c (closed) commands when the throttle is in Switch mode.In the case of turnout control:c=closed, when a "c" command is sent, the turnout is set for the main line with routing through the straight leg of the turnout.
The OPTN t Key is used to enter the Option Mode to set throttle and system options. It is also used to issue t (thrown) commands when the throttle is in Switch mode.In the case of turnout control:t=thrown, when a "t" command is sent, the turnout is set for the diverging route through the curved leg.
The PWR Key is used to enter power mode for turning layout power on and off. Once you press this key, you will be prompted to use the Y+ key to turn power on or the N- Key to turn power off. The PWR Key is also used to turn on and off the flashlight feature. The flashlight LED will be on as long as you hold down the PWR Key.
The BACK key lets you go back one step.
The EDIT Key is used to enter the Edit Mode for editing the fast clock, routes, signaling, etc. It is also used to status edit decoders while in locomotive address selection mode.
Although the UT1 can only handle addresses between 00 and 99, it can be used to operate one four digit locomotive address. 1. On the UT1 dial up 992. On a DT100, DT300 or DT400 series throttle, dispatch the four digit address you want to run on the UT13. On the UT1 press the ACQ (acquire button) to run the four digit addressNote that dispatching is a special state and the first UT1 throttle to press the Acquire button after the dispatch from another throttle will acquire that address to run.
The DISP Key is used both for displaying programming information and dispatching loco addresses.
With ballistic tracking, the faster you increase or decrease turning the throttle knob, the faster the data changes in the throttle. When ballistic tracking is enabled, so are typematic keys. With typematic keys, when you press and hold the Y +or N - Keys, the values will continue to increase or decrease without having to do a separate key press for each increment.With straight line tracking each movement of the throttle knob causes a fixed rate of change. When you use straight line tracking, typematic key action is off. This means that you must press each key once to cause ...
The DT402/DT400 Throttles include two multipurpose keys.The Y + and N - Keys are used: To turn track power on and off To increase or decrease loco speed To link and unlink locos during MU’ing To accomplish tasks using system editors These two keys can be set up to act in two different ways:Repeating: so that if you hold a key down it will continue to increase or decrease step by step until you release the key. This option is active when your throttle is set up for ballistic tracking. Your DT402/DT402 throttles are shipped from the factory ...
The L & R Direction Reverse Keys change the direction of travel of the loco on the related throttle when the throttle is in Fn (Normal Operation) Mode. The R Direction Reverse Key changes direction of the address on the “R” or Right Throttle. The L Direction Reverse Key changes direction of the address on the “L” or Left Throttle. You can also reverse the locomotive by double clicking the throttle knob.
The SWCH Key is used for entering switch control mode. Once this key is pressed, you will be prompted to select a switch address and issue a thrown or closed command. Switch control mode is used in normal operation for operating turnout machines and in set up mode for setting up option switches in the throttle and command station.
The MU Key is used to enter consist or multiple unit (MU) set up mode.Once the MU Key is pressed, you will be prompted by the throttle to use the Y+ Or N- Keys to add locos to or remove locos from consists (MUs)
The FUNC Key is used to enter function control mode. Function control mode is the default mode for normal locomotive operation with the DT402/DT400 Series Throttles. Press this key during any throttle task to return to normal loco operation mode with function controls active on the numeric keypad.
The L & R Semaphore Indicators are used when cab signaling is implemented on the layout. These semaphores offer three indications:
The tetherless indicator shows when your throttle is using either infrared or radio communications.
The DT400 display LCD includes a small star shaped dot which indicates the status of the track power. No indicator = System track power is OFF (Press PWR followed by N-)Indicator On Steady = System track power is ON (Press PWR followed by Y+)Blinking Indicator = System is in “STOP” and track power is ON (Press PWR followed by Y+ and Y+ again)
The DT400 includes an LCD information display. This display includes information about the active functions of the selected locomotive. The functions 0-12 which on or off for the currently active loco address are displayed on the top line of the LCD. The functions for the active throttle (the one with blinking smoke) are displayed. To view the function status of either throttle, simply press the throttle knob to display the active functions for that throttle.
Each throttle has a bar graph located above the text area of the LCD. Each bar graph indicates the speed setting of the L & R Throttles graphically from a single dot (0% throttle) to 20 dots (full throttle). This is useful when the text area is showing information other than speed.
The Text Area of the LCD consists of the eight characters in the middle line of the display. This is where information like locomotive speed, decoder status, turnout position, fast clock, text prompts, messages and programming data are displayed.
The DT402/DT402 series throttles have displays which give you information about the performance of your railroad.The decoder address selected on the L Throttle is displayed on the bottom line of the LCD to the left of the Mode Indicator. The decoder address selected on the R Throttle is displayed on to the right of the Mode Indicator. The address can show as either the 2-digit or the 4-digit decoder address. If no address is selected the display will show “SEL.” If a 2-digit address is selected (00-127), the display will show two or three digits. If a 4-digit address is ...
The mode indicator, located at the bottom center of the LCD, shows the DT402/DT400 series throttles' current mode of operations. The DT400 automatically defaults to the Fn mode & returns to this mode whenever the EXIT Key is pressed. The Mode indicator usually shows what the numeric keys are associated with. For example, in Fn mode, any entry on the numeric keypad will affect functions. In Sw mode, keypad entries will change turnouts and in Lo mode, entries on the keypad will enter loco address numbers, etc.
The Smoke Icon is located just above the Loco Icon. Both the L & R Throttles have a smoke icon. If a loco is selected on either throttle, the Loco icon will appear beside the address of that loco. If nothing is selected, there will be no Loco icon and the address area will show SEL. The blinking smoke icon indicates which throttle is currently active (having its function states displayed in the top line of the LCD). Since both throttles must share the keypad, only one at a time can have access to the keypad and function controls. The ...