Digitrax UT1 User manual

RDigitrax
Command
Control
L
o
c
o
N
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UT1
& UT2
LocoNet Utility Throttle Manual
Digitrax, Inc.
450 Cemetery ST #206
Norcross, GA 30071 USA
[phone] Fax [phone]
www.digitrax.com
Digitrax Manuals & Instructions are updated periodically.
Please visit www.digitrax.com for the latest version of all manuals.
This manual was updated 06/03.

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1.0 UT1 & UT2 Utility Throttle Features & Specifications 3
2.0 Using your UT Throttle 3
2.1 Turning On Track Power 4
2.2 Turning Off Track Power 4
2.3 Running a Locomotive 4
2.3.1 Run An Analog Locomotive on Address "00" 4
2.3.2 Run A DCC Equipped Locomotive 6
3.0 UT1 Throttle Control Panel 7
3.1 General color codes 7
3.2 The Throttle Knob 7
3.3 Direction Toggle Switch 7
3.4 Address Selector Rotary Dials 8
3.5 Status Indicator 8
3.6 Shift Key 8
3.7 Run/Stop Key 8
3.8 ACQ/DISP Key 8
3.9 F0/F3 Key 8
3.10 F1/F4/ON Key 9
3.11 F2/F5/OFF Key 9
3.12 Four Top Row LEDs (Chase Lights) 9
4.0 UT2 Throttle Control Panel 10
4.1 General Color Codes 10
4.2 The Throttle Knob 10
4.3 Direction Toggle Switch 11
4.4 Address Selector Rotary Dials 11
4.5 Status Indicator 11
4.6 PROG/SHIFT Key 11
4.7 Run/Stop Key 11
4.8 ACQ/DISP Key 11
4.9 F0/F3/ADR Key 12
4.10 F1/F4/ON/CV# Key 12
4.11 F2/F5/OFF/CV VAL Key 12
4.12 Four Top Row LEDs (Chase Lights) 12
5.0 UT Throttle: System Modes 12
5.1 UT Throttle Configuration Mode 12
5.1.1 UT Throttle Configuration Options 12
5.1.2 UT Throttle ID Number 13
5.2 Track Power Mode 13
5.3 Walkaround Operation on LocoNet 13
5.4 Stop Mode 14
5.5 Address Mode 14
5.6 UT2 Programming Mode 15
UT1 & UT2 LocoNet Utility Throttle Manual
Table of Contents

5.6.1 Loadable Speed Tables 18
5.7 Status Editing Mode 18
5.8 Switch Mode 18
6.0 Running Trains 19
6.1 Locomotive Speed Control 19
6.2 Locomotive Direction Control 19
6.3 Selecting a Locomotive (Safe Mode) 19
6.4 Selecting A Locomotive (Quik Mode) 20
6.5 Dispatching Locomotives 21
6.6 Controlling Lights & Functions 23
6.6.1 Controlling Functions on Consisted Locos 23
7.0 Troubleshooting 24
7.1 Clean Track 24
7.2 UT Throttle Won't power up when plugged in (LEDs Flicker) 24
7.3 Decoder Won't Respond 24
7.4 Emergency Stop 24
7.5 Mechanical Drive Train Problems 25
8.0 FCC Information 25
9.0 Warranty and Repair Information 25
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Digitrax, LocoNet and others included in this manual are trademarks
of Digitrax, Inc.
Digitrax, Inc. is not responsible for unintentional errors
or omissions in this document.
©Digitrax, Inc. All Rights Reserved. Printed in USA
UT1 & UT2 LocoNet Utility Throttle Manual
Table of Contents (continued)

1.0 UT1 & UT2 Utility Throttle Features & Specifications
· The UT Throttles are "traditional" hand held DCC throttles. The UT
Throttles are laid out with a single knob for speed control and a sim-
ple toggle switch for direction.
· Digitrax LocoNet network forms a simple, reliable interconnect
between all Digitrax Command Control System components using
extremely reliable and convenient gold plated RJ12 6 pin modular
telephone jacks.
· Control up to 98 locomotives (97 DCC & 1 Analog)
· 128 speed step operation!
· Simple locomotive selection using two rotary selectors.
· Control directional lighting & 5 additional function outputs from the
keypad. If you have locomotive equipped with sound, controls for
bell & whistle are on F1 & F2. F2 is a non-latching control that
allows you to sound the horn for as long as the key is held down. F2
can be configured to be non-latching.
· F3 can be configured to be momentary for remote coupler functions,
etc...
· Special "DISPATCH" function to allow consists or 4 digit addresses
to be operated by the UT Throttle.
· "SAFE" mode operation allows smooth pick-up and or release of
trains or locomotives.
· UT1 does not have programming capabilities. UT2 can program
decoder CVs 01-99.
Your success with and enjoyment of our products are very important to
us. After all, this is a hobby and it is FUN!!! Please read this manu-
al carefully before you install your system. We have included lots of
hints and operating ideas based on our experience with the Digitrax
system. If you have questions not covered by this manual please
contact your dealer or Digitrax.
2.0 Using your UT Throttle
For operation, the UT Throttle does not need a battery. The UT Throttle
will remember the last throttle settings after it is unplugged from
LocoNet and will resume when it is plugged back into LocoNet.
Plug the UT Throttle into any LocoNet jack on your LocoNet system
When the UT Throttle is first connected to LocoNet all the LEDs in its
display will blink on and then off again. This means that the throttle
is working and is communicating as it should.
3

2.1 Turning On Track Power
Turn on the track power by pressing and holding the "RUN/STOP" button, then
simultaneously pressing the "ON/F1" button. The command station will beep
once and the "TRACK STATUS" light on the command station will come on.
2.2 Turning Off Track Power
Turn off the track power by pressing and holding the "RUN/STOP" but-
ton, then simultaneously pressing the "OFF/F2"button. The com-
mand station will beep once and the "TRACK STATUS" light on the
command station will go off.
2.3 Running a Locomotive
Connect your UT Throttle to any LocoNet jack connected to the command
station in your LocoNet system.
2.3.1 Run An Analog Locomotive on Address "00"
The address "00" is reserved for "Analog" locomotives or any locomotive not
equipped with a decoder.
1. Place a non-decoder equipped locomotive on the track. The locomo-
tive will make a "humming noise", this is the normal sound an ana-
log locomotive will make on a DCC layout.
2. Select the two digit address "00" of the analog locomotive you want
to run using the rotary dial selectors on the UT Throttle. The left
rotary dial selects the "tens" and the right rotary dial selects the
"ones".
3. Press "ACQ/DISP" to select locomotive. The "STATUS" INDICA-
TOR should be a steady green to indicate that you now control that
locomotive.
4. If the "STATUS" INDICATOR is off, the locomotive that you tried
to select is already being controlled by another throttle in the system
and is not available.
5. A red "STATUS" INDICATOR indicates that the direction switch is
not set to the same direction as the locomotive you are trying to
select. Reverse the direction toggle switch and the "STATUS" INDI-
CATOR will turn green.
6. Strobing green "Chase Lights" across the top of the keyboard indi-
cate the throttle speed is higher or lower than the locomotive you
are trying to select. If the LEDs are strobing Left to Right, turn the
throttle knob clockwise until the LEDs stop strobing and the "STA-
TUS" INDICATOR turns green. If the LEDs are strobing Right to
Left, turn the throttle knob counter clockwise until the LEDs stop
strobing and the "STATUS" INDICATOR turns green. NOTE: if the
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"STATUS" INDICATOR is red then change the direction of the tog-
gle switch.
7. Flipping the toggle switch to the left will make the locomotive go
forward. Flipping the toggle to the right will make the locomotive
go in reverse.
8. Turn the throttle knob clockwise to increase speed and counter
clockwise to decrease the speed. The throttle knob can rotate
approximately. 300 degrees from start to stop.
2.3.2 Run A DCC Equipped Locomotive
Connect your UT Throttle to any LocoNet jack on your LocoNet System.
In order to select a DCC locomotive, you must know its address. All
Digitrax decoders are factory programmed to the default 2 digit
short address "03." If your decoder has not been re-programmed
then select "03" as the address.
1. Select the two digit address "03" of the DCC locomotive you want
to run using the rotary selectors on the UT Throttle. The left rotary
selects the "tens" and the right rotary selects the "ones".
2. Press "ACQ/DISP" to select locomotive. The "STATUS" INDICA-
TOR should be a steady green to indicate that you now control that
locomotive.
3. If the "STATUS" Indicator is dark, the locomotive that you tried to
select is already being controlled by another throttle in the system
and is not available.
4. A red "STATUS" INDICATOR indicates that the direction switch is
not set to the same direction as the locomotive you are trying to
select. Reverse the direction toggle switch and the "STATUS" INDI-
CATOR will turn green.
5. Strobing green "Chase Lights" across the top of the keyboard indi-
cate the throttle speed is higher or lower than the locomotive you
are trying to select. If the LEDs are strobing Left to Right, turn the
throttle knob clockwise until the LEDs stop strobing and the "STA-
TUS" INDICATOR turns green. If the LEDs are strobing Right to
Left, turn the throttle knob counter clockwise until the LEDs stop
strobing and the "STATUS" LED turns green. NOTE: if the "STA-
TUS" INDICATOR is red then change the direction of the toggle
switch.
6. Flipping the toggle switch to the right will make the locomotive go
forward. Flipping the toggle to the left will make the locomotive go
in reverse.
7. Turn the throttle knob clockwise to increase speed and counter
clockwise to decrease the speed. The throttle knob can rotate
approximately. 300 degrees from start to stop.
5

UT1 Throttle Diagram
3.0 UT1 Throttle Control Panel
3.1 General color codes
The UT1 is color coded according to how the keys are used.
The only RED key is Run/Stop. This is so you can't miss it in case of
emergency.
The BLUE keys are used in conjunction with the "SHIFT" key.
3.2 The Throttle Knob
Turn clockwise to increase the speed of your locomotive. Turn counter
clockwise to decrease the speed of your locomotive. There is about
300 degrees of rotation from 0 speed to full throttle.
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R
LOCO ADDRESS
ST
F4 F5
UT1
F3
RUN
STOP
SHIFT
ACQ
DISP
ON OFF
F0 F1 F2
00
Throttle Knob
Section 3.2
D
irection Toggle Switch
Section 3.3
Rotary
Address Selector
Section 3.4
Status
Indicato
r
Section 3
.5
Shift
Section 3.6 Run/Stop
Section 3.7
ACQ/DISP
Section 3.8
F0/F3
Section 3.9
F1/F4
Section 3.10 F2/F5
Section 3.11
Green LED Indicators
Section 3.12
Rotary
Address Selector
Section 3.4

3.3 Direction Toggle Switch
Flip to the right for forward direction and to the left for reverse direction.
3.4 Address Selector Rotary Dials
Rotate these two selectors to select the two digit address ( 00 to 98 ) of
the locomotive you wish to control. The left selector dials in the 10s
and the Right selector dials in the 1s. Select address "99" to select a
locomotive or consist that has been "DISPATCHED" from another
Digitrax throttle. (See section on dispatched locomotives.)
3.5 Status Indicator
Indicates the status of the UT1.
·Off indicates no locomotive is currently selected.
·Green indicates a locomotive has been successfully selected.
·Red indicates the direction and/or speed are out of correspondence
on a locomotive being selected.
·Blinking orange indicates the UT1 is in "Switch Mode".
3.6 Shift Key
· Press and hold to access F3, F4, F5.
· Press in conjunction with the ACQ button to "Dispatch"
3.7 Run/Stop Key
· Use as emergency stop. When held down will change locomotive
speed to "0". Turn throttle to "0" speed setting to regain control or
press RUN/STOP again.
· RUN/STOP key is used in conjunction with other keys to activate
other throttle functions.
3.8 ACQ/DISP Key
· Press to acquire any locomotive address after the address has been
dialed in with the rotary selectors.
· When address selector reads "99", press "ACQ/DISP" to acquire
locomotive address that has been dispatched by another throttle in
the system.
· If address selector is set to other than "99" press ACQ/DISP and
SHIFT to dispatch the locomotive address to another throttle in the
system.
· Press ACQ/DISP along with RUN/STOP to set Option Switches in
your booster.
3.9 F0/F3 Key
· Press F0 to toggle front and rear headlights on and off.
· Hold "Shift" and press F3 to toggle Function 3 on and off.
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3.10 F1/F4/ON Key
· Press F1 to toggle Function 1 on and off.
· Hold "Shift" and press F4 to toggle Function 4 on and off.
· Press "RUN/STOP" and "ON" together to turn track power on.
3.11 F2/F5/OFF Key
· Press F2 to toggle Function 2 on and off.
· Hold "Shift" and press F5 to toggle Function 5 on and off.
· Press "RUN/STOP" and "OFF" together to turn track power off.
3.12 Four Top Row LEDs (Chase Lights)
· Indicates function status, lit when on
· All four LEDs strobing left to right means that you need to increase
speed on the throttle knob to complete the selection of a locomotive.
· All four LEDs strobing right to left means that you need to decrease
speed on the throttle knob to complete the selection of a locomotive.
· Indicates CLOSED when in Switch Mode.
· LED above ACQ blinking every 4 seconds indicates that the throttle
is active.
8

UT2 Throttle Diagram
4.0 UT2 Throttle Control Panel
4.1 General Color Codes
The UT2 is color coded according to how the keys are used.
The only RED key is Run/Stop. This is so you can't miss it in case of
emergency.
The BLUE keys are used in conjunction with the "SHIFT" key.
4.2 The Throttle Knob
Turn clockwise to increase the speed of your locomotive. Turn counter
clockwise to decrease the speed of your locomotive. There is about
300 degrees of rotation from 0 speed to full throttle.
R
LOCO ADDRESS
L O C O A D D R E S S
ST
S T
F4
F 4
F5
F 5
U T 2
F3
F 3
RUN
R U N
STOP
S T O P
SHIFT
S H I F T
PROG
P R O G
ADR
A D R
CV#
CV#
CV VL
C V V L
ACQ
ACQ
DISP
D I S P
OPSW
O P S W
ON
O N
OFF
O F F
128
1 2 8
28
2 8
14
1 4
F0
F 0
F1
F 1
F2
F 2
c
0
9
Throttle Knob
Section 4.2
Direction Toggle Switch
Section 4.3
Rotary
Address Selector
Section 4.4
Status
Indicator
Section 4.5
Shift/Program
Section 4.6
Run/Stop
Section 4.7
Acquire
Dispatch
Option Switch
Section 4.8
F0/F3
ADR
Section 4.9
F1/F4
CV#
ON
Section 4.10
F2/F5
CV Value
OFF
Section 4.11
Green LED Indicators
Section 4.12
Rotary
Address Selector
Section 4.4
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