Novak GTX Manual
Novak GTX, size: 2.4 MB
Novak GTX Profile Selection & Min Brake Selection
Think small. Really small. Now think powerful, high-tech, rugged, durable, and...orange. These are all accurate ways to describe Novak s smallest and lightest speed control ever - the GTX is the new benchmark for programmable racing ESCs. The GTX is one of the smallest, lightest, and most powerful competition ESCs currently available. (18.1g) [with heatsink, without wires] Motor Limit None (Any brush-type R/C Motor) On-Resistance 0.00034 ohms Rated Current 150 Amps @ 25? C MOSFET Temp. Braking C... Read more
Part Number: 1780
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step 4 MOUNTiNG
Steering Channel Works But Motor Will Not Run
Check motor connections. Check motor and brushes. Make sure input signal harness is plugged into throttle channel of receiver and the ESC. Check throttle channel operation with a servo. Check wiring color sequence of receiver signal harness. Possible thermal shut-down (blue & red status LEDs flashing)Check motor, brushes, & drive train. ESC is being severely over-loaded. Possible internal damageRefer to Service Procedures.
Be sure to mount the GTX where its power wires are away from other electronics, and will not interfere with any moving parts. Mount GTX to the vehicles chassis with the included double-sided tape (use two layers of other double-sided tapes for adequate damping). Mount Power Capacitor to chassis with double-sided tape or tie-wrap. If Power Cap. becomes dented/damaged, ESC failure can occur--replace immediately. Longer Power Capacitor wires decrease performance. You can use one of the included C-shaped plastic clips to secure the ON/OFF switch to the side of the GTXs black 5-pin power switch/input harness plastic facing either forward or back (see below). Position switch against connector & slide clip over flange on switch.
Input Voltage.. 4-7 cells (1.2 volts DC/cell) Motor Limit.. Any brushed-type R/C motor Case Size.. 1.11x0.86x0.60 [28.2x21.8x15.2mm] Weight (w/o wires).. 0.64 ounce [18 grams] On-Resistance @ Transistors**.. 0.00034 Rated Current (forward/braking).. 150/60 amps B.E.C. Voltage/Current. 6.0 volts DC/3.0 amps Schottky Diode... 36 amps (built-in) Power Wire.. 10 inches/14G Signal Harness (replaceable).. 9 inches [22.8 cm] Throttle Programs... 7 (6 fixed/1 adjustable) Minimum Brake (all Programs).. 0%-50% PWM Frequency... 1-11 kHz
**Transistor rating @ 25C
Receiver Glitches/Throttle Stutters During Acceleration
Receiver or antenna too close to ESC, power wires, battery, or motor. Bad connectionsCheck wiring and connectors. Motor brushes wornReplace brushes. Excessive motor currentUse milder motor or smaller pinion gear. External Power Capacitor damaged/not installedReplace Power Capacitor.
High-Performance Programmable Racing ESC
Power Capacitor tie-wrapped to chassis ON/OFF switch held with C-clip
Motor and Steering Servo Do Not Work
Check wires, receiver signal harness wiring & color sequence, radio system, crystals, battery & motor connectors, and battery pack. Possible internal damageRefer to Service Procedures.
C-shaped clip holding switch on black 5-pin input harness plastic Electronics mounted with double-sided tape
Model Runs Slowly/Slow Acceleration
Check motor and battery connectorsReplace if needed. Bad battery or motorCheck operation with another. Incorrect transmitter/ESC adjustmentRefer to Steps 4 & 5. External Power Capacitor damaged/not installedReplace Power Capacitor. Schottky diode damagedIf using external Schottky, check that diode is installed correctly/Refer to Step 2. Possible internal Schottky damage.
Be sure receiver & antenna are mounted as far from ESC, power wires, battery, and servo as possible--these components all emit RF noise when throttle is being applied. On graphite or aluminum chassis vehicles, it may help to place receiver on edge with crystal & antenna as far above chassis as possible.
Note: Mount antenna as close to receiver as possible--trail any excess wire off top of antenna mast (cutting or coiling excess antenna wire will reduce radio range).
Motor Runs Backwards
Motor wired backwardsCheck wiring and reverse. Backwards motor timingReverse motor end bell.
SMALL.LIGHTWEIGHT.EXTREMELY POWERFUL.EASY-TO-USE.RELIABLE..any other requests?
You told us what you wanted in a programmable ESC, and here it is. The GTX is smaller & lighter than any other racing speed control Novak has ever produced, and now its even easier to use. Right out of the box, this highly customizable ESC is loaded with 7 factory-installed Throttle Programs, with the top pro drivers favorite Profile always loaded as the default.
You choose how the GTX works best for you--select from the 7 factory programs, or customize the 7th program just how you want it. Minimum Brake settings are individually stored for each program, and the 7th program lets you select from 7 Drive Frequencies, 5 Minimum Drive percentages, 5 Brake Frequencies, 7 Minimum Brake percentages, 5 Dead Band percentages, 2 styles of braking, and 7 Drag Brake percentages. The GTX has Novaks Variable Throttle Step Technology, with up to 2600 discrete steps (1300 for drive & 1300 for braking) for the smoothest ESC availableno matter what frequency you select (1-11kHz). As an added safeguard, your GTX is equipped with Thermal Overload Protection, and thats something that can save you some serious money considering the motors that are being used in todays racing. Add to this the ease & convenience of user-replaceable power wires, power capacitor, ON/OFF switch, & input harness, and the GTX is just what you asked for!
ESC Is Melted Or Burnt/ESC Runs With Switch Off
Internal damageRefer to Service Procedures. *For more assistance call our Customer Service Department.
step 5 transmitter adjustments
NOT ALL TRANSMITTERS HAVE THESE ADJUSTMENTS
Before sending your GTX in for service, review Trouble-Shooting guide & instructions. ESC may appear to have failed when other problems exist. After reviewing instructions, if you feel your GTX requires service, please obtain the most current product service options & pricing by the following: WEBSITE: Print a copy of the PRODUCT SERVICE FORM from the CUSTOMER SERVICE section of the website. Fill out the needed information on this form and return it with the Novak product that requires servicing. PHONE/E-MAIL: If you do not have access to the internet, contact our customer service dept. by phone or e-mail as listed on the front page. WARRANTY SERVICE: For warranty work, you MUST CLAIM WARRANTY on PRODUCT SERVICE FORM & include a valid cash register receipt with purchase date and dealer name & phone# on it, or an invoice from previous service. If warranty provisions have been voided, there will be service charges. GTX ESCs returned without a serial number will not be serviced under warranty.
For proper ESC operation, adjust transmitter as follows: A. Set HIGH ATV or EPA to maximum setting.
[amount of throw at full throttle]
B. Set LOW ATV, EPA, or ATL to maximum setting.
[amount of throw at full brakes]
Because of this ESCs advanced technical features, PLEASE READ ALL INSTRUCTIONS before using GTX
C. Set EXPONENTIAL to zero setting. [throttle channel linearity] D. Set THROTTLE CHANNEL REV. SWITCH to either position. E. Set THROTTLE CHANNEL TRIM to middle setting.
[adjusts neutral position/increases or decreases coast brakes]
WATER & ELECTRONICS DONT MIX!
Never allow water, moisture, or other foreign materials to get inside the speed control or on the PC Board. Water damage will void the warranty!
POWER CAPACITORS [#5675]
An external power capacitor is installed, and SHOULD BE USED to maintain cool and smooth operation. Refer to Fig.5 Set-Up Photo Replacement Power Capacitor is available in Novak kit #5675.
F. Set ELECTRONIC TRIGGER THROW ADJUSTMENT to 70% throttle and 30% brake throw (or 7:3).
[adjusts trigger throw electronic/digital pistol-grip transmitters]
G. Set MECHANICAL TRIGGER THROW ADJUSTMENT to position with 2/3 throttle and 1/3 brake throw.
[adjusts trigger throw on mechanical/analog pistol-grip transmitters]
Hobby dealers or distributors are not authorized to replace Novak products thought to be defective. If a hobby dealer returns your GTX for service, submit a completed PRODUCT SERVICE FORM to the dealer and make sure it is included with the ESC. Novak Electronics, Inc. does not make any electronic components (transistors, resistors, etc.) available for sale.
DISCONNECT BATTERIES WHEN NOT IN USE
Always disconnect the battery pack from the speed control when not in use to avoid short circuits and possible fire hazard.
RACING SCHOTTKY MOTOR MODULES [#5636]
The GTX has a built-in 36A Schottky diode and does not require an external one for most usage. The external Schottky will optimize the ESCs braking and motor performance in applications with heavy or repeated braking or low-turn modified motors. Racing Schottky Motor Module is available in Novak kit #5636.
4 TO 7 CELLS ONLY
Never use fewer than 4 or more than 7 cells (8.4 volts DC) in the vehicles main battery pack.
step 6 one-touch programming
With GTX connected to (at least) a receiver & a charged battery pack: 1. TURN ON THE TRANSMITTERS POWER 2. PRESS & HOLD GTXS ONE-TOUCH/SET BUTTON 3. TURN ON THE SPEED CONTROLS POWER
With transmitter throttle at neutral, and still pressing the SET button, slide the GTXs ON/OFF switch to ON position.
The GTX speed control is guaranteed to be free from defects in materials or workmanship for a period of 120 days from the original date of purchase (verified by dated, itemized sales receipt). Warranty does not cover incorrect installation, components worn by use, damage to case, damage from using fewer than 4 or more than 7 cells (1.2 volts DC/cell) input voltage, cross-connection of battery/motor, overheating solder tabs, reverse voltage application, damage from incorrect installation of FET servo or receiver battery pack, not installing three 0.1F (50V) capacitors on motor, incorrect installation of a Power Capacitor on the ESC or from using a damaged Power Capacitor, using a non-Novak Power Capacitor, splices to input harness, damage from excessive force when using the One-Touch/SET button or from disassembling case, tampering with internal electronics, allowing water, moisture, or any other foreign material to enter ESC or get onto the PC board, incorrect installation/wiring of input plug plastic, allowing exposed wiring or solder tabs to short-circuit, or any damage caused by a crash, flooding, or act of God. In no case shall our liability exceed the product's original cost. We reserve the right to modify warranty provisions without notice. Because Novak Electronics, Inc. has no control over the connection & use of the speed control or other related electronics, no liability may be assumed nor will be accepted for any damage resulting from the use of this product. Every Novak speed control is thoroughly tested & cycled before leaving our facility and is, therefore, considered operational. By the act of connecting/operating speed control, user accepts all resulting liability. 2004 Novak Electronics, Inc. All Rights Reserved No part of these operating instructions may be reproduced without the written permission of Novak Electronics, Inc. GTX Programmable Racing ESC, Variable Throttle Step Technology, Polar Drive Technology, Radio Priority Circuitry, & One-Touch Set-Up are all trademarks of Novak Electronics, Inc. All Novak speed controls are designed & manufactured in the U.S.A.
NO REVERSE VOLTAGE!
Reverse battery polarity can damage speed controlDisconnect the battery immediately if a reverse connection occurs.
MOTOR CAPACITORS [#5620]
Additional motor capacitors are available in Novak kit #5620.
14G SUPERFLEX SILICONE POWER WIRE [#5500 & 5505]
Replacement GTX battery & motor wire is available in Novak kits #5500 (36red & 36black) & #5505 (36red & 36blue).
POWER CAPACITOR RECOMMENDED
An external power capacitor is supplied & installed, and SHOULD be used with your GTX. Failure to use Power Capacitor will result in higher ESC operating temperatures & possible thermal shut-down!
12G SUPERFLEX SILICONE POWER WIRE [#5530 & 5535]
12 guage silicone battery & motor wire is available in Novak kits #5530 (36red & 36black) & #5535 (36red & 36blue).
TRANSMITTER ON FIRST
Always turn on the power of the transmitter first so that you will have control of the vehicle when you turn it on.
4. CONTINUE HOLDING SET BUTTON UNTIL RED LED COMES ON 5. RELEASE GTXS SET BUTTON AS SOON AS LED TURNS RED 6. PULL TRANSMITTER THROTTLE TO FULL-ON POSITION
Hold it there until the green status LED turns solid green.
Note: Motor will not run during programming even if connected.
GTX INPUT/SWITCH HARNESS [#5305]
The user-replaceable combo power switch/input harness comes with ON/OFF switch and both long & short length input pigtails. GTX Input/Switch harness available in Novak kit #5305.
Always insulate exposed wiring with heat shrink tubing or electrical tape to prevent short circuits, which can damage ESC.
7. PUSH TRANSMITTER THROTTLE TO FULL-BRAKES
Hold it there until the green status LED blinks green.
Exposing the speed controls Lexan case to any type of solvents will damage the plastic.
8. RETURN TRANSMITTER THROTTLE TO NEUTRAL
Red status LED will turn solid red, indicating that throttle is at neutral, and proper programming has been completed--youre done.
NOTE: If transmitter setting are changed, programming must be repeated. If you experience any problems, turn off ESC and repeat programming.
Novak Electronics, Inc.
(949) 833-8873 FAX (949) 833-1631 Customer Service e-mail: firstname.lastname@example.org Monday-Thursday: 8:00am-5:00pm (PST) Friday: 8:00am-4:00pm (closed every other Friday)
NO CA GLUE
Exposure to CA glue or its fumes can cause damage to internal components of the speed control and result in premature failure.
step 1 connect
step 2 MOtor
1. MOTOR CAPACITORS
step 3 wiring
speed control, motor, & battery
The GTX speed control is epuipped with the industry standard connector on a user-replaceable combination power switch/input harness--the 3-pin connector on the end of this harness works with all the major radio brands new receivers. However, some very old receivers must have the wiring sequence inside the plastic 3-pin connector housing changed. This is an important step, because the receiver electronics may be damaged if the sequence is not correct.
changing wiring sequence @ receiver end
JR Hitec Futaba New KO Airtronics Z
JR, Hitec, Futaba, new KO, & Airtronics Z receivers do not need input harness re-wiring. Airtronics Z receivers have blue plastic cases & new KO cases have tabs on the input harness openings as in Figure 1. Plug the 3-pin connector end of the input harness into the receiver with the BLACK wire toward the outside edge of receiver case. Plug the 5-pin end of the power switch/input harness onto 5-pin header on the side of the GTXs case with the WHITE wire toward the S (signal) marking by the corner of the ESCs case.
Electric motors generate RF noise that causes interference. The included 0.1F (50V) non-polarized, ceramic capacitors must be used on all motors to reduce motor noise & prevent ESC damage. Note: Some motors come with capacitors built-in. If your motor only has two capacitors, you need to install a capacitor between the positive & negative motor tabsIf you experience radio interference when using only built-in capacitors, install external ones. Solder 0.1F (50V) capacitors between: POSITIVE (+) motor tab & NEGATIVE () motor tab. POSITIVE (+) motor tab & GROUND tab*. NEGATIVE () motor tab & GROUND tab*.
*If motor has no ground tab (below), solder the capacitors to motor can.
The GTX is an extremely powerful ESC, capable of very efficient delivery of battery power to your vehicles motor, and thus requires very good connections between the battery, ESC, & motor to obtain the best performance. A common cause of perfomance problems & ESC failures is poor solder joints--If you have any doubts about your soldering skill, we suggest seeking assistance at your hobby shop or track.
using the y method : method
select a mounting location:
Negative () motor tab 0.1F Capacitors Schottky diode Positive (+) motor tab Ground / motor can
Keep the ESC and its power wires away from other electronics in the vehicle, especially the receiver & antenna. Do not bundle receiver/signal wires with other wires--messy installations account for nearly all radio interference (glitching) problems. A clean looking install almost always works better. Route ESC wires to clear any moving parts in the vehicle. Airflow through the ESCs heat sink is a huge performance plus. Like a real car, cooling is everything--if you can mount the ESC where it will see some air flow, it will run cooler; and that means that the ESC will be even more efficient (and make you faster!). Once youve decided where to put the GTX, its time for some wiring. The GTX uses a 3-wire system where the battery & motor share the same red wire. The recommended wiring method is direct soldering for a system with the least amount of resistance. Installations can also use battery/motor connectors & will be discussed at the end of this section.
a. Strip a 1/4-3/8 section of insulation from the mid-section of the GTXs red wire where you want to split and go to the motor & battery. Tin the exposed section of wire with solder. b. Strip a 1/4 of insulation off the one end of the extra piece of red wire that came with the GTX. Twist & tin the wire. c. Slide the supplied piece of heat shrink tubing over the red wire coming from the GTX, and slide it all the way to the ESC. d. Solder the tinned end of the extra piece of red wire to the tinned section along the GTXs red wire & shrink the tubing over the solder joint with a heat gun (a lighter or match also works well). e. Cut one end of the GTXs red wire (after the Y) to the proper length so it will reach the positive (+) tab of the motor and strip 1/8-1/4 of insulation off the end. Twist & tin the wire. f. Solder this end of the GTXs red wire to the positive (+) motor tab. g. Cut the other end of the GTXs red wire to the proper length so it will reach battery pack positive (+) and strip 1/8-1/4 of insulation off the end. Twist & tin the wire. h. Solder this end of the GTXs red wire to battery positive (+).
New KO (with tabs) tabs white red black
Old KO (no tabs) no tabs white black red
Extra 0.1F capacitors are available in Novak kit #5620.
2. PREP & SOLDER GTXS BLUE & BLACK WIRES
a. Cut the end of the GTXs blue wire to the proper length so it will reach the negative () tab of the motor and strip 1/8-1/4 of insulation off the end. Twist & tin the wire. b. Solder the end of the GTXs blue wire to motor negative (). c. Cut the end of the GTXs black wire to the proper length so it will reach battery pack negative () and strip 1/8-1/4 of insulation off the end. Twist & tin the wire. d. Solder the end of the GTXs black wire to battery negative () of a charged 4 to 7 cell pack.
TIP: Twisting BLUE & RED wires once or twice around each other as they go to the motor helps reduce RF noise emitted from power wires.
2. INSTALLING OPTIONAL SCHOTTKY DIODE
The GTX has a built-in 36A Schottky diode and does not require an external one under most conditions. The external Schottky will optimize the ESCs braking and motor performance in applications with heavy or repeated braking (lap after lap), or when using very low-turn modified motors. If using a Schottky diode with axial leads like shown in the photo above (older Novak style--35V/8A minimum) , solder the lead CLOSEST to the silver stripe on the body of the Schottky diode to the POSITIVE (+) motor tab. Solder the lead OPPOSITE the silver stripe on the body to the NEGATIVE () motor tab. If using the Novak Racing Schottky Motor Module (this is the best perfoming Schottky diode available), solder the red wire from the module to the POSITIVE (+) motor tab. Solder the black wire from the Schottky module to the NEGATIVE () motor tab.
If Schottky diode is installed backwards it will be destroyed. Replace only with Schottky diodes with a minimum rating of 35 volts/8 amps.
1. PREP & SOLDER SPEED CONTROLS RED WIRE
Depending on your vehicles configuration, there are two main ways that you can make the red wire connections--making a Y (or T) out of the red wire to go to the motor & battery, or a single wire set-up where the red wire goes to the battery and then continues on to the motor (or vice versa).
Old-style KO Old-style Sanwa/Airtronics
If your receiver is an older KO or Sanwa/Airtronics, you must change the sequence of the ESCs input harness wires. Old Sanwa/Airtronics cases are black in color & Old KO cases do not have the tab openings, as in Figure 2 above. Using a small standard/flat blade screwdriver, remove the red and black wires from the plastic 3-pin connector housing at the receiver end of the input harness as in Figure 3 below. Interchange the red and black wires in the plastic 3-pin connector housing at the receiver end of the input harness. Insert modified 3-pin end of the harness into the receiver with the RED wire toward the outside edge of receiver case.
using the single wire method : method
FIGURE 3 With a small standard screwdriver, gently lift plastic prong until
wire and metal socket easily slide out of plastic housing.
Racing Schottky Motor Modules are available in Novak kit #5636.
a. Position the GTX where it will be mounted, strip a 1/4-3/8 section of insulation from the mid-section of its red wire where you will solder it to positive (+) of the motor or battery (component that is in the middle). Tin the exposed section of wire with solder. b. Solder the exposed section of wire to positive (+) tab of the motor or the positive (+) end of the battery pack [see Figure 5: Set-Up Photo]. c. Cut the GTXs red wire (after the first connection) to the proper length so it will reach the final component (battery positive or motor positive) and strip 1/8-1/4 of insulation off the end. Twist & tin the wire. d. Solder the tinned end of the GTXs red wire to the final component--battery positive (+) or positive (+) tab of the motor.
using battery & motor connectors
Battery & motor connectors can be used for making your connections, however they will never have as low of resistance as a good solder joint. If you are going to use connectors for your battery and/or motor, we suggest the Deans Ultra Connectors--do not use crimp on types. When using battery and motor connectors, please note the following: If you have any doubts about your soldering skills, seek assistance from your hobby shop or track, or see our website for tips. Use connectors that cannot be plugged in backwards--reverse voltage will damage the GTX and void the warranty. Use a female connector on battery packs to avoid shorting. If using connectors for both battery & motor leads, use a male connector on the GTXs battery lead and a female on the GTXs motor lead to prevent cross connection (also voids warranty). For additional information on connector usage, visit our website.
FIGURE 5: SET-UP PHOTO
(in-line single wire method of red wire shown)
Trail excess wire off top of antenna mast Red power wire (battery & motor positive) 4 to 7 cell battery pack Keep receiver & antenna as far from motor, servo, battery, & power wires as possible.
FIGURE 6: Y METHOD OF WIRING
Three 0.1F (50V) ceramic capacitors
changing input harness pigtail length
ON/OFF switch screwed to chassis
Y in red wire
heat shrink all exposed wiring
Power Capacitor taped to chassis
replacing power wires @ solder tabs
When replacing the battery or motor power wires at the GTXs solder tabs, its important to not overheat PCB (printed ciruit board) with the soldering iron by applying prolonged or excessive heating. Remove wires from the tab by first removing GTX from vehicle to access solder joints on the bottom of the tabs. Use a soldering iron to apply heat to the wires solder joint while gently pulling on the wire to remove it from the hole in the PC Board. Replace the wires by stripping 1/8-1/4 of insulation from the end of the new wire. Tightly twist the wire strands and lightly tin with solder. Insert the wire end into the proper hole in the PC Board (if
there is still solder in the hole you can melt it with the iron while pushing the wire through the hole). Apply heat to the section of wire that is sticking
() insulate exposed wiring & leads
Black power wire (battery negative)
using a receiver battery pack
If using an external receiver battery pack with the GTX: 1. Plug an external 5 cell (1.2VDC/cell) receiver battery pack into the battery slot of the receiver. 2. Leave the GTXs ON/OFF switch in the OFF position, and use receiver battery packs ON/OFF switch to turn the system power on and offDo not use the GTXs switch.
Blue power wire (motor negative) status LEDs User-replaceable combination power switch & input harness
Red Power Capacitor taped or tie-wrapped to chassis Green
why you want the power capictor
The GTX comes with the best available power Capacitor that drops ESC operating temperatures by 10-15F (remember, cooler means your GTX will be more efficient & faster) and dissipates noise & voltage spikes from the ESCs high switching speed that makes the GTX so smooth. You MUST use Novak Power Capacitors--other capacitors with similar ratings dont provide the same protection. Weve done extensive research to find capacitors with the very best quality factors.
Fig.7: STATUS LEDs
The GTX is supplied with both a long and short length input signal pigtail to allow you to get a custom looking install without all the extra signal wire that needs to be bundled up in the vehicle. To change the input signal pigtail, follow above instructions for removal of old pigtail. Select proper wiring sequence as described above, then insert the new pigtail, and youre done.
One-Touch/SET programming button
through the tabs hole, and add solder to the tip of the soldering iron and to the wire. Add just enough solder to form a clean & continuous joint from the plated area of the solder tab up onto the wire. Use side cutters to trim excess wire above tab (about 1/16).
ATTENTION: After STEP 6 (end of Basic Set-Up Guide), your GTX is fully programmed & Ready-to-Run
Your GTX is now set-up just like our top factory drivers currently use it!
The settings on this page are optional--No further adjustments are required
adjust minimum/drag brake
The GTX lets you select between 2 different styles of braking--the Standard Constant Force brakes or Drag Braking. Either style you choose, you also get to select from 7 different levels of initial braking. In addition to this, the GTX stores a separate Minimum or Drag Brake setting for each of the 7 Throttle Profiles.
Minimum/Drag Brake value = percentage of full-brakes (transmitter @ full-brake pos.) The braking then ranges from selected value up to 100% braking force.
throttle profile selection
The GTX is equipped with 7 user-selectable Throttle Profiles to choose from. The chart below shows how the different Throttle Profiles change the feel of the throttle response.
SMOOTH 6 7
Min/Drag Brake Setting#: 1
Minimum Brake (%): 0
The Factory-Installed Profiles chart below shows the Drive Frequency, Minimum Drive, Brake Frequency, Minimum Brake, and Deadband values that are the factory defaults for Throttle Profiles 1-7.
The default Min.Brake setting for all 7 Profiles is #2 (20% Minimum Brake).
FACTORY-INSTALLED PROFILES 1-7
Throttle Profile #: 1
Drive Frequency (kHz): 1.5 Minimum Drive (%): 3 Brake Frequency (kHz): 3.5 Minimum Brake (%): 20 Deadband (%): 4 Standard Brakes are active:
select minimum brake % :
With GTX connected to a charged battery (transmitter ON or OFF): 1. IF TRANSMITTER IS OFF, DISCONNECT GTX FROM RECEIVER
Without a transmitter signal present there is a risk of possible radio interference from other transmitters, so it is advised to remove the GTXs input signal harness from the receiver.
2. TURN ON THE SPEED CONTROLS POWER 3. PRESS & HOLD THE GTXS ONE-TOUCH SET BUTTON
Press and hold SET button on GTX until the blue LED turns on.
7.5 11.6 3.5 3.4
4. RELEASE SET BUTTON AS SOON AS BLUE LED COMES ON
Once released, the blue status LED will flash to indicate what Minimum Brake value is currently selected. The number of times the LED flashes indicates the Minimum Brake selection (1 of 7).
NOTE: GTX is factory set to Profile #3--This is the current choice of our top drivers for stock & modified. Use higher Profile numbers for tracks with less grip
(this gives you smoother throttle response)
5. QUICK PRESS (& release) SET BUTTON TO CHANGE SELECTION
Each press will change to the next consecutive Minimum Brake value. (After value #7, the sequence begins again at value #1)
Note: there is no time constraint during this selection process--if button is not pressed, software rolls over & LED flashes current selection again.
Use lower Profiles for higher grip tracks or stock motors
(this gives you a more aggressive response)
all LEDs selecting throttle profile profile With GTX connected to a charged battery (transmitter ON or OFF): 1. IF TRANSMITTER IS OFF, DISCONNECT GTX FROM RECEIVER
6. PRESS & HOLD THE GTXS SET BUTTON TO ENTER SELECTION
When SET button is pressed & held for about 1 second, the selected Minimum Brake value is stored in the GTXs memory for the active Profile--The 4 different color status LEDs will then scroll back & forth to indicate that you are exiting the Minimum Brake selection part of the GTXs software. The red status LED will then turn on solid (red & green if no transmitter signal present), indicating that the GTX is at neutral & ready to go.
To avoid possible radio interference from other transmitters, remove the GTXs input signal harness from the receiver.
Continue to hold SET button on GTX until all 4 LEDs turns on.
Note: you will continue holding past the blue and then blue & amber.
switch to drag braking : braking
blue & amber
4. RELEASE SET BUTTON AS SOON AS ALL 4 LEDs COMES ON
Once released, the 4 status LEDs will flash to indicate what Throttle Profile is currently selected. The number of times the LEDs flash indicates the Throttle Profile selection (1 of 7).
Every bit as easy as it was to select the Minimum Brake value above, its that easy to switch over to Drag Braking and select its value. With GTX connected to a charged battery & GTX powered ON: 1. PRESS & HOLD THE GTXS ONE-TOUCH SET BUTTON
Each press will change to the next consecutive Throttle Profile. (After
Profile 7, the sequence begins again at Profile 1) Note: there is a time constraint during this selection process.
2. CONTINUE HOLDING SET BUTTON PAST THE BLUE LED 3. RELEASE SET BUTTON WHEN BLUE & AMBER LEDs COMES ON
Once released, the blue & amber status LEDs will flash to indicate that Drag Braking is now active and which Drag Brake value is currently selected. (# of flashes = Drag Brake selection--1 of 7)
6. GTX STORES SELECTION & BEGINS TO EXIT PROGRAMMING
When SET button is not pressed for about 3 seconds, the selected Profile is stored into memory & all 4 LEDs will come on solid. Then: If a Profile other than 7 is selected: status LEDs will then turn off in a rolling motion from right to left, until just the red LED is on solid (red & green if no transmitter signal present). GTX is at neutral & ready to go. If Profile 7 is selected: the 4 status LEDs will stay on solid for a few seconds (to give you a chance to enter into the 7th Profile Customization Mode)--if SET button is not pressed while they are all on solid, they will then turn off in a rolling motion from right to left (as above), until just the red LED is on solid (red & green if no transmitter signal present). The GTX is at neutral & ready to go.
REMEMBER: Whenever the One-Touch set-up is performed, the GTX will automatically revert to the factory default settings & the Throttle Profile will revert to #3.
4. QUICK PRESS (& release) SET BUTTON TO CHANGE SELECTION
Each press will change to the next consecutive Drag Brake value.
5. PRESS & HOLD THE GTXS SET BUTTON TO ENTER SELECTION
When pressed & held for about 1 second, selected Drag Brake value is loaded into GTXs memory for active Profile. The 4 status LEDs scroll back & forth and GTX exits to the red status LED of neutral.
to switch back to std. braking : braking
Just repeat steps in SELECT MINIMUM BRAKE % above, and youre automatically switched back to Standard Constant Force brakes.
PLEASE NOTE: This page contains Advanced Programming items only!
Because of the GTXs high degree of adjustability, the items on this page give you access to a very powerful tool. This level of tuning also means you have the ability to thoroughly mess-up the GTXs performance.
These programming items are STRICTLY ADVANCED--No further adjustments are required
(but dont worry, you can always reset factory defaults by performing the One-Touch programming again, so go ahead & experiment--thats why you bought it , right?)
The GTXS 7th Throttle Profile can be customized for fine tuning the speed control to feel just the way you like it with any motor. The GTX lets you tune the following items in 7th Throttle Profile: Drive Frequency--1 of 7 frequencies from 1.5 to 11kHz. Minimum Drive Percentage--1 of 5 settings from 2 to 12%. Brake Frequency--1 of 5 frequencies from 1.5 to 6.5kHz. Minimum Brake Percentage--1 of 7 settings from 0 to 50%. Braking Type--1 of 2 types of braking styles (standard Constant Force
braking or DRAG BRAKING).
to enter profile profile
customizing mode : mode
2. TURN ON THE SPEED CONTROLS POWER 3. MAKE THROTTLE PROFILE 7 ACTIVE
If you are not sure that Profile 7 is selected, follow the procedures in Throttle Profile Selection to check or select Profile 7.
Dead Band--1 of 5 Dead Band settings from 2 to 6%.
gtx software flow chart:
RED or RED & GREEN press & hold
4. DOUBLE-CLICK SPEED CONTROLS SET BUTTON
With Profile 7 active & speed control in neutral, quickly press & release GTXs SET button twice to enter Profile 7 customizing mode. All 4 LEDs will turn on solid for about 1 second, then turn off. The green status LED (2nd LED from left) will then flash to indicate the active Drive Frequency (& that youre in the customizing mode).
to adjust profile profile
two quick presses if profile 7 active
7 parameters : parameters
Note: there is no time constraint during the Profile 7 customizing process.
5. SELECT DRIVE FREQUENCY
continue holding GTXs SET button to skip steps here
press & hold
Green status LED (2nd from left) flashes to indicate active Drive Frequency setting. Quick press & release to select desired setting.
BLUE & AMBER press & hold
Setting (# of flashes): Drive PWM Frequency (kHz):
1.5 2.5 3.5 4.5 6.5 8.5 11.0
6. PRESS & HOLD SET BUTTON TO MOVE ON
When amber status LED (4th from left) comes on, release SET button.
all LEDs (flashing) if Profile 1-6 selected if Profile 7 selected wait & all LEDs come on solid
7. SELECT MINIMUM DRIVE PERCENTAGE
Amber status LED flashes to indicate active Minimum Drive setting. Quick press & release to select desired setting.
Setting (# of flashes):
Minimum Drive (%):
if pressed while all LEDs on
GREEN press & hold
8. PRESS & HOLD SET BUTTON TO MOVE ON
When red status LED (1st from left) comes on, release SET button.
PROFILE 7 CUSTOMIZING MODE
9. SELECT BRAKE FREQUENCY
AMBER if not pressed while all LEDs on press & hold
Red status LED flashes to indicate active Brake Frequency setting. Quick press & release to select desired setting.
RED press & hold LEDs roll off save & exit
Note: Same as Drag Brake frequency if Drag Brakes are active.
10. PRESS & HOLD SET BUTTON TO MOVE ON
When green & blue status LEDs (2nd & 3rd) come on, release SET button.
GREEN & BLUE press & hold LEDs scroll save & exit
11. SELECT DEAD BAND PERCENTAGE
green & blue
Green & blue status LEDs flash to indicate active Dead Band setting. Quick press & release to select desired setting.
Dead Band (%):
RED or RED & GREEN
12. PRESS & HOLD SET BUTTON TO COMPLETE CUSTOMIZING
When SET button is pressed & held for about 1 second, the new Profile 7 selections are stored in GTXs memory--The 4 status LEDs will then scroll back & forth to indicate you are exiting the Profile 7 Customization part of GTXs software. The red LED will turn on solid (red & green if no transmitter signal present)--GTX is at neutral & ready to go.
restoring gtx factory defaults : defaults
Every time you perform the One-Touch Set-Up, the GTXs factory default profile settings are restored--as shown in Factory-Installed Profile 1-7 chart.
Think small. Really small. Now think powerful, high-tech, rugged, durable, and...orange. These are all accurate ways to describe Novak s smallest and lightest speed control ever - the GTX is the new benchmark for programmable racing ESCs. The GTX is one of the smallest, lightest, and most powerful competition ESCs currently available. (18.1g) [with heatsink, without wires] Motor Limit None (Any brush-type R/C Motor) On-Resistance 0.00034 ohms Rated Current 150 Amps @ 25? C MOSFET Temp. Braking Current 60 Amps @ 25? C MOSFET Temp.
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