NOVAK GOAT CRAWLER BRUSHLESS SYSTEM Specifications
pin-out
label
negative
fan pin
positive
fan pin
black
orange
white
plastic
tabs
red
blue
green
metal
barbs
raised
metal
barb
metal socket
on end of Teflon
sensor harness wires
#55-3019-1
8-2007
SPECIFICATIONS
Input Voltage ............................ 4-7 cells (1.2 VDC/cell), 2 Li-Po cells
ESC Footprint ..............................................1.18”x1.54” [30x39mm]
ESC Weight (w/o wires) ..................................1.49 ounce [42 grams]
B.E.C. Voltage/Current .................................. 6.0 volts DC/5 amps
Power Wire (Battery/Motor) ......................... 14G Super-Flex Silicone
On-Resistance (Brushless) .......................... 0.0012
Ω
@25°C trans.temp.
On-Resistance (Brush-Mode) ...................... 0.0012
Ω
@25°C trans.temp.
Rated Current (Brushless) ..................120A [per phase]
@25°C trans.temp.
Rated Current (Brush-Mode) .........120A [Fwd & Brakes]
@25°C trans.temp.
Motor Limit (Brushless) ............................Down to 18.5-turn Novak
Motor Limit (Brush-Mode) ................................................... 27-turn
Throttle Programs (Brushless) ........................ 3 [2 crawling & 1 robotic]
Throttle Program (Brush-Mode) ........................1 [Fwd/Drag Brake/Rev]
The Ultimate Rock Crawling Controller for Brushless & Brush Motors and Full Programmability!
The Goat Brushless/Brush Crawler electronic speed control gives you the best of everything--Sensor-based brushless motor control and
brush motor control in one ESC with Auto-Detect Brush-Mode, plus complete on-board programming of Minimum Brake, Drag/Hill Brake,
Dead Band, LiPo Cut-Off, Motor Rotation, & Drive Frequency (in Brush Mode).....all the versatility needed for your crawler!
The Goat ESC is factory-loaded with 4 throttle programs to choose from (including a Servo/Robotic Mode), Novak’s Crawler-exclusive brushless holding power
& linear ramp-up braking,
Thermal Overload Protection, high-power B.E.C. for extra-strong/fast servo response, Polar Drive & Digital Anti-Glitch circuitries
for cool & smooth operation, & an auxiliary power output. Add to this the user-replaceable battery wires & input harness, and the Goat has it all!
To benefit from all of the technical features the Goat has to offer, PLEASE READ ALL INSTRUCTIONS BEFORE OPERATION
REPLACEMENT/UPGRADE POWER CAPACITOR
[Novak kit #5682]
The Goat ESC comes with a factory-installed Power Capacitor, and one
MUST BE
USED to maintain cool & smooth operation. Upgrade Power Capacitor available in Novak
kit #5675---Novak has done extensive testing & research to find Power Capacitors with the best
quality factors––other similar rated capacitors will not provide equal protection.
SUPER-FLEX SILICONE 14G WIRE
[Novak kits #5500 & 5508]
Novak Super-Flex wire for power wiring. 14 gauge silicone wire in kit #5500 (36”red
& 36”black) or kit #5508 (2 each of 9”red/black/blue/yellow/orange).
INPUT SIGNAL HARNESS
[Novak kits #5315 & 5320]
User-replaceable input signal harness is available in both short and long lengths.
4.5” harness in Novak kit#5315, and 9.0” harness in Novak kit #5320.
VELOCITI RIBBED END BELL & BEARING SET
Ribbed front end bell with bearing factory-installed & rear bearing--Novak kit #5919.
30x30mm COOLING FANs
[Novak kits #5648 & 5652]
Cooling fans that fit ESC’s heat sink perfectly & have correct power plug for easy
connection. Single fan in Novak kit#5648, and 2-pack of fans in Novak kit #5651.
LEAD-FREE 3% SILVER SOLDER
[Novak kit #5830]
High silver content for making ultra low-resistance solder joints for high efficiency
and better performance. Tube with 10 feet of solder in Novak kit #5830.
WATER & ELECTRONICS DON’T MIX!
Never allow water, moisture, or other foreign materials to get inside ESC, motor,
or on the PC Boards.
Water damage will void the warranty!
NO SCHOTTKY DIODE!
Schottky diodes must NOT be used in Brushless-Mode or Brush-Mode with the
Goat ESC (Schottky diodes are never used with reversible ESCs, including brushless).
Schottky diode usage will damage ESC & void warranty.
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.
4 TO 7 CELLS OR 2-CELL Li-Po ONLY
If using Ni-Cd or Ni-MH batteries,
NEVER use fewer than 4 or more than 7 cells
(1.2VDC/cell) in the vehicle’s main battery pack.
If using Li-Po batteries,
ONLY use a 2-cell (2S) pack for the vehicle’s main battery
& be sure the Li-Po Cut-Off programming option is turned
ON.
NOVAK BRUSHLESS MOTORS ONLY
The Goat ESC is designed for use with sensor-based Novak Brushless Motors.
You may replace with Novak sensored motors down to 18.5 turns.
In Brush-Mode, you may use down to a 27-turn stock brush motor.
NO REVERSE VOLTAGE!
Reverse battery polarity can damage ESC & void warranty. Disconnect battery
immediately if a reverse connection occurs.
POWER CAPACITOR REQUIRED
An external power capacitor is installed on ESC &
MUST be used. Failure to use
Capacitor will result in higher temperatures & possible thermal shut-down or damage.
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.
GOOD QUALITY TRANSMITTER SUGGESTED
With the higher performance of brushless systems, undesirable radio system noise
may occur when used with lower quality transmitters (like some RTR radios).
DO NOT BUNDLE POWER & SIGNAL WIRES TOGETHER
RF noise in the power wires can adversely effect radio system performance.
INSULATE WIRES
Always insulate exposed wiring with heat shrink tubing or electrical tape to
prevent short circuits, which can damage ESC.
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.
trouble-shooting guide
Steering Channel Works But Motor Will Not Run
•
Red & Green status LEDs on solid––Check input signal harness connections at ESC
and receiver. Check input signal harness wiring sequence––Refer to Step 1.
•
Red status LED on solid & Green LED blinking––Check motor sensor harness
connection. Possible internal motor damage.
•
Blue & Green status LEDs both blinking. Possible ESC shut-down due to locked
rotor detection––return throttle to neutral position to regain motor control––check
vehicle’s drive train for free operation.
•
Blue & Red status LEDs blinking. Possible ESC thermal shut-down––Check gear ratio
& free operation of drive train for possible overloading/ESC is being severely over-
loaded––allow system to cool & return throttle to neutral position to regain motor
control.
LEDs will continue to blink until system is cooled down.
•
Blue & Amber status LEDs blinking. Possible motor thermal shut-down––Check gear
ratio & free operation of drive train for possible overloading/motor is being over-
loaded––allow system to cool & return throttle to neutral position to regain motor
control.
LEDs will continue to blink until system is cooled down.
•
Blue & Green (Locked Rotor Detection), Blue & Red (ESC Thermal Shut-Down), or
Blue & Amber (Motor Thermal Shut-Down) status LEDs blinking. ESC may have
shut-down & ESC’s neutral point is too far off to sense that transmitter throttle
has been returned to neutral––Refer to Step 4.
• Possible receiver damage––Check operation with a different receiver.
• Possible internal damage––Refer to Service Procedures.
Receiver Glitches/Throttle Stutters During Acceleration
• Receiver or antenna too close to ESC, power wires, battery, or motor.
• Bad connections––Check wiring, connectors, & sensor harness.
• Low voltage to receiver––Try Glitch Buster capacitor on receiver (Novak part#5626).
• External Power Capacitor damaged/not installed––Replace Power Capacitor.
• Battery pack damaged or weak––Try a different battery pack.
• Motor’s magnet has weakened or overheated––Replace rotor.
Motor and Steering Servo Do Not Work
• Check wires, receiver signal harness wiring & color sequence, radio system, crystals,
battery/motor connectors, & battery pack.
• Power wires too close to signal wires––Do not bundle power & signal wires together.
• Possible receiver damage––Check operation with a different receiver.
• Possible internal damage––Refer to Service Procedures.
Brushless Motor Runs Backwards
• Reverse motor rotation direction––Refer to ‘Programming/Gearing’ sheet.
Speed Control Runs Excessively Hot
• Gear ratio too low––Increase gear ratio (see ‘GEAR SELECTION’).
Model Runs Slowly/Slow Acceleration
• Gear ratio too high––Reduce gear ratio (see ‘GEAR SELECTION’).
• Check battery & connectors––Try another battery; replace connectors/battery if needed.
• Incorrect transmitter/ESC adjustment––Refer to Step 4.
• External Power Capacitor damaged/not installed––Replace Power Capacitor.
ESC Is Melted Or Burnt/ESC Runs With Switch Off
• Internal damage––Refer to Service Procedures.
*For more assistance call our Customer Service Department or check our website.
service procedures
Before sending your speed control or brushless motor system in for
service, review Trouble-Shooting guide and instructions. System may
appear to have failed when other problems exist.
After reviewing instructions, if you feel that your ESC/system requires
service, please obtain the most current product service options and
pricing by the following ways:
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/FAX:If you do not have access to the internet, please contact our customer
service department by phone or fax as listed below.
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.
•ESCs returned without a serial number will not be serviced under warranty•
ADDITIONAL NOTES:
• Dealers/distributors are not authorized to replace products thought to be defective.
• If a hobby dealer returns your product for service, submit a completed
PRODUCT
SERVICE FORM to the dealer and make sure it is included with product.
• Novak Electronics, Inc. does not make any internal electronic components (transistors,
resistors, etc.) available for sale.
BASIC SET-UP GUIDE
-- goat
• See ‘Programming/Gearing’ sheet for Proper Gearing, Profile Selection, Custom Programming, & Li-Po Cut-Off •
PRECAuTIONS
optional accessories
P1
P4
using a receiver battery pack
If you are planning to use an external receiver battery pack to power the
electronics you need to do the following:
1. Plug the external 5 cell (1.2VDC/cell) receiver battery pack into the
battery slot of the receiver.
2. Leave the ESC’s ON/OFF switch in the OFF position, and use receiver
battery pack’s ON/OFF switch to turn the system power on and
off––Do not use the ESC’s switch.
product warranty
The Goat Brushless/Brush Crawler ESC 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 or exposed circuit boards, damage
from using fewer than 4 or more than 7 cells (1.2 volts DC/cell) or more than 2 LiPo cells input voltage, cross-
connection of battery/motor power wires, overheating solder tabs, reverse voltage application, damage resulting
from thermal overload or short-circuiting motor (or connecting a brushless motor sensor harness while operating
in Brush-Mode), damage from incorrect installation of FET servo or receiver battery pack, not using or incorrect
installation of a Power Capacitor on the ESC or from using a damaged Power Capacitor, using a Schottky diode
in Brushless or Brush-Mode, using non-Novak Power Capacitor or motor, splices to input, ON/OFF switch, or
sensor harnesses, 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.
Because Novak 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 & motor 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. In no case shall our
liability exceed the product’s original cost. We reserve the right to modify warranty provisions without notice.
Designed by Novak Electronics, Inc. in Irvine, CA and assembled with globally sourced components.
©2007 Novak Electronics, Inc. • All Rights Reserved • No part of these instructions may be reproduced
without the written permission of Novak Electronics, Inc. • Goat ESC, Smart Braking II, Polar Drive
Technology, Radio Priority Circuitry, & One-Touch Set-Up are all trademarks of Novak Electronics, Inc.
AuxilliAry power OUtput
The Goat ESC features a set of power output pins for running auxiliary
cooling fans for motor or ESC cooling, or for detail items like a scale
winch or lights, and they will switch on & off with the ESC’s power
switch. These pins output 6.0 VDC (same as the BEC), so you will get
maximum output from cooling fans without over-powering them by
running directly from the battery pack’s voltage.
The pin-out label located on the front
lower section of the ESC’s case (under
the pins, push button, & LEDs) shows the
polarity of the power output pins.
They are the 2 pins on the front edge
of the circuit board--Positive (+) is on
the left, and Negative (–) is on the
right.
The set of 3 pins behind them
are for the user-replaceable input
signal harness--The polarity of those
is the same: Positive in the middle,
Negative on the right, and the extra
pin on the left is for the input signal.
The Novak 30x30mm cooling fan (Novak kit #5648) is the same one that
comes with the GTB ESC, and not only fits the size of the ESC’s heat sink
perfectly, it also comes with the connector already on it to match the
pins on the Goat ESC. Fans that do not have the proper connector on
them will need a connector (one end of an old receiver input harness would
work well) put on, or will need to be soldered to the pins--
Take extra care
if attempting to solder to the fan power output pins--Do not overheat the
pins or circuit board, and do not allow any solder or wire strands to cause
a short circuit with other pins.
Novak Electronics, Inc.
(949) 833-8873 • FAX (949) 833-1631
Customer Service e-mail:
cs@teamnovak.com
Monday-Friday: 8:00am-5:00pm (PST)
w w w . t e a m n o v a k . c o m
Should any of the 26G Teflon wires pull out of the connector on the
end of the motor’s sensor harness, re-insert them in the appropriate
slot in the connector as shown below. There is a small plastic tab that
grabs a small raised barb on the back of the metal socket crimped onto
the Teflon wire’s end. The plastic tab should be checked to make sure it
has not deformed excessively before inserting the metal socket into the
plastic connector housing with the barb toward to plastic tabs.
If the motor’s
sensor harness
gets damaged,
please contact
our Customer
Service Dept.
sensor harness wiring