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1
step
–
connect input harness
The Goat 3S has a user-replaceable
input harness with the industry-standard
receiver connector on it & works with all
major radio brand's new receivers (Refer
to Figure 1 to see how to connect the
included user-replaceable input harness to
Novak's XXtra Synthesized FM Receiver:
75 Mhz). However, some very old
receivers must have the wiring sequence
in the plastic 3-pin JST connector
housing changed on the receiver end.
This is important, as the receiver &
servo electronics may be damaged if the
sequence is incorrect.
FIGURE 1
For instructions on changing the wiring
User-replaceable input harness
sequence for older receivers, visit the
plugged into the Novak's XXtra
Novak Web site.
Synthesized FM Receiver: 75 Mhz.
2
step
–
ESC MOUNTiNG
Mount the speed control so that the power wires are as far away from other electronics
as possible. Make sure that the speed control or the power wires will not interfere with
any moving parts in the vehicle. Select a location that has good cooling and allows
airflow through heat sinks.
If the ESC gets air flow, it will run cooler; and that means it will be more efficient!
1. Install 3s li-po EQUIpmEnt
(if using 2s li-po, skip to 2)
If using a 3S Li-Po or 9-cell Ni-MH battery pack, the included external BEC module
(Novak #5463) and cooling fan (Novak #5648) must be installed. Refer to STEP 2A
below and COOLING FAN INSTALLATION on page 4 for installation instructions.
2. moUnt spEEd contRol In vEhIclE
Use the included double-sided tape to mount the speed control in vehicle (do not use
glue). Avoid contact with side walls or other chassis components to avoid vibration damage.
Be sure receiver & antenna are mounted as far from ESC, power wires, battery, &
servo as possible--these components all emit RF noise when throttle is 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).
3. sEcURE powER tRans-cap modUlE to chassIs
Use included double-sided tape, or a tie-wrap, to mount Power Trans-Cap Module to
the vehicle's chassis or shock tower. Module can also be tie-wrapped along the power
wires--this requires less space on the chassis and provides good isolation from vibration.
4. Install on/oFF swItch
Use a screw or the included double-sided tape, and mount the switch where it
will be easy to access--be sure to select a position where it will not get damaged
or get switched OFF during a crash or roll-over.
2
steP
A–
Bec installation
the included novak external bEc module is required for the Goat 3s
when using a 3s li-po/9 ni-mh batteries. This external BEC supplies
power to the receiver and servos; the internal BEC supplies power to the
ESC and fan.
1. moUnt EXtERnal bEc In vEhIclE
Use the included tie-wraps or double-sided tape to mount the BEC and
the ON/OFF switch on your chassis, close to the main battery pack.
2. soldER wIREs to maIn powER soURcE
Solder red (positive) wire of BEC to ESC's positive power wire tab. Solder
black (negative) wire of BEC to ESC's negative power wire tab. Shorten
red and black BEC wires, if possible.
3. plUG thE bEc Into thE REcEIvER
Plug the BEC's 3-pin JST connector into the receiver's battery slot, making
sure the polarity is correct. On most receivers, the black wire will face toward
the outside of the receiver, and the red will face the center of the receiver.
4. REmovE REd wIRE FRom Esc's InpUt haRnEss
Remove the red wire from the connector on the ESC's input signal harness.
Insulate the red wire to avoid short-circuiting; the wire is live.
Damage will occur if red wire is not disconnected and will void warranty!
5. EXtERnal bEc opERatIon
Once installed, first, turn on BEC's power switch, and then turn on ESC's power
switch. The BEC will be providing power for only the servos and receiver, NOT
the ESC. When turning off the radio system, turn ESC off first, then BEC.
a. When the BEC is switched ON, the blue light will turn on.
NOTE: Double check that your battery pack is fully charged before operating the BEC.
You will NOT have radio control of BEC if the main battery fails or is fully discharged.
3
step
–
wirinG speed control to motor
NOvak bRuSHlESS mOtOrS
1. soldER motoR powER wIREs to motoR
a. Cut the BLUE, YELLOW, & ORANGE silicone motor power wires to the
desired length, and strip 1/8-3/16" of insulation from the end of each
wire. Tightly twist the exposed strands of wire, and tin the exposed
end section of each wire with solder with a good, high heat iron.
b. Solder the ESC's BLUE Phase 'A' motor wire to the motor's phase 'A'
solder tab. Apply heat to exposed wire with soldering iron, and add
solder to the tip of the iron & the wire--Add just enough solder to
form a clean & continuous joint from the solder tab up onto the wire.
IMPORTANT NOTE: DO NOT OVERHEAT SOLDER TAbS
Prolonged/excessive heating of solder tabs (motor or ESC) will
cause damage.
c. Solder the ESC's YELLOW Phase 'B' motor wire to the motor's phase
'B' solder tab as described in Step 5B above.
d. Solder the ESC's ORANGE Phase 'C' motor wire to the motor's phase
'C' solder tab as described in Step 5B above.
NOTE: Make sure no wire strands have strayed to an adjacent
solder tab, this will result in short-circuiting & severe ESC damage,
which will void the warranty.
2. connEct motoR's sEnsoR haRnEss to Esc
Insert the 6-pin connector on the end of the motor's Teflon sensor wires
into ESC's sensor harness socket--the connector is keyed and will only
go together in one direction. Use Novak Brushless Extension Harnesses
(Novak #S5357 & #S5358), if necessary.
bRuSHlESS mOtOr precautions
FACTORy-INSTALLED pOWER TRANS-CAp MODuLE REQuIRED
The factory-installed Power Trans-Cap Module MUST be used with brushless motors. If
Power Trans-Cap Module becomes dented or damaged, ESC failure can occur--replace
immediately (Novak kit #5686). Longer Power Capacitor wires will decrease performance.
DO NOT uSE SCHOTTKy DIODES
Schottky diodes must NOT be used with reversible ESCs. Schottky diode usage will
damage the ESC & void warranty.
MOTOR CApACITORS NOT NEEDED
Novak brushless motors do not require external motor capacitors.
(Fig. 5)
Servo plugged into
steering ch. (#1)
Power
One-Touch
Status LEDs
output
button
pins
ESC
ON/OFF
Switch
Blue power wire
(motor phase 'A')
Sensor
Yellow power wire
harness
(motor phase 'B')
Orange power wire
(motor phase 'C')
Novak sensor-
based crawler
brushless motor
P2
bRuSH-typE mOtOrS
(Fig. 2)
1. dIsconnEct bRUshlEss motoR sEnsoR haRnEss
The Goat 3S ESC automatically switches to Brush-Mode when the ESC's power
is switched ON and no brushless motor sensor harness is connected.
2. motoR capacItoRs
Electric brush-type motors generate RF noise that causes interference. Novak's
0.1µF (50V) non-polarized, ceramic capacitors (Novak #5620) must be used on
all brushed motors to reduce motor noise & prevent ESC damage.
Note: Some motors come with built-in capacitors. If your motor only has 2 capacitors, you
need to install a capacitor between the positive & negative motor tabs––If you experience radio
interference with built-in capacitors only, install external ones.
Solder 0.1µF (50V) capacitors between:
• POSITIVE (+) & NEGATIVE (–) motor tabs.
• POSITIVE (+) motor tab & GROUND tab*.
• NEGATIVE (–) motor tab & GROUND tab*.
3. REmovE oRanGE motoR wIRE
With brush motors, the ORANGE wire is not necessary and must be desoldered & removed.
4. soldER Esc's blUE & YEllow wIREs to motoR
a. Cut the ESC's BLUE & YELLOW silicone motor power wire to the desired length
to reach the motor, and strip about 1/4" of insulation from the end of each
wire. Twist & tin the ends of each wire (individually).
b. Solder the BLUE motor power wire to the NEGATIVE (–) Motor Tab.
c. Solder the YELLOW motor power wire to the POSITIVE (+) Motor Tab.
bRuSHED mOtOr precautions
FACTORy-INSTALLED pOWER TRANS-CAp MODuLE REQuIRED
The factory-installed Power Trans-Cap Module MUST be used with brush-type
motors. If Power Trans-Cap Module becomes dented or damaged, ESC failure can
occur--replace immediately (Novak Kit #5686). Longer wires will decrease performance.
DO NOT uSE SCHOTTKy DIODES
Schottky diodes must NOT be used with reversible ESCs.
Schottky diode usage will damage the ESC & void warranty.
XXtra Synthesized
FM Receiver
Servo plugged into
(Novak #S2675N)
steering ch. (#1)
User-replaceable
input signal
One-Touch
harness (Ch.2)
button
Red power wire
(battery positive)
Black power wire
(battery negative)
Battery
connector
Power Trans-
Cap Module
(Novak #5686)
ESC
ON/OFF
Trail
Switch
excess
wire off
Blue motor
top of
phase wire
antenna
to motor
mast
(–)
negative
step
To connect the Goat 3S to the battery pack using connectors, we suggest low-loss,
high power connectors like Novak's Power Connectors (Novak #5731) or Dean's Ultra.
(Fig. 3-4)
• Use polarized connectors. Reverse voltage will damage ESC & void warranty.
• Use a female connector on battery packs to avoid shorting.
1. Install battERY connEctoR
a. Cut the RED & BLACK silicone battery power wire to the desired length, and
b. Solder the ESC's RED (+) battery wire to the connector's POSITIVE (+) contact.
c. Solder the ESC's BLACK (–) battery wire to the connector's NEGATIVE (–) contact.
D. Cover the exposed solder joints with heat shrink tubing to prevent possible short circuits.
2. connEct Esc to battERY pacK
Connect the speed control's battery connector to a fully charged 2-3 Li-Po cells
*If motor has no ground tab
or 4-9 Ni-MH cells (1.2 VDC/cell) battery pack.
(as shown here), solder the
NOTE: If using Ni-MH batteries, the Li-Po Cut-Off Circuitry must be deactivated (page 6).
capacitors to motor can.
Negative (–) motor tab
step
0.1µF Capacitors
Positive (+) motor tab
With ESC connected to (at least) a receiver & a charged battery pack:
1. tURn on thE tRansmIttER's powER
Ground / motor can
2. pREss & hold Esc's onE-toUch/sEt bUtton
3. tURn on thE spEEd contRol's powER
With transmitter throttle at neutral, and still pressing the sEt button, slide the ESC's
on/oFF switch to ON position.
4. contInUE holdInG sEt bUtton UntIl REd lEd comEs on
5. RElEasE 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.
7. pUsh tRansmIttER thRottlE to FUll-bRaKE/REvERsE
Hold it there until the green status lEd blinks green.
8. REtURn tRansmIttER thRottlE to nEUtRal
Red status lEd will turn solid red, indicating that speed control is at neutral and
that proper programming has been completed.
NOTE: If transmitter settings are changed, One-Touch Programming must be repeated. If
NOTE: Whenever the One-Touch set-up is performed, the ESC will automatically
revert back to the factory default settings, & the Throttle Profile will revert to #2
XXtra Synthesized
FM Receiver
(Novak #S2675N)
Power
output
pins
User-replaceable
input signal
Status
harness (Ch.2)
LEDs
Red power
wire (battery
positive)
Battery
connector
Black power
wire (battery
negative)
Desolder
Power Trans-
orange
Cap Module
motor
Trail
phase
(Novak #5686)
excess
wire
wire off
top of
antenna
mast
Yellow motor
phase wire to
motor positive (+)
Brush-type
motor
*Above BEC Set-Up Photo is pictured without a fan, battery pack, servo, antenna or motor, but must be included in actual set up.
P3
4
–
wiring esc to battery
(Fig. 2 & 4)
strip 1/8"–3/16" of insulation from the end of each wire. Tightly twist and tin
the ends of the exposed wire with solder.
5
–
one-touch programming
Note: Motor will not run during programming even if connected.
you experience any problems, turn off ESC & repeat One-Touch.
when in Brushless-Mode.
ESC
Plug BEC into
ON/OFF
battery slot of
Switch
receiver
(Turn on 2nd)
User-
Power
replaceable
output
input signal
pins
Remove red
harness (Ch.2)
wire from the
One-
connector on
Touch
the ESC's input
button
signal harness
Status LEDs
Solder red wire
to battery (+)
Shorten red and
black wires,
if necessary
3 Amp
Solder black
External
wire to
High-Voltage
Black power wire
battery (–)
Universal BEC
(battery negative)
(Novak #5463)
Cooling fan
required for
3S Li-Po use
(refer to Fig. 6)
Red power
wire (battery
BEC Power Switch
positive)
Power Trans-
(Turn on 1st)
Cap Module
(Novak #5686)
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