Hobbywing JUSTOCK SPEC Race ESC User Manual
Page 2
USER MANUAL OF JUSTOCK CLUB SPEC ESC HW-SM501ENG-20120702 Page 2 of 3
【TROUBLE SHOOTING】
Trouble
Possible Reason
Solution
The connections of battery pack
are not correct
Check the power connections, replace the
connectors or switch
The switch is damaged
After power on, the red LED lights, but
motor cannot run
Throttle signal is abnormal
Check the transmitter and the receiver, and
check the signal wire connection of your ESC
1) The wire connections between
the ESC and the motor need to be
changed
2) The chassis is not suitable for
this ESC
The red LED flashes means Low voltage
protection, please replace the battery pack
The green LED flashes means Over-heat
protection, please wait for some minutes to
cool the ESC
1) The battery has a bad discharge
performance
1) Use a better battery
2) The gear rate is too aggressive
so the motor load is too heavy
2) Use lower KV motor or change the gear
rate or set the "Start Mode" more softly
1) Check the connection of Hall sensor cable
to make it firmly connecting the motor with
the ESC
2) The Hall sensors in the motor are
damaged, please change the motor
The motor trembles but cannot start
smoothly
1) The connctions are not A-A, B-B
and C-C
2) The ESC is damaged
1) Check the connections
2)Contact the dealer for after-sales service
After power on, motor doesn
’t work, no
sound is emitted
After power on, motor can
’t work, but
emits
“ beep-beep-, beep-beep- ” alert
tone. (Every
“ beep-beep- ” has a time
interval of 1 second )
Input voltage is abnormal, too high
or too low
When the throttle stick locates in the
neutral range, the red LED and the
green LED flashes synchronously
The motor is a sensored motor, but
the ESC detects abnormal signal
from the sensor, so it changes to
sensorless mode automatically
Check the voltage of the battery pack
The
motor
runs
in
the
opposite
direction
1) Swap any two wire connections between
the ESC and the motor. (Note: This method is
ONLY available for SENSORLESS motor )
2) Please don't use the ESC for this special
chassis
When accelerating quickly, the motor
stops or trembles
The motor stops running while in
working state
The ESC has entered the
“ Low
voltage protection mode
” or the “
Over-heat protection mode”
【PROGRAM THE ESC】
1. Programmable Items List
(The italics texts in the form are the default settings)
1
2
3
4
5
6
7
8
9
1. Running Mode
Forward
with Brake
Forward/Reverse
with Brake
Foward/Reverse
(For Rock Crawler)
2.Drag Brake Force
0%
5%
10%
20%
40%
60%
80%
100%
3.Low Voltage
Cut-Off Threshold
Non-Protection
2.6V/Cell
2.8V/Cell
3.0V
/Cell
3.2V
/Cell
3.4V
/Cell
4.Start Mode(Punch)
Level1
Level2
Level3
Level4
Level5
Level6
Level7
Level8
Level9
5.Max Brake Force
25%
50%
75%
100%
6.Max Reverse Force
25%
50%
75%
100%
7.Initial Brake Force
= Drag Brake
Force
0%
20%
40%
8.Neutral Range
6% (Narrow)
9% (Normal)
12% (Wide)
9.Timing
10.Over-heat Protection
Enable
Disable
Permanently set to 0 degree, unchangeable
Programmable
Items
Programmable Value
Basic Items
Advanced Items
2. Explanation For Each Programmable Item
2.1. Running Mode: With
“Forward with Brake” mode, the car can go forward and brake, but cannot go backward, this
mode is suitable for competition;
“Forward/Reverse with Brake” mode provides backward function, which is
suitable for daily training.
Note:
“Forward/Reverse with Brake” mode uses “Double-click” method to make the car go backward.
When you move the throttle stick from forward zone to backward zone for the first time (The 1
st
“click”), the ESC
begins to brake the motor, the motor speeds down but it is still running, not completely stopped, so the backward
action is NOT happened immediately. When the throttle stick is moved to the backward zone again (The 2
nd
“click”),
if the motor speed is slowed down to zero (i.e. stopped), the backward action will happen. The
“Double-Click”
method can prevent mistakenly reversing action when the brake function is frequently used in steering.
By the way, in the process of braking or reversing, if the throttle stick is moved to forward zone, the motor will run
forward at once.
“Forward/Reverse” mode uses “Single-click” method to make the car go backward. When you move the
throttle stick from forward zone to backward zone, the car will go backward immediately. This mode is usually used
for the Rock Crawler.
2.2. Drag Brake Force: Set the amount of drag brake applied at neutral throttle to simulate the slight braking effect of a
neutral brushed motor while coasting.
2.3. Low Voltage Cut-Off: The function mainly prevents the lithium battery pack from over discharging. The ESC
detects the battery
’s voltage at any time, if the voltage is lower than the threshold for 2 seconds, the output power
will be reduced 70%, after 10 seconds the output power will be completely shut off and the red LED flashes in such
a way:
“☆-☆-, ☆-☆-, ☆-☆-”. Please stop your car at the track side as soon as possible to avoid obstructing other
racing cars. For STOCK motors, the 3.4V/Cell cut-off threshold is suggested.
Please note that the cutoff threshold is basically calculated for each LITHIUM (Lipo) battery cell, so for NiMH
battery packs, if the voltage of the whole NiMH battery pack is higher than 9.0V, it will be considered as a 3 cells
lithium battery pack; If it is lower than 9.0V, it will be considered as a 2 cells lithium battery pack. For example, a
NiMH battery pack is 8.0V, and the threshold is set to 2.6V/Cell, so it will be considered as a 2 cells lithium battery
pack, and the low-voltage cut-off threshold for this NiMH battery pack is 2.6*2=5.2V.
There are 6 preset options for this programmable item. You can customize the cutoff threshold by using an
advanced LCD Program Box (Optional equipment) to trim it with a step of 0.1V, so it will be suitable for all kinds of
batteries (NiMH, NiCd, Li-ion, Lipo, LFP, etc).
2.4. Start Mode (Also called
“Punch”): Select from “Level1” to “Level9” as your like, Level1 has a very soft start
effect, while level9 has a very aggressive start effect. From Level1 to Level9, the start force is increasing. If you
choose
“Level7” to “Level9”, you must use good quality battery with powerful discharge ability, otherwise you
cannot get the burst start effect as you want. If the motor cannot run smoothly (the motor is trembling), it may
caused by the weak discharge ability of the battery pack, please choose a better battery or increase the gear rate.
2.5. Maximum Brake Force: The ESC provides proportional brake function. The brake force is related to the position
of the throttle stick. Maximum brake force refers to the force when the throttle stick is located at the top point of the
backward zone. A very large brake force can shorten the brake time, but it may damage the gears.
2.6. Maximum Reverse Force: Sets how much power will be applied in the reverse direction. Different value makes
different reverse speed.
2.7. Initial Brake Force: It is also called
“minimum brake force”, and it refers to the force when the throttle stick is
located at the initial position of the backward zone. The default value is equal to the drag brake force, so the brake
effect can be very smoothly.
2.8. Throttle Neutral Range:
Please refer to the following
picture to adjust the neutral
range as your like.
2.9. Timing: The
“timing” item is
disabled
for
JUSTOCK
CLUB SPEC ESC. It is
permanently
set
to
0
degree.
2.10. Over-Heat Protection: If
the function is activated, the
output power will be cut-off
when the temperature of the ESC or the internal temperature of the sensored brushless motor is up to a
factory-preset value for 5 seconds. When the protection happens, the Green LED will flash.
When the ESC is over-heat: The Green LED flashes as
“☆-, ☆-, ☆-” (Single flash).
When the motor is over-heat: The
Green LED flashes as “☆-☆-, ☆-☆-, ☆-☆-” (Double flash).
Note: The motor over-heat protection function is only available for the sensored brushless motor made by the
same manufacturer of the ESC. For motors made by other manufacturers, this function maybe not available or the