User Manual of
“SEAKING V3 RTR” Series Brushless Speed Controller for Boat HW-SM704DUL-V2-20180111 Page
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voltage the moment it is connected to the controller, then the ESC counts the cells number. For example, if the battery voltage is lower than
8.8V, it will be identified as 2S Lipo battery. In order to ensure the ESC calculate the cells number correctly, please always use a fully charged
battery to connect the ESC. If the battery is not fully charged or partly discharged, then the “Auto Calculate” may get a wrong result.
Hint: In the startup process, the motor will emit several “Beeps” to indicate the Lipo cells number; it is helpful for you to check if it is
consistent with the actual cells number in your battery pack. If you often use Lipo battery packs with the fixed number of cells, then we
strongly suggest you to set the “Lipo Cells” to a fixed value instead of using the “Auto Calculate”, as this can ensure the low-voltage cutoff
protection works normally all the time.
3.
Low-voltage Cutoff Threshold:
This function prevents the Lipo battery pack from over-discharging. The ESC detects the battery voltage all
the time, if the voltage goes below the threshold for 2 seconds, the output power will be cut off, then the Red LED blinks slowly. The controller
can be re-operated at the halved power after the throttle returns to zero. then please replace the battery pack as soon as possible.
Warning!
If you ignore the low voltage cutoff warning and keep running, the Lipo battery will be damaged irreversibly!
a)
How to calculate the cutoff threshold of a whole battery pack:
The cutoff threshold of a battery pack = the threshold of each cell x cells number
For example, if the threshold of each cell is set to “3.2V/Cell”, and the battery pack is a 3S (3 Cells), then the cutoff threshold of this
battery pack is 3.2x3=9.6V.
b)
If you are using a NiMH battery:
NiMH battery is not easy to be damaged, so you needn’t worry about the over-discharging problem, you can set this programmable item
to “No Protection”.
4.
Timing:
Please select the most suitable timing option according to the motor you are using. The correct timing makes the motor run
smoothly. Generally speaking, higher timing brings out higher output power, higher speed and also higher temperature.
【
Program the ESC
】
1.
Program the ESC with your transmitter
By 4 Steps:
Enter the programming mode
→
Select programmable item(s)
→
Choose a new value for the selected item
→
Exit
2.
Program the ESC with a Program Card
Program card is an optional equipment for boat ESCs, it has 3 digital LEDs to display the programmable items and corresponding parameter
values, so the user interface is very intuitive. It’s quite easy to program ESCs with this small equipment. For more detailed information, please
read its operation manual.
【
Multiple Protections
】
1.
Low Voltage Cutoff Protection
：
when the battery voltage falls below the preset cutoff threshold for over 1 second, the ESC will cut off the
output and stop working, then the Red LED blinks slowly. The controller can be reoperated at the halved power after the throttle returns to
zero.
2.
Overheat Protection
：
when the ESC temperature goes above the factory preset value (100
℃
or 212
℉
), the ESC will cut off the output and
stop running, then the Green LED flashes slowly. The controller can be reoperated at the halved power after the throttle returns to zero, the
output will resume if the temperature decreases below 80
℃
(176
℉
) .
3.
Throttle Signal Loss Protection
：
when the receiver detects no throttle signal (from the transmitter) for over 0.1 second, the ESC will cut off
the output. The controller will not resume running until the signal is detected again. Hereby, we suggest users setting the no signal protection
(or F/S Protection) on the Throttle channel (on the transmitter) to “Output off” or “Neutral position” to ensure that the motor can be stopped
when the throttle signal is lost.
【
LED Indications
】
There are two LED indicators in the ESC
，
a Green one and a Red one.
1.
When the throttle is above the zero-speed position, the Red LED will come on and the motor starts to spin; while pushing the throttle to the
maximum position (/ full throttle), the motor runs at its full speed and both the Red & Green LEDs light up.
2.
When setting the throttle range and parameters of the ESC, the motor beeps and Red LED flashes simultaneously for easy observation.
3.
Green LED blinks slowly denoting the ESC has entered the overheat protection, Red LED flashes slowly means the Low-Voltage Cutoff
Protection is activated.
【
Troubleshooting
】
Trouble
Possible Cause
Solution
After powered on, the motor doesn’t emit any
beep tone and the LED doesn’t light up.
No battery voltage is inputted to the ESC or
got the polarity reversed.
Check the connection between the battery
and ESC, please re-solder if poor soldering
exists.
If the polarity is reversed, please cut off the
power immediately. Otherwise, the ESC
will be damaged irreversibly.
After powered on, the motor doesn’t work, but
the following alert tone is emitted:
“beep-beep-, beep-beep-” (here the time interval
is 1 second).
The battery voltage is abnormal; or the
startup temperature of the ESC is above 80
℃
(176
℉
).
Check the battery voltage;
Check whether the water cooling system
runs smoothly or not, or change another
ESC with greater amperage capability.
Pulling the throttle trigger, while the boat goes
backward.
Wrongly connected the ESC and motor wires. Swap any two wires connections between
the ESC and the motor.
The boat cannot run backward.
The ESC is not set to “Forward and
Backward” running mode;
The ESC cannot recognize the throttle neutral
point.
The throttle range is set to "Full-Range" mode
for a stick transmitter.
Set the running mode to “Forward and
Backward”;
Recalibrate the throttle range according to
instructions on page 1.
Set the throttle range to "Half-Range "
mode for the stick transmitter.
The output power suddenly weakens.
The Low-Voltage Cutoff Protection or the
Overheat Protection is activated.
Replace another fully-charged battery;
Cool the ESC down before using it again.
The motor cannot be started normally, and it
only stutters.
The ESC and motor wire are not well
connected or the ESC / motor is damaged
Check all the connections; replace the ESC
or the motor. (Note: please test with a
small throttle value first, then increase the
value after the motor returns to normal.
Otherwise, the ESC/motor may get
damaged again.
STEP 1. Enter the programming mode
1.
Switch on the transmitter, move the throttle stick to the top position (/full throttle).
2. Connect the battery pack to the ESC, wait for 2 seconds, the motor emits “Beep-Beep-” tone.
3. Wait for 5 more seconds, the motor emits a special tone “
♪
”, that means the controller enters the programming mode.
STEP 2. Select programmable items
After entered the programming mode, you will hear the following 4 kinds of “Beep” tones circularly. If move the throttle stick to the bottom
position (/full brake) within 3 seconds after one kind of “Beep” tone emits, then the corresponding item will be selected.
1. “Beep-” Running Mode (1 short “beep”)
2. “Beep-Beep-” Lipo Cells (2 short “beeps”)
3. “Beep-Beep-Beep-” Low-voltage Cutoff Threshold (3 short “beeps”)
4. “Beep-Beep-Beep-Beep” Timing (4 short “beeps”)
STEP 3. Choose a new value for the selected item
After entered a certain item, the motor will beep in a loop. Set the corresponding value by moving the throttle stick to the top position
(/full throttle) when you hear the tone, then a special tone “
♪
” emits, which means the value has been chosen and saved into the ESC.
(If keep the throttle stick at the top position (/full throttle) for over 2 seconds, you can return to STEP 2 and set other items; if move the
stick to the bottom position (/full brake) within 2 seconds, then you will exit this programming mode directly.)
Tone
Items
“B”
1 short Beep
“BB”
2 short Beeps
“BBB”
3 short
Beeps
“BBBB”
4 short
Beeps
“Beep—”
1 long
Beep
“Beep—B”
1 long +
1 short
“Beep—BB”
1 long+
2 short
“Beep—BBB”
1 long+
3 short
Running Mode
Fwd. Only
Fwd. & Bwd.
Lipo Cells
Auto Calculate
2 Cells
3 Cells
4 Cells
5 Cells
6 Cells
Low-voltage
Cutoff Threshold
No Protection
2.8V/Cell
3.0V/Cell 3.2V/Cell 3.4V/Cell
Timing
0°
3.75°
7.5°
11.25°
15°
18.75°
22.5°
26.25°
Note5:
One long “Beep—” = 5 short “Beep”. For example, “Beep—Beep” tone means the No.6 value.
（
5+1
＝
6
）
STEP 4. Exit the programming mode
There are 2 methods to exit the programming mode:
1.
In STEP 3, the motor emits the special tone “
♪
” after chosen the value, at this moment user can move the throttle stick to the
bottom position (/full brake) in 2 seconds to exit the programming mode.
2. Disconnect the battery pack from the ESC to exit the programming mode forcibly.
