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USER MANUAL OF XERUN-SCT PRO ESC
【PROGRAMMABLE ITEMS LIST】(
The italics texts in the above form are the default settings
Programmable
Items
1
2
Basic Items
Forward/Reverse
Forward
1. Running Mode
with Brake
with Brake
2.Drag Brake Force
0%
5%
3.Low Voltage
Non-Protection
2.6V/Cell
Cut-Off Threshold
4.Start Mode(Punch)
Level1
Level2
(Continued with the form at page 1)
Programmable
Items
1
2
Advanced Items
5.Max Brake Force
25%
50%
6.Max Reverse Force
25%
50%
= Drag Brake
7.Initial Brake Force
0%
Force
8.Neutral Range
6% (Narrow)
9% (Normal)
9.Timing
(Only for sensorless
0.00 °
3.75 °
motor)
10.Over-heat Protection
Enable
Counter
11.Motor Rotation
Clockwise
Clockwise
12.Lipo Cells
Auto Calculate
2 Cells
Programmable Values
1.1. Running Mode: In "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
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
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.
1.2. 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.
1.3. Low Voltage Cut-Off: The function 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 cut off, and
the red LED flashes in such a way: "☆-☆-, ☆-☆-, ☆-☆-".
There are 6 preset options for this item. You can customize the cutoff threshold by using a LCD program box (optional
equipment) to trim it with a step of 0.1V, so it will be more suitable for all kinds of batteries (NiMH, NiCd, Li-ion, Lipo, LFP,
etc).
1.4. 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. Please note
that if you choose "Level7" to "Level9" mode, you must use good quality battery pack with powerful discharge ability,
otherwise these modes 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 a softer
gear ratio.
1.5. 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 end point of the
backward zone. A very large brake force can shorten the brake time, but it may damage the gears. The "Disable" option
inhibits the inherent brake function of the speed controller. When this option is selected, the brake function is realized by
)
Programmable Value
3
4
5
6
7
Forward and
Reverse
10%
20%
40%
60%
80%
100%
3.0V
3.2V
3.4V
2.8V/Cell
/Cell
/Cell
/Cell
Level3
Level4
Level5
Level6
Level7
Level8
Programmable Value
3
4
5
6
7
75%
100%
Disable
75%
100%
20%
40%
12% (Wide)
7.50 °
11.25 °
15.00 °
18.75 ° 22.50° 26.25°
3 Cells
4 Cells
st
"click"), the ESC begins to brake the
nd
"click"), if the motor speed is slowed
a traditional mechanical disc-brake system driven by a servo.
1.6. Maximum Reverse Force: Sets how much power will be applied in the reverse direction. Different value makes
8
9
different reverse speed.
1.7. 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.
Level9
1.8. Throttle Neutral Range:
Please refer to the picture on
the right side to adjust the
neutral range as your like.
8
9
1.9. Timing: There are many
differences among structures
and parameters of different
brushless motors, so a fixed
timing ESC is difficult to compatible with all brushless motors. It is necessary to make the timing value programmable.
Please select the most suitable timing value according to the motor you are just using. Generally, higher timing value
brings out higher power output, but the whole efficiency of the system will be slightly lower down.
1.10. Over-Heat Protection: This function is permanently activated by the factory, user cannot disable it. The output
power will be cut-off when the temperature of the ESC is higher than a factory-preset value for 5 seconds. When the
protection happens, the Green LED will flash in such a way: "☆-, ☆-, ☆-".
1.11. Motor Rotation: You can use this item to change the rotation direction. Face to the motor shaft (That means the
rear cover of the motor is far from your face), and move the throttle stick to the top point of the forward zone. If this item is
set to "CCW", the shaft runs counter-clockwise. If this item is set to "CW", the shaft runs clockwise.
1.12. Lipo Cells: We strongly suggest setting the "Lipo Cells" item manually because sometimes the default setting
"Auto Calculate" will cause mistake. For example, if you are using a discharged 4S Lipo battery, the ESC may mistakenly
consider it as a fully charged 3S Lipo battery, and then the "Low voltage cut-off" protection function will be inordinate.
2.
Reset All Items To Default Values
At any time when the throttle is located in neutral zone (except in the throttle calibration or parameters program process),
hold the "SET" key for over 3 seconds, the red LED and green LED will flash at the same time , which means each
programmable item has be reset to its default value.
VER: HW-09-SCT PRO-20110905
Page 2 of 3
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