Manual
of
Sensorless Brushless Motor Speed Controller
Ver HW-01-081027.1
- 2 -
Wiring Diagram:
Lithium Battery Balance Discharge Monitoring and Protection (BDMP) Adapter For the “Guard” Series ESC:
We provide 2 kinds of Lithium Battery Balance Discharge Monitoring and Protection (BDMP) Adapters for user to choose.
Adapter #1 Adapter #2
VERY IMPORTANT! You MUST connect the BDMP adapter to the balance charge connector on battery pack BEFORE
connecting the main power lead to ESC. And if you use banana-shape connectors on main power wires (Input wires), please
connect the black wire (negative polarity) BEFORE red wire (positive polarity). So the right sequence is:
BDMP Adapter
→
BLACK wire of main power
→
RED wire of main power
Programmable Items:
1.
Brake Setting
：
Enabled / Disabled, default is Disabled
2.
Battery Type
：
Li-xx(Li-ion or Li-poly) / Ni-xx(NiMH or NiCd)
，
default is Li-xx.
3.
Low Voltage Protection Mode(Cut-Off Mode)
：
Soft Cut-Off (Gradually reduce the output power) or Cut-Off (Immediately stop the
output power). Default is Soft Cut-Off.
4.
Low Voltage Protection Threshold(Cut-Off Threshold)
：
Low / Medium / High, default is Medium.
When NOT using balance discharge monitoring and protection function
(i.e.
Not
plugging the balance charge connector
into the BDMP socket on the Guard series ESC, the ESC only monitors the voltage of the whole battery pack )
1)
For lithium batteries, the number of battery cells is calculated automatically. Low / medium / high cutoff voltage for each
cell is: 2.6V/2.85V/3.1V. For example: For a 3 cells lithium pack, when “Medium” cutoff threshold is set, the cut-off voltage
will be: 2.85*3=8.55V.
2)
For nickel batteries, low / medium / high cutoff voltages are 0%/45%/60% of the startup voltage (i.e. the initial voltage of
battery pack), and 0% means the low voltage cut-off function is disabled. For example: For a 10 cells NiMH battery, fully
charged voltage is 1.44*10=14.4V, when “Medium” cut-off threshold is set, the cut-off voltage will be:14.4*45%=6.5V
。
When using balance discharge monitoring and protection function
(i.e. Plugging the balance charge connector on battery
pack into the BDMP socket on the Guard series ESC, the ESC monitors not only the voltage of the whole battery pack but also
the voltage of each cell). For lithium battery
，
low / medium / high cut off voltage for each cell is: 2.6V/2.85V/3.1V. When the
voltage of any cell in battery pack is lower than the cut-off threshold, the protection function is activated.
5.
Startup Mode
：
Normal /Soft /Super-Soft, default is Normal.
Normal is preferred for fixed-wing aircraft. Soft or Super-soft are preferred for helicopters. The initial acceleration of the Soft and
Super-Soft modes are slower in comparison, usually taking 1 second for Soft startup or 2 seconds for Super-Soft startup from initial
throttle advance to full throttle. If the throttle is closed (throttle stick moved to bottom) and opened again (throttle stick moved to top)
within 3 seconds of the initial startup, the restart-up will be temporarily changed to normal mode to get rid of the chances of a crash
caused by slow throttle response. This special design is very suitable for aerobatic flight when quick throttle response is needed.
6.
Timing
：
Low / Medium / High, default is Low.
Note2
Usually, low timing value can be used for most motors. We recommend the
Low
timing value for 2 poles motor and
Medium
timing
value for motors with more than 6 poles to get a high efficiency. For higher speed,
High
timing value can be chosen.
Note2
: After changing the timing setting, please test your RC model on ground prior to flight!
Special Note
Some high KV out-runner motors have very special construction, the space between each magnet is very large, and many ESCs can’t
drive these motors. After much testing, our ESCs have proven to work very well with these types of motors. Some RC enthusiasts still have
several questions about the programming value for these special motors. Therefore, we have provided some suggestions as follows:
Programmable Value Suggestion
Motor
Timing Startup
Mode
Generic in-runner motor
Low
Generic out-runner motor
Low or Medium
Align 420LF (Made in TAIWAN, out-runner)
High (MUST)
Usually, aircraft use “Normal” startup mode
and helicopter use “Super-soft” startup mode
450TH (Made in TAIWAN, out-runner)
Low
Soft (MUST)
Begin To Use Your New ESC
Please start the ESC in the following sequences:
1.
Move the throttle stick to the bottom position and then switch on the transmitter.
2.
Connect the battery pack to the ESC, the ESC begins the self-test process, a special tone “ 123” is emitted, which means the
voltage of the battery pack is in normal range, and then N “beep” tones will be emitted, means the number of lithium battery cells.
Finally a long “beep------” tone will be emitted, which means self-test is OK, the aircraft/helicopter is ready to go flying.
If nothing is happened, please check the battery pack and all the connections;
Receiver
Red
Black
Power -
Power +
Connect with balance
charge connector on
battery pack
brushless
motor
ESC
B
A
TTE
RY
MOTOR
GUARD-25A
Electronic Speed Controller
BRUSHLESS MOTOR
