Helipal SRD250 User manual

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SRD250
Storm Racing Drone
USER MANUAL V1.3

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DISCLAIMER
Please read this disclaimer carefully before using this product. This product is a
hobby with motors but not a toy which is not suitable for people under the age of
18. By using this product, you hereby agree to this disclaimer and signify that you
have read them fully. You agreed that you are responsible for your own conduct
and content while using this product, and for any consequences thereof.
Before you fly the drone
1) Make sure all connections are good, and keep children and animals away
during flying, firmware update, system calibration and parameter setup.
2) Always fly the drone away from unsafe conditions, such as obstacles, crowds,
high-voltage lines, etc.
3) Do not use in bad weathers such as rainy day, snow, windy (more than
moderate breeze), hail, lighting, tornadoes, hurricanes etc.
4) Check whether the propellers and the motors are installed correctly and firmly
before flight. Make sure the rotation direction of each propeller is correct.
5) Check whether all parts of the drone are in good condition before flight. Do not
fly with aging or broken parts.
6) Never overcharge LiPo batteries. Do not charge above 4.2V per cell. When the
battery is fully charged, disconnect it from the charger. Never leave the battery
charger unattended during charging.
7) Never discharge batteries to below 3.3V per cell
8) Remove batteries when not using the drone.

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Package includes:
1. Storm Racing Drone SR250
2. Walkera DEVO 7 Radio System
3. Li-Po Battery (11.1V 2200mAh for 3 cells edition or 14.8V 1800mAh for 4 cells
edition)
4. 6pcs Clockwise 6045 Dual-Blade Propeller (4 of them are spare parts)
5. 6pcs Counter-Clockwise 6045 Dual-Blade Propeller (4 of them are spare parts)
6. SKYRC Battery Charger (E3 for 3 cells edition or E4 for 4 cells edition)
7. 2.0 mm Hex Wrench (for column screws)
8. 2.5 mm Hex Wrench (for motor screws)
9. 10mm Hex Nut Driver Driver (for motor cap)
10. 5.5mm Hex Nut Cross Wrench (for airframe locknut)
11. Anti-Slip Mat for Battery
12. Clover Leaf Antenna (4 cells edition only)

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Important Notes
1) Install antenna tube
2) Install battery anti-slip mat

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3) Make sure that there is clearance between the battery and propellers
(If the battery is damaged, don’t use it anymore)
4) Make sure that the antenna is secured before connect the battery
(Video transmitter may burn out if the antenna is not secured)

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5) Do not touch the LED or Video Transmitter. It’s hot!
6) Set the Battery Buzzer if necessary.

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Quick Start

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How to control

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Circuit Diagram

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FPV System
Our TS5823 video transmitter has up to 32 different video channels available to avoid interference
with other channels.
If two or more drones are flying at the same time,
try to select different video frequency to avoid
video interference. The bigger different in video
frequency between drones, the less interference
generated.
Default Setting is channel 5665M.
Always check the supported channels of you FPV
reception devices such as monitor, goggle
Frequency Table
Frequency
Switch (123456)
Frequency
Switch (123456)
5645MHz
001100
5805MHz
001110
5665MHz
101100 (DEFAULT SETTING)
5809MHz
110010
5685MHz
011100
5820MHz
110000
5705MHz
111100
5825MHz
101110
5725MHz
000110
5828MHz
010010
5733MHz
111010
5840MHz
010000
5740MHz
111000
5845MHz
011110
5745MHz
100110
5847MHz
100010
5752MHz
011010
5860MHz
100000
5760MHz
011000
5865MHz
111110
5765MHz
010110
5866MHz
000010
5771MHz
101010
5880MHz
000000
5780MHz
101000
5885MHz
110100
5785MHz
110110
5905MHz
010100
5790MHz
001010
5925MHz
100100
5800MHz
001000
5945MHz
000100

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FAQ
Lost connection with radio controller
If the drone cannot connect with transmitter (Red LED inside the RX701 receiver blink rapidly), that
means the radio system is not bind successfully. You need to do this re-binding step below:
1) Make sure you have NOTHING plugged into BATT port on the RX701 receiver.
2) On the transmitter, select MODEL > FIXED ID, press ENT, if it is showing the code, then press ENT again, press
one more time till it is showing RUN, press "R" to choose NO, press ENT again, it's showing FIXID, press "R" again
to choose OFF, then press EXT, and turn off transmitter.
3) Plug the bind plug into Batt port on the RX701 receiver, with this plug still in BATT port and power up the drone, you
will see receiver flashing red slowly, then means old code has been erased, unplug drone battery and remove this
bind plug.
4) Now you need to activate the Fixed ID function. Turn on transmitter, and then make sure Throttle Stick is all the
way down, all trimming is neutral, both corner FMOD switch and Throttle Switch is off (pointing backward) and all
switches on the transmitter pointing upward then turn off transmitter.
5) Connect drone battery; the receiver will start flashing, place drone on flat surface.
6) Turn on transmitter, you should see black box running on the transmitter screen, do not touch anything or you will
break the searching mode.
7) Do not touch anything (around 7-10 seconds) until transmitter stop flashing and you will see the RX701 receiver
have solid light that means binding has completed.
8) On the transmitter, go to MODEL > FIXED ID, turn it ON, then press DN button to confirm the code, then press
ENT, and press ENT again to confirm, it will ask you to RUN, choose YES and press ENT. From now on your
receiver is bound to this memory on your DEVO 7.
Radio Controller Parameters
If you reset your radio controller (Devo 7) setting, you can apply the setting below:
1. [MODEL] > [TYPE] > AERO
2. [MODEL] > [INPUT] > FM SW = INH
[MODEL] > [INPUT] > HLDSW = HOLD
3. [MODEL] > [OUTPUT] > GEAR = FMD and ACT
[MODEL] > [OUTPUT] > FLAP = GEAR and ACT
[MODEL] > [OUTPUT] > AUX2 = AUX2 and ACT
4. [MODEL] > [AMPLI] > +20
5. [FUNCTION] > [REVSW] > ELEV = NORM
[FUNCTION] > [REVSW] > AILE = NORM
[FUNCTION] > [REVSW] > THRO = NORM
[FUNCTION] > [REVSW] > RUDD = NORM
[FUNCTION] > [REVSW] > GEAR = NORM
[FUNCTION] > [REVSW] > FLAP = NORM
[FUNCTION] > [REVSW] > AUX2 = NORM
6. [FUNCTION] > [TRVAD] > ELEV = U100% / D100%
[FUNCTION] > [TRVAD] > AILE = L100% / R100%
[FUNCTION] > [TRVAD] > THRO = H100% / L100%
[FUNCTION] > [TRVAD] > RUDD = L100% / R100%
[FUNCTION] > [TRVAD] > GEAR = +100% / -100%
[FUNCTION] > [TRVAD] > FLAP = U100% / D100%
[FUNCTION] > [TRVAD] > AUX2 = +100% / -100%
7. [FUNCTION] > [SUBTR] > ELEV = 0%
[FUNCTION] > [SUBTR] > AILE = 0%
[FUNCTION] > [SUBTR] > THRO = 0%
[FUNCTION] > [SUBTR] > RUDD = 0%
[FUNCTION] > [SUBTR] > GEAR = 0%
[FUNCTION] > [SUBTR] > FLAP = 0%
[FUNCTION] > [SUBTR] > AUX2 = 0%
8. [FUNCTION] > [SAFE] > ELEV = HOLD
[FUNCTION] > [SAFE] > AILE = HOLD
[FUNCTION] > [SAFE] > THRO = SAFE/L100%
[FUNCTION] > [SAFE] > RUDD = HOLD
[FUNCTION] > [SAFE] > GEAR = HOLD
[FUNCTION] > [SAFE] > FLAP = HOLD
[FUNCTION] > [SAFE] > AUX2 = HOLD