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SN-L+ USER MANUAL

 

 

 

The vibration is large, and most of the vibration points fall outside the warning line, which easily leads to the FC 

can’t calculate the correct attitude 

                           

 

 

CALIBRATE LEVEL

<SENSOR>-<CALI LEVEL>

 

 

Ensure that the aircraft is level and static during horizontal calibration. 

 

Horizontal calibration is required after changing the mounting direction. 

 

If  you  have  not  calibrated  for  a  long  time or  the  temperature  difference  has  changed  too  much,  you  need  to 

recalibrate. 

 

 

 

SENSITIVITY ADJUSTMENT 

 

<

BASE FUNCTION

>-<

AIL BASE GAIN

> -<

ELE BASE GAIN

> -<

RUD BASE GAIN

>

The larger the value, the faster the reaction speed 

and the excessive jitter. 

 

<

 BASE FUNCTION

 >-<

FEED FORWARD GAIN

>:

 

The larger the value, the faster the response joystick will be, and the jitter 

will be exceeded. 

 

Adjustment Steps: 

Step1:

set

 

<FEED FORWARD GAIN>

normally reduce feed forward gain to 45 

Step2:

set  the

 

<

AIL  BASE GAIN

>  -<

ELE BASE GAIN

>  -<

RUD BASE  GAIN

>.

  You  can  fly  by  default,  then  increase  or  decrease  the 

sensitivity according to the state of flight. 

 

PID speed Factor 

PRINCIPLE

:

 the faster the speed, the smaller the rudder surface sensitivity should be.

 

The greater the value, the greater the speed 

involved in PID control. 

EXAMPLE

:

  when  speed  of  the aircraft  is  very  fast,  the  aircraft  begins  to  shake;  then  you  can  increase 

<ADVACE FUNC>-<STAB 

GAIN>-<SPEED PID FACTOR>

value. 

 

Altitude hold gain 

    <

ADVANCE FUNC

>-<

STAB GAIN>-<ALT HOLD GAIN

IN RTH,ALT-HOLD, WAY-POINT mode, if aircraft action like this in the pitch direction: 

 

please decrease alt-hold gain. 

 

 

 

 

8. FLIGHT & CONTROL 

 

AUTO TAKEOFF: 

 

AltHold mode:Push the throttle to enough power and the aircraft will automatically climb to a height of 20m. 

 

RTH mode:   

Way1: push throttle channel away from the zero position, give plain a speed until motor start. 

Way2: push throttle channel away from the zero position, shake the aircraft, until motor start. Aircraft will auto climb at 30m. 

Summary of Contents for SN-L Plus

Page 1: ...SN L USER MANUAL 1 SN L 司南飞控 FixedWingFLightController Pixel OSD Verv2 2 FW 3 2 LeFeiRC 2020 4 20 ...

Page 2: ...details and deeply understand that the flight is risky It is impossible to be completely reliable on the equipment and any electronic products on the aircraft You should use the Sinan SN_L fixed wing flight control to evaluate the product and use the system according to relevant regulations The system provider does not use the product for any use Responsible for direct or indirect losses and conse...

Page 3: ...NECTOR AIL AIL servo ELE ELE servo THR ESC signal RUD RUD servo AS AUX1 Airspeed connector AUX1 AUX2 AUX2 PPM AUX3 PPM connector AUX3 SBUS SBUS VTX Video transmitter CAM camera GPS GPS upgrade FW tune parameters HOW TO CONNECT DIGITAL VIDEO TRANSMITTER GCS ver1 5 0 If you do not use OSD function please close it by SN_GCS Set telemetry port as DJI by OSD MISC or SN_GCS GREEN LED RC FLASH Lose contr...

Page 4: ...TH mode RTH SAFE ALTITUDE refers to the height that the aircraft needs to maintain when returning home for example The aircraft begins to return home at an altitude of 2000 meters At this time when the RTH SAFE ALTITUDE is set to 500m the aircraft will slowly descend to 500 meters and then return home If the RTH SAFE ALTITUDE is less than 500 meters the aircraft will climb to a height of 500 meter...

Page 5: ...fence limit GEOFENCE ALTITUDE If the aircraft exceeds this altitude the altitude will be forcibly lowered 0 means to close the altitude limit 3 SWITCH FLGHT MODE HOW TO SET FLIGHT MODE Set by SN_GCS The stroke range covers the position of the switch Do not repeat the stroke range of different modes Only one mode is allowed to be in the valid range at a time Set by OSD Example Position Mode switch ...

Page 6: ...ection HOW TO CONNECT SERVO Interface Type AIL ELE THR RUD Wing SERVO 1 SERVO 2 THR T tail AIL SERVO ELE SERVO THR RUD SERVO V tail AIL SERVO ELE SERVO1 THR ELE SERVO2 How to configure the throttle differential Just configure one of the AUX ports such as AUX1 as the THR function the flight control will differentially control the throttle channel and the AUX1 channel Note that the differential cont...

Page 7: ...NTROLLER Set RC channel travel range Please set range at OSD or SN_GCS Enter OSD menu REMOTE CHANNEL MAX select and pull throttle stick to max position hold throttle and exit CHANNEL MID select and exit CHANNEL MIN select and pull throttle stick to min position hold and exit Learn RC Why should learn RC To let FC learn channel direction and channel type AETR or TAER STEP1 power on FC STEP2 pull RU...

Page 8: ...be displayed Quick switch flight mode to cancel summary window How to enter OSD menu Quick switch CH5 Cant enter osd menu when fliying How to select menu enter the OSD menu item AIL channel right Exit OSD menu AIL channel left Move the cursor ELE channel up or down 7 PRE FLIGHT CHECKLIST Unlock throttle Make sure you have set MIN CHANNEL VALUE GPS Satellites fixed CHECK ACCEL HEALTH OSD SCOPE HEAL...

Page 9: ... forward gain to 45 Step2 set the AIL BASE GAIN ELE BASE GAIN RUD BASE GAIN You can fly by default then increase or decrease the sensitivity according to the state of flight PID speed Factor PRINCIPLE the faster the speed the smaller the rudder surface sensitivity should be The greater the value the greater the speed involved in PID control EXAMPLE when speed of the aircraft is very fast the aircr...

Page 10: ...g the wind from flying in the head causing the ground speed to be too small please set MINIMUM GROUND SPEED 9 FIRMWARE UPGRADE Get firmware and upgrade software www lefeirc com or connect lefeirc 163 com connect upgrade tool to computer and install server if need Connect to right COM port Click open button and load firmware do not power FC Click write button power on FC Wait until progress 100 com...

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