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FS-VK-G4P&VK-R4A

Digital Proportional Radio Control System

12

Notes

: a. The ESC can be run after completing self-inspection (about 3 seconds) if power on, 

otherwise it cannot be operated normally.
         b. If there is no power output and the red light of ESC flashes quickly after power on, 
please check whether the throttle trim of the transmitter is set to the "0" position, the receiver will 
automatically recognize the midpoint of the trim throttle after restarting;
         c. If the rotation direction is not correct during running, exchange the two wires connecting 
motor and ESC.
         d. To make sure everything is ok, please turn on the transmitter first and finally turn on the 
ESC, turn off the ESC first and finally turn off the transmitter.

6.3  Instruction on the binding of the receiver

If you need to bind the receiver again, please refer to [4.3 Binding]

Notes

: (1) Set the transmitter to its binding state first, and then set the receiver to its binding 

state. If the binding is not completed within 10s, the indicator light of the receiver will enter its 

slow flashing state.
        (2) If re-binding is successful, all the settings of the car lights will be restored to their 

default values.

6.4  Protection Function Description

1. Low voltage protection

The low-voltage protection value is 6.3V.

When the ESC detects that the battery voltage reaches the low-voltage protection value for 2 

seconds, the output power of ESC will be halved, that is, the ESC will operate at 50% of the 

output power. The ESC will cut off the output completely after a few seconds, and the red light of 

ESC will blink in cycle. After triggering the low-voltage protection, please replace the battery or 

fully charge the battery before use.

Note

If it is easy to trigger the low voltage protection during use,  it is probably caused by the 

insufficient discharge capacity of the battery. Please replace the battery with a higher discharge 

rate to test.

2.Overheat protection

When the internal temperature of ESC reaches the preset value (110

/230

) of the 

manufacturer and lasts for 2 seconds, the ESC will directly cut off the output, and all car lights 

flash promptly,

Note

If ESC is easy to trigger the overheat protection, it is usually because the configuration is 

unreasonable, that is, the ESC cannot meet the vehicle configuration requirements, please reduce 

the vehicle load or replace the ESC with higher power.

3. Signal loss protection

When the ESC detects that throttle signal is lost for 0.1s, it will automatically cut off the output 

and the red light will flash quickly.

4. Self-check display:

All car lights will be on for 1S when the receiver is powered on.

Summary of Contents for FS-VK-G4A

Page 1: ...FS VK G4P VK R4A Copyright 2021 Flysky Technology co ltd USER MANUAL Digital Proportional Radio Control System...

Page 2: ...sers In order to ensure your safety and the safety of others read this manual carefully before using this product If you encounter any problem during use refer to this manual first If the problem pers...

Page 3: ...witching 9 5 6 Failsafe 9 5 7 Beginner Mode 10 6 VK R4A Receiver Function Instructions 11 6 1 Attentions 11 6 2 Use Guidance 11 6 3 Instruction on the binding of the receiver 12 6 4 Protection Functio...

Page 4: ...y of you and others do not operate in the following places Near any site where other radio control activity may occur Near power lines or communication broadcasting antennas Near people or roads On an...

Page 5: ...FS VK G4P VK R4A Digital Proportional Radio Control System 2 2 Introduction 2 1 Transmitter Overview 2 3 4 5 7 8 9 11 12 13 14 6 1 10...

Page 6: ...R 4 Status indicator green LED G LED 13 Power switch 5 Two colors LED battery power level display Car battery 14 Base 4 AA battery compartment 6 Lanyard hole 15 Three position switch CH3 7 Bind butto...

Page 7: ...CH3 10 Antenna 3 CH4 11 LED 4 Headlight interface 12 Motor interface M 5 Left turn signal light interface 13 Motor interface M 6 Right turn signal light interface 14 Battery cable interface 7 Power c...

Page 8: ...ts Danger Do not expose to excessive heat or liquids Danger Do not drop the battery or expose to strong shocks or vibrations Danger Always store the battery in a cool dry place Danger Do not use the b...

Page 9: ...put the transmitter into binding state first then the receiver 4 1 Power On However if the receiver needs to be replaced or additional receivers bound follow these steps Note Operate with caution in o...

Page 10: ...ely counterclockwise When calibration is completed the R LED will be off Car Battery the D3 red keeps on 3 Trigger calibration Pull the trigger back then forward as far as it will go When calibration...

Page 11: ...is up it indicates reverse and the down indicates normal 5 3 Trims The ST TRIM is the trims for CH1 steering and can be multiplexed as Trims of CH3 and CH4 For multiplexing switching mode see 5 5 Mode...

Page 12: ...M and ST D R buttons for different channels see 5 3 Trims 5 4 D R Function setting Under normal power on quickly press the Bind button twice within 1 Sec to cycle through modes 1 2 3 and 4 The default...

Page 13: ...annel range defaults to 1250 1500 1750us Setup To switch between beginner and normal modes first press and hold the channel 4 button and Turn the handwheel to the bottom counterclockwise then turn on...

Page 14: ...all the time even if it is off It will discharge completely if connect the battery for a long time thus resulting in the failure of the battery or the ESC We are not responsible for any damage caused...

Page 15: ...Low voltage protection The low voltage protection value is 6 3V When the ESC detects that the battery voltage reaches the low voltage protection value for 2 seconds the output power of ESC will be hal...

Page 16: ...flashing state When the CH3 key on the transmitter is located at the leftmost end the headlight is off When the CH3 key is located at the middle position the headlight is on When the CH3 key is locate...

Page 17: ...rature Range 10 60 Humidity Range 20 95 Online Update No Color Black Size 160 193 97mm Weight 220g Certification CE FCC ID N4ZG4P00 7 2 Receiver Specifications VK R4A Product Model VK R4A Applicable m...

Page 18: ...everse 1 The connection sequence between output line of ESC and motor line 2 The throttle direction of radio is wrongly set 1 Exchange the position of two lines of motor 2 Set throttle direction of ra...

Page 19: ...FS VK G4P VK R4A Digital Proportional Radio Control System 16 9 Package Contents Transmitter 1 FS VK G4P Receiver 1 VK R4A...

Page 20: ...llowing two conditions 1 This device may not cause harmful interference 2 This device must accept any interference received including interference that may cause undesired operation Caution The manufa...

Page 21: ...the communal collecting point via private persons is for free The owner of old appliances is responsible to bring the appliances to these collecting points or to similar collection points With this l...

Page 22: ...Copyright 2021 Flysky Technology co ltd www flysky cn com Release date 2021 06 15 FCC ID N4ZG4P00 FCC ID N4ZVKR4A00...

Page 23: ...and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that inte...

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