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FUTABA CGY750, Instruction Manual, Page: 51 / 124

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FUTABA CGY750 Instruction Manual Download Page 51

G

YRO 

S

ENSOR 

I

NSTALLATION

Important

: The CGY750 gyro sensor must be 

mounted so that the roll and pitch sensing axis 
are in alignment with the helicopter. Any misalign-
ments over 1/2 of a degree will cause a loss in 
performance.  Please take extra care in this step 
to ensure the optimum flight performance.

TROUBLESHOOTING 

If any issues are noted during flight (such as 
drifting, inconsistent hold or inconsistent control 
rates) then please review the following trouble-
shooting recommendations.

1. Always verify that the tail rotor and swash plate 

mechanisms operate, and that the drive system 

s4HE BOTTOM OF THE #'9 'YRO

Sensor must be perpendicular to 
the main shaft.

s4HE ROLL AXIS MUST BE PARALLEL TO

the tail boom and the pitch axis 
must be perpendicular to the side 
frame.

51

Summary of Contents for CGY750

Page 1: ...1M23N24902 INSTRUCTION MANUAL ...

Page 2: ...TABLE OF CONTENTS 8 9 9 15 21 23 24 0 32 6 34 6 39 7 6 41 6 43 53 7 58 6 0 68 A B 6 C 82 84 86 6 6 88 2 ...

Page 3: ...rly or procedures where the probability of superficial injury or physical damage is high CAUTION Procedures where the possibility of serious injury to the user is small but there is a danger of injury or physical damage if not car ried out properly Prohibited Mandatory 7F 91 7F 99 7 7F 7F 7F 113 D 118 G 121 Gyro Instructions for gyro functions Governor Instructions for governor function Technical ...

Page 4: ...e interference can cause serious operational problems Gyro operating precautions Gyro The CGY750 requires 5 10 seconds to ini tialize when the power is turned on Do not move the helicopter and do not move the tail rotor aileron and elevator sticks during this initialization or the gyro may not initialize properly Once the initialization process has been completed the swash servos and tail servo wi...

Page 5: ...yro to adjust to the sur rounding environmental temperature before flight A large temperature change during use will cause drift and other operational issues The gyro sensor and control box have a elec troconductive coating Do not allow any power leads or other wiring to come into contact with these items If you are switching between Normal Mode and AVCS Mode in flight please keep in mind that you ...

Page 6: ... aileron and eleva tor servos Do not drop the CGY750 sensor onto a hard surface or subject the CGY750 sensor to a strong shock as this may damage the sensor Always use the supplied mounting pads or the Futaba replacement mounting pads available from your local hobby dealer Governor operating precautions Governor When the throttle servo is connected to the CGY750 the battery failsafe function withi...

Page 7: ... the governor If you prefer to activate the governor while the model is still on the ground always ensure that you have at least 5 degrees of pitch in the model before activating the governor This is necessary to prevent an unexpected lift off as the governor activates and the head speed increases to the DESIRED 20 0ERIODICALLY CHECK THE 20 SENSOR OUTPUT TO ensure proper governor operation Due to ...

Page 8: ...217 398 7721 Tel 217 398 0007 D H H E s 3YMPTOMS INCLUDING WHEN THE PROBLEM OCCURRED s 3YSTEM 4RANSMITTER 2ECEIVER 3ERVOS AND MODEL numbers s ODEL ODEL NAME s ODEL NUMBERS AND QUANTITY s 9OUR AME DDRESS AND 4ELEPHONE NUMBER I D D E Futaba Service Center 3002 N Apollo Drive Suite 1 Champaign IL 61822 8 ...

Page 9: ...INTRODUCTION 9 FEATURES D F D F F D G H I I H F JB F J H I JC F G70 G 7 0 H D 6 7F D 7F D D J 6 D D 6 D F D D F K D F 7 7 H 0 L I H D I M D ...

Page 10: ...URES 10 UR VHFWLRQ 0 I F J F J F C H C 5XGGHU DZ VHFWLRQ D N HJ D J O I H J O 0 JC I H O 0 I 0 M H H M LOHURQ OHYDWRU UROO SLWFK VHFWLRQ 0 M D H H N D J H H B H H RYHUQRU VHFWLRQ 0 I F D D J O I J O 0 JC I ...

Page 11: ...T W 2 3 s YRO SET SET CONTENTS CGY750 Control Amp Mini Screwdriver Dust Covers x3 X X X X Gyro Sensor Mounting Pads x3 X X X X Governor Sensor Sensor Mounting Hardware Magnet x2 X X R6203SB Receiver X X Extension Cord X X X X X supplied not supplied 11 G D D K D 2WKHU IXQFWLRQ F G70 ...

Page 12: ...CONTENTS R6203SB Receiver CGY750 Control Box Mounting Pads Adjustment Screwdriver Gyro Sensor Dust Cover 12 ...

Page 13: ...CONTENTS Extension Cord Sensor Mounting Bracket Magnets 2 Revolution Sensor 13 ...

Page 14: ...5HYROXWLRQ VHQVRU B P Q HLJKW RQWUROOHU B I P Q UR VHQVRU JCJ I PC Q 5HYROXWLRQ VHQVRU I P Q 2SHUDWLQJ 9ROWDJH CK C K 0 R XUUHQW UDLQ 6HOHFWDEOH 6HUYR UDPH IH JC I I HQWHU 3XOVH LGWK J S I T JC I O I 3UHVHWV 0H H H N RYHUQRU 5HVROXWLRQ I 7 530 FFXUDF U HDG 6SHHG 5DQJH H H 2SHUDWLQJ 7HPSHUDWXUH V V V N V RQWURO 6 VWHP 0 6HQVRU 7 7 QJXODU 9HORFLW 5DQJH W HJ 0 R H H H D 14 ...

Page 15: ...taba S9257 EP Heli Digital Servo FUTM0667 280Hz 1520μS Futaba BLS257 EP Brushless Heli Servo FUTM0527 280Hz 1520μS UTABA 3 IGITAL I 3PEED FUTM0226 Z 3 Futaba BLS251 Brushless Heli Servo FUTM0521 Z 3 REPLACEMENT OPTIONAL ITEMS Futaba PC Interface CIU 2 FUTM0951 Extension 200 mm XTENSION MM Extension 55 mm Extension 80 mm XTENSION MM Mounting Pad 1x22x22 mm 10 15 ...

Page 16: ...LED Display s ISPLAYS MENUS PARAME ters and status information Edit Keys s 5SED WHEN SETTING DATA s 5SE THE INCLUDED PLASTIC AD justment screwdriver to press the buttons 16 1 2 3 4 5 6 7 8 R D H H R D P N Q 7J 7J R FF H J H D ...

Page 17: ...3 53 OUTPUT OF THE receiver with the supplied extension 4 AIL Output s ONNECT THE AILERON SERVO 5 ELE Output s ONNECT THE ELEVATOR SERVO 6 PIT Output s ONNECT THE PITCH SERVO 7 TH Output s ONNECT THE THROTTLE SERVO s ONNECT THE 3 W AND SET THE OPERATION MODE TO YRO 4 2 MODE 7 E2 2nd ELE Output s ONNECT THE SECOND ELEVATOR SERVO Swash mode H4 00 or H4 45 8 RUD Output s ONNECT THE RUDDER SERVO ...

Page 18: ...ECTING THE CGY750 Connection to the receiver servos and sensors L 6 C 6H J C 6 J 6 6 D F 6 6 6 D H H D G P QH 7G7 P7 QH P QH 0 P Q FF 7J P7 JQ 0 D D F D F D D D H F H H F DD D D S Bus channel setting 6 D 18 ...

Page 19: ...H F D 6 D D K H 7 D P A Q 6 D K H D P Q 7 A K D G 7G7 6 D 0 N Using the CGY750 with a electric helicopter DANGER It is necessary to remove the pinion gear from the electric motor or disconnect the mo tor from the ESC before powering the model 19 ...

Page 20: ... up for setup or bench testing Electric motors are extremely powerful and the capable of de livering the power instantly causing injury to yourself others or the surroundings D 7 P 7JQ J 6 7 D D P N Q 7J 7 K 7 7K 7 7 7 D 20 ...

Page 21: ... mance gyro and governor it will be necessary to ensure that the helicopter mechanics are also in optimum operating condition Please use the guidelines below and address all is sues before installing and flying the CGY750 s 4HE 9 MUST BE USED WITH A RIGID TAIL ROTOR DRIVE SYSTEM NY MODERN TORQUE TUBE OR BELT DRIVE SYSTEM SHOULD BE ADEQUATE O NOT AT tempt to fly the CGY750 using a wire driven tail ro...

Page 22: ...mize vibrations in flight Ensure that your motor is running smooth and all vibrations have been addressed before installing and test flying the CGY750 Gyro sensor replacement s ACH 9 GYRO CONTROL BOX IS CALIBRATED specifically for the gyro sensor included Do not attempt to use another CGY750 sensor with the control box as performance will suffer due to being out of calibration The calibration process...

Page 23: ...OPENING SCREEN 23 K D H D I M D I 0 D K M I F ...

Page 24: ...screen 1 Axis indication 2 Gyro operation mode 3 Gyro gain 4 on off switch 5 Yaw rate comp 7 Setting Menus 6 Battery voltage b Aileron gain display c Elevator gain display d Gyro only mode 1 Axis indicator Gyro F GH 7G7 0 2 Gyro operation mode Gyro P Q K PAQ A P Q D ...

Page 25: ...VCS Mode at 100 gain RUD NOR Mode at 100 gain Neutral offset at AVCS mode K D F T T F F H H H D P Q Return servo to center position K D F D I D F A X K X A X K PRRRRRRRRQ D I Read and memorize the current neutral position ...

Page 26: ...HOME SCREEN 26 3 Gyro gain Gyro F F 4 Operating condition Governor P AQ P Q 5 Yaw rate comp Governor D 6 Battery voltage D PG 6 Q D 6 6 7 Setting Menus D F RPM display Governor D H D ...

Page 27: ...HOME SCREEN 27 D F Home screen options PNQ P Q D D Y 6 H F H 7 H G70 H H F H 7 F 1 Maximum RPM Governor PNQ D F P Q P Q D PNQ P Q M 2 Engine runtime Governor PNQ D PNQ ...

Page 28: ...ions default Saver P Q D D F G70 D D P Q F PG Q D 4 Operation mode default Gyro Gov WARNING If the operating mode has been changed then the CGY750 must be reset by powering down and then powering back up P N Q 6 P N Q D P 7JQ P N Q D P FFQ D ...

Page 29: ...HOME SCREEN 29 P 7JQ Z7 P7JQ 1 Roll rate maximum display Gyro 0 F M D 1 Elevator rate maximum display Gyro 0 F D WARNING Display Governor warning display Governor D D D ...

Page 30: ... Sensor error Gyro WARNING The helicopter must remain perfectly still during the initialization process or a Sensor ER sensor calibration error may occur I H K I D D D D Low battery WARNING The Low Batt warning is displayed if the ...

Page 31: ... for more than one second then the Battery Fail Safe function activates and the throttle servo is brought back to idle This is done to warn you that the battery capacity is dangerously low and you must land immediately D D D D 6 L Memory writing indicator WARNING Do not power off the CGY750 when the Memory writing symbol is displayed D Z D D ...

Page 32: ...ngs menus to help with setup tasks Always check the operation of the CGY750 verify that the controls are operating the correct direction and ensure the gyros are correcting in the proper direction for all axis before attempting to fly the model PNQ P Q Y P 0 QH P G QH P7G7 QH P QH P QR P 6 Q 6 PNQ P Q F F F D PNQ P Q F D 6 F H P G 6 Q PNQ P Q H 6 7F R P Q D P N Q D FF ...

Page 33: ... Push DATA key Push MODE key Push MODE key for 1 second Maximum RPM Home screen Engine runtime OLED Setting Operating mode Maximum Roll Rate Maximum elevator rate Basic Expert Gyro RUD Gyro AIL Gyro ELE Swash Governor ...

Page 34: ...RUDDER GYRO BASIC SETTING 34 P 0 Q 6 E Z 7 K A GG A A0 7 D D D I A P 0 Q 6 J P 0 Q 6 X D P 0 Q 6 X 0 H H D ...

Page 35: ...eys to navigate the setting menus 2 Servo type default DG 1520 Select the appropriate setting for the tail rotor servo that you are using Use the data or key to choose from the following servo types OR NALOG DG 760 BLS251 S9256 S9251 DG 1520 BLS254 BLS257 S9254 S9257 Push MODE key ...

Page 36: ... up by the main shaft and rotate the me chanics counter clockwise The CGY750 should compensate by adding clockwise rotation pitch to the tail rotor blades If the CGY750 compen sates by adding counter clockwise rotation pitch to the tail rotor blades then it will be necessary to reverse the Compensation Direction setting by pressing the or data key WARNING 2EAD YOUR SERVO INSTRUCTION SHEET TO DETER...

Page 37: ...is recommended to set the limit in the CGY750 TO FOR BOTH DIRECTIONS AND THEN ADJUST the servo arm length to set the mechanical endpoints After that has been completed use the servo limit parameter to make small adjust ments that could not be made mechanically 6ALUES BETWEEN AND ARE CONSIDERED optimal AVIGATE TO THE 25 YRO ASIC Sv Limit menu and slowly move the rudder stick to the left or to the r...

Page 38: ...mode first and if you determine that the feel is not aggressive enough or if the pirouette RATE IS NOT FAST ENOUGH THEN TRY THE h v mIGHT mode The Sports Flight Mode will satisfy most pilots The flight mode is changed by pushing the data or key 0IROUETTE 2ATE Sports 540 degrees per second DEGREES PER SECOND ...

Page 39: ...r up and roll the helicopter to the right The CGY750 should compensate by adding left cyclic to the swash plate If the CGY750 compensates in the wrong direction then it will be necessary to reverse the Compensation Direction setting by pressing the or data key once Push MODE key WARNING Verify that the CGY750 compensates in the correct direction before flight If the compen sation direction is inco...

Page 40: ...LL always operate in AVCS Mode Use the data or key to select the desired working mode 3 Gyro gain default 100 ranges 0 120 The top line shows the Aileron Gyro Base Gain and the bottom line shows the actual working gain as set within the transmitter If the Aileron Gain Channel is set to INH within the CGY750 S Bus Basic setting menu then the remote transmitter gain adjustment is not available and t...

Page 41: ...opter up and rotate the nose of the helicop ter downward The CGY750 should compensate by adding aft cyclic to the swash plate If the CGY750 compensates in the wrong direction then it will be necessary to reverse the Elevator Compensation Direction setting by pressing the or data key once Push MODE key WARNING Verify that the CGY750 compensates in the correct direction before flight If the compen s...

Page 42: ... AND 6 3 WILL ALWAYS OPERATE IN AVCS Mode Use the data or key to select the desired working mode 3 Gyro gain default 100 ranges 0 120 The top line shows the Elevator Gyro Base Gain and the bottom line shows the actual working gain as set within the transmitter If the elevator Gain Channel is set to INH within the CGY750 S Bus Basic setting menu then the remote transmitter gain adjustment is not av...

Page 43: ... SHOWN REQUEST ing confirmation of the change If the Data Set key is pressed again within one second the new swash plate type is selected and the confirmation will disappear If no confirma tion is made within one second the display will revert back to the prior swash plate type and no change will be made WARNING All of the swash plate parameters are reset when the swash plate type is changed Please p...

Page 44: ... your model The available presets are 450 550 AND OR LARGER The size profiles change many of the options within the CGY750 to tailor the gyro towards a certain helicopter size and the way that it reacts in flight When using this option the CGY750 will be adjusted to provide a consistent feel for various helicopter sizes Please refer to the back of this manual for a complete listing of the helicopt...

Page 45: ...e and even SOME PILOTS LIGHT MODE IS CONSIDERED AVERAGE AND IS GOOD FOR INTERMEDIATE AND pilots who are not very aggressive Flight mode 5 is intended for advanced pilots who like an aggressive feel This is a personal preference option and it is recommended to test fly using flight mode 2 initially Available Flight Mode Presets 1 Least aggressive good for beginners THROUGH PILOTS VERAGE SPORT AND mIG...

Page 46: ...ols If the cyclic controls operate in the wrong direction reverse THE 3WASH 2 FOR THAT FUNCTION WITHIN THE CGY750 6 Aileron servo reverse default Normal This setting is used to set the operational direc tion for the Aileron CCPM servo The easiest way to set up the CGY750 is to observe which direction each servo needs to move when the collective stick is moved towards positive col lective pitch If ...

Page 47: ...ASH 2 for that function within the CGY750 9 2nd Elevator reverse default Normal This setting is used to set the operational di rection for the 2nd Elevator CCPM servo only used for the H4 xx Swash plate types The easiest way to set up the CGY750 is to observe which direction each servo needs to move when the collective stick is moved towards positive collective pitch If the servo is moving the wro...

Page 48: ... has been selected To use this function select the servo you would like to adjust and press the data or key to position the servo as desired 11 Swash AFR rate adjust ment default 50 4HE 3WASH 2 SETTINGS ARE USED TO ADJUST THE direction and amount of throw allowed for each function Think of this as the maximum travel endpoint for each function except you want to set this to the maximum amount of cy...

Page 49: ...thin the CGY750 and the transmitter functions should be left at the default values 4HE 2ATE AND 2ATE FUNCTIONS ARE DE pendent on servo arm length and head geom etry so it will be necessary to use a pitch gauge to make adjustments For the cyclic controls it is recommended to start with 8 degrees of pitch change in any one direction Adjustments to this value can be made after the 1st test flight once...

Page 50: ...GYRO SENSOR INSTALLATION D H P J Q A 7 D H F D F F D H D F K Gyro Sensor s LEVATOR 0ITCH AXIS s 2UDDER 9AW AXIS s ILERON 2OLL axis 50 ...

Page 51: ...flight performance TROUBLESHOOTING If any issues are noted during flight such as drifting inconsistent hold or inconsistent control rates then please review the following trouble shooting recommendations 1 Always verify that the tail rotor and swash plate mechanisms operate and that the drive system s 4HE BOTTOM OF THE 9 YRO Sensor must be perpendicular to the main shaft s 4HE ROLL AXIS MUST BE PAR...

Page 52: ... the airframe This is mainly DUE TO THE SENSING OF ALL AXIS T IS HIGHLY REC ommended to avoid using soft foam pads as this may allow the gyro to bounce around on the roll and pitch axis causing instabilities and possible loss of control during flight All components of the helicopter must be bal anced and operate in a smooth manner The newer gyro sensors are so sensitive and extremely accurate that ...

Page 53: ...SWASH SERVO INSTALLATION AND SETUP D Swash Servo installation 0 D ELE PIT AIL H3 120 ELE PIT AIL H3 140 ELE PIT AIL H3 90 ELE2 ELE PIT AIL H4 00 ELE2 FRONT ELE PIT AIL H4 45 ELE PIT AIL Normal 53 ...

Page 54: ...SWASH SERVO INSTALLATION AND SETUP D A F D F D D F D D H K 0 U D D I P Q X A D H A P Q A D D 7 D H 54 ...

Page 55: ...SWASH SERVO INSTALLATION AND SETUP H P Q H F 0 D D D P Q 6 X G 7G7 G A D H D P Q 7G7 F N D H P Q G H H 55 ...

Page 56: ...SWASH SERVO INSTALLATION AND SETUP A P Q X 6 X G D H D D D D D D D C P Q X 6 X C D D P Q X 6 X 7 C H D D 7 H H K 0 56 ...

Page 57: ...SWASH SERVO INSTALLATION AND SETUP D U D H D D M D D M D D M 57 ...

Page 58: ...l pitch and yaw D F H H G 7G7 P 6 Q X 6 H P AQH P7 AQ P AQ J D D D G 7G7 D D PA Q D H D P K Q 58 WARNING Verify that the gyro compensates in the cor rect direction for all three axis before flight If the compensation direction is incorrect the model will roll flip or pirouette uncontrollably at a very high rate ...

Page 59: ...nts D D P 6 6 Q X A P 6 6 Q X 7 A P K A Q D D J G 7G7 D D PA Q D H D P K Q 59 WARNING Verify that the gyro compensates in the cor rect direction for all three axis before flight If the compensation direction is incorrect the model will roll flip or pirouette uncontrollably at a very high rate ...

Page 60: ...Q D P G 7G7Q 6 X PNQ P Q J D P G 7G7Q 6 PNQ P Q G 7G7 D D PA Q D H D P K Q WARNING Verify that the gyro compensates in the cor rect direction for all three axis before flight If the compensation direction is incorrect the model will roll flip or pirouette uncontrollably at a very high rate 60 ...

Page 61: ...ram your transmitter as follows 7 D K C U K A U K Z K 7 U D 0 U D F M D U F WARNING Do not connect the tail rotor servo to the gyro until the servo type has been selected Operating the servo using the incorrect setting may damage the CGY750 or the servo H I ZRudder Gyro Basic Setting 61 ...

Page 62: ...TAIL ROTOR SERVO INSTALLATION AND SETUP I 7 ZRudder Gyro Basic Set ting Z G 90 D D D D D 13 5mm 62 ...

Page 63: ...TAIL ROTOR SERVO INSTALLATION AND SETUP ZP 0 Q 6 X K G D D K V D D F D I D D H D D D D D D D Z 0 ZGyro Basic Setting exclusively then the rudder gyro setup is now complete 63 ...

Page 64: ...BEFORE FLIGHT CHECKLIST D K I K 7 D F K P K A Q K F D M H M H D H 64 ...

Page 65: ...ound until this resonance or shaking goes away If this issue continues it is recommended to try some rubber skid stops or take off from a softer surface such as grass Vibrations contribute to this ground resonance Verify that everything on your model is balanced correctly M D K G 7G7 When the CGY750 is used with a ESC or BEC and a power switch is not used there is a possibility that the intermitte...

Page 66: ...ADJUSTMENTS DURING THE TEST FLIGHT U A D M J H A K D I R H M K A D D D I R E M K A D D D I M H K H R H Rudder gyro adjustments 0 F U 0 H H 66 ...

Page 67: ...ADJUSTMENTS DURING THE TEST FLIGHT F H 0 H 0 D D L D H D M D J M D M D I H D F M 67 ...

Page 68: ...RECOMMENDED GYRO GAIN SETTINGS Recommended gain settings Size 2ECOMMENDED YRO AIN AIL ELE Gyro 25 YRO 450 550 750 more 68 ...

Page 69: ...USING NORMAL MODE K H K F A D K K D A F D D D A D D L D D L D F L D A K H I D A K A t K tA t K H D I 69 ...

Page 70: ...tart display The editing menus are scrolled by pushing the mode or key 2 Revolution setting range 1000 3000 rpm Setting the main rotor revolution This is calcu lated by engine revolution with the gear ratio of the main shaft H JH D D N F _ J D H D Push MODE key ...

Page 71: ...O IS NOT PROPERLY SET THE SET speed and actual engine speed will be differ ent s 4HE GEAR RATIO SHOULD BE GIVEN IN THE HELI copter instruction manual If the helicopter in struction manual does not give the gear ratio calculate the gear ratio as follows Rotor main gear N1 Engine pinion gear N2 A AJ s ARRY VALUES LESS THAN TO THE NEXT whole number ...

Page 72: ...or on off switch is inhibited the stick switch is automati cally turned on 4 Servo selection default Analog Select the throttle servo type Digital servos of fer the best response The type is changed by pushing data or key When governor is turned on and off by trans mitter throttle stick D D WARNING This parameter must match the type of ser vo you are using Incorrect setting may damage the CGY750 o...

Page 73: ...ating point Set speed Set point or more and 60 of set speed s 4HROTTLE STICK HELD AT THE SET POINT OR more 2EMAINS s 4HROTTLE STICK LOWERED PAST THE SET POINT OR LESS than the slow side OFF 100 0 set point or less OFF region OFF at slow side ...

Page 74: ...he on off direction is changed by pushing the SET key again The FUNCTION IS INHIBITED BY PUSHING THE 23 4 ATA key When governor turned on and off by switch A D Governor can be turned on and off by a switch s 3WITCH SET TO ON POSITION AND ENGINE RUNNING AT OR MORE OF SET SPEED ON s 4 H R O T T L E S T I CK S E T T O M A X I M U M S L O W position 2EMAINS s 3WITCH SET TO OFF POSITION OFF ...

Page 75: ...TURNED TO 3 AFTER SECONDS HAVE PASSED Move the throttle stick to B FS position as de sired Push set key to confirm the setting Push ING 23 4 WILL INHIBIT THE FUNCTION 8 Yaw rate compensation default CW TOP This works the revolution compensation dur ing pirouette Set the mode to match the gyro installing direction either CW TOP CW BOTM CCW TOP CCW BOTM by pushing the Set key 0USHING THE 23 4 KEY INH...

Page 76: ...t then high position guided by the display Push the data or key to memorize Finish is dis played when the setting is completed Error is displayed when the setting position is out of RANGE TOO NARROW FROM HIGH TO IDLE BELOW through When using the CGY750 for the first time or when making changes in the throw of a servo always perform the limit setting operation 10 Limit point testing It tests the lim...

Page 77: ...t tests the output level of the revolution sensor Turn the engine by hand and check the output level The display indicates the current level on left side numbers maximum level on right side numbers The output level needs to be more THAN FOR CORRECT OPERATION ...

Page 78: ...MOUNTING THE MAGNET AND SENSOR 78 D Cooling fan Magnet Embedded in cooling fan Sensor Attached to engine flange through a stay M H Magnet operating side check 6 Magnet Sensor Z ZGovernor Basic Setting ...

Page 79: ...MOUNTING THE MAGNET AND SENSOR 79 0 D 7 D D F 0 F a6 Magnet Cement the magnet to the cooling fan so that the magnet is level with this side of the cooling fan D D H H D D Sensor mounting D 0 ...

Page 80: ...MOUNTING THE MAGNET AND SENSOR 80 D D J M D H Sensor adjustment D U Z ZGovernor Basic Setting 1 2mm Magnet Sensor 2 2 mm 3 7mm 3 7mm Center of sensor is offset Sensor case ...

Page 81: ...MOUNTING THE MAGNET AND SENSOR 81 D U D H D U F J D D H D D ...

Page 82: ...FUSELAGE SETTING PRECAUTIONS 82 Throttle servo linkage precautions H D D 7 K D U D F H F Fuselage vibration countermeasures H H D 7 D D F H D D D D Use of a tuned silencer D D M ...

Page 83: ...FUSELAGE SETTING PRECAUTIONS 83 H M D D ...

Page 84: ... Governor operation H D R E D I Condition of the governor to be on H D F U The following operations do not indicate trouble When engine speed rises above the set speed D Throttle operation speed and ON OFF point F U H A 0 A ...

Page 85: ...GOVERNOR OPERATION 85 Deviation from set speed D I W U F H H D W H D ...

Page 86: ...E SPEED SETTING CHANNEL TRAVEL 0 46 2 IS SET TO OR LESS POINTS AND CANNOT be set s 4HE ENGINE MAXIMUM SPEED RANGE LIMITS THE maximum speed setting s 4EST FLY THE HELICOPTER WITH THE GOVERNOR TURNED OFF AND TACH THE MAIN ROTOR 2 0 WHILE IN HORI ZONAL mIGHT 4HIS IS THE MAXIMUM 2 0 THAT CAN be achieved with the engine and pitch setup that you are using Please set the governor maximum SPEED TO APPROXI...

Page 87: ...vernor to 1750 s 4HE MAXIMUM SPEED CAN BE VERIlED AT THE 8 speed display However this could show some unlocked main rotor condition which is not accu rate Reference 7 D F D J F H J H 7 J UH 7 J Speed Point 3 Point 2 Point 1 Neutral Speed setting channel travel H JH ...

Page 88: ...avigate through the menu Setting ranges common 1 16ch DG1 DG2 INH Push MODE key WARNING Always verify that the S Bus function assign ments match your transmitter function assign ments If any changes are made within the trans mitter function assignments then it will also be necessary to make the changes within the S Bus function assignments as well ...

Page 89: ...nnel number 4 S Bus setting Throttle channel default 3ch Using the data or keys to set the correct channel number 5 S Bus setting Rudder channel default 4ch Using the data or keys to set the correct channel number 6 S Bus setting Pitch chan nel default 6ch Using the data or keys to set the correct channel number 7 S Bus setting AIL gain channel default 9ch Using the data or keys to set the correct...

Page 90: ... to the default settings 10 S Bus setting RPM chan nel default 7ch Using the data or keys to set the correct channel number J channel default 8ch Using the data or keys to set the correct channel number 8 S Bus setting ELE gain channel default 10ch Using the data or keys to set the correct channel number 9 S Bus setting RUD gain channel default 5ch Using the data or keys to set the correct channel...

Page 91: ...DDER GYRO EXPERT SETTING 91 F D D F 6 H PNQ 6 7F F F PNQ D D 1 Start display PNQ P Q 2 Rudder servo neutral setting default 0 uS ranges 140 140 uS PNQ P Q 3 Gyro basic gain default 100 ranges 50 120 D D U ...

Page 92: ...G 92 4 Rudder exponential default 60 Sports AVCS 40 Sports Normal 20 3D AVCS 20 3D Normal ranges 100 100 0 D D 0 7b D 5 Rudder delay mode default Function P Q P Q 6 Control delay In default Sports 12 3D 15 ranges 0 20 G PNQ P Q ...

Page 93: ...UDDER GYRO EXPERT SETTING 93 7 Control delay Out default Sports 10 3D 12 ranges 0 20 D G PNQ P Q 8 Stop delay default 120 ranges 100 400 G D PNQ P Q 9 Gyro working mode default CMT H A K D A K D PNQ P Q ...

Page 94: ...ETTING 94 10 Pirouette speed default 450 deg sec Sports 720 deg sec 3D ranges 100 999 deg sec J 0 U D PNQ P Q 11 Gain change up delay default 12 ranges 1 50 PNQ P Q 12 Gain change down delay default 3 ranges 1 50 0 PNQ P Q ...

Page 95: ...RUDDER GYRO EXPERT SETTING 95 13 Rudder histeresis default 7 uS ranges 0 50 uS PNQ P Q 14 Gain tracking default 0 ranges 20 20 PNQ P Q 15 F F mixing default off F D F D F 0 F ...

Page 96: ... EXPERT SETTING 96 16 F F mixing rate default 0 range 100 100 F PGQ P Q D G F N 17 F F mixing acceleration gain default 0 range 0 200 L H F PNQ P Q PNQ P Q 18 Sensor mode default Moderate X Xc H D D D D c PNQ P Q ...

Page 97: ...RUDDER GYRO EXPERT SETTING 97 19 Neutral compensation default ON H D H I 0 H L PNQ P Q D D 20 Yaw smoother default ON H D F H PNQ P Q D D 21 Stop boosting default Off range Off 200 D PNQ P Q ...

Page 98: ...RUDDER GYRO EXPERT SETTING 98 22 Gyro data reset D PNQ P7F ddQ PNQ D ...

Page 99: ...AILERON GYRO EXPERT SETTING 99 F D D F 6 H PNQ 6 7F F F PNQ D D 1 Start display PNQ P Q 2 Exponential default 40 FLT Mode 3 600 700 ranges 10 100 G 0 D D G 7b D 3 Control delay in ...

Page 100: ...100 default 7 FLT Mode 3 600 700 ranges 0 20 G PNQ P Q 4 Control delay out default 7 FLT Mode 3 600 700 ranges 0 20 D G PNQ P Q 5 Stop delay default 120 ranges 100 400 G D PNQ P Q K default 98 FLT Mode 3 600 700 ranges 0 150 K H H ...

Page 101: ...GYRO EXPERT SETTING 101 D D M 7 Control feeling default 5n ranges 1 10n H D 0 H D 8 Rate Constant default 50 FLT Mode 3 600 700 ranges 0 150 D M 9 Roll rate setting default 100 ranges 50 150 D 10 D gain setting ...

Page 102: ...AILERON GYRO EXPERT SETTING 102 default 200 HeliSize 600 700 ranges 0 250 0 11 Sensor mode default Middle D X Xc H D D N H 12 Data reset D PNQ P7F ddQ PNQ D ...

Page 103: ... EXPERT SETTING 103 F D D F 6 H PNQ 6 7F F F PNQ D D 1 Start display PNQ P Q 2 Exponential default 40 FLT Mode 3 600 700 ranges 100 100 7G7 0 D D 7G7 7b D 3 Control delay in default 10 FLT Mode 3 600 700 ranges 0 20 ...

Page 104: ...O EXPERT SETTING 104 G PNQ P Q 4 Control delay out default 10 FLT Mode 3 600 700 ranges 0 20 D G PNQ P Q 5 Stop delay default 120 ranges 100 400 G D PNQ P Q K default 98 FLT Mode 3 600 700 ranges 0 150 K H H D D M ...

Page 105: ... 105 7 Control feeling default 5 n ranges 1 10n H D 0 H D 8 Rate Constant default 50 FLT Mode 3 600 700 ranges 0 150 D M 9 Roll rate setting default 100 ranges 50 150 D 10 D gain setting default 200 HeliSize 600 700 ranges 0 250 0 ...

Page 106: ...ELEVATOR GYRO EXPERT SETTING 106 11 Sensor mode default Middle D X Xc H D D N H 12 Data reset D PNQ P7F ddQ PNQ D ...

Page 107: ...SWASH EXPERT SETTING 107 F D D F 6 H PNQ 6 7F F F PNQ D D 1 Start display PNQ P Q Q V X Z default 100 ranges 30 150 F D D V X Z default 100 ranges 30 150 F D D ...

Page 108: ...SWASH EXPERT SETTING 108 V X Z Q default 100 ranges 30 150 J F D D D _ ZXV default 100 ranges 30 150 F D K ZX Z default 100 ranges 30 150 F D D ZX Z Q default 100 ranges 30 150 ...

Page 109: ...SWASH EXPERT SETTING 109 J F D D q Z XV default 50 H3 120 100 except H3 120 ranges 30 150 F D z Z X Z default 50 H3 120 100 except H3 120 ranges 30 150 F D Z X Z Q default 100 ranges 30 150 J F D D ...

Page 110: ...Linkage compensation aileron default 0 ranges 0 100 M H 12 Compensation direction of the aileron default plus D 0 N D 13 Linkage compensation elevator default 0 ranges 0 100 H 14 Compensation direction of the elevator default plus ...

Page 111: ... EXPERT SETTING 111 D 0 N D 15 Speed compensation default 50 H3 120 0 except H3 120 ranges 0 100 D 16 Swash rotation default 0 deg ranges 90 90 deg PNQ P Q 17 Pitch zero setting default 1520 uS I I N I I Ze ...

Page 112: ...SWASH EXPERT SETTING 112 18 Pitch low setting default 1940 uS N I Ze 19 Pitch high setting default 1100 uS F F N F I Ze 20 Data reset D PNQ P7F ddQ PNQ D ...

Page 113: ...GOVERNOR EXPERT SETTING 113 F N 6 H 7F N 7F D 6 1 Start display N H N H D D D 2 Governor working mode default Governor G F D N G H 6 Throttle data mode D F ...

Page 114: ...GOVERNOR EXPERT SETTING 114 3 Revolution display mode default Rotor N H 4 Operation response default Middle D N H H H H c 6 5 Governor gain default Moderate 30 Middle 40 Quick 60 ranges 10 100 H D D N H ...

Page 115: ...RNOR EXPERT SETTING 115 6 Throttle data mode default Optimize N H Optimize A Fixed F I Tx Curve F L G H D 7 Revolution change up delay default 8 range 2 20 N H 8 Revolution down delay default 10 range 2 20 ...

Page 116: ...ERNOR EXPERT SETTING 116 N H 9 Start delay default 5 range 2 20 N H 10 Low limit at hovering default 25 range 0 80 D N H 11 Low limit at idle up default 45 ranges 10 80 D N H 12 Battery F S voltage setting ...

Page 117: ...GOVERNOR EXPERT SETTING 117 default 3 8 v ranges 3 5 7 5 v D D D D D D D M D D 0 N s CELLS I D OR I ORMAL V V s CELLS I E ORMAL V V s CELLS I0O ORMAL V V 13 Governor data reset Z7F dd D N N H Z 7F N H D ...

Page 118: ...nt Dlyout 15 12 7 4 2 EXP 60 50 40 30 20 Rate Cst 20 20 20 10 0 D Gain 100 100 100 100 100 ANG Base 360d s 420d s 420d s 480d s 480d s P7 Q Flight Mode 1 2 3 4 5 AVCS Dmp 97 98 98 99 100 Cnt DlyIn 15 12 10 8 5 Cnt Dlyout 15 12 10 8 5 EXP 60 50 40 30 20 Rate Cst 20 20 20 10 0 D Gain 100 100 100 100 100 ANG Base 240d s 300d s 300d s 360d s 360d s ...

Page 119: ... 7 4 2 EXP 60 50 40 30 20 Rate Cst 30 40 50 40 30 D Gain 200 200 200 200 200 ANG Base 240d s 270d s 300d s 300d s 300d s P7 Q Flight Mode 1 2 3 4 5 AVCS Dmp 97 98 98 99 100 Cnt DlyIn 15 12 10 8 5 Cnt Dlyout 15 12 10 8 5 EXP 60 50 40 30 20 Rate Cst 30 40 50 40 30 D Gain 200 200 200 200 200 ANG Base 180d s 210d s 240d s 270d s 270d s ...

Page 120: ... 10 8 5 EXP 60 50 40 30 20 Rate Cst 30 40 80 70 60 D Gain 200 200 200 200 200 ANG Base 210d s 240d s 270d s 270d s 270d s P7 Q Flight Mode 1 2 3 4 5 AVCS Dmp 97 98 98 99 100 Cnt DlyIn 15 12 10 8 5 Cnt Dlyout 15 12 10 8 5 EXP 60 50 40 30 20 Rate Cst 30 40 60 70 60 D Gain 200 200 200 200 200 ANG Base 150d s 180d s 210d s 240d s 240d s ...

Page 121: ...LINKAGE COMPENSATION 121 F F J R H D F D 3LWFK FDOLEUDWLRQ 7KLV VKRXOG EH VHW SULRU WR WKH FRPSHQVDWLRQ SURFHVV I _ 7F H D I I G H D I F H D F I 3LWFK PRYHPHQW FDOLEUDWLRQ D M F M D X GH X7G7 F 7F F ...

Page 122: ...LINKAGE COMPENSATION 122 LOHURQ PRYHPHQW FDOLEUDWLRQ GX F 7F D I D D F G 7F G 7F D I G H D H 0 6 D G F OHYDWRU PRYHPHQW FDOLEUDWLRQ 7G7X H 7G7X G F 7F D I D D ...

Page 123: ...LINKAGE COMPENSATION 123 F 7G7 7F 7G7 7F D I 7G7 H D H 7 0 6 D 7G7 F 7F L D I 6 A E NC J BCJH E NC J BC C D H H H D JBB B H a 54 20 2 4 ...

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