FUTABA GY701 Manual de usuario
1M23N23906
INSTRUCTION MANUAL
TABLE OF CONTENTS
• Precautions ----------------------------------3
•
Warranty and Repair Service (in U.S.A.)
--8
• Introduction ---------------------------------9
• Features --------------------------------------9
• Contents ----------------------------------- 11
• Specifications ----------------------------- 14
• Recommended Servos ------------------- 15
• Replacement and Optional Items------- 15
•
Connecting the GY701 to your Receiver
16
• LED Indicator Description -------------- 19
• Mechanics Preparation------------------- 20
• Opening Screen--------------------------- 22
• Home Screen------------------------------ 23
• Warning Display-------------------------- 28
• Edit Screen -------------------------------- 30
• Gyro Basic Setting ----------------------- 32
• Gyro Sensor Installation----------------- 34
•
Tail Rotor Servo Installation and Setup
-- 35
• Before Flight Checklist ------------------ 38
• Adjustments During the Test Flight---- 39
• Using Normal Mode --------------------- 41
• Setting the Gain--------------------------- 42
• Governor Basic Setting ------------------ 44
• Mounting the Magnet and Sensor ------ 52
• Fuselage Setting Precautions ----------- 56
• Governor Operation---------------------- 58
• Governor Speed Setting ----------------- 60
• S.BUS Basic Setting --------------------- 62
• Gyro Expert Setting ---------------------- 65
• Governor Expert Setting----------------- 74
2
TABLE OF CONTENTS
Meaning of Special Markings
Pay special attention to safety where indicated
by the following marks:
ｎDANGER - Procedures which may lead to
dangerous conditions and cause death/serious
injury if not carried out properly.
ｎWARNING - Procedures which may lead to a
dangerous condition or cause death or serious
injury to the user if not carried out properly, or
procedures where the probability of superficial
injury or physical damage is high.
ｎCAUTION - 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.
ｌ: Prohibited ｊ: Mandatory
Gyro : Instructions for gyro function
Governor
: Instructions for governor function
Technical updates and additional programming
examples can be found at:
www.futaba-rc.com/faq
3
PRECAUTIONS
PRECAUTIONS
ｎWARNING
Failure to follow these safety precautions may
result in severe injury to yourself and others.
s2EADTHROUGHTHE ENTIREMANUALBEFOREOPERAT-
ing this product.
BEFORE EACH FLIGHT:
ｊAlways check the transmitter and receiver bat-
tery voltage to ensure they have enough remain-
ing capacity to complete the flight.
ｊAlways exit programming mode before at-
tempting to fly the model.
ｊOnly use the GY701 with a 2.4GHz system
such as the Futaba FASST system, or a PCM
system. Use with a FM system is strongly dis-
couraged since interference can cause serious
operational problems.
Gyro operating precautions: Gyro
ｌThe GY701 requires 5-10 seconds to initial-
ize when the power is turned on. Do not move
the helicopter and do not move the tail rotor
stick during this initialization or the gyro may
not initialize properly. Once the initialization
process is complete, the tail rotor servo will
move to the left extent and then to the right
extent. This will occur twice. The indicator
light will change to solid red for AVCS Mode
or solid blue for Normal Mode.
ｊVerify that the gyro is operating correctly.
ｊVerify that the gyro compensates in the correct
direction before flight. If the compensation direc-
tion is incorrect the model will pirouette uncontrol-
lably, at a very high rate.
4
PRECAUTIONS
ｊVerify that the gyro is operating in the desired
mode.
ｊVerify that the gyro mounting pads are in good
condition.
ｊVerify that the gyro wires are not contacting
the frame of the helicopter.
ｊThe servo type parameter within the GY701
must match the type of servo you are using. In-
correct setting may damage the GY701 or the
servo, possibly resulting in a loss of control during
flight.
ｊAlways ensure that there is some slack in the
gyro cables to help maximize performance. Al-
ways use the supplied gyro mounting pads to at-
tach the gyro to the helicopter mechanics. Do not
use a strap that encompasses the GY701 sensor.
This may affect the overall performance of the
gyro.
ｊAlways allow the gyro to adjust to the sur-
rounding environmental temperature before flight.
A large temperature change during use will cause
drift and other operational issues.
ｌThe GY701 sensor uses a high strength alumi-
num die cast case. Do not allow anything to touch
the gyro case as it may cause a short circuit.
ｊIf you are switching between Normal Mode
and AVCS Mode in flight, please keep in mind
that you must have the gyro re-learn the center
position after making a trim change within the
transmitter. To memorize the new center position
simply flip the gain switch on the transmitter three
times between Normal Mode and AVCS Mode
(NormalAVCSNormalAVCS) within one
second. The tail rotor servo will center indicating
that the new center position has been memorized.
5
PRECAUTIONS
ｊWhen operating the gyro in AVCS Mode, all tail
rotor compensation and revolution mixing must be
disabled and any tail rotor offsets for flight modes
must be disabled.
ｊWhen the GY701 is operated in AVCS mode
the tail rotor servo will not center when the stick
is released. This is normal operation for AVCS
mode. The servo may also move to the extent
while the model is being carried out to the flight
line. Before take off, you must center the tail rotor
servo by moving the tail rotor stick full left, then
full right, back to full left and then allow the stick
to center within one second. You can also visually
center the tail rotor pitch slider by using the tail
rotor stick.
ｌDo not drop the GY701 sensor onto a hard
surface or subject the GY701 sensor to a strong
shock as this may damage the sensor.
ｊAlways use the supplied mounting pads or
the Futaba replacement mounting pads available
from your local hobby dealer.
Governor operating precautions:
Governor
ｊAlways set battery fail safe function at the
GY701. Since the GY701, when used, controls
the throttle, the battery fail safe function that is in
a receiver will not be used.
ｊThrottle fail safe function (transmitter setting):
Use the fail safe function for the channel that
turns the governor on and off to set the fail safe
position to the point at which the governor is
turned off. With this setting, when the system en-
ters the fail safe state, the governor will be turned
off and the receiver throttle signal (fail safe posi-
tion preset) will be output directly.
6
PRECAUTIONS
7
ｊWhen using the condition hold function, trans-
mitter’s function), always set the throttle servo
maximum operating point to less than the point
at which the governor is turned on. Depending on
the conditions, this setting will turn on the gover-
nor and prevent the engine from exceeding the
set speed even when condition hold is set.
ｊAt the beginning of flight, keep the governor in
the off state by setting the throttle stick to maxi-
mum slow side.
ｊWhen the model is on the ground, lower the
pitch to the position at which the model does not
try to lift off. Do not take your eyes off the model.
When the governor operates and the rotor speed
increases the lift also increases causing the
model to try lift off , depending on the pitch posi-
tion.
ｊCheck the sensor output not only when install-
ing the sensor but periodically. Since the magnet
rotates at high speed, it is subjected to a large
centrifugal force. Check the magnet output and
mounting state after about every 10 flights.
ｊIf the model begins to shake during operation,
immediately turn off the governor. The carburetor
design, etc. may cause the engine to operate un-
stable. If this occurs, lower the maximum speed
setting to the range over which there is no prob-
lem.
WARRANTY & REPAIR SERVICE (IN U.S.A.)
If any difficulties are encountered while setting
up or operating your GY701, please consult the
instruction manual first. For further assistance you
may also refer to your hobby dealer, or contact the
Futaba Service Center at the web site, fax or tele-
phone number listed below:
www.futaba-rc.com or www.hobbyservices.com
Fax (217)-398-7721, Tel (217) 398-0007
If you are unable to resolve the issue, pack the
system in its original container with a note en-
closed and a thorough, accurate description of the
difficulty. Include the following in your note:
s3YMPTOMSINCLUDINGWHENTHEPROBLEMOCCURRED
s3YSTEM4RANSMITTER2ECEIVER3ERVOSANDMODEL
numbers)
s-ODEL-ODELNAME
s-ODELNUMBERSANDQUANTITY
s9OUR.AME!DDRESSAND4ELEPHONENUMBER
Send the respective items to the authorized Futaba
Service Center Address below:
Futaba Service Center
3002 N Apollo Drive Suite 1
Champaign, IL 61822
8
INTRODUCTION
9
FEATURES
• Combined Gyro and Governor in one box. Indi-
vidual either Gyro or Governor working mode
are supported.
• The fastest operation scheme is utilized both the
Gyro and Governor section.
• Low profile, small size and lighter weight.
•Small size of the combined one box gyro and
governor controller, 44 x 29 x 12mm, 13 g
•Using the 128 x 36 dots graphical white color
OLED (Organic Light Emitting Display), high
brightness and contrast.
• Easy setting divided by Basic and Expert editing
menu. The basic setting is for initial setting and
Expert setting is for precise setting.
•
Firmware can be updated from PC through CIU-2.
•Supporting the S.Bus connection. Only one
wire connection to the receiver can operate the
GY701.
The Futaba©GY701 is combined heading hold
AVCS gyro and head speed governor in one box.
Its cutting-edge MEMS (Micro Electro Mechani-
cal System) sensor design, ultra high-speed pro-
cessing speed and advanced PID control algorithm
put it a quantum leap ahead of all other heading
hold gyros in size, weight and performance. The
GY701 has been optimized to work for model he-
licopter competition.
FEATURES
10
• Gyro section
• Advanced and adaptive PID operation is utilized
• Small and low profile gyro sensor. 2 colors LED are
installed on the top surface. Using the Aluminum
Alloy metal case. 21 x 21 x 8mm, 14.5 g
• Wide operation dynamic ranges up to +/- 1,200
deg/sec.
• 3 kinds of servo type are supported
• 3D and F3C operation mode is selectable
• The Feed forward operation is utilized. Pitch signal
can be added to the gyro operation. (F/F mixing,
only S.BUS connection)
• New operation algorithm achieves the more consis-
tent pirouette and smooth Yaw control .
• Governor section
•Advanced and adaptive PID operation is utilized
•Fastest operation.
•Wider revolution control ranges, 1000 rpm-3000
rpm
•Both digital and analog servo can be selected
•Revolution compensation by Yaw rate is installed
•Governor or Rev. Limit mode selectable
•New operation algorism achieves more faster and
smooth revolution control .
•Back plate sensor can be selected by the option (for
OS-91, OS-55, OS-50)
• Other function
• Maximum revolution memorization
• Engine runtime integration
• OLED power saving
• LED on/off selectable
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2
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