Futaba G501 Manual de usuario descargar pdf

formance. To obtain full performance from this rate gyro and

also for safety, please read this manual before use. After read-

ing this manual, please retain it for future use. Also read the

instruction manual supplied with the digital proportional radio

control set, model kit, and engine.

NOTE:

The FP-G501 should be

used

with the FP-S9203

to obtain maxima performance. If used with another servo,

the FP-G501 may not operate satisfactorily, or yield maxi-

mum performance.

CONTENTS

1.FEATURES

2. SET CONTENTS

3. MOUNTING AND CONNECTIONS

4. SENSITIVITY ADJUSTMENT

5. ADJUSTMENT PROCEDURE

6. USAGE PRECAUTIONS

7. RATINGS

8. REPAIR SERVICE

D60510

Thank you for buying a Futaba FP-G501 piezoelectric rate

gyro.

The FP-G501 is used with model helicopters and fixed wing

aircraft when wanting to suppress changes in the aircraft's atti-

tude by changes in air currents, engine torque, etc.

The FP-G501 features a very fast response speed and high

gyro sensitivity made possible by using a piezoelectric ceramic

element as the angle sensor. In the past a rotating motion was

used which resulted in a wide dynamic range that allowed con-

stant control of the rotating speed which was much slower per-

IMPORTANT:

For safe use, read the items indicated

by the

following cau-

tion mark especially carefully.

I ;Caution mark

"All, or part. of this manual may not be reproduced without prior permission.

"The contents of this manual are subject to change without prior notice

"This manual has been carefully written, but if you find anything that you do not

understand or that is incorrect, please contact Futaba.

"Futaba is not responsible for use of this gyro by the user.

"Futaba" is a registered trade mark.

• Minimizes changes in an aircraft's attitude by wind, etc.

The especially high frequency response of the piezoelectric

gyro allows an increase in gyro sensitivity. The original ability of

a gyro to suppress changes in an aircraft's attitude due to wind

and engine torque changes and other unexpected phenomena

has been increased substantially.

• Angular acceleration commands used.

To take advantage of the wide dynamic range of the piezoelec-

tric gyro, angular acceleration commands are used. The trans-

mitter stick operating angle becomes the aircraft command for

angular acceleration and the aircraft rotating speed is propor-

tional to the stick operating angle that is obtained while main-

taining stabilization performance. This is the greatest merit of

the piezoelectric rate gyro over conventional gyros. Fixed rota-

tion of the aircraft can be commanded by the transmitter stick

operating angle.

• Piezoelectric gyro drift cancellation.

Deviation of the gyro from the direction to be maintained (neu-

tral) is called drift. When the power is turned on, the FP-G501

senses this drift and automatically compensates it during gyro

operation. Therefore, do not move the aircraft for four to five

seconds after turning on the power.

• FP-S9203 high response servo.

To take advantage of the excellent response of the FP-G501

and to extract the ultimate performance of the piezoelectric

gyro, a FP-S9203 coreless servo has been designed for this

purpose.

• Sensor vibrationproofing.

A special suspension is built into the gyro to vibration-proof the

sensor element itself. The sensor is protected against un-

wanted vibrations around the sensor shaft while maintaining

high response.

• Simple sensitivity adjustment.

High side and low side sensitivity can be easily adjusted from 0

to 100% each by means of control box trimmers.

The sensitivity can also be adjusted from the transmitter.

(Terminology)

Piezoelectric gyro

Whereas the conventional gyro uses a rotating body to sense

angular acceleration, the piezoelectric gyro uses a piezoelectric

ceramic element. When rotation angular acceleration is applied

while the piezoelectric ceramic element is vibrating, force propor-

tional to the rotation angular acceleration is generated in the di-

rection perpendicular to the direction of vibration. The piezoelec-

tric element is flexed by this force and the angularacceleration is

sensed by extracting the change of this vibration as an electric

signal. The gyro is called a piezoelectric gyro because of this

principle. An amplifier processes the sensed signal, together with

the control signal from the transmitter, and controls the servo.

Gyro

Servo

Accessories

Single set

FP-G501

Small screwdriver (for adjustment)

Double-sided tape (for gyro mounting)

Set w/servo

FP-S9203

-1-

1 2 3 4

Indice de contenidos

Pagina 1 - I ;Caution mark

formance. To obtain full performance from this rate gyro andalso for safety, please read this manual before use. After read-ing this manual, please re

Pagina 2

Mounting precautionsThe amount of improvement of gyro performancehas a considerable effect on the fuselage vibrationlevel or the size, type, linkage m

Pagina 3 - rate and sensitivity

There are two methods of adjusting the sensitivity.(1) adjustment at the gyro (2) adjustment from the transmitter(1)Adjustment at the gyroThe sensitiv

Pagina 4 - (Operating precautions)

Adjustment during flight•Precautions before fliahtSince the piezoelectric gyro uses a angular ac-celeration command control system, the rudderhas an e

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Futaba G501 Manual de usuario

Busca en linea o descarga Manual de usuario para Instrumentos de medición Futaba G501. Futaba G501 User Manual Manual de usuario

Indice de contenidos

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