Futaba GY520 User Manual download pdf (Page 20)

GY520 P

ROGRAMMING

Parameter 3: Servo Limits [3 FLASHES]

Red, 3 Flashes

Blue, 3 Flashes

Limit Testing Mode

Set limit using tail rotor stick.

LED INDICATOR DESCRIPTION

The Servo Limit parameter is used to set the mechanical limits for the

tail rotor servo. To obtain the highest performance it is recommended

to adjust the servo arm length to set the mechanical limits and then

use the servo limits parameter to make small adjustments.

WARNING!

• To prevent damage to the servo always perform limit setup

with the tail rotor linkage disconnected and simply hold the

linkage over the linkage ball to verify settings.

• While in the servo limits parameter the gyro no longer

functions. Always ensure that the gyro is functioning correctly

and it is not in the servo limits parameter before flying

the helicopter.

Setting the servo limits:

Go to the SERVO LIMITS parameter. While in the servo limits

parameter the gyro compensation no longer functions and the tail

rotor servo will always center. This can be used to set the centering

position for the tail rotor linkage and the tail rotor stick can be

moved to verify that the limits are set correctly. While in the servo

limits parameter the tail rotor stick is 150% more effective to

compensate for any tail rotor AFR or D/R adjustments made within

the radio. Please do not be concerned if the tail rotor servo reaches

its limit before the tail rotor stick reaches its physical limit.

Y520 Mnl.indd 20Y520 Mnl.indd 20 4/7/2009 7:55:05 AM4/7/2009 7:55:05 AM

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Futaba GY520 User Manual Page 20