Futaba GY520 - Manual (Page 20)

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