Futaba 10C 2.4GHz - Manual (Page 73)

73
GYA gyro mixing
GYA series gyros:
GYA series gyros are a high performance, compact, and light weight AVCS gyro developed for model airplane. Integrated
sensor and control circuit make it easy to mount.
• GYA350: for airplane aileron, elevator, or rudder.
• GYA351: for airplane ailerons, especially two servos such as when using FLAPERON.
• GYA352: for airplane aileron, elevator, or rudder control. Two of these surfaces (axis) can be controlled by GYA352.
GYA series gyro operation modes:
The GYA gyros have two operations modes: AVCS mode and Normal mode.
• Normal mode: This mode performs general proportional control operation. For instance, it controls the gyro so that
changes are countered when the attitude of the aircraft is changed by cross-wind, etc.
• AVCS mode: This mode performs both proportional and integrated control operation. The difference between Normal
mode and AVCS mode operation is that where as the Normal mode only counters changes in attitude, the AVCS mode
returns to the original controlled variable simultaneously with countering changes in attitude. For example, during
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performed automatically by the gyro.
Adjustability:
• Plug the gyro's sensitivity adjustment to channel 5, 7, or 8 of the receiver.
(selectable)
• Full switch assignability (SWITCH A-H)
• Each rate setting may be set from 0 to NOR100% or AVC100% gain.
NOR : Normal mode gain. AVC : AVCS mode gain
• Larger percentages indicate more gain, or gyro responsiveness.
• MIX-1,2: Two surfaces' sensitivity can be adjusted independently.
Gyro gain adjustment:
• When the servo hunts, the gyro gain is too high. Lower the gain until the hunting stops.
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repeatedly.
Precautions:
• When taking off and landing, always switch to the Normal mode. Taking off and landing in the AVCS mode is dangerous.
• We recommend that you use the rudder control gyro in the Normal mode. In the AVCS mode, rudder operation is
necessary when turning because the weathervane effect is lost. Use the gyro in the Normal mode unless you are an expert
in rudder operation.
• And we recommend that you also set to off (0%) mode for safety as follows.
GOAL of EXAMPLE: STEPS: INPUTS:
Set up a GYA gyro setting. (Ex: MIX-1) Open and activate the GYRO SENSE
function.
for 1 second. (If BASIC, again.)
C to GYRO SENSE.
Activate the function. C to MIX-1. to ON.
Optional: change switch assignment.
Ex: select E. C to SW
to E.
Adjust gyro rates as needed. (Ex:UP
to NOR70%, CNTR to 0% (off), DOWN to
AVC70%
as starting points.)
C to gyro rate
E up. to NOR 70%.
(0%).
E down. to AVC 70%.
Close menu.