Instruction manual

Telebee Heading Lock
Piezo Gyro
Dimensions: 1.28”L x 1.28”W (1.50” at Base) x 1.10“H - Weight: 24.5 g
(0.69 oz) sensor & 15.5 g (0.44 oz) amp - Power Supply: 4.8 -7.2 Volts -
Current Consumption: 33 ma - Operating Temp: 23° - 130°F.
Heading lock & rate mode selectable - Remote & manual gain settings -
Solid state with no moving parts for nearly unlimited use - Small and
lightweight sensor with amplifier module - Temperature differential
compensated circuitry - Offset drift cancellation during initialization phase -
Compatible with JR, Futaba, Hitec and Airtronics “Z” radio systems.
CN2238
For Helicopter Use
Instruction Manual
Please read instructions
completely before operation.
A quality high speed ball bearing servo is required for use with
the Heading Lock mode. Due to the extremely fast response in
the Heading Lock mode, regular servos will overheat and eventu-
ally fail. The actual torque of the servo is not as important as the
speed which should fall between 0.16 ~ 0.06 seconds per 60
degrees rotation.
The maximum holding power (the actual gain setting that will
dampen the largest input without the tail oscillating) is directly
related to how rigidly the tail assembly is attached to the helicop-
ter. Loose tail support struts, tail boom fixture bolts or slipping tail
drive shaft/belt will all contribute to reducing the holding power on
the tail. A smooth rudder tail linkage is the key factor to check
and maintain to keep a reliable, strong tail for the helicopter.
JR Futaba Hitec Airtronics Z
red to red red to red red to red red to red
black to brown black to black black to black black to black
white to orange white to white white to yellow white to blue
Radio Connector Type
Features:
Specifications:
High Speed Servo Selection:
Helicopter Tail Rotor System:
Supplied Connectors:
Two harnesses are provide to connect the amplifier to the
receiver, these are a direct fit for Futaba.
Solid top surface of
connector to be
bevelled.
Top
Black
Red
White
Top
Receiver
Rudder Servo
(Fast Speed)
Warning, if any radio system is used other than those listed make
sure same polarity is maintained and double check your connec-
tions, otherwise you will
damage the Aerotech
gyro.
Disconnect the rudder pushrod from the servo horn. After
connecting the rudder servo to the gyro and both the Rudder lead
and the Aux/Gear lead to the receiver, switch the gyro on and wait
10 seconds for the gyro to initialize (the rudder servo with twitch
to indicate it is ready). The moment the servo twitches watch the
rudder servo, the servo will stay in one position (rate mode)
or will
start moving in one direction (heading lock mode). If in heading
lock mode, toggle the Gear switch to rate mode for now. It is
completely normal for the servo to move all the way to one side
and stop while in heading lock mode, it is extremely important that
the rudder pushrod is
not connected. The servo will stop based
on the Rudder ATV/EPA setting, currently at 100%. Turn off the
gyro for now. Once more review your radio and ensure that
Revolution Mixing (revo) is inhibited or the Up and Down settings
are set to zero. Reset your sub trims, trim tabs to neutral and
make sure the rudder servo does not move (without gyro con-
nected) when switching flight modes.
Step 1 Turning the Gyro On for the First Time:
JR and Airtronics “z” require the (rx) plugs to have the top corners
bevelled as shown. Using a small flat file or careful scraping with
a knife remove enough material to easily insert into the receiver.
Transmitter Settings:
Rudd Gear/Aux
Servo Reverse N N
Travel* (ATV or H 100% 100%
EPA) L 100% 100%
Revo Mix Up 0%
Down 0%
Sub Trim / Mechanical Trim 0 0
*Settings based on a JR 6 channel radio, note the initial Rudder (ATV or
EPA) is set at 100%, the control ball location (distance from servo center
to the hole on the servo horn) needs to be set such that as the pitch plate
travels through the entire movement range no mechanical linkage binding
occurs. If necessary move the control ball one hole inwards on the horn.
If the red light flashes on the gyro, no signal is being received, turn off.
Turn on the transmitter and turn the gyro back on. Also, if the gyro
needs to be reversed, switch off the gyro, move the reverse switch and
turn the gyro back on.
Red
= Pos +
White
= Signal
Black
= Neg -
1. Each helicopter kit recommends a location for mounting the
gyro sensor, usually close to the main shaft. Keep away from the
engine and exhaust system due to changes in temperature
affecting the gyro. Mount the amplifier in the servo tray along with
the receiver and battery pack. The surface that the sensor will be
mounted need to be prepared with a mild cleaner that will not
degrade the surface that the foam tape with adhere to (rubbing
alcohol is recommended.) Using two pieces of foam tape, double
up and attach to the bottom of the sensor base. Then attach the
sensor with the adjustable pots facing an open direction for
access. Make sure the sensor does not contact the helicopter
frame or other radio components or wiring.
Mounting the gyro sensor:
Rudder Servo In
Rudder Channel
on Rx
Gear/Aux Channel
(Switch) on Rx
Red Lead
Gain
Reverse
Switch
Connect to
Gyro
Mfg. test
port (not
for end
user)