Logictech LTG-2100T User manual

▶ Operating Voltage : 4.5 ~ 6v
▶ Power Consumption : 20 mA
▶ Input Signal : 2 Channels(Rudder, Gain)
▶ Output Signal : 1 Channel(Servo Drive)
▶ Gain Control : Remote control by transmitter
▶ Compatibility Mode : Logictech,Futaba,JR system
▶ Data Setting Method : Button input and Stick operation
▶ Data Display Method : 8 Bit LED Display
▶ Dimension : 22(W)mm x 22(H)mm x 11(D)mm
▶ Weight : 10g
◈ We thank you for purchasing Logictech's product,Gyro LTG-2100T for EP
model Helicopter.
◈ Please read this manual carefully to the end in order for you to use
the product safely and for the best performance.
▶ Please be sure to use enclosed dedicated Tape when installing.
▶ Servo control is stopped in SETUP MODE. Please don't flying.
▶ Please refrain using in severe temperature condition.
(recommended temperature for using: -5℃ ~ 35℃)
▶ Recommend to use PCM type transmitter & receiver which has high
stability against a noise.
▶ Beginners should ask a help from where you can buy or expert.
▶ Please do not disassemble and remodel the product.
▶ Please stop the flight right away when you feel any malfunctions of
this product.
▶ Please use just defined voltage.
CAUTIONS
SPECIFICATIONS
▶ High performance Smart Tail-Lock Gyro for EP model Helicopter which
succeed to the capability of LTG-6100T.
▶ Compensate the drift phenomenon of the tail which is influenced by
changing temperature.
▶ Automatic scan for Transmitter & Receiver types.(Logictech,Futaba,JR)
▶ Support dedicated Servo, standard Digital Servo and Analog Servo.
▶ Possible to set Servo Limit independently.(right and left)
▶ Remote controlled GAIN by Transmitter.
▶ Self diagnosis function.
▶ Ultralight design.
FEATURES
<NAME OF EACH PART >
▶ This function is to memory by Auto-recognizing of Receiver Type for exact control characteristic.
▶ After recognition, it displays the receiver types which is in No.1-3 LED.(No.1: LOGICTECH, No.2:FUTABA, No.3: JR)
STEP 1. SELECTION RECEIVER TYPE
Reset all Trims which related
in RUDD channel as zero
▶ This function is to choose the kinds of Rudd Servos.(separate connector of servo before Setup)
▶ LED #1: D E D I C A T E D S E R V O LED #2: S T A N D A R D D I G I T A L LED #3: S T A N D A R D A N A L O G
STEP 2. SELECTION SERVO TYPE
LOGICTECH
L
LT TG G- -2 21 10 00 0T THigh performance GYRO for EP model helicopter
※ Servo Control output
Pull Stick to the end of the left
and turn on the power of Gyro.
Then wait for few second.
After flashing LED 1~3 orderly and then
be off all, Turn back the RUDD stick to
the neutral quickly and wait.
After auto scanning,
result is indicated to
one of the LED 1~3.
① Please be sure united to Tape size and bottom size of GYRO.
② Please install the Gyro where is far distance from the electric
devices like motor.
③ Be sure to use just enclosed dedicated Tape.
④ Please do not allow to be touched on the body of Gyro from
Servo Wire or other things.
⑤ Please do not change the shape and the size of Tape.
▷ Press MENU button and select SERVO SPEED.
▷ After holding RUDD stick to the right or the left, press button and select Servo Type.
▷ Connect the servo connector separated.
① Operating Mode display LED (On: Tail-Lock, Off: Normal)
② Menu selection button (also used as Data input purpose)
③ Menu display LED for currently selecting.
④ GAIN display LED (display data in SETUP MODE)
※ Rudd Signal input
※ Gain Signal input
▶ Press the MENU BUTTON for 3 seconds over,then the SETUP MODE is enabled.
Whenever press button, Menu is moved to SERVO SPEED -> ROTATE RATE -> DIRECTION -> SERVO LIMIT.
▶ When Menu button is pressed in neutral status of RUDD Stick, Menu is moved to the next one. But in the status of stick holding to
right or left side, button pressing makes changing data related with current menu.
(Increasing or decreasing data is followed with stick holding direction)
SETUP PROCEDURE ( Please follow STEP 1 ~7 )
①
②
④
③
< INSTALLATION >
GYRO MOUNT on a heli
TAPE
(RUDD STICK)
(RUDD Channel)

▶ Temporarily set Gain value of Transmitter to NORMAL 30% for adjusting the mechanical neutral.
▶ Gain data selected in Transmitter and real Gain of the gyro recognized has the relation as the below
figure.
STEP 3. GAIN SETTING
▶ This function is to define stick control character and motion speed of Servo.
Break character of the Helicopter and stick response speed could be coordinated.
▶ Fast Servo should be used high value and slow Servo should be used low value.
▶ LED #1: The most slow response LED #8: The most fast response
STEP 7. ROTATE RATE SETTING
▶ Adjust mechanical neutral so as not to be occurred Tail Drift in flying.
▶ Adjust the Linkage length repeatedly with hovering until the Tail has stopping almost in one point.
▶ If Helicopter rotate very quickly to the one direction taking off, Try STEP 5 first.
STEP 4. ADJUST MECHANICAL CENTER
▷ When powered on, LTG-2100T indicates the checked errors on the LED through self-diagnosis function.
LED #1 flickering : error of Sensor
LED #2 flickering : non-input RUDD signal or abnormal input.
LED #3 flickering : non-input GAIN signal or abnormal input.
◈ SELF-DIAGNOSIS FUNCTION
▷ Pirouette speed come to Max. in ATV(Traval Adjust) 140%, DUAL RATE 100%.
For the slow speed, lower the DUAL RATE value.(Don't change ATV value)
▷ When stopping after Pirouette, if tail is not stopped at a point or occurrence of bouncing, tune the
ROTATE RATE value appropriately.
▷ By the mechanical tolerance of the Transmitter stick, there is some case which can't be a auto recognizing
of the Receiver type. In this case try again after some increasing or decreasing of RUDD channel minutely.
▷ Helicopter vibration influence much on the Gyro performance.
Try to keep the helicopter condition without vibration.
▷ Be sure not to deliver helicopter vibration to the Gyro body through some other things.
▷ Installation tape should be used only appointed one by Logictech co.,ltd.
And don't change the way of installation and tape itself(size,shape).
▷ If Horn length is used longer In case of slow servo using, you can get the effect of Servo speed
increasing.
▷ If Receiver type selection is wrong, GAIN selected in Transmitter may can be displayed differently or
changed the feeling of stick steering.
◈ Tips
▶ This function is to select Servo control direction.( recommend to be used in need)
▶ LED #1: N O R M A L LED #2 : R E V E R S E
STEP 5. SELECT SERVO DIRECTION
▷ Place To Send
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☞ TEL : [phone] FAX : [phone]
☞ E - mail : [e-mail]
☞ Web : http://www.logictech.co.kr
◈ After Service
NORMAL MODE TAIL LOCK MODE
Real Gain 100% 0% 100%
Tx Gain 0% 50% 100%
▷ If Transmitter Gain is selected as 0%, Gyro recognize it as NORMAL MODE 100%.if Transmitter Gain is
selected as 100%, Gyro recognize it as TAIL LOCK MODE 100% and TL LED is turn on.
(TL LED is turn off in NORMAL MODE)
▷ GAIN is displayed by 8pcs LED.(LED 1: 0%-30%, LED 2 : 31%-40%......LED 8: 91-100%)
TAIL LOCK : ON
NORMAL : OFF
GAIN DISPLAY
▷ Press MENU button and select DIRECTION.
▷ After holding RUDD stick to the left or right side, press the button and change the data.
▶ This function is to define the Servo moving scope for getting enough lift power of Tail Rotor.
▶ Select RUDD channel of Transmitter to ATV(TRAVAL) 140%, DUAL RATE 100%.
STEP 6. SERVO LIMIT SETTING
▷ Press MENU button and select SERVO LIMIT.
▷ Push the stick slowly to the left limit and press button.(memorized the point)
▷ Push the stick slowly to the right limit and press button.(memorized the point)
▷ After finished SETUP MODE, the Real memorized Limit can be checked.
▷ If the Limit is selected too narrowly, It is reset as default value 25%.
▷ Press MENU button and select ROTATE RATE.
▷ Press the button and Change the data after holding stick to the left or the right side.
▷ Try the pirouette during the hovering and check the stop or the speed-up character and decide the
most appropriate value by changing data in case of need.
▷ Install the linkage so as to the Servo and Horn being 90°.
▷ Use the Horn length around 10 ~ 13.5 mm.
▷ If 90 is not made, adjust minutely by using SUB-TRIM of Transmitter.
※ In this case, Gyro power should be supplied again.
▷ When Linkage length need to be adjusted enough, it is better to move
Servo mount.
▷ Linkage should be moved so softly.