Skookum SK360 Скачать руководство пользователя страница 6

©2008 Skookum Robotics, Ltd

11

9

Gyro Setup Using the USB Interface

Step 1:  Connecting

First  install  the  USB  Interface  software  for  your  SK360  gyro.  Unplug  the 

swashplate servos the gyro for now.

Set your radio’s transmitter so Aileron, Elevator, and Pitch (Collective) are 

output  each  on  a  separate  channel  (“Normal”  or  “1  Servo”  swashplate 
mode).

The initial setup will be easier if you use a straight-line pitch curve, and no 

expo or dual rates. Later those features can be set in the transmitter as you 
normally would.

Connect the gyro to the USB interface, and 

set the mode switch on the 

gyro toward the gain dials 

to put it in setup mode. Turn on the heli’s 

power, and start the setup software.

Check that the connection indicator in the upper left is green and says 

Connected

.

Step 2:  Match the Gyro to Your Transmitter

In the 

Offline Setup Values

 area in the lower half of the window, click the 

Swashplate

 tab. Then select the

Swash Type

 that matches your heli’s 

swashplate, and make sure 

Mixing Location

 is set to 

In Gyro

.

Now click the 

Control

 tab.  Center all the trims on your transmitter, and be 

sure the cyclic stick is centered.

Click the 

Send Setup

 button, or press the F1 key to set the changes on the 

gyro. 

You must SEND the setup whenever you want to test changes.

After a few seconds, check 

Inputs from Receiver 

again. The % values for 

Elevator, Aileron, and Pitch should be close to zero. You can trim the 
collective pitch centering on the 

Controls

 tab.

Try moving the elevator stick towards you (nose up), and look at the Pilot 
Control field under Elevator. The number displayed should be close to 
100% and show 

green

. If it is negative, reverse that channel in your radio. 

If it’s too low or reaches 100% much before the stick’s limit, adjust 
endpoints and sub-trims for that channel in your radio.

Repeat for Aileron Pilot Control, but move the stick right (

green

). Then 

repeat for the Pitch input, but move the stick up (

green

).

Step 3: Check the Gyro’s Sense Directions

Now look at the 

Gyro Rates

 fields in the 

Live Data

 area. 

Note: the Rate 

fields only sense movement, not angle.

Pick up the heli and slowly tilt it nose-up. The Gyro Rate for Elevator 
should be positive and show 

green

. If not, click 

Flip Elevator Axis

 on the 

Control tab. If the gyro rate for 

Aileron 

is high instead, click 

Rotate 90 

Degrees

 on the Control tab.

©2008 Skookum Robotics, Ltd

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Repeat for the Aileron (roll) axis, but slowly tilt the heli to the right. The 

Gyro Rate for Aileron should be positive and show 

green

.

WARNING:

 All the control input and sense directions in steps 2 and 3 must be 

correct, otherwise your heli will instantly crash if you try to fly it.

Step 4: Swash Mixing / Servo Setup

Go to the 

Swashplate

 setup tab again, and set the 

Swash Mixing

 values 

(“CCPM and Travel”) just as you would in your transmitter.

Go to the Servos tab, select the frame rate according to servo type, and 

enter the speed of your servos from their specifications.

Make sure the control sticks are centered, and then plug the servos into the 

gyro. Check for good motion and no binding.

NOTE:

 While in setup mode, the gyro will give 100% swash control to the 

transmitter sticks (zero stability gains), to allow for mixing, servo travel, 
and mechanical setup.

Check that the swashplate motion is correct.  

Note:

 the correct blade pitch 

range for elevator or aileron input is about +-10 degrees.

If the servos don’t move in the correct directions, reverse them on the 

Servos

 tab.  If the Aileron or Elevator motion is reversed, change the sign 

of their swash mixing value (ex, + to -). Try to keep swash mixing values 
below 60%. If you need more motion increase the servo travels instead, for 
ex. to all to 125%. This prevents unwanted interaction at max and min 
collective.

Do not 

try to change cyclic throw using the 

Control

 tab.

Adjust the servos for a level swashplate on the 

Servo

 tab.

Step 5:  Ready for Flight

Save your setup to disk

, then go to Section 10 of this manual.

Final Setup Note:  

The expo, dual-rate, and pitch-curve features of your radio can 

be used normally, as long as they do not exceed 100% travel.

Содержание SK360

Страница 1: ...Intro 3 2 Package Contents 3 3 Safety 4 4 Mounting the Gyro 4 5 Helicopter Airframe Setup 5 6 How to Check Cyclic Pitch Phasing 7 7 Connections 9 8 Modes Indicators and Power Up 10 9 Gyro Setup Using...

Страница 2: ...operty Use of this gyro places a flight control computer the gyro unit between the radio receiver and the servos that drive the swash plate If the gyro unit is mistuned or set up incorrectly loss of c...

Страница 3: ...REX you can adapt the flybar mixing arms as travel reduction arms on the rotorhead to reduce the effect of swashplate slop and reduce servo load This will allow higher gains and better performance Som...

Страница 4: ...with aileron centered Measure the pitch of the blade that points over the nose 4 If the mechanical setup is ideal the blade should not change pitch If it does you will need to adjust the phase angle e...

Страница 5: ...and Power Up The two primary modes are Setup mode and Flight mode chosen by the position of the small switch on the gyro s side Towards the gain dials is Setup mode and away from the dials is Flight M...

Страница 6: ...en Step 3 Check the Gyro s Sense Directions Now look at the Gyro Rates fields in the Live Data area Note the Rate fields only sense movement not angle Pick up the heli and slowly tilt it nose up The G...

Страница 7: ...t the swash for a right roll 4 Nose up elevator stick should tilt the swash for nose up 2008 Skookum Robotics Ltd 14 12 Basic Tuning If you have set up your helicopter s mechanics properly and the cyc...

Страница 8: ...een and the gyro s serial number and firmware revision should be displayed Note the servos may be slightly jittery while connected to the USB port due to noise from your computer If the software will...

Страница 9: ...ld slow all the servos evenly to the maximum rate of the centre servo Servo Speed Take this from your servo manufacturer s specifications Units are in seconds per 60 degrees of motion This helps the g...

Страница 10: ...slightly nose heavy 2 Check that your swash is level at min zero and max collective pitch while in Setup mode On the servo tab first adjust the swash to be level at zero pitch using the trims then use...

Страница 11: ...tics Ltd 22 Symptom Problem Solution Random jitter or jumps in roll and pitch Vibration effects on the gyro Make sure it is mounted on good damping tape and doesn t contact the frame Also check for ta...

Страница 12: ...revision number should show up on the top right of the USB interface display 2008 Skookum Robotics Ltd 24 Appendix C Warranty and Technical Support Warranty and Repair Skookum Robotics Ltd warrants t...

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