mglavin
Posts: 5203
Joined: 11/29/2001
From: Elverta,
CA, USA
Status: offline
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quote:
AHHH, heres our miscommunication. You can't set low/high or on/off individually! There's one number only for end points across both switch settings and the dual rate changes this by a percentage (0-125) when the switch is UP or ON. That's it, one EPA and one D/R percentage of that EPA setting.
The problem is then that you can't have high rates be more than 25% higher than low rates which is pretty useless for a 3D model.
If I understand what your describing, your setting EPA for LOW rate and then turning D/R to 125% of the EPA-L/R setting and realizing a 25% increase. If this is the case this does seem to be a limiting factor and undesirable. Additionally it seems backwards to me.
I included the directions for the Flash 5X system below pertaining to the EPA and D/R. Are you programing as described below?
I have the Eclipse TX, I use it for Foamies and such and am not completely familiar with all it's nuances, BUT will look into your specific questions.
End Point Adjustment
The End Point Adjustment (EPA) function allows you to determine the amount of travel, or movement; a servo will have from both sides of the center position. This will ensure that you do not over rotate the servo, risking damage to the control linkage or to the servo itself. It also allows you to set up control surfaces that are mild (decreased servo travel) for the novice pilot, or to setup extremely sensitive control surfaces for the expert pilot by extending the servo travel range. Adjustment of any one channel can be adjusted from 0% (no servo movement) to 125% of normal servo travel. Normal servo travel is considered to be 30 degrees each side of center for a total servo range of 60 degrees. The factory default setting for each of the available EPA s is 100% of normal servo travel. You may program up to 125% of normal servo travel under EPA. To enter into the EPA function from the normal power ON mode of the transmitter, simply follow the procedure below:
1. Depress both the UP and DN/TIMER keys simultaneously.
2. The LCD display should change to the MAIN EDIT MODE menu and you should see the EPA function on the screen.
3. Use the Channel 4 trim key to change channel selection.
4. Use the Channel 1 key to increase or decrease the value of your End Point.
5. To exit this menu at any time, depress both the UP and DN/TIMER keys simultaneously once again.
The LCD screen should display the EPA function screen, as well as all 5-channel numbers. Channel 1 should be flashing on the screen and this tells you that you are ready to adjust the Aileron (channel 1) end points. Now, turn ON your receiver with servos connected so that you can watch the effect of your adjustment. To decrease or increase the travel of the aileron servo, move the aileron control stick to the right and hold it there. You may adjust the travel by depressing Channel 1 trim key, either right to increase the travel, or left to decrease the travel. Do this now, and watch as the display value shown on the transmitter increases in value and the servo begins to move a longer distance from center. By decreasing the value shown, the servo should decrease the travel distance from center. To select another channel to adjust, depress the Channel 4(Rudder) trim key left or right and the display will show which channel you have selected for adjustment by flashing that channel number on the display. Note that each channel is adjusted using the Channel 1 trim key to change the value, but you need to move the control stick corresponding to the control you are adjusting. For example, to adjust the elevator, you will need to move the elevator stick to observe the changes being made All controls on the System X may be adjusted in the EPA function. If you use a specialized retract servo, you may not be able to adjust the end points, as this will be controlled by the servo itself, (retract servos are not normally a proportional servo). However, standard servos will respond to the EPA adjustment. For owners of the Flash 4 System X, Channel 5 will show up on the LCD screen, but will not have any effect, as the Flash 4 System X does not have a Channel 5 key. Now that you have programmed all of your end points, you may return to the operational mode for flying by depressing both the UP and DN/TIMER keys simultaneously. Or, you may move on to the next programming function, known as Exponential Stick Rates.
Dual Rate Adjustment
Dual rates allow the pilot two completely different travel rates of servos travel for greater control versatility of the aircraft. By programming a second set of servo travel values, (from 0% to 125% of normal servo movement), you can increase or decrease the aircraft response when moving the sticks, simply by flipping the dual rate switches. The use of dual rates is especially helpful when becoming accustomed to flying a highly responsive acrobatic aircraft. By programming your second set of servo travel volumes at a rate considerably lower than normal, you can get the feel for the aircraft at low rates, set the trims and make other minor adjustments, and then flip to high rates to derive the most from the aircraft. With a little experimentation, you will find the dual rate feature very useful as your flying skills improvent.
The Flash 5 System X comes equipped with two dual rate switches. The aileron dual rate activation switch SW # 4 is located in the upper right hand corner of the transmitter face, and the elevator dual rate activation switch SW # 1 is located in the upper left corner of the transmitter face. These are the two channels available for dual rate controls on this radio system.
To program the Dual Rates beginning from the Operational Mode, follow the procedure below:
1. Depress both the UP and DN/TIMER keys simultaneously.
2. The LCD display should change to the MAIN EDIT MODE menu.
3. Press the UP key to scroll to the D/R function screen.
4. Use the Channel 4 trim key to select the desired channel.
5. Use the Channel 1 trim key to increase or decrease the value of Dual Rates.
6. To exit this menu at any time, depress both the UP and DN/TIMER keys simultaneously once again.
When you have accessed the Dual Rate function, the screen will show D/R at the far left with channels 1 and 2 at the top of the screen. At this time, channel 1 should be blinking, indicating this channel is ready for dual rate programming, and a value of 100% is shown in the middle of the screen. This is the factory default value and means there is no change in servo response rates when the dual rate switch is activated.
To select either of the two channels available for programming, use the channel 4 trim key and the other channel indicator will begin flashing. Next using the channel 1 trim, increase (up to 125%) or decrease, as low as 0% (no movement at all) the servo movement. Flip the appropriate switch up (see below) to observe the servos decreased (or increased) movement when programming this feature. By toggling back and forth you can see the results of your programming on the servo movement.
MODE FUNCTION SWITCH & POSITION
ACRO and GLIDACRO MODE Elevator SW # 1 full UP
Aileron SW # 4 full UP
GLID MODE Elevator and Ailerons SW # 4 full UP
One note of caution should be mentioned. It is possible to program 0% servo travel while in this program. To maintain a suitable safety margin, it is advisable that you not program anything less than 30% total servo travels.
< Message edited by mglavin -- 7/30/2004 7:56:31 PM >
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Michael Glavin
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Flash 5X and expo/dual rates programming - 
RE: Flash 5X and expo/dual rates programming - 
