Heli-Max HMXM1015 - Manual (Page 2)

that when in heading hold the servo arm will not center
when you release pressure of the rudder stick. This is
normal. To adjust the gain you must do this manually
using the SENS dial located on the top of the gyro.
Adjust the SENS dial to 50%.
Hover the helicopter and look for any tail wag or fade. If
you are a skilled pilot you will want to put the helicopter
in forward fl ight and review the tail’s performance.
Adjust the SENS (gain) dial either higher for more gain
or lower for less.
NOTE: Dialing back the SENS (gain) dial too far will
limit the travel of the servo. The goal is to adjust
the gain so the tail does not wag but holds the
yaw axes in all fl ight directions. It’s also important
to note that if you are using a radio system with
limited programming capabilities, this might be
the best mode for your application.
Using the gyro in “REMOTE”
(SENS ADJ Switch “OFF”)
With the LOCAL switch off , you will enter the GYRO
menu of your transmitter to adjust the gain.
To get an idea of how this works, let’s step through
setting up the gyro using the Futaba 6EX radio system
in our Heli-Max AXE 400.
First make sure your rudder trim setting is centered
on the transmitter. Leave it at center; you do not want
to make any adjustments to the trim with the gyro in
heading hold anytime the helicopter is in use.
Check your electronic EPA (end point adjustment) in
the transmitter.
To start you want those values (rudder stick left and
rudder stick right) at 100%. To do so, with the transmitter
on (the helicopter need not be powered up for this
adjustment), press and hold the Mode/Select buttons
simultaneously. The system will enter the main menu.
Press the Mode button until EPA appears. Press the select
button until you bring up channel 4. Move the rudder
stick left to right to view the end point percentages.
Set the value to 100% using the +/- button if needed.
To Set Up the Remote Gain Percentages
Enter the main menu by pressing and holding the Mode/
Select buttons simultaneously.
Press and hold to scroll to the GYRO menu. If the GYRO
menu is INH (Inhibited) shift the arrow key positive +
and hold until the GYRO menu says ON.
Press the select button; here you will see a number
percentage with a small arrow to the left. NOTE: Switch
H is the GYRO switch on the 6EX (CH: 5). Flipping this
switch will cause a small arrow to change from up to
down based on the position of the switch. You will also
see a plus or negative symbol to the right of the small
arrow. You will use the +/- button located to the right
of the screen to change the gain value.
If you set both values to a positive percentage, switch
up and switch down, you can obtain two heading hold
gain values in the same fl ight program; for instance, one
value for hover (typically a higher gain percentage) and
one value for forward fl ight or 3D (typically less gain).
Again, it’s important to note that in Heading Hold the
servo arm will not center when you release pressure off
the rudder stick. We fi nd this to be the most common
gain setup. That being said, 55% to 60% gain is a good
starting point.
If you have both percentages at a negative value the
gyro will operate in “normal” mode and also provide
you with two possible “normal” fi ght gain conditions.
This is the least common gain setup.
If you choose, you can have the heading hold switch
position (up) and a normal switch position (down), with
diff erent values at the same time – a combination of
the two gyro gain setups. Most call this style of set up
a “trim setup”; one can easily toggle from normal to
heading hold to review the installation and setup of
the rudder servo.
Warranty Service
Heli-Max® will warrant your Gyro for 90 days after the
purchase from defects in materials or workmanship
of original manufacture. Heli-Max, at their option, will
repair or replace at no charge, the incorrectly made part.
This warranty does not cover damage caused by crash,
abuse, misuse, alteration or accident. To return your
Gyro for service you need to provide proof of purchase,
your store receipt or product invoice will suffi ce. IN NO
EVENT SHALL THE PURCHASER BE ENTITLED TO ANY
INCIDENTAL, SPECIAL, INDIRECT OR CONSEQUENTIAL
DAMAGES, WHETHER RESULTING FROM THE USE,
MISUSE OR INABILITY TO USE THE PRODUCT OR FROM
DEFECTS IN THE PRODUCT. This warranty gives you
specifi c legal rights and you may also have other rights,
which vary from state to state.
Hobby Services
3002 N. Apollo Drive, Suite 1
Champaign, Illinois 61822
Attn: Service Department
Phone: (217) 398-0007
9:00 am - 5:00 pm Central Time M-F
E-mail: [email protected]
Outside USA and Canada, contact local importer for
warranty information.