Heli-Max HMXM1015 - Manual (Page 2)

2
HM4050 Switch and Dial Explanation
1
Light Emitting Diode (LED): The LED will glow green anytime
the gyro is powered and operating. (NOTE: If the light is
blinking the gyro is gathering position information and should
not be moved.)
2
Limit Dial (LIMIT): This dial adjusts the rudder
servo travel. 100% = maximum travel. One needs
to adjust the limit dial so the tail pitch slider
does not bottom out on the tail case or the tail
blade hub.
3
Sensing Dial (SENS): This dial is used to change
the delay time between the gyro and the servo.
0% SENS would mean no delay, or the time it takes
for the servo to react to the gyro is at its shortest.
100% SENS would mean the delay time between
the servo and gyro is at its longest. The faster
your servo, the lower the percentage can be. For
instance, digital servos in the .08 sec time range
might use 0 to 10% SENS and analog servos in the
.22sec time range might use 50% SENS. You will, however, need
to adjust the SENS dial to your servo and fl ight needs. NOTE:
With the SENS ADJ switch in local (ON) this dial becomes
your GAIN adjustment (see below).
4
Sens Adjust: This switch is used to change the gyro from
being able to adjust “gain” from the transmitter (Remote) or
adjust the gain from the SENS dial (Local). When the SENS
ADJ switch is in the ON position the SENS dial now acts as
the local gain adjustment.
It’s also important to note that when this switch is in the ON
position (Local), the gyro works in Heading Hold mode only.
5
Direction (DIR): This switch is used to change the gyro’s
compensation direction. NOTE: Incorrectly setting the
direction switch can cause an unsafe situation. As a rule
of thumb, when set correctly the back edge (trailing edge) of
the tail blades should move into the rotation direction of the
tail. It’s also important to note this switch does not change
the servo’s direction regarding your rudder stick input.
6
Digital Servo (DS): This switch is used to select between
digital or analog servos. When using a Digital servo, position
the switch in the ON position. When using an analog servo
position the switch is in the OFF position. Warning: Using
an analog servo with the DS switch in the ON position can
damage your analog servo.