Spin pro Series - Page 25

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By means of the push-buttons L-R we set the speed of balancing rpm deviations.
The smaller the number, the faster are the interventions. We always proceed from
the higher number. If a certain limit becomes exceeded the controller starts to
operate unstable (analogy with an overgyrated Model helicopter)
Setting by (L-R) of the min. required rotor rpm.
We recommend to set the value to 1000 – 1500 rpm
Autorotation
Autorot. Accel.
-allows or forbids the motor start-up mode in conformity with autorotation. In
case of allowed autorotation the deflection for the motor stop command is splitted
into two parts. Start-up of the motor with autorotation, whereas the fast motor
start-up is carried out on the base of autorotation or motor start-up in conformity
with global acceleration. If at the moment of motor switching-off the deflection
will be bigger than the autorotation decision level, the controller will during start-
up follow the acceleration set-up of the autorotation set-up. If the deflection will
be smaller than the decision level of autorotation, the motor start-up will follow
the global acceleration set-up.
Example of an autorotation set-up for a helicopter. The global acceleration is set for a
value of 10s (from 0 to 100%), the acceleration from autorotation for a value of 0,5s. Let us
switch-on the receiver now with a deflection corresponding to motor-stop. The motor start-
up will be slow in correspondence to the global acceleration, because the deflection lies below
the decision level. If we carry out autorotation and switch-off the motor with the deflection of
the control element lying above the decision level, the motor will start-up fast when
switched-on again.
Motor Timing
Switching Rate
Acceleration
Control Sensitivity
Set Min. RPM
set-up by the key L-R. Set-up of the motor timing in the range from 0° to 30°. In
correspondence with the motor type we can also implement an automatic
„preignition“ for the motor.
Recommended values: 2pole motor...0-5°, 4p motor...0-10°, 6p motor..0-20°, 8p
and more...20-30° - necessary in case of the so called reversed motor conception
Motor control modulation frequency within the regulation range. Always use
8kHz. The only exception are the so called iron free motors (Tango, Samba). For
these motors a frequency of 32 kHz must be used.
Speed of motor acceleration. On principle – the larger the propeller, the longer
the acceleration time value must be. For big reversed motors apply an
acceleration time of 2 and more seconds. For model helicopters we recommend
acceleration times of 5 and more seconds.
D
D
D
D
D
D
D
EN
SPIN SPIN
PROPRO
Motor
stop
Motor
start-up
Full
throttle
0,1 ms
Decision
level of
autorotation
Motor
start-up
0,1 ms
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