Changes

Jump to navigation Jump to search
no edit summary
Line 228: Line 228:  
* The receiver power supply does not seem to be sufficient. The voltage during operation dropped in a critical area (<3.5 Volts). Use a stable power supply and make sure that the wiring and plugs are dimensioned big enough and feature low contact resistance. On large helicopters we recommend to use the MICROBEAST PLUS HD or AR7300BX unit with high power input.
 
* The receiver power supply does not seem to be sufficient. The voltage during operation dropped in a critical area (<3.5 Volts). Use a stable power supply and make sure that the wiring and plugs are dimensioned big enough and feature low contact resistance. On large helicopters we recommend to use the MICROBEAST PLUS HD or AR7300BX unit with high power input.
 
* A reset can be triggered due to a transfer of high voltage. Take measures to prevent static discharges.<br />
 
* A reset can be triggered due to a transfer of high voltage. Take measures to prevent static discharges.<br />
 +
<br />
 +
 +
===The helicopter drifts slowly around its vertical axis. The rudder servo creeps to maximum deflection slowly.===
 +
When using Heading Lock mode the system compares the rotation rate of the helicopter with the commanded rotation rate from the stick input all the time. So basically this can have two reasons:<br />
 +
<br />
 +
1) Gyro is measuring a rotation even if there is none. This can happen from hard vibrations disturbing the sensor measurement or also by gyro drift due to high temperature change or a defective sensor. As with other electrical devices make sure to give the system time to acclimatize before powering it up, especially when flying on a cold winter day or during a hot summer.<br />
 +
<br />
 +
2) Stick is commanding a rotation even when it seems to be in center position. Check all your trimmings on the transmitter. They must be 0 in all flight modes. Make sure to keep the sticks centered during power up as the system learns stick center positions each time it performs the init sequence. This is necessary because most often stick potentiometer positions vary slightly, i.e. due to different ambient temperature. This issue can solved by using stick deadband but to keep deadband as low as possible and to increase overall performance MICROBEAST / MICROBEAST PLUS learns stick position directly before flying. However, if you see your sticks do not center properly, i.e. when pushing and releasing the stick softly the servo starts to creep into one direction and only will stop when tapping the stick into the opposite direction, then you can increase the Stick Deadband at Parameter menu point E.<br />
 +
<br />
 +
 +
===When moving the rudder stick in Heading Lock mode the servo does not go back to center positions but stays somewhere.===
 +
This is normal behavior when using the gyro in Heading Lock mode!<br />
 
<br />
 
<br />
   Line 269: Line 281:  
Especially for the '''nitro helicopters''' using the governor functionality of your MICROBEAST PLUS can be very handy as the unit necessary for this is already mounted to your heli. There is no need for an extra device. Just connect a rpm sensor of your choice to the unit and after performing the governor setup procedure you will not have to adjust complicated throttle curves anymore. Just choose the desired head speed you want to fly with and set it up in the transmitter, MICROBEAST PLUS will do the rest including soft start and autorotation bail out feature.<br />
 
Especially for the '''nitro helicopters''' using the governor functionality of your MICROBEAST PLUS can be very handy as the unit necessary for this is already mounted to your heli. There is no need for an extra device. Just connect a rpm sensor of your choice to the unit and after performing the governor setup procedure you will not have to adjust complicated throttle curves anymore. Just choose the desired head speed you want to fly with and set it up in the transmitter, MICROBEAST PLUS will do the rest including soft start and autorotation bail out feature.<br />
 
<br />
 
<br />
Please note the RPM Governor function can only be used in combination with a single line (single-wire) receiver
+
{{QUOTE|Please note the RPM Governor function can only be used in combination with a single line (single-wire) receiver (Spektrum Satellite, Futaba SBus, SRXL, PPM serial-wire, ...). Using a standard receiver is not possible.}}
(Spektrum Satellite, Futaba SBus, SRXL, PPM serial-wire, ...). Using a standard receiver is not possible.<br />
   
<br />
 
<br />
   Line 280: Line 291:  
- Some ESC do not arm when the throttle value in the radio is too close to the motor starting position. When adjusting throttle endpoints at Governor setup menu point B this was intended, so the system does "know" at which point the motor starts and additionally the system can determine the throttle positions of the transmitter. Anyhow if this does not work with your ESC and it won't start there is no other option than increasing the throttle endpoints in the transmitter again (after the positions have been set at Governor menu points B and C!) just until the ESC will initialize. Anyhow MICROBEAST PLUS knows at which point the Motor will start as endpoint have been set before. But note that now the rpm setting will differ from the given table of the MICROBEAST PLUS ProEdition manual, as you stretched the throttle range of the transmitter. So the given percentages may not fit to the desired rpms and the percentage for autorotation bailout mode may change. Use Governor menu point D to check how MICROBEAST interprets your throttle curve values by watching the Status LED color in the different flight phases at menu point D.
 
- Some ESC do not arm when the throttle value in the radio is too close to the motor starting position. When adjusting throttle endpoints at Governor setup menu point B this was intended, so the system does "know" at which point the motor starts and additionally the system can determine the throttle positions of the transmitter. Anyhow if this does not work with your ESC and it won't start there is no other option than increasing the throttle endpoints in the transmitter again (after the positions have been set at Governor menu points B and C!) just until the ESC will initialize. Anyhow MICROBEAST PLUS knows at which point the Motor will start as endpoint have been set before. But note that now the rpm setting will differ from the given table of the MICROBEAST PLUS ProEdition manual, as you stretched the throttle range of the transmitter. So the given percentages may not fit to the desired rpms and the percentage for autorotation bailout mode may change. Use Governor menu point D to check how MICROBEAST interprets your throttle curve values by watching the Status LED color in the different flight phases at menu point D.
 
<br />
 
<br />
- If MICROBEAST PLUS does not get a valid signal from the receiver within 2 seconds it'll lock the throttle and set it to the throttle failsafe position. I.E. this can happen when the receiver does not bind to the transmitter signal immediately when powering up. With some systems this can take a few seconds or this can occur when the transmitter is positioned too close to the receiver. So if the ESC does not arm in this condition probably the throttle failsafe position is not set correctly. Please enter Receiver setup menu and reset the failsafe position at receiver menu point N.
+
- If MICROBEAST PLUS does not get a valid signal from the receiver within 2 seconds it'll lock the throttle and set it to the throttle failsafe position. I.E. this can happen when the receiver does not bind to the transmitter signal immediately when powering up. With some systems this can take a few seconds or this can occur when the transmitter is positioned too close to the receiver. So if the ESC does not arm in this condition probably the throttle failsafe position is not set correctly. Please enter Receiver setup menu and reset the failsafe position at receiver menu point N.<br />
Note: After performing adjustments at Receiver setup menu both the Governor and AttitudeControl will be disabled.
+
<br />
So when using one or both of these functions don't forget to enable them again at Parameter menu point L and Setup
+
{{QUOTE|Note: After performing adjustments at Receiver setup menu both the Governor and AttitudeControl will be disabled. So when using one or both of these functions don't forget to enable them again at Parameter menu point L and Setup menu Point N. Especially in respect to the Governor function watch out not to switch on throttle as long as the Governor function is disabled at Setup menu point N. Otherwise the motor will start to run very abruptly when switching to idle up as you have direct motor control from the transmitter.}}<br />
menu Point N. Especially in respect to the Governor function watch out not to switch on throttle as long as the
  −
Governor function is disabled at Setup menu point N. Otherwise the motor will start to run very abruptly when
  −
switching to idle up as you have direct motor control from the transmitter.<br />
      
===Nitro RPM Governor - When recovering from an autorotation using the autorotation bail out function the throttle increases up to nearly full throttle and stays there=== <!--T:70-->
 
===Nitro RPM Governor - When recovering from an autorotation using the autorotation bail out function the throttle increases up to nearly full throttle and stays there=== <!--T:70-->
Line 295: Line 303:  
* If throttle response is too low the main rotor may speed up immediately in unloaded conditions, e.g. when the helicopter is descending and the RPM Governor will only give soft throttle inputs when the head speed decreases.
 
* If throttle response is too low the main rotor may speed up immediately in unloaded conditions, e.g. when the helicopter is descending and the RPM Governor will only give soft throttle inputs when the head speed decreases.
 
* If the response is set too high on the other hand, the throttle may stutter audible when unloading the motor and/or the motor rpm will kick in very hard and overshoot after the rotor head was loaded and the rpm decreased, causing the tail rotor to turn due to the immediate load change.
 
* If the response is set too high on the other hand, the throttle may stutter audible when unloading the motor and/or the motor rpm will kick in very hard and overshoot after the rotor head was loaded and the rpm decreased, causing the tail rotor to turn due to the immediate load change.
The height of throttle response highly depends on factors such as heli size (blade size), motor power and performance and/or the throttle response behavior of the speed controller (when flying an electric heli). If you need to adjust the throttle response, we recommend to start with the lowest value and increase accordingly. Also you should use a lower head speed for adjustment as here you can see the effect more distinct.
+
The height of throttle response highly depends on factors such as heli size (blade size), motor power and performance and/or the throttle response behavior of the speed controller (when flying an electric heli). If you need to adjust the throttle response, we recommend to start with the lowest value and increase accordingly. Also you should use a lower head speed for adjustment as here you can see the effect more distinct.<br />
Only increase the throttle response stepwise and make sure the throttle will not start to oscillate.
  −
Note that with nitro helicopters high throttle response can cause the motor to quit when the throttle
  −
is opened too fast. With electric helicopters changing the throttle very fast can cause the speed
  −
controller to overheat and especially hard changes from unloaded to loaded conditions can cause incorrect
  −
commutations of the ESC (depending on the type of motor) which can damage the ESC if this does not have
  −
appropriate protection mechanisms.<br />
   
<br />
 
<br />
 +
{{QUOTE|Only increase the throttle response stepwise and make sure the throttle will not start to oscillate. Note that with nitro helicopters high throttle response can cause the motor to quit when the throttle is opened too fast. With electric helicopters changing the throttle very fast can cause the speed controller to overheat and especially hard changes from unloaded to loaded conditions can cause incorrect commutations of the ESC (depending on the type of motor) which can damage the ESC if this does not have appropriate protection mechanisms.}}<br />
    
==AttitudeControl== <!--T:72-->
 
==AttitudeControl== <!--T:72-->
Bureaucrats, Administrators, translate-proofr
15,511

edits

Navigation menu