User manual FUTABA G501

[. . . ] The original ability of a gyro to suppress changes in an aircraft's attitude due to wind and engine torque changes and other unexpected phenomena has been increased substantially. sensor element itself. The sensor is protected against unwanted vibrations around the sensor shaft while maintaining high response. · Simple sensitivity adjustment. High side and low side sensitivity can be easily adjusted from 0 to 100% each by means of control box trimmers. The sensitivity can also be adjusted from the transmitter. · Angular acceleration commands used. To take advantage of the wide dynamic range of the piezoelectric gyro, angular acceleration commands are used. The transmitter stick operating angle becomes the aircraft command for angular acceleration and the aircraft rotating speed is proportional to the stick operating angle that is obtained while maintaining stabilization performance. [. . . ] When the direction of the sensitivity switch is opposite, set the direction using the reverse function for gyro channel. This is usually CH. 5. Control amp Servo *Servo controlled by gyro. Gyro output polarity switch Connector A (black) To receiver rudder channel (helicopter yaw axis stabilization) To receiver channel 5 (sensitivity switching channel) Connector B (red) "When adjusting the linkage, always check the polarity of the gyro output. If the polarity is opposite, switch it with the direction select switch. PRECAUTIONS WHEN TURNING ON THE RECEIVER POWER Never move the aircraft for four or five seconds after turning on the gyro power (shared with receiver). Since initialization is automatically performed inside the gyro immediately after the power is turned on, if the aircraft -2is moved at that time, the neutral position will change. At this time, the rudder servo (servo controlled by gyro) moves to the home position after the servos on the other channels, but this is normal. The following shows the relation between mixing rate and gyro sensitivity. (1) adjustment at the gyro (2) adjustment from the transmitter PMIX offset rate and sensitivity PMIX offset rate (1)Adjustment at the gyro The sensitivity can be arbitrarily set over the 0 to 100% range to correspond to the position of the transmitter sensitivity switch with the control box sensitivity high side and low side trimmers. (Hovering sensitivity) CH5 When the CH5 (sensitivity switching) switch is in the front position, the sensitivity can be adjusted from 0 to 100% with the control box high side trimmer. · Setting standard: Approximately 75° switch Gyro sensitivity (4) At this time, release the CH5 (GYR) switch by software as follows: Function control(FNC) setting Set the CH5 (GYR) switch to "NUL" (not used state). (5) Also set the CH5 (GYR) ATV function to the following value: Front position CH5 switch High side Control box (Climbing sensitivity) When the CH5 (sensitivity switching) switch is in the rear position, the sensitivity can be adjusted from 0 to 100% with the control box low side trimmer. ·Setting standard: Approximately 45% ATV function (ATV) setting Set the CH5 (GYR) ATV function to 90% in both directions. Rear position Low side (2)Adjustment from the transmitter When ATV function is used (When reverse function is normal) (Sensitivity adjustment range setting) After deciding the upper and lower limits of the sensitivity adjustment range with the control box high side and tow side trimmers, adjust the sensitivity using the transmitter CH5 ATV function. 'Setting standard: Upper limit Approximately 80% Lower limit Approximately 40% Lower limit Control box Upper limit The following describes the adjustment procedure when the FP-G501 is used with a helicopter. (All values are for when the FP-S9203 servo was used. ) Rudder linkage adjustment Place the transmitter into the neutral state and adjust the rod as described below so that the neutral position is near the center. Transmitter steering angle setting Set the ATV function rudder left and right steering angles to maximum. At this time, do not move the aircraft for about four or five seconds. Rear position Setting range +100% +30%+30% +100% ATV function rate CH5 (Hovering sensitivity) Adjust the CH5 switch Iront position ATV rate and adjust the sensitivity high side. · Setting standard: ATV rate: Approximately 75% switch Front position CH5 switch (Climbing sensitivity) Adjust the CH5 switch rear side ATV rate and adjust the sensitivity low side. · Setting standard: ATV rate: Approximately 75% *With a PCM1024Z Series transmitter, the sensitivity can be adjusted from 0 to 100% using the AFR function. When using PCM1024Z Series transmitter program mable mixing can be used. 1. First, set the sensitivity adjustment range to maximum at the control box. Low side Fully Set the control box high side and low side trimmers as shown at the right so counterthat the sensitivity can be adjusted clockwise (minimum) from 0 to 100% from the transmitter. 4. Servo horn mounting Change the servo horn spline so that the horn is perpendicular to the rod and servo. "Make the length of the servo horn as close to 16. 5mm as possible. [. . . ] If the left and right rotation speeds are different, reduce the high side by rudder ATV function. Before requesting repair, please refer to this instruction manual again and verify your settings. If you are still experiencing trouble, please request service as follows: Address (Operating precautions) · Do not move the aircraft for four or five seconds after turning on the gyro power (shared with receiver). Since initialization is automatically performed inside the gyro immediately after the power is turned on, if the aircraft is moved at that time, the neutral position may change. [. . . ]