User manual FUTABA FP-G154

[. . . ] The FP G154/G134 is a single axis rate gyro designed to stabilize aircraft. Like full size aircraft, stabilisation is accomplished by detecting angular acceleration with the rate gyro. Detected motion information is fed to the control amplifier, which then sends a counteraction signal to the appropriate control surface. FEATURES OF FP G154/G134 · The FP G 154 is for Futaba J M, F and SG Series (1520 us neutral) digital proportional radio control sets. [. . . ] · The gyro motor only can be turned on and off by gyro power switch. RATINGS Power supply voltage Current drain 4. 8V shared with rece iver Motor: 100mA, Amplifier: 20mA (at 4. 8V) Gyro body: 1. 57 x 1. 65 x 1. 60 in. (42 x 34 x 39mm) Dimensions and weight Control amplifier: 1. 06 x 1. 89 x . 63 in. (102g) CONNECTIONS (A) Connector G134 Black (B) Connector G154 (A) Connector G154 (B) Connector G134 White Connect 10 the servo (rudder servo for helicopter) Connect to receiver channel 10 be stabilized (rudder channel for helicopter) Gyro direction reverse switch Control amplifier Gyro output trimmer By using the gyro output trimmer you may adjust the sensitivity between 0% and 100%. Gyro power switch Gyro body RATE GYRO INSTALLATION NOTE: Be sure gyro is mounted as shown; for stabilization of the correct axis. Helicopter · For rudder use Connect connactor (A) to the receiver rudder channel and connector [B ] to the rudder servo. Aircraft - For aileron use Connect connector (A) to the receiver aileron channel and connector IB) to the aileron servo. Aircraft - For elevator (pitch shaft) use Connect connector (A) to the receiver elevator channel and connector (B) to the elevator servo. -When the gyro is mounted 180 out of phase, the direction of the correcting mix will be reversed. To correct this situation, switch the internal reverse amp switch to "REV". After mounting the gyro to the fuselage, recheck its direction of operation, INSTALLING THE GYRO BODY · The best mounting position is at the center of gravity of the aircraft; however, it may also be installed a short distance away from the center of gravity. · Install the gyro where there is little engine vibration. · Attach the gyro to the fuselage with double-side adhesive tape. CONTROL AMPLIFIER INSTALLATION · Install the control amp where there is little engine vibration, etc. · Attach the control amp with double-side adhesive tape. UK double sided adhesive tape (Clean the mounting sur face and stick the gyro to t h e with soft double-side adhesive tape. Double-side adhesive tape Attach with soft double-side adhesive tape. Us* soft double-side adhesive tape about 3mm thick and 10mm wide. Use soft double-side adhesive tape about 3mm thick and 10mm wide. EXAMPLE OF GYRO ADJUSTMENT WHEN MOUNTED IN A MODEL HELICOPTER. · Set the gyro output trimmer to graduation 7 using a small flat blade screwdriver. · Adjust the output trimmer so that tail (rudder) hunting does not occur when hovering with helicopter fuselage facing the wind and when turning and flying straight ahead. · If hunting does occur then lower the sensitivity by reducing the gyro output trimmer. When you sense that gyro sensitivity is low then increase gyro output trimmer to desired sensitivity. Low when hunting occurs POWER SUPPLY ·The G154/G134 Rate Gyro uses the same power supply as the receiver and servos. [. . . ] When flying, always set the gyro power switch to ON. · When a gyro output switching function is required, such as in competition, etc. , purchase the G153/G133 or G153BB/G133BB from your local Futaba dealer. When requesting repair after long use, accident, or if any other trouble has occurred, describe the problem in as much detail as possible. This will allow us to isolate the trouble point quickly and reduce the repair time. [. . . ]