User manual FUTABA GY601

[. . . ] AVCS GYRO GY601 INSTRUCTION MANUAL YAW-AXIS STABILIZER FOR MODEL HELICOPTER (RATE GYRO) 2 Thank you for buying a GY601 AVCS gyro. Before using your new gyro, please read this manual thoroughly and use the gyro properly and safely. FOREWORD The GY601 gyro is an AVCS (Angular Vector Control System) rate gyro developed for model helicopter competition. [GY601 Features] ·Super narrow pulse (760µs) drive system substantially improves servo reresponse. [. . . ] When A is displayed, the gyro is in the AVC mode and when N is displayed, the gyro is in the NOR mode in accordance with the operation mode setting. DATA SETTING Rudder Control Gain 17 Initial value : ACG: 120%, NCG: 130% Adjusts the rudder stick operation gain. In the AVCS mode, ACG is displayed and in the NOR mode, NCG is displayed. The display automatically changes to A or B according to the direction of the rudder stick and the gain of each direction can be set. This function is used when tracking rudder operation gain between the AVCS and NOR modes. Control Delay I Initial value : 0% Sets the delay when the rudder stick was pushed operated. Rudder stick left and right can be set separately. Control Delay D Initial value : 0% Sets the delay when the rudder stick was returned. Rudder stick left and right can be set separately. 18 DATA SETTING Gain Tracking Initial value : +0% Adjusts left and right tail braking tracking. For example, when there is a sense of hunting when stopping left pirouette or the helicopter drifts when stopping right pirouette, shift Trk in the + direction. In the opposite case, shift Trk in the - direction. Operation Mode Setting Initial : CMT Sets the gyro operation mode. In the CMT mode, G1 operates in the AVCS mode and G2 operates in the NOR mode. In the CM mode, the GY601 can be used in both the AVCS and NOR modes. DATA SETTING Flight mode Initial value : F3C 19 Switches the flight mode. The 3D mode slightly sacrifices tail suppression and stop, but lets you control pirouette speed completely proportional with the rudder stick operation amount and is suitable for 3D flight. <3D mode steering angle setting> During 3D mode setting, the transmitter rudder steering angle is set to 100% and approximately 500º/second high pirouette speed. Therefore, initially set the transmitter rudder steering angle to a low value so that the tail can be safely controlled. (About 70%) The pirouette speed is proportional to the rudder steering amount without regard to the gyro sensitivity. 20 DATA SETTING AVCS Sense Initial value : 100% Adjusts the rudder control characteristic in the AVCS mode. Check the rudder operation feeling and stopping characteristic and adjust. When the flight mode (page 19) is the 3D mode, this value becomes the pirouette standard value. Linkage Limit Setting Initial value : 100% Sets the rudder servo travel limit. Operate the rudder stick and adjust the rudder servo travel limit by pressing the +/- key so that the servo moves to the maximum linkage position. When setting, move the servo substantially so that the rudder angle automatically becomes 200% and limit setting is easy. Note: When this screen is displayed, the GY601 does not operate as a gyro. To check operation, return to the initial screen, etc. DATA SETTING 21 Remote Gain Function The remote gain function lets operator perform AVCS mode and Normal mode sensitivity adjustment and operation mode switching from the transmitter. (Channel 5 is used. ) (Remote Gain Function) Transmitter Gain/Mode Selection · CH5 switch · Idle-Up switch (T8Usuper) · Flight condition (T9Z) Receiver GY601 Mode Settings · Normal mode (NOR) · AVCS mode (AVC) · Selectable mode (CMT) Gain Settings · ATV function · Gyro mixing (T8Usuper/T9Z) · Programmable mixing (T9Z) Gain Settings · Gyro Gain Adjustment Remote Gain Channel (CH5) 22 DATA SETTING When Using a T9Z World Champion Model Transmitter Gyro Sense Mixing The Gyro Sense Mixing (GYR) function lets operator perform two-point gain adjustment at each condition. Set the sensitivity at all conditions. [GY601 Settings] Select the gyro operation mode at the GY601 Mode screen. [. . . ] Transmitter setting check Checks the transmitter setting in the ACVS mode. Check that the transmitter is not set so that the neutral position has shifted. (Transmitter setting) ·Set all rudder mixings to INH. ·Set all hovering and flight rudder trims to the same position. ·Also set the T9Z condition delay function to INH. 8 If the normal screen operation mode display is "A" under all usage conditions, neutral offset is OK. [. . . ]