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weird D term oscilating pattern
#1
Motor: Lumenier RX1806-14 2300kv
Props: Gemfan 5030
Esc: LVT littlebee 20A
frame: QAV250

LOGS/VIDEO:

turns:

log file: https://drive.google.com/open?id=0ByVTpy...V9kX29HMUU




hover flips: skip to 1:00

log file: https://drive.google.com/open?id=0ByVTpy...VlMV2pyQWc




[VIDEO legend: standard colors: roll/pitch: P (red), I (green), D (yellow), gyro (violet), yaw: P (red), I (green), gyro (violet)]

HD Version:




I have tuned CF 1.13 using Joop Brokkings instructions ...
(
... basically staring with D, backing off, then P and I. Flying seems  very stable, videos also look alright - no jello or visible vibrations. Both I and D seems to be high if you follow this tuning approach - but it seems to work.
However, when you look at BB the D-term pattern seems concerning - amplitudes are high - higher than P, and there seems to be a sustained sinusoidal pattern.
I must say i don't feel any visible effect of it when flying but also i still consider myself a newb - i built this (my first) drone only last December - xmass.
Any help/suggestion greatly appreciated.

-thx
maciek

CLI:

Code:
# version
# Cleanflight/SPRACINGF3EVO 1.13.0 Jun 6 2016 / 00:03:29 (a77bc76)
# dump master

# mixer
mixer QUADX
mmix reset
smix reset


# feature
feature -RX_PPM
feature -VBAT
feature -INFLIGHT_ACC_CAL
feature -RX_SERIAL
feature -MOTOR_STOP
feature -SERVO_TILT
feature -SOFTSERIAL
feature -GPS
feature -FAILSAFE
feature -SONAR
feature -TELEMETRY
feature -CURRENT_METER
feature -3D
feature -RX_PARALLEL_PWM
feature -RX_MSP
feature -RSSI_ADC
feature -LED_STRIP
feature -DISPLAY
feature -ONESHOT125
feature -BLACKBOX
feature -CHANNEL_FORWARDING
feature -TRANSPONDER
feature VBAT
feature RX_SERIAL
feature MOTOR_STOP
feature GPS
feature TELEMETRY
feature ONESHOT125
feature BLACKBOX


# map
map TAER1234


# serial
serial 20 1 115200 57600 0 115200
serial 0 1 115200 57600 0 115200
serial 1 64 115200 57600 0 115200
serial 2 2 115200 19200 0 115200


# led
led 0 15,15:ES:IA:0
led 1 15,8:E:WF:0
led 2 15,7:E:WF:0
led 3 15,0:NE:IA:0
led 4 8,0:N:F:0
led 5 7,0:N:F:0
led 6 0,0:NW:IA:0
led 7 0,7:W:WF:0
led 8 0,8:W:WF:0
led 9 0,15:SW:IA:0
led 10 7,15:S:WF:0
led 11 8,15:S:WF:0
led 12 7,7:U:WF:0
led 13 8,7:U:WF:0
led 14 7,8:D:WF:0
led 15 8,8:D:WF:0
led 16 8,9::R:3
led 17 9,10::R:3
led 18 10,11::R:3
led 19 10,12::R:3
led 20 9,13::R:3
led 21 8,14::R:3
led 22 7,14::R:3
led 23 6,13::R:3
led 24 5,12::R:3
led 25 5,11::R:3
led 26 6,10::R:3
led 27 7,9::R:3
led 28 0,0:::0
led 29 0,0:::0
led 30 0,0:::0
led 31 0,0:::0


# color
color 0 0,0,0
color 1 0,255,255
color 2 0,0,255
color 3 30,0,255
color 4 60,0,255
color 5 90,0,255
color 6 120,0,255
color 7 150,0,255
color 8 180,0,255
color 9 210,0,255
color 10 240,0,255
color 11 270,0,255
color 12 300,0,255
color 13 330,0,255
color 14 0,0,0
color 15 0,0,0


# mode_color
mode_color 0 0 1
mode_color 0 1 11
mode_color 0 2 2
mode_color 0 3 13
mode_color 0 4 10
mode_color 0 5 3
mode_color 1 0 5
mode_color 1 1 11
mode_color 1 2 3
mode_color 1 3 13
mode_color 1 4 10
mode_color 1 5 3
mode_color 2 0 10
mode_color 2 1 11
mode_color 2 2 4
mode_color 2 3 13
mode_color 2 4 10
mode_color 2 5 3
mode_color 3 0 8
mode_color 3 1 11
mode_color 3 2 4
mode_color 3 3 13
mode_color 3 4 10
mode_color 3 5 3
mode_color 4 0 7
mode_color 4 1 11
mode_color 4 2 3
mode_color 4 3 13
mode_color 4 4 10
mode_color 4 5 3
mode_color 5 0 9
mode_color 5 1 11
mode_color 5 2 2
mode_color 5 3 13
mode_color 5 4 10
mode_color 5 5 3
mode_color 6 0 6
mode_color 6 1 10
mode_color 6 2 1
mode_color 6 3 0
mode_color 6 4 0
mode_color 6 5 2
mode_color 6 6 3
mode_color 6 7 6

set looptime = 1000
set emf_avoidance = OFF
set i2c_highspeed = ON
set gyro_sync = ON
set gyro_sync_denom = 1
set mid_rc = 1500
set min_check = 1100
set max_check = 1900
set rssi_channel = 16
set rssi_scale = 30
set rssi_ppm_invert = OFF
set rc_smoothing = OFF
set rx_min_usec = 885
set rx_max_usec = 2115
set serialrx_provider = SBUS
set sbus_inversion = ON
set spektrum_sat_bind = 0
set input_filtering_mode = OFF
set min_throttle = 1100
set max_throttle = 2000
set min_command = 1000
set servo_center_pulse = 1500
set motor_pwm_rate = 400
set servo_pwm_rate = 50
set 3d_deadband_low = 1425
set 3d_deadband_high = 1514
set 3d_neutral = 1460
set retarded_arm = OFF
set disarm_kill_switch = ON
set auto_disarm_delay = 5
set max_arm_angle = 25
set small_angle = 25
set fixedwing_althold_dir = 1
set reboot_character = 82
set gps_provider = UBLOX
set gps_sbas_mode = AUTO
set gps_auto_config = ON
set gps_auto_baud = OFF
set telemetry_switch = OFF
set telemetry_inversion = ON
set frsky_default_lattitude = 0.000
set frsky_default_longitude = 0.000
set frsky_coordinates_format = 0
set frsky_unit = IMPERIAL
set frsky_vfas_precision = 0
set hott_alarm_sound_interval = 5
set battery_capacity = 0
set vbat_scale = 110
set vbat_max_cell_voltage = 42
set vbat_min_cell_voltage = 32
set vbat_warning_cell_voltage = 35
set current_meter_scale = 400
set current_meter_offset = 0
set multiwii_current_meter_output = OFF
set current_meter_type = ADC
set align_gyro = DEFAULT
set align_acc = DEFAULT
set align_mag = CW270
set align_board_roll = 0
set align_board_pitch = 0
set align_board_yaw = 90
set max_angle_inclination = 500
set gyro_lpf = 188HZ
set gyro_soft_lpf = 60
set moron_threshold = 32
set imu_dcm_kp = 2500
set imu_dcm_ki = 0
set pid_at_min_throttle = ON
set yaw_motor_direction = 1
set yaw_jump_prevention_limit = 200
set tri_unarmed_servo = ON
set servo_lowpass_freq = 400.000
set servo_lowpass_enable = OFF
set failsafe_delay = 10
set failsafe_off_delay = 100
set failsafe_throttle = 1200
set failsafe_kill_switch = OFF
set failsafe_throttle_low_delay = 50
set failsafe_procedure = 0
set acc_hardware = 0
set baro_hardware = 0
set mag_hardware = 0
set blackbox_rate_num = 7
set blackbox_rate_denom = 8
set blackbox_device = SDCARD
set magzero_x = -201
set magzero_y = -158
set magzero_z = 131

# rxfail
rxfail 0 a
rxfail 1 a
rxfail 2 a
rxfail 3 a
rxfail 4 s 2000
rxfail 5 h
rxfail 6 s 975
rxfail 7 s 975
rxfail 8 h
rxfail 9 h
rxfail 10 h
rxfail 11 h
rxfail 12 h
rxfail 13 h
rxfail 14 h
rxfail 15 h
rxfail 16 h
rxfail 17 h

# dump profile

# profile
profile 0

# aux
aux 0 0 1 900 1300
aux 1 1 0 1700 2100
aux 2 3 2 1500 2100
aux 3 4 2 1100 1300
aux 4 4 2 1700 1900
aux 5 4 3 1300 2100
aux 6 5 2 1300 1500
aux 7 5 3 1900 2100
aux 8 9 3 1700 2100
aux 9 10 3 1300 1700
aux 10 12 1 1700 2100
aux 11 27 0 900 1300
aux 12 0 0 900 900
aux 13 0 0 900 900
aux 14 0 0 900 900
aux 15 0 0 900 900
aux 16 0 0 900 900
aux 17 0 0 900 900
aux 18 0 0 900 900
aux 19 0 0 900 900

# adjrange
adjrange 0 0 7 900 1050 18 9
adjrange 1 0 7 1050 1200 19 9
adjrange 2 0 7 1200 1400 20 9
adjrange 3 0 8 900 1025 15 9
adjrange 4 0 8 1025 1125 16 9
adjrange 5 0 8 1150 1400 17 9
adjrange 6 0 7 1950 2100 14 9
adjrange 7 0 8 1950 2100 13 9
adjrange 8 0 5 1300 1700 9 10
adjrange 9 0 5 1700 2100 10 10
adjrange 10 0 0 900 900 0 0
adjrange 11 0 0 900 900 0 0

# rxrange
rxrange 0 1000 2000
rxrange 1 1000 2000
rxrange 2 1000 2000
rxrange 3 1000 2000

# servo
servo 0 1000 2000 1500 45 45 100 -1
servo 1 1000 2000 1500 45 45 100 -1
servo 2 1000 2000 1500 45 45 100 -1
servo 3 1000 2000 1500 45 45 100 -1
servo 4 1000 2000 1500 45 45 100 -1
servo 5 1000 2000 1500 45 45 100 -1
servo 6 1000 2000 1500 45 45 100 -1
servo 7 1000 2000 1500 45 45 100 -1

set gps_pos_p = 15
set gps_pos_i = 0
set gps_pos_d = 0
set gps_posr_p = 34
set gps_posr_i = 14
set gps_posr_d = 53
set gps_nav_p = 25
set gps_nav_i = 33
set gps_nav_d = 83
set gps_wp_radius = 200
set nav_controls_heading = ON
set nav_speed_min = 100
set nav_speed_max = 300
set nav_slew_rate = 30
set alt_hold_deadband = 40
set alt_hold_fast_change = ON
set deadband = 0
set yaw_deadband = 5
set yaw_control_direction = 1
set 3d_deadband_throttle = 53252
set throttle_correction_value = 0
set throttle_correction_angle = 800
set default_rate_profile = 0
set gimbal_mode = NORMAL
set acc_cut_hz = 15
set accxy_deadband = 40
set accz_deadband = 40
set accz_lpf_cutoff = 5.000
set acc_unarmedcal = ON
set acc_trim_pitch = 0
set acc_trim_roll = 0
set baro_tab_size = 21
set baro_noise_lpf = 0.600
set baro_cf_vel = 0.985
set baro_cf_alt = 0.965
set mag_declination = 0
set pid_controller = MWREWRITE
set p_pitch = 65
set i_pitch = 110
set d_pitch = 55
set p_roll = 40
set i_roll = 65
set d_roll = 35
set p_yaw = 90
set i_yaw = 55
set d_yaw = 0
set p_alt = 50
set i_alt = 0
set d_alt = 0
set p_level = 60
set i_level = 10
set d_level = 100
set p_vel = 120
set i_vel = 45
set d_vel = 1
set yaw_p_limit = 500
set dterm_cut_hz = 0
set gtune_loP_rll = 10
set gtune_loP_ptch = 10
set gtune_loP_yw = 10
set gtune_hiP_rll = 100
set gtune_hiP_ptch = 100
set gtune_hiP_yw = 100
set gtune_pwr = 0
set gtune_settle_time = 450
set gtune_average_cycles = 16

# dump rates

# rateprofile
rateprofile 0

set rc_rate = 90
set rc_expo = 65
set rc_yaw_expo = 0
set thr_mid = 50
set thr_expo = 0
set roll_rate = 75
set pitch_rate = 75
set yaw_rate = 120
set tpa_rate = 15
set tpa_breakpoint = 1500
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