Gremsy T1 Manual

GETTING STARTED
INTRODUCTION
T1 is the lightest ready-to-fly platform of Gremsy built specifically for inspection. Designed to mount quickly and easily onto a wide range of drones within 5 seconds of setup, T1 becomes the most impressive aerial gimbal that you can never found in any others. Its compact and ultra lightweight translate to longer flight time thus making it one highly demanded gimbal for industrial experts.
FEATURES
HYPER QUICK RELEASE
New mechanical and electrical integration quick release features spring contacts and ability to get power directly from drone to convert to a 12V power supply.
PLUG & PLAY
Say goodbye to complex setups and time consuming process. The T1 provides an easy one step plug and play installation that takes only 5 seconds to complete.
NEW I/O DESIGN
Intuitive hardware interface including variety of ports has relocated on QR to quickly interface with multiple devices such as 3rd party flight controller, remote control, auxiliary I/O and power your ideal system of cameras/accessories.
HEATED & TEMPERATURE CONTROLLED IMU
Heated and temperature controlled IMU sensor with advanced 6-point calibration allows reliable performance even in extreme weather. Temperature is maintained within 0.2 degrees Celsius accuracy.
HIGH PERFORMANCE GIMBAL CONTROLLER
gMotion Controller, designed and made by Gremsy based on a 32 bit high performance ARM microprocessor providing fast response and accurate calculation. Sensor data and motors correction are updated as fast as 2000 times per second to enable incredibly smooth footage.
CLEAN DESIGN - INTERNAL WIRING
No exterior wires, more solid. This clean design helps the T1 overcome wind resistance with ease to bring out the best video quality while staying agile.
COMPACT & ULTRA LIGHTWEIGHT
Small in hand, powerful in the sky. The slimmed down T1 is small enough to fit into your backpack and take anywhere, yet strong enough to handle up to 1.5 lbs payload.
BUILT FOR INSPECTION
T1 has powerful built-in functions that are completely compatible with thermal and zoom cameras to perfectly fulfill their duties with minimal setup and equipment.
SPECIFICATIONS
Product Name Gremsy T1
System Type 3-Axis Digital Gyro-Stabilized
Weight 1.65 lbs / 750 g
Camera Cage (Standard) (W X W X H) 105mm x 90mm x 90mm
Construction All Aluminum
Input Voltage 12 – 52V
Working Current

Static Current 300mA @12V

Dynamic Current 600mA @12V

Locked Motor Current Max 3.5A @12V

Connection USB, CAN, UART, WIFI (Optional)
Payload 1.5 lbs / 700 g
OS Platform Supported Windows / Mac / iOS / Android
Single Operator Follow Mode
Dual Operator SBUS / Spektrum / PPM
Pan Range 360 degree continuous
Tilt Range +/- 90 degree
Roll Range +/- 45 degree
GREMSY T1 MECHANICAL COMPONENTS
  • 01. Hyper quick release
  • 02. Pan motor
  • 03. Pan adjustment
  • 04. Roll motor
  • 05. Gimbal controller
  • 06. Roll adjustment
  • 07. Tilt motor
  • 08. Tilt top bar
  • 09. Camera plate
  • 10. Tilt front- back adjustment
  • 11. Tilt vertical adjustment
  • 12. Top camera screw
GREMSY T1 I/O CONNECTORS
HYPER QUICK RELEASE CONNECTORS & PINOUTS

POWER: to get power directly from external batteries of the drone or other power supply. Voltage input range from 12V to 52V and is down converted to a stable 12V by the internal circuit to provide power to gimbal and accessories.

Connector type: Molex Microfit 3.0 2 pin

CAN: to interface with CAN bus on DJI Flight controller or another module that uses CAN bus.

Connector type: JST SM04B-ZESS-TB

COM2: to interface with Pixhawk or Pixhawk 2 via Mavlink protocol or other modules that use serial protocol (UART), this port is internally connected to COM2 port on the gimbal controller.

Connector type: JST SM04B-ZESS-TB

SBUS: To interface with SBUS receive. This port is internally connected to SBUS port on the gimbal controller.

AUX: Provide 12 V output (2A max) to power camera and accessories and there are S1, S2, S3 optional signal (1A max) for users to connect to other devices such as AV signal or camera trigger...This port is internally connected to AUX port on the camera tray.

Connector type: JST SM05B-ZESS-TB

GIMBAL CONTROLLER CONNECTORS & PINOUTS

USB: to interface with computer or upgrading firmware

Connector type: Micro USB TYPE B

COM2: to interface with other modules that use serial protocol (UART), this port is internally connected to COM2 port on the hyper quick release.

Connector type: JST SM04B-GHS-TB

COM3: to interface with other modules that use serial protocol (UART).

Connector type: JST SM04B-GHS-TB

COM1 (WIFI): to interface with optional WIFI module to enable wireless communication between gimbal and smartphone or computer.

Connector type: JST SM04B-GHS-TB

SBUS: to interface with SBUS receiver, this port is internally connected to SBUS port on the quick release

PPM: to interface with receiver that supports PPM output.

JR: to interface with JR/SPEKTRUM satellite receiver.

Connector type: JST S3B-ZR

CAMERA TRAY CONNECTOR & PINOUT

AUX: Provide 12V output (2A max) to power camera and accessories and there are S1, S2, S3 optional signal (1A max) for users to connect to other devices such as AV signal or camera trigger...This port is internally connected to AUX port on the Hyper Quick Release

Connector type: JST SM05B-ZESS-TB

These ports provide output power. Please do not use external power supply to input power. Doing so will damge the electroni inside the gimbal

GREMSY T1 ELECTRONIC DIAGRAM
What’s In The Box
  • 01. Gremsy T1 Gimbal
  • 02. Hyper Quick Release
  • 03. Slide Camera & Camera Screw
  • 04. Gremsy T1 Cables & Tools
    • A. Micro USB Cable

      x1

    • B. Power Supply Cable

      x1

    • C Canlink Cable For Pixhawk

      x1

    • D. Canlink Cable For DJI A3/N3

      x1

    • E. Sbus Cable

      x1

    • F. Auxiliary Cable

      x2

    • G. Canlink Cable For DJI A2/ Naza V2 / Wookong

      x1

    • H. Allen Key Set

      x1

Hyper Quick Release
Mounting Hyper Quick Release
Using 32mm square M3 pattern to mount the top part onto the frame or damping isolator.
Connect

STEP 1: The marks on the top part and bottom part must be aligned. The button on the ring should be aligned with the unlocked icon as shown in the first picture.

STEP 2: Keep everything aligned and attach the bottom part to the top part.

STEP 3: Rotate the ring clockwise until hearing a snap, the button should be automatically popped out and aligned with locked icon.

Disconnect

STEP 1: Press and hold the button.

STEP 2: Rotate the ring counterclockwise.

STEP 3: When the button aligns the unlock icon, the T1 can be detached from the top part of Hyper Quick Release.

Powering Up The Gremsy T1

After connecting to the power supply, the gimbal will perform series of alignments, self tests, which last about 5 seconds and will determine the status of the gimbal, indicated by the Status LED color. During this time, don’t touch the gimbal or camera.

Always start the gimbal with a balanced camera set up otherwise after initialization the controller will return an error followed by a red color indicator.

Step 1
Make sure the Hyper Quick Release is mounted to the drone and its power port is already connected to the power supply correctly. Next, let’s mount the gimbal to the Hyper Quick Release, it will be automatically powered up.
Step 2
Wait about 5 seconds, do not touch the gimbal or camera.
Step 3

If the status LED is blinking green, the gimbal is ready for use. By default, the gimbal is in Follow mode if the motors are turned ON by the Function Button. Pan and tilt will hold the last orientation during turning on motor in follow mode so Tilt axis can be positioned to preferred orientation by hands.

If the status LED is solid red, something is wrong with the gimbal and motors can not start. Connect to the software/apps to check details of the error message.

Read “LED STATUS INDICATOR” in next section for more information.

Status LED Indicator
STATE LED STATUS DESCRIPTION
01 Blink Low Battery
02 Solid System Error (Motor or IMU)
03 Blink Calibrating
04 Solid System Boot
05 Blink System Ready
06 Blink Lock Mode
07 Solid Follow Mode
08 Blink Remote with Lock Mode
09 Solid Remote with Follow Mode
10 Blink Auto-tuning in process
12 Blink Canlink with Lock Mode
12 Solid Canlink with Follow Mode
Operation Modes
Gremsy T1 Has 2 Operation Modes

LOCK MODE: is a stabilization mode where the camera maintains orientation independently of the rest of the gimbal and the orientation can be changed by an external control signal from remote control.

FOLLOW MODE: in this mode, the camera will mimic the operator’s movement and allows one person to control camera tilt and pan without using an external device like a remote control.

Gremsy T1 Supports

SINGLE OPERATOR: using FOLLOW mode.

DUAL OPERATOR: a second operator can use a Remote Controller (SBUS, SPEKTRUM, PPM) to control gimbal’s movement.

Working Operation

Gremsy T1 has 2 working operations: Normal and Inverted.

After powering up the gimbal , it will automatically detect if the gimbal is in inverted operation or normal operation based on pan motor position.

During working, switching to other working operation made easy by changing pan motor position, the gimbal will automatically detect new type of working operation.

Swithching Between Modes

Using function button

PRESS TIMES MODES
Once time Turn motors ON
2 times Lock mode
3 times Follow mode
Hold 3 seconds Turn motor OFF
4 times Calibrate Gyros

Using mode channel on remote control

POSITIONS MODES
High Follow mode
Motors ON
Midle Lock mode
Motors ON
Low Motors OFF

Using software/application

If there is a remote control signal, changing modes or turning motors on/off by other methods such as using the function button or software will not take effect because the remote control signal has the highest priority and override the command.

Installing Software / App

Mobile apps are available in App Store and Google Play

App name: gTune
Searching: “gremsy gtune”

Desktop software

Download at:
www.gremsy.com -> Support -> Product Support -> Gremsy T1

Using USB/WIFI Connection
To configure and monitor data of Gremsy software/app either USB/Wi-fi connection is required.
Using USB Connection

Make sure the Silab USB driver is already installed. The driver can be found at:
www.gremsy.com -> Support -> Product Support

STEPS TO CONNECT:

  • 1 - Power ON the T1.
  • 2 - Connect USB cable from gimbal controller to Mac/PC.
  • 3 - Run the gTuneDesktop software.
  • 4 - On Connection Tab, select the Serial option.
  • 5 - Select the correct COM port in the list.
  • 6 - Click on the “Connect” button.
Using WI-FI Connection

ON MAC/PC

STEPS TO CONNECT:

  • 1 - Select the wifi network named gStabi_xxxx
  • 2 - Enter the default wifi password: gremsygstabi
  • 3 - Run the gTuneDesktop software.
  • 4 - On Connection tab, select WIFI option.
  • 5 - Click on the “Connect” button.

ON MOBILE APP

STEPS TO CONNECT:

  • 1 - Check device’s setting and turn OFF mobile data if it’s available.
  • 2 - Select the wifi network named with gStabi_xxxx
  • 3 - Enter the default wifi password: gremsygstabi
  • 4 - Start gTune app. Once again, the app reminds users to turn OFF mobile data, if mobile data is OFF already, press OK to ignore and then press Connect button.
Balancing
To achieve the best performance from the T1, proper balancing is necessary. Accurate balance is critical in shots where the gimbal will be subjected to extreme movements or accelerations. There are 3 axes that need to be precisely balanced prior to powering up the gimbal.
Mounting The Camera

Use a 1/4”-20 screw to secure the camera to the camera tray, then put the camera to the gimbal and tighten the top bar screw.

Tilt Axis Front-Back Balance

When the proper front-back balance is achieved, the camera will stay level when you remove your hands.

1. Loosen the thumbscrew underneath the camera tray and the top bar screw. Then, gently slide the camera forward or backward until the tilt axis remains level.

2. Tighten the thumbscrews to lock the camera and camera tray in position.

Tilt Axis Vertical Balance

When the proper vertical balance is achieved, you can rotate the camera in any angle and it will stay at that position.

1. Rotate the tilt axis so that the lens is pointing upward.Then, loosen both vertical adjustment thumbscrews, gently slide the camera mount crossbar and the top bar forward and backward until the camera remains pointing upward when released.

2. Tighten the thumbscrews. Check the number markings on both vertical rods are the same. Sometimes, the vertical balance could not be achieved, the front-back balance should be re-checked in this case.

Roll Axis Balance

When the proper left-right roll balance is achieved, the camera will stay level when you remove your hands.

1. Loosen the thumbscrew underneath the roll bar, then gently slide the roll bar left or right until roll axis remains level.

2. Tighten the thumbscrew to lock the roll bar in position.

Pan Axis Balance

Tilt the gimbal about 20 degrees from the verticality, identify if the gimbal is front heavy or back heavy. Slide the pan axis slider until the camera does not swing.

1. Loosen the thumbscrew, then gently slide the pan axis slider backward/forward until it doesn’t swing and stay at any given position when released.

2. Tighten the thumbscrew to make sure pan axis slider is locked in position.

SOFTWARE - TUNING
After the camera is balanced on the Gremsy, it’s time to fine tune some parameters for best performance.
Stiffness Tuning

Stiffness setting has a significant impact on the performance of the T1. This setting adjusts the degrees to which the gimbal tries to correct for unwanted camera movement and hold the camera stable. The higher you can run the setting without vibration or oscillation, the better.

General Method

Start with a low value of 20 for all axes then turn motors ON. Slowly increase this setting until you feel an oscillation in each axis, then reduce it until the oscillation subsides. You can touch the camera to feel the oscillation during tuning. Increase the stiffness setting 5-10 points at a time until oscillation appears then reduce 5 points until oscillation subsides.

Step 01 - Tilt Stiffness

Slowly increase this setting until you feel an oscillation in the tilt axis, then reduce the setting until the oscillation subsides. Make sure there is no vibration when tilting the camera up and down and when moving the gimbal in any orientation.

Step 02 - Roll Stiffness

Slowly increase this setting until you feel an oscillation in the roll axis, then reduce the setting until the oscillation subsides. Pick the T1 up and make sure there is no vibration when you move the gimbal around.

Step 03 - Pan Stiffness

Slowly increase this setting until you feel an oscillation in the pan axis, then reduce the setting until the oscillation subsides. Tilt the T1 about 20 degrees from the verticality and make sure that no vibrations are presented.

Auto tuning

The Auto-Tune function provides automatic adjustment of each motor’s stiffness value to find a good setting, the process will take around 1-2 minutes. Please turn motor ON prior to starting Auto-Tuning.

The settings found by Auto-Tuning are usually good to start with however, it’s recommended to manually reduce stiffness if there is an oscillation in a specific axis or increase stiffness in case if it is too low.

Filter

The purpose of the filters is to eliminate noise and vibration due to structural resonances in the camera, lens, or gimbal.

Setting the filters too high or too low can cause signal disturbances that can reduce the overall stabilization

Gyro Filter

Defines the strength of the filter applied to Gyro sensor output. If the gimbal has oscillations that cannot be corrected by adjusting stiffness settings, the Gyro Filter is used to further tune the gimbal and remove the oscillation.

Output Filter

Defines the strength of the filter applied to motors output. If the gimbal has oscillations that cannot be corrected by adjusting stiffness settings, the Output Filter is used to further tune the gimbal and remove the oscillation.

1. If the gimbal is vibrating at a high frequency after tuning, increase the filter values.

2. If the gimbal is oscillating or rocking at a low frequency after tuning, decrease the filter values.

Default Values
Gyro Filter 1
Output Filter 2
Expert / advanced settings

There are some expert parameters that normally do not need to be adjusted. Leave these parameters at default settings unless they are required for troubleshooting.

Hold Strength

If “Auto power adjustment” is enabled, “Hold strength” will be the minimum power level required for the corresponding axis. The controller will automatically adjust power level from minimum to maximum level depending on the displacement between current angle and commanded angle.

If “Auto power adjustment” is not selected “Hold strength” will be constant power level provided to the corresponding axis and should be adjusted manually. This option is only recommended for advanced users.

For heavy cameras, it’s suggested to increase hold strength for each axis around 10% than the default value. If “Auto power adjustment” is not selected “Hold strength” will be fixed power level provided to the corresponding axis and should be adjusted manually. This option is only recommended for advanced users.

Gain

Defines how fast each axis will return to commanded position. To reload default expert settings just press “Default” in the expert menu.

Default Settings
HOLD STRENGTH TILT ROLL PAN
30 30 30
GAIN 120
AUTO POWER ADJUSTMENT: ENABLED
Follow Mode Settings

The most widely used mode of single operation is Follow mode where the gimbal operator controls to pan and tilt of the camera. The camera movement will mimic the user’s input from the top-mount while the footage remains stable. The follow mode can be configured to be either very linear and robotic, or smooth and cinematic.

Follow mode settings is available for Tilt axis and Pan axis.

Speed

Defines how fast camera will follow the movement.

Smooth

Smooth out the camera movement by adjusting this parameter. The higher the value is the smoother camera moves but at the expense of more delay in following the movements.

Window

When the movement is out of the window zone, the camera starts to move. Within the window zone, the camera maintains its direction.

Tilt Lock

If this option is selected, the tilt axis will maintain its angle and only be controlled by remote control.

Airborne

This feature is not available on the T1.

Rotation Limit

Travel of Tilt and Roll axis can be limited using UP LIMIT and DOWN LIMIT. The Pan axis keeps the ability to pan 360 degrees itself.

Up Limit

Set the up limit for Tilt or Roll axis (in 1 degree unit). The default values are -90 for Tilt and -45 for Roll.

Down Limit

Set the down limit for Tilt or Roll axis (in 1 degree unit). The default values are 90 for Tilt and 45 for Roll.

Window

Set the Roll offset (in 0.1 degree unit) is only applicable when there is no remote control signal since remote control will override the roll angle. This is useful to fine trim the horizon. The default value is 0.

IMU Sensor

The IMU sensor used in the T1 is a combination of a high precision 3 axis gyroscope sensor and a 3 axis accelerometer sensor.

IMU board is enclosed in a weather proof case and being heated where the temperature inside is controlled around 50°C with 0.2°C accuracy. Thanks to this feature, gyro calibration is no longer required in most situations.

In order to provide extra high precision data output, the IMU is performed 6-point calibration at Gremsy factory.

The T1 controller has a special algorithm to provide attitude estimation based on input data from the IMU sensor. This attitude estimation helps the controller to command motor output to compensate for camera movement.

Gyro Calibration

Thanks to temperature controlled and heated IMU, gyro calibration is not necessary as the gyro was calibrated at the factory and the temperature inside IMU remains constant around 50 degrees. However, if you notice drift during operation in extreme weather (below -20C or above 50C) please re-calibrate the gyro.

CALIB AT STARTUP: this feature is not available on the T1

After Gyro Calibration, Gyro Offset X, Y, Z will change to a new value depending on the temperature.

Accelerometer Calibration

Do not use this function, please contact Gremsy Support Engineers. Accelerometer sensor was calibrated properly at the factory to achieve accurate horizon level with special and precise equipment. Users do not need to do this unless it’s required for troubleshooting.

Canlink Configuration
Introduction

CANLINK is Gremsy’s proprietary solution to get information from the third party flight controller to correct horizon drift

Without CANLINK, our gimbal can maintain locked horizon most of the cases where prolonged acceleration is not presented . When prolonged acceleration is presented such as circular flight or prolonged bank turn (where centrifugal force appears), horizon will drift after certain period of time

In order to have Canlink worked properly, GPS module should installed together with flight controller.

CANLINK Connection

DJI FC

Connect the cable from CAN port on hyper quick release to CAN port on COMPASS/GPS module on DJI FC.

PIXHAWK

Connect cable from COM2 port on hyper quick release to TELEMETRY 1/ TELEMETRY 2 on Pixhawk , Pixhawk 2. Once connected, the gimbal controller will automatically send MAVLINK message to set attitude update rate of flight controller at 10Hz.

Using CANLINK

When the first turn on the motor, make sure the pan axis is aligned with the forward direction of the copter in order for the gimbal to calculate the attitude correctly. After turning on the motor, the LED status turns to the pink color indicating that CANLINK connection between gimbal and flight controller has been established.

Fine Trim The Horizon

There is tolerance between the gimbal’s IMU and flight controller’s IMU due to mechanical mountings error or calibration error, for example, the gimbal’s frame and the flight controller’ plane is not perfectly parallel with roll and pitch axis and usually within 1-2 degree. To address this, we offer a way to fine trim the horizon in 3 steps.

Step 1:
TURN MOTOR ON for the first time, make sure the pan axis is aligned with the forward direction of the copter during turning on the motor. LED status will change to pink color.
Step 2:

Use radio control to move the pan to a position which is 180 degree away from the forward position of the copter. Use a bubble level in order to observe the horizon: adjust roll offset until it is level.

If radio control is not available, switch gimbal in lock mode and rotate the copter 180 degrees could achieve the same result.

Step 3:

Use radio control to move the pan to a position which is 90 degree away from the forward direction of the copter. Use a bubble level in order to observe the horizon: adjust tilt offset until it is level.

If radio control is not available, switch gimbal in lock mode and rotate the copter 90 degrees could achieve the same result.

REMOTE CONTROL

T1 supports SBUS , SPEKTRUM and PPM receivers. There are some parameters to be aware of before assigning channels to the receiver.

SMOOTH: increasing this number will smooth out the movement of the corresponding axis but will also cause a delay.

SPEED MODE: when speed mode is selected, the speed of the corresponding axis will depend on how far the stick position is from the neutral position. It is recommended that TILT and PAN channels should be set to speed mode.

ANGLE MODE: when angle mode is selected, the corresponding axis will move to the angle set by current stick/knob position. It’s recommended ROLL channel should be set to angle mode.

SBUS/PPM Settings
Receiver Connection

SBUS port is located on the Hyper Quick release and the gimbal controller. PPM port is located in the Roll housing.

The receiver must be connected to correct wires order. The SBUS/PPM port has 5V output to power the receiver, please do not use external power supply to power the receiver at the same time. Doing so may damage the electronic inside the gimbal.

Channel Setting

There are 6 channels to assign: MODE, TILT, ROLL, PAN, TILT SPEED, PAN SPEED.

Assign MODE channel first then follow the order above because MODE channel is used to change operating modes of the gimbal and should be assigned to a 3-position switch as follows:

  • Switch at high position: FOLLOW MODE , MOTORS ON
  • Switch at middle position: LOCK MODE , MOTORS ON
  • Switch at low position: MOTORS OFF

TILT and PAN channel should be in speed mode and ROLL channel in angle mode.

TILT SPEED or PAN SPEED could be assigned to the same channel and should be assigned to throttle stick, dial, or other non-centering control on the transmitter.

Below is an example of channel assignment to the Futaba T8FG.

CHANNEL CONTROL NOTE
MODE 5 SC 3 positions switch
TILT 2 J2 Speed mode
ROLL 4 T4 Angle mode
PAN 1 J1 Speed mode
TILT SPEED 4 J3 =
PAN SPEED 6 RD
JR/SPEKTRUM Settings
JR / Spektrum Satellite Receiver Connection

Connect satellite receiver to the JR port on the gimbal controller as shown in the picture. Make sure satellite receiver is already bound to the transmitter (RED led is solid).

Channel Settings

Choose 10 bit or 11 bit type resolution on the software and assign proper channels as per SBUS settings.

UPGRADING FIRMWARE

Only USB connection allows upgrading firmware. Refer to Section “01. GETTING STARTED” for USB connection.

Make sure Silab USB driver is already installed. The driver can be found at:
www.gremsy.com -> supports -> product support

How To Upgrade
  • 01 - Power on the T1.
  • 02 - Connect USB cable from T1 controller to Mac/PC.
  • 03 - Run the gTune Desktop software.
  • 04 - In the software, select “Serial” option on “connection” tab.
  • 05 - Select the port in the list.
  • 06 - Click on the “Connect” button.
  • 07 - Go to “Upgrade” tab.
  • 08 - “Browse” to firmware file from your computer.
  • 09 - Make sure the RF receiver (if available) is already removed.
  • 10 - Click “Upgrade” button. The process will take about 2 minutes. When the firmware is upgraded successfully, the T1 will be restarted automatically.
TROUBLESHOOTING

Only USB connection allows upgrading firmware. Refer to Section “01. GETTING STARTED” for USB connection.

Make sure Silab USB driver is already installed. The driver can be found at:
www.gremsy.com -> supports -> product support

PROBLEM POSSIBLE CAUSES SOLUTION
Status LED is blinking red Low battery Recharge battery
Status LED is solid red during startup Camera is not balanced well or not installed Check camera balancing
IMU cable is loose Check in software for IMU sensor error, re-seat IMU sensor connector
Tilt motor cable or encoder cable is loose Check in software for Tilt error, re-seat tilt motor connector and encoder connector
Roll motor cable or encoder cable is loose Check in software for Roll error, re-connect roll motor connector and encoder cable
Pan motor cable or encoder cable is loose Check in software for Pan error, re-connect pan motor connector and encoder cable
Status LED is solid red during operation IMU sensor cable is loose Re-seat IMU sensor connector
Status LED is solid white after start up Excessive gyro drift Re-calibrate
Gremsy T1 has oscillation in one or more axes Stiffness setting is too high Reduce stiffness
Thumbscrew/top bar nut is not tightened Check tightening
Camera mounting is not stiff enough Check camera mounting
Filters settings are incorrect: Gyro and output filter should only be changed if other methods of reducing oscillation have failed Please read more in manual about Gyro filter and output filter (Advanced settings)
Gremsy gimbal seems to be drifting Gyro sensor is drifting too much Re-calibrate gyro
Motors seem to be weak Stiffness is too low Increase stiffness
Auto-power adjustment is not enabled Check in Expert menu if Auto-power adjustment is enabled or not
Footage appears to wobble side to side or up and down Camera is not properly balanced Check camera balance
Stiffness setting is low Increase stiffness settings, start with the axis which is poorly stabilized. Higher Stiffness will achieve better stabilization. The tuning process is described in the user manual.
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