How to fix THORLABS GVS011 Scanner motor not responding?
If the THORLABS Scanner motor isn't responding, ensure power is correctly applied to the board. Also, check for faulty or improperly connected cables. Try resetting the device to clear any faults. Finally, verify the device is not disabled by checking the jumper settings.
Why is my THORLABS GVS011 unstable?
Scanner instability can occur if the driver board is incorrectly tuned to the motor, so re-tune it. Ensure the driver board is connected to the correct motor. Check and reset any tampered potentiometers. Avoid driving the motor with excessive amplitude and frequency.
What to do if THORLABS GVS011 galvo periodically becomes unstable?
If the THORLABS Scanner galvo periodically becomes unstable, it may be due to an incorrectly tuned galvo driver card. In this case, re-tune the galvo driver card. Also, ensure the error signal remains within acceptable limits, as exceeding the maximum error signal value can cause instability.
Why does THORLABS GVS011 Scanner position signal overshoot and grow over time?
An overshoot in the position signal that grows over time in your THORLABS Scanner may be due to a power supply that cannot deliver enough current for the intended application. Choose a power supply that can deliver adequate current.
What causes THORLABS GVS011 mirror to shoot off to one side?
If the THORLABS Scanner mirror periodically shoots off to one side and then stops, it could be due to the position sensing circuitry not functioning correctly. Check and repair the position sensing circuitry. Alternatively, the motor cable may be incorrectly wired; inspect and rewire it properly.
How to stop oscillation in THORLABS GVS011 Scanner galvo motor current?
Oscillation in the THORLABS Scanner galvo motor current can be caused by crosstalk between the position sensing circuitry and the motor drive current. Reposition the motor drive cable. Also, use separate shielded cables for the position sensing and motor drive signals.
Why is there cross talk between axes in my THORLABS Scanner?
Cross talk between axes can occur if both motors run off the same power supply, which cannot deliver peak currents. Choose a different power supply with sufficient peak drive current capability to test.
Introduces GVS series scanning galvo systems for laser beam steering applications.
Describes galvo scanners, their components, and typical applications.
Details the galvanometer's components: motor and position detector.
Explains mirror assembly, its effect on performance, and lists mirror coatings.
Describes the servo driver board's function and schematic diagram.
Explains safety symbols used in the handbook and on the product.
Provides general warnings regarding product usage and fluid spillage.
Warns about using supplied cables and not making unauthorized adjustments.
Details factory settings, serial number matching, and heatsink requirements.
Explains how to fit heatsinks for the driver board and motor/mirror mount.
Guides on setting up a typical beam steering system with the galvo.
Introduces electrical installation and power supply considerations.
Recommends GPS011 PSU and details power requirements for driver electronics.
Warns about voltage/fuse selection and advises on cable routing for noise minimization.
Notes section applicability for PCB rev 11 or later and how to identify revisions.
Details how to connect the power cable to the PSU unit.
Refers to PSU steps (1) to (3) for power connection.
Identifies pins for connector J10 on the driver board for power connections.
Details pin assignments for connecting motors to driver boards.
Shows pinout for galvo assembly motor connector.
Explains how to connect command input signals to the driver board.
Identifies pins for the diagnostic terminal J6.
Describes diagnostic signals like Scanner Position and Motor Drive Current.
Explains how to set the Volts/Degree scaling factor using a jumper.
Outlines basic steps for operating the system, including powering and command signals.
Describes how to enable/disable drive electronics using a jumper and CMOS signal.
Provides recommended specifications for DAQ card analogue outputs.
Lists recommended scanning angles based on input beam diameter.
Discusses common issues like motor failure to respond and scanner instability.
Explains causes for mirrors shooting off and stopping.
Addresses periodic instability due to tuning or exceeding error signal limits.
Describes oscillation in motor current and its causes like crosstalk.
Explains cross-talk issues between axes due to power supply limitations.
Discusses overshoot in position signal caused by inadequate power supply.
Lists potential faults, their causes, and the actions taken by the fault control circuit.
Lists detailed specifications for mirrors, including damage threshold and wavelength range.
Details specifications for motor linearity, scale drift, repeatability, and resolution.
Lists specifications for drive electronics, including bandwidth, power supply, and operating temperature.
Details electrical connections for driver card units with PCB earlier than rev 11.
Identifies connectors on the driver board for legacy units.
Shows J10 power connector pinout for legacy driver boards.
Details J9 motor connector pinout for legacy driver boards.
Shows J7 command input connector pinout for legacy driver boards.
Describes diagnostic signals from J6 connector for legacy units.
Explains setting the Volts/Degree scaling factor for legacy units.
Provides equations to estimate power dissipated in the motor and driver boards.
Explains how to calculate required thermal conductivity for heatsinks.
Illustrates field distortion in a two-way mirror deflection system.
Shows pillow-shaped field distortion caused by mirror arrangement.
States compliance with FCC rules for Class A digital devices in the USA.
Provides EU Declaration of Conformity for GVS X1X Series.
Lists Thorlabs contact information for various regions globally.
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