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Theia lens motor controller instructions

Theia Technologies® motor control

v.180628

This lens control board can be used with Theia Technologies® motorized lenses that use a P-iris.

Supported lenses

TL936P R4

TL936P R6

TL1250P R4

TL1250P R6

TL410P R4

TL410P R6

Two versions of the board are available: one supports

the photo interrupter limit switches of the -R6 lenses, the other version does not.

Precautions and disclaimers

• Do not short circuit any part of the board

• Keep the controller board dry

• The controller board contains fuses but proper ESD protection procedures should be followed

• If the controller board becomes too hot disconnect it

• The controller is not designed for use in life sustaining or lifesaving applications.

• The controller is not designed for use in applications where their failure may lead to significant

loss of property or health of humans or animals.

• The Information given herein is believed to be accurate and reliable. However, users should

independently evaluate the suitability of and test each product selected for their own

applications.

• The products described herein are intended for integration. Users must get all required

certifications and registrations for the resulting assembly including for the products described

herein.

• We reserve the right to make changes to the products described herein without notification. A

new specification replaces any previous ones.

• See Theia’s standard terms and conditions for warrantee and other information.

Software

Installation

Theia provides a simple control program for interacting with the control board. This application is

intended to be used as a test and demonstration program for controlling the lens motors.

This software (installation and use) and the driver board are intended to be used by a skilled person in a

laboratory or industrial setting. This is not intended to be a fool-proof consumer electronics ready

controller.

Download and unzip the motor control program to a folder that is not system protected such as

C:\Users\yourAccount\AppData\Local\Theia. Be sure to copy a short cut to your desktop for easy access

to the test program.

For initial setup the serial port controller may need to be configured with these following steps. For

Windows:

Summary of content (13 pages)

PAGE 1
Theia lens motor controller instructions This lens control board can be used with Theia Technologies® motorized lenses that use a P-iris. Supported lenses TL936P R4 TL936P R6 TL1250P R4 TL1250P R6 TL410P R4 TL410P R6 Two versions of the board are available: one supports the photo interrupter limit switches of the -R6 lenses, the other version does not.
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Theia lens motor controller instructions 1. 2. 3. 4. Connect USB cable between the lens control board and computer with Windows 7/10 Open the "Device Manager" Expand "Universal Serial Bus controllers" and open "USB Serial Converter" In "Advanced" tab, check "Load VCP" (Checkbox must be checked) 5. Click “OK” to save the settings 6. Disconnect the USB cable then reconnect the USB cable. 7.
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Theia lens motor controller instructions 10. Click “OK” and “OK” again. Close the device manager. Your control board should now be setup with the COM port that was selected. Run the demonstration controller software Start the LensControl software. Select the correct COM port from the drop down list and “connect” to the motor control board. The configuration settings may need to be adjusted for your lens. Click on “configure” to bring up the parameter limits. Theia Technologies® motor control v.
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Theia lens motor controller instructions Check the datasheet of the lens for maximum speeds for zoom and focus. In general, these maximums should be about 1000pps. Be sure to click “write” to store the changed values before closing the configuration window. Theia Technologies® motor control v.
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Theia lens motor controller instructions Hardware specification 1. Features: • • • • • • • • supports Theia Technologies’® lenses like TL936, TL410, and TL1250 controls P-iris, focus, zoom and IR cut filter motors reads photo interrupter limit switches for zoom and focus supports USB, I2C, SPI and LV-TTL-UART small size of only about 2.4” x 1” (60x25 mm²) over-current protection over-temperature protection single 5V supply (via USB or pin connector) 2. Ratings and parameters 2.
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Theia lens motor controller instructions 3. Connectors 3.1. USB (J1) Micro USB connector able to supply and control the board via a single cable. This connector interfaces with a FTDI®* FT200 USB to I2C bridge chip and uses drivers available for that chip. That way this interface appears as a serial port under some major operating systems. General compatibility is USB 2.0 but please refer to the datasheet of that chip to get full information about its features and compatibility.
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Theia lens motor controller instructions The I2C signals have 4.7 kOhm pull-up resistors on board. Speeds up to 400 kBaud are supported. ESD protection is provided to these signals by Littelfuse®** SP724AHTG clamping diode arrays. Please see its datasheet for details. Similar boards with I2C voltage level translation to 1.8V or 3.3V are available. */ Molex is a trademark of Molex LLC, USA **/ Littelfuse is a trademark of Littelfuse Inc., USA 3.3.
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Theia lens motor controller instructions ESD protection is provided to these signals by Littelfuse®* SP724AHTG clamping diode arrays. Please see its datasheet for details. 3.5. Reset (JP1) Pin 5 of JP1 (see above) is an active-low reset input to the board. It has a pull-up resistor of 4.7 kOhm. ESD protection is provided to it by a Littelfuse®* SP724AHTG clamping diode array. Please see its datasheet for details. */ Littelfuse is a trademark of Littelfuse Inc., USA 3.6.
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Theia lens motor controller instructions 4. Software 4.1. Overview A simple control software example is provided for testing and demonstration. That software is given “as is” in order to help with getting started and testing. The user can further integrate communication with the board into your own program. In addition to basic stepping commands there are commands which set device parameters by writing values to a permanent memory on the board. There is the firmware update mechanism.
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Theia lens motor controller instructions 4.3.1.
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Theia lens motor controller instructions Command ID CR Command ID: 0x76 Read Firmware Version CR: 0x0D End of Command marker Answer after the command was executed successfully: Bytes: Answer ID Version 1 Version 2 Version 3 Version 4 Answer ID: 0x76 Firmware Version Version [1..5]: ### Values identifying the installed firmware version CR: 0x0D End of Answer marker Version 5 CR 4.3.3.
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Theia lens motor controller instructions Answer ID: 0x67 Motor Setup Motor ID: 0x01 0x02 0x03 0x04 Focus Zoom Iris IR-cut filter Motor Type: 0x00 0x01 Stepper motor DC motor Use left stop: 0x00 0x01 No Yes If this is 0x00 command 0x73 will not work. Use right stop: 0x00 0x01 No Yes Currently only the left end point switch is supported. Steps: ### Max. number of steps: (256 * MSB) + LSB (The board does NOT keep track of the position) Min. Speed: ### Min.
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Theia lens motor controller instructions Min. Speed: ### Min. steps per second: (256 * MSB) + LSB Max. Speed: ### Max. steps per second: (256 * MSB) + LSB CR: 0x0D End of Command marker Answer after the command was executed successfully: Bytes: Answer ID Status CR Answer ID: 0x63 Motor Setup Written Status: 0x00 0x01 Success Wrong Motor ID CR: 0x0D End of Answer marker Theia Technologies® motor control v.