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View Full Version : Diagram of Vexta Pk296A1H- SG3.6 and Pk266-02A



tomp
01-21-2011, 02:07 AM
My old Prt controller burn out. I will use Geckodrive G540 with mach3, I can't find diagram of motors to connect wires. Please help.
Tom,:confused:

ken_rychlik
01-21-2011, 09:54 AM
TomThese are the folks that make those motors.You can search their site and they have manuals and wiring information.http://www.orientalmotor.com./home.html

gc3
01-21-2011, 11:47 AM
http://www.talkshopbot.com/forum/showthread.php?t=332&highlight=g540&page=2

see post 4

richards
01-22-2011, 10:15 AM
The PK296A1A-SG3.6 and the PK266-02 motors should both have six conductors exiting the motors. The Black/Yellow/Green wires go to the 'A' coil and the Red/White/Blue wires go to the 'B' coil.

Use the Black/Yellow wires from the 'A' coil and the Red/White wires from the 'B' coil. By doing that, you'll be wiring the motor half-coil, which will give you much better performance with the Geckodrive G540.

Use a 35 to 48VDC power supply. The PK266 motor, when wired half-coil has 2.2mH inductance, and 32 X SQRT(2.2) = 47.5VDC. The PK296A1A-SG3.6 motor has 7.7mH inductance and 32 X SQRT(7.7) = 88V, but the G540 must be restricted to 50VDC maximum. (The higher the voltage, the hotter the motors will run. The motors are rated to run at 80-C, so they can produce a lot of heat before the insulation is damaged.)

Use a 1.5K current limit resistor on the G540 for the PK296A1A-SG3.6 motor and a 2K current limit resistor on the G540 for the PK266-02 motor.

If the PK296A1A-SG3.6 motor only has the Black/Green and Red/Blue wires, you'll have to wire the motor bipolar series. It will have 30.8mH inductance meaning that it is not suited for use with the G540. Even when used with a G201x or G203v stepper driver, that motor, when wired bipolar series will never match the performance that you could get with a PK296A2A-SG3.6 motor. The inductance on the A1A motor makes the motor sluggish when used with low voltage power supplies.

tomp
01-29-2011, 02:44 AM
Thank you very much for all of your helps.

gc3
01-29-2011, 04:29 PM
...well what did you end up doing...post photos pls.