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Servo motor drive circuit pdf

servo motor drive circuit pdf

I made a dial for my black & decker trimmer manual tuner controller so that I could remember tuner settings for easier access.
Get the PDF, the "High Limit" and "Low Limit" pots are adjusted so that the range of the "Set Position" pot (about 300) maps to exactly one full rotation of a 10 turn pot.
You need a split supply to run this circut so that the motor can turn in both directions.
Slowly increase step speed until you get a picture similar to one of the three above, and then do the following: 1) overdamped: Decrease damping or increase gain 2) critically damped: Do nothing; youre there 3) underdamped: Decrease gain or increase damping current limit: The.Cutters, Vinyl Sign Cutters, CNC Plasma Cutters, and CNC Foam Cutters.Those of you who know motor control may point out that you can't control a DC motor using just proportional control without under or overshoot.Connect the positive (red) lead of your power supply to this terminal.The vibration makes stepper motor noisier than DC motor.If instead CCW is preferred, then: 1) Reverse the motor and - leads (terminal 3 with terminal 4) 2) Reverse the encoder channel A and channel B leads (terminal 8 with terminal 9) terminal 5 ERR / RES This terminal functions as an error output.With this scheme, I set the "High Limit" and "Low Limit" pots to give one full rotation.If you used a voltmeter, then remove it from the drive.G320 Revision 7 Manual, last Update: July 15, 2010, thank you for purchasing the G320 drive.The rated voltage will produce the rated winding current at DC: but this is mostly a meaningless rating, as all modern drivers are current limiting and the drive voltages greatly exceed the motor rated voltage.The trimpots are single-turn so be careful not to over-torque them.My dial goes from 1 to 12 to match the number of switch positions on the inductor.Lower values give lower gain if the circuit seems prone to breaking into oscillations.The latter will require a gearing modification for the feedback pot, so that the entire range of the roller inductor can be accessed with only a 10 turn resistor.Though they are more expensive, they do have a higher power density and with the appropriate drive electronics are actually better suited to the applicationcitation needed, however price is always an important factor.The limit pots can be set symmetrically (the same resistance but they don't have.If you increase gain (greater stiffness then increased damping is needed as well to restore critical damping.You can change the gain by changing from the 1M resistor in the circuit to some other value.