Q:I made a three axis CNC router with three CD drives. I was going to make a stepper motor controller board for the CNC but I noticed that the motors are NOT servo motors instead they are hobby motors(the motors with two wires) So is there a schematic anyone knows of that controls a hobby motor with a parallel port? I WILL PICK A BEST ANSWER!!! thank you!

If you want this router to work at all you need micro stepping and cheap easy plans don't offer this. The plans that do end up costing a lot in parts so it's better to just buy a kit. If you have money you can get good controllers from rutex and gecko drives.

Q:The difference between DC motor and AC motor

Master formulas n1=60f/P, S= (N1-N), /n1, n= (1-S), 60f/P, and understand their meaning (very important), and be able to flexibly use these formulas for calculations. Also remember: the slip rate of the motor at normal load is approximately SN, 0.01-0.06. The examples in the book should be emphasized.

Q:Hairdryers are being advertised as having a AC motor or DC motor which on is best?

All modern hair dryers use a DC motor, whether the input to the hair dryer is AC or DC. In AC-powered hair dryers, there are a set of diodes that convert to AC voltage to a pulsating DC voltage. I've repaired hair dryers that were made in the 60's and they had DC motors too. Is the DC hair dryer one that will work from a vehicle connection? If so, it will not produce nearly as much heat as an AC-powered unit that plugs into the wall. If these are your choices, then AC powered is definitely the way to go

Q:pump specification abbseallesspumps,hmd kontro lcie04atex6152 model

A lot of motors have 6 wires for the three windings, so you can connect them as star or delta, as required with a star delta starter. The voltage ratings will tell you though. If it is a 380V, 415V, 440V etc. motor and it is connected as star it has a lot less power. If its 220 you have to figure out whether that was for a 127/220 or a 220/380 system. As a check, ((W x 1/PF) / Amps) from the nameplate gives the phase to neutral voltage, or W/A is close enough to tell. Always check the running current when you have installed a motor. Don't forget that the phase rotation may be important for a pump. If a water pump goes backwards there is steam and boiling water everywhere.

Q:torque ratings of 3 phase 480 volt ac motors controlled by vector vfd ?

A vector or even a sensorless vector VFD should be capable of operating a motor from base speed right down to or very nearly to zero speed at 150% of rated torque as calculated from the nameplate speed and power ratings. The current required to produce 150% of rated torque should not exceed 150% of the motor nameplate current. The minimum speed at which the motor can produce rated torque continuously and the maximum time that rated torque can be maintained at stall depends on the specific motor design, particularly the cooling provisions. Motors equipped with a separately powered cooling fan can typically sustain rated torque at zero speed continuously. Manufacturers of VFD rated motors usually have rating curves that show the motor torque vs. speed continuous and intermittent capability.

Q:If we will supply 220VAC to a DC Motor of rating 220VDC.

it depends on how the DC motor is modulated. Usually a DC motor needs a speed controller to initiate the commutation of the windings because DC doesn't have phases like AC. More than likely, the motor would just buzz or vibrate, but it wouldn't spin. It'd also get pretty hot or it would start arcing across the brushes because the current would have nowhere to go.

Q:Does the DC motor work the same as the AC motor?

DC motor has fast response, large starting torque and rotational speed from zero to the rated speed with rated torque available performance, but the advantages of DC motor is a DC motor because of its disadvantages, to generate performance under rated load torque is constant, the armature magnetic field and the rotor flux to maintain constant 90 degrees, this by brush and commutator. Carbon brush and commutator motor rotates in sparks, so in addition to cause toner component damage, use is restricted.

Q:My husband accidentally used a whole can of motor engine degreaser to clean our window ac unit.

Well pull it out of the window and take it outside, because the only way to really clean it it to remove the outer cover and hose off the coils.

Q:what is the formula for torque in ac motor?

A variable-frequency drive (also termed adjustable-frequency drive, variable-speed drive, AC drive, micro drive or inverter drive) is a type of adjustable speed drive used in electro-mechanical drive systems to control AC motor speed and torque by varying motor input frequency and voltage

Q:I have a 90v DC electric motor I would like to run with 110v electricity. It was running off 110v when it was inside a wheel balancer. The motor came out of a wheel balancer and I need it for a specialized fan application. What kind of converter do I need to not only run it with 110v, but also make it variable speed? Any suggestions?

90v Dc Motor