If your spindle motor fails the test, you may want to make sure the problem is not with the connector, which may have coolant on it that’s interfering with your results.If your reading is infinite or significantly over 2 Ohms, you probably have an open. If you get a reading of 0, you have a short between phases. Each time, you should get a reading of around. Test T1 to T2, T2 to T3, and T1 to T3.How to Test Your Spindle Motor for Open or Short in Windings This should allow you to isolate your problem. While testing, make sure the leads on each end are not touching other leads or anything else. Assuming you did not get an infinite reading, disconnect the motor from the cable and test each separately.If you get a zero reading or any continuity reading, you have either a motor problem or a cable problem. If the reading is infinite, your motor should be fine. Check each wire, including T1, T2, T3 and the ground wire.Start by completely disconnecting the spindle motor from all power sources.How to Test Your Spindle Motor for Short to Ground We recommend this meggar test only as a start to figuring out what could be wrong with your motor and always follow with a surge test. Here is a basic breakdown on how to check motor windings with a multimeter, keep in mind this is just a quick way to determine if your motor is in need of further testing or a full rewind. If you have access to a multimeter, it’s easy to determine if you have an immediate problem. If you think you may have bad spindle motor windings, it’s important to know for sure. The frequency of AC is measured in Hertz (Hz), which is typically 60 Hz for electricity in residential and business purposes.How to Test Motor Windings with a Multimeter In AC, the flow of current periodically alternates between two directions, often forming a sine wave. DC can flow not only through conductors, but semi-conductors, insulators, or even a vacuum.ĪC (Alternating Current). DC can be a continuous flow of current in one direction. Plastic, wood, and air are samples of insulators, inhibiting the movement of electrons (high resistance).ĭC (Direct Current). Materials including gold or copper, are classified as conductors, because they easily allow flow of movement (low resistance). Resistance: Measured in Ohms (R or Ω), resistance defines how easily electrons can flow by way of a material. It is measured in Amperes (Amps), and will only flow when a voltage supply is connected. See also Wantai Stepper Motor Wiring Diagram GalleryĬurrent: Current will be the flow of electricity, or even more specifically, the flow of electrons.
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