By Cyrielle Marjolaine. Motor. Publised at Thursday, June 29th 2017, 01:05:11 AM. The effect of setting the motor current to twice the rated value. This abuses the motor because it will dissipate four times as much heat as setting the current to its proper value. The actual increase in low-speed torque is considerably less than double because of magnetic saturation of the motor iron.
By Sasha Sara. Car Wiring. Published at Friday, February 09th 2018, 00:03:30 AM. As we stated, always use closed terminals. If your terminals have the plastic cover, remove that. Always solder the terminal where the wire end is installed. Never crimp the terminal and expect the wire to stay there forever. It won’t.
By Alix Loane. Motor. Published at Monday, January 29th 2018, 23:13:59 PM. It is recommended the motor current always be set at the rated value also to get the best microstep smoothness. Setting the current higher degrades the linearity of the motor and causes microstep bunching and attendant low-speed vibration.
By Madeleine Catherine. Motor. Published at Monday, January 29th 2018, 18:05:09 PM. An ideal step motor would have zero mechanical friction, its torque would be proportional to ampere-turns and its only electrical characteristic would be inductance. Ampere-turns simply mean that torque is proportional to the number of turns of wire in the motor’s stator multiplied by the current passing through those turns of wire.
By Charlotte Myriam. Car Wiring. Published at Sunday, January 28th 2018, 14:00:15 PM. It just takes a little more time to duplicate your wiring into a spare wiring harness. Make two or three if you like, the parts are very inexpensive. Also keep spare switches on hand in your race trailer so that if one breaks or fails to function, you’ll be able to replace it quickly.
By Madeleine Catherine. Car Wiring. Published at Friday, January 26th 2018, 20:43:45 PM. If your terminal is attached by a nut to a post, use lock washers and if it is a very important connection, and most are, use blue Loctite on the post. Many electrical failures are random and due to loose connections that are hard to trace. A quick look and the connection looks good, but if it is loose, it will cause an interruption of the current flow periodically.
By Madeleine Catherine. Motor. Published at Friday, January 26th 2018, 03:18:35 AM. In the previous section it was shown that motor torque varies inversely with speed. This then is the motor’s natural speed-torque curve. Below a certain speed, called the corner speed, current would rise above the motor’s rated current, ultimately to destructive levels as the motor’s speed is reduced further.
By Alix Loane. Motor. Published at Tuesday, January 23rd 2018, 22:56:20 PM. Ideally, you will be connecting motors per an installation drawing. In that case, it’s a matter of correctly identifying the motor leads by number and connecting them per the drawing. Don’t try to “wing it” when replacing a motor, working with OEM equipment, or installing a motor when such drawings have been provided. But there’s a catch. We’ll get to that in a moment.
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