i want to create rotating device using 755 motor,A Relay is a mechanical device, and is subject to wear,
and has a finite number of operations that it is designed to endure.
If this project is intended to run continuously,
it will eventually fail, or become intermittent,
especially if the Relay is not extremely over-specified for
the proposed Load that will be expected to withstand.
Reversing the polarity on a running Motor will cause a tremendous Current-Spike
which will quickly destroy the Relay's Contacts, and the Brushes inside the Motor.
More specific information is required regarding what this project is supposed to accomplish overall,
how reliable it must be,
the specifications of the Motor that will be switched,
exactly how long between reversals,
the mechanical-Load that the Motor is moving,
etc., etc., etc..
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i want to create like this on small scale. it consumes 20W of power. i would like to use with 12v power supply.What is the "Locked-Rotor-Amps" of the 755-Motor at the Voltage that You intend to use ?
Please describe, in detail,
( pictures would be the best ),
the Mechanical-Load that the Motor will be turning.
Will the Motor be attached to ...............
a Gear-Box ?, a Fan/Propeller ?, Wheels on a small car ?, Belt and Pulleys ?
Does the Motor need to be stopped before hitting an object,
or reaching "end-of-travel" on a rail ?, or, is it driving a "Linear-Actuator" ?, or a "Screw" ?
ALL OF THE DETAILS ARE IMPORTANT,
for a project that will perform as expected, and have reliable-operation.
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its manually controlled by swich and also module is from AliExpress so they don't ship to india. thank you by the way.This may do the trick for you, Aliexpress.
It has stop start PB's and pot for delay.
View attachment 321280
ok so if i will use simple gear motor. but can circuit sustain current that you have provided in diagram?The 755-Motor that You have chosen is a high-quality, very HIGH-RPM-Motor.
It would be a better plan to use a "Gear-Motor", with a much lower RPM-range,
probably less than ~1000-RPM @~12-Volts.
The Electronics part of the project is relatively easy, but not particularly cheap,
( probably around ~$30.oo USD )
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by Aaron Carman
by Robert Keim
by Aaron Carman