Author Topic: help~~~  (Read 10617 times)

why

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help~~~
« on: June 20, 2006, 01:31:56 AM »
anyone have idea how to do braking system of single phase induction motor using PLC?

PLC is totally new to me.  :-\

anyone?  ??? ??? ???

FQ-ONG

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Re:help~~~
« Reply #1 on: June 20, 2006, 02:00:09 AM »
Does you mean to control the speed of motor?

Thank you

why

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Re:help~~~
« Reply #2 on: June 20, 2006, 05:56:35 AM »
yea.. u got an idea?

10-Q

evanh

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Re:help~~~
« Reply #3 on: June 20, 2006, 03:33:58 PM »
Single phase motors are best left alone.  Either add an external brake or replace the motor with a three phase one and use an inverter/vector drive to speed control it.

The PLC would be used to sequence both methods but is not the device that does the physical work - that would be either some contactors or the inverter.


Evan