sinclair_keith
Member
Hi guys, this is not a plc related question, but i thought, someone might be able to help me out.
I was given a project at work;
to install vfd's to one of our 3 ton overheard cranes. using a 2 switch position pendant station. once the button is pressed to the last position it ramps up the speed. then once the button is released back to the 1st sw position it maintants that speed.
i got the design all working great. but once i consulted our crane maintance guy, he said the vfd's were out of the question for these motors, since they were tapered shaft motors. and this crane is over 20 years old.
They still want me to try and figure soemthign out to install vfd's. i spoke with Delta(the vfd manufactures) (they actually build AB's powerflex drives for them, and AB slaps their label on it, that was news to me.)
anyway, they mentioned a vector function and that i could use that for tapered shaft motors.as far as i know, ttapered shaft motors need a high voltage to start off with ? so how would a vfd work with that?
id relaly appriciate it if i got some feed back from anyone on here regardign this. or any info on tapered shaft motors.
i just finished school a few months ago and dont really have alot of expericne or knowledge, more liek a grasshopper , lol
I'd appriciate any feed back..
Keith
I was given a project at work;
to install vfd's to one of our 3 ton overheard cranes. using a 2 switch position pendant station. once the button is pressed to the last position it ramps up the speed. then once the button is released back to the 1st sw position it maintants that speed.
i got the design all working great. but once i consulted our crane maintance guy, he said the vfd's were out of the question for these motors, since they were tapered shaft motors. and this crane is over 20 years old.
They still want me to try and figure soemthign out to install vfd's. i spoke with Delta(the vfd manufactures) (they actually build AB's powerflex drives for them, and AB slaps their label on it, that was news to me.)
anyway, they mentioned a vector function and that i could use that for tapered shaft motors.as far as i know, ttapered shaft motors need a high voltage to start off with ? so how would a vfd work with that?
id relaly appriciate it if i got some feed back from anyone on here regardign this. or any info on tapered shaft motors.
i just finished school a few months ago and dont really have alot of expericne or knowledge, more liek a grasshopper , lol
I'd appriciate any feed back..
Keith
