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Re: 3 Phase to 1Phase conversion - braked motors


 

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Brian,?
Mostly because I am not really up to date on machine electrics and I tend to keep electronics to a minimum in the workshop.
Thanks for the pointer I will investigate more tomorrow.?


From: [email protected] <[email protected]> on behalf of Brian Lamb <blamb11@...>
Sent: 26 July 2021 19:48
To: [email protected] <[email protected]>
Subject: Re: [FOG] 3 Phase to 1Phase conversion - braked motors
?
My question is why? A VFD will get you three phase and braking and eliminate any existing wiring on the machine. I just don¡¯t understand what you are trying to do...

Brian Lamb
blamb11@...
www.lambtoolworks.com




On Jul 26, 2021, at 10:58 AM, Paul Curme <paul.curme@...> wrote:

Dave,
It is an FB450 I believe it is DC injection Braking; the machine is in storage and i will have to dig it out to check.
I've converted machines before but never one with braking, ordinarily I would fit a dual capacitor motor (Capacitor start, Capacitor Run) to something with such a heavy starting load but the centrifugal switch on the back of the motor means mechanical braking isn't an option.
A couple of suppliers have told me that DC braking isn't compatible with dual capacitor motors which is odd as i'm sure thats what is fitted to the combination machines.

Regards

Paul


From: [email protected] <[email protected]> on behalf of David Kumm <davekumm@...>
Sent: 26 July 2021 15:21
To: [email protected] <[email protected]>
Subject: Re: [FOG] 3 Phase to 1Phase conversion - braked motors
?
I missed what model bandsaw but is the brake injection or mechanical?? A mechanical brake on the shaft or motor fan that engages when the power is cut is a different animal and requires a motor than can accept the mechanism.? Dave


From: [email protected] <[email protected]> on behalf of Paul Curme <paul.curme@...>
Sent: Monday, July 26, 2021 3:06 AM
To: [email protected] <[email protected]>
Subject: [FOG] 3 Phase to 1Phase conversion - braked motors
?
Machine in question is a bandsaw, so nothing fancy
If you want to convert a 3-phase machine that has a braked motor,?
can you change it to single phase without needing to change the electronics or do you need to change everything?

Thanks?

Paul

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