CAD CAM EDM DRO - Yahoo Group Archive

Re: [CAD_CAM_EDM_DRO] Rectifiers - Stay or Go?

Posted by Les Newell
on 2006-01-12 05:28:01 UTC
Hi Bob,

By your description I would say they are probably chokes to increase the
motor inductance. Some older SCR drives needed a high motor inductance
to work properly. With Rutex drives just connect straight to the motor.

Les

jacoby01 wrote:

>I'm in the midst of converting a Bridgeport Series II Delta Dynapath
>10 CNC mill to Rutex / Mach2. As I disassembled the electronics I
>discovered a fairly large rectifier on each of the Baldor servo
>motors. The rectifiers are built by Powertran and they look like
>small (i.e. 24V; 5 amp) transformers. The rectifiers are the last
>component before the motor itself - meaning that the rectifiers are
>located after the old servo drives. Question: Should I leave these
>in my conversion - wire them back identically - i.e. after the Rutex
>2020 drives?
>
>Additional information: The old system appears to run on
>approximately 116 VDC (hence the bigger Rutex servo drive) and the
>specs on the motor are as follows:
>
>



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Discussion Thread

jacoby01 2006-01-12 04:44:39 UTC Rectifiers - Stay or Go? Les Newell 2006-01-12 05:28:01 UTC Re: [CAD_CAM_EDM_DRO] Rectifiers - Stay or Go? Dan Mauch 2006-01-12 08:27:10 UTC Re: [CAD_CAM_EDM_DRO] Rectifiers - Stay or Go? jacoby01 2006-01-13 05:29:02 UTC Re: Rectifiers - Stay or Go?