RE: [CAD_CAM_EDM_DRO] Re: Thanks - Servo Motor Make Up -w- Follow Up Question

Doesn't generate a lot of heat in the DRIVE, but the amount of heat
generated in the MOTOR will be the same-it will be proportional to the
amoiunt of power needed to keep the motor in place.

Andy Wander
Verrex Corporation


-----Original Message-----
From: vavaroutsos [mailto:pete@...]
Sent: Monday, June 14, 2004 3:22 PM
To: CAD_CAM_EDM_DRO@yahoogroups.com
Subject: [CAD_CAM_EDM_DRO] Re: Thanks - Servo Motor Make Up -w-
Follow Up Question

JD, most DC brush drives change the width of the output pulses to
adjust the average voltage seen by the motor instead of the
amplitude. This way the output stage of the drive is full on or off
and does not generate a lot of heat.

~petev

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "John Delaney"
<jdelaney2@s...> wrote:

> So assuming the servo system is set up and working correctly. If I
> were to tell software to keep the motor at some position 'A' and I
> placed a constant load on the motor to try to move from 'A' the
> result would be a series of pulses coming from the drive to the

motor

> of sufficient amplitude to keep the motor at position 'A'. Yes? I
> imagine it would bounce within the limits of the encoder too?
>
> Then the motor is eventually going to get pretty hot if the load is
> great enough?
>
> Thanks,
> -jd