Re: Servo motor maximum voltage rating

Hi,

I said current should be limited to the motor stall current at its
rated voltage (rated stall current). An unlimited current a higher
than motor rated voltage will result in a stall current that can
demagnetize the motor.

Mariss

--- In CAD_CAM_EDM_DRO@y..., "Peter Seddon" <peter@s...> wrote:
> One of the probelms with limiting the current to the rated current
is that
> you cannot accelerate as quickly particularly under load. This can
limit the
> performance when machining contours. Depending upon a number of
factors,
> current limit is set to between twice and five times rated current.
If there
> is a crash then the motor will not burn out immediately but will be
stalled
> with the limited current flowing. It should last like this for
probably up
> to a minute which should give time for you to cut the drive.
Alternatively
> fit a motor thermal overload.
>
> Regards Peter