Re: [CAD_CAM_EDM_DRO] stepper amperage/resistance

AW,

If you are going to use them with the Gecko drives they all may work
equally.

The Gecko drive has a maximum power supply voltage of 80 volts and a minimum
of 24 volts. It also has a maximum current of 7 amps.

The difference would be the power supply voltage and the current setting on
the Gecko drive.

To calculate the power supply voltage you would multiply the name plate
voltage by 20 to 25. For example if the voltage was 3.43 VDC then a good
power supply voltage would be 68 Volts.

Bob Campbell

----- Original Message -----
From: "awallin25" <anders.wallin@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Sunday, May 18, 2003 2:22 PM
Subject: [CAD_CAM_EDM_DRO] stepper amperage/resistance


>
> In a catalog from a local supplier of steppermotors I can see the
> Sanyo Denki H-series motor 103 H7126 (nema23) supplied in three
> different versions, -0140, -0740 and -1740
>
> The only specifications that differ are the phase resistance,
> inductance and current.
>
> Currents are 0.75, 2.2 and 4 A
> resistances 8.6, 0.9 and 0.48 Ohm
> indcutances 19, 2.2 and 2.2 mH
>
> holding toruqe is the same for all of them, 165 Ncm.
>
> Is there any difference between this motors when using them for cnc
> purposes ?
>
> The stepper drive obviously needs to limit the current to a
> different value. Maybe a stepperdriver for the lowest current model
> is cheaper than for 2.2 or 4 A ?
>
> Any other differences ? What about voltage ??? how is "motor
> voltage" calculated from these figures ? how is a suitable driving
> voltage calculated from that ?
>
> thanks for any answers,
>
> AW
>
>
>
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