[slowtwitch]

Hello folks, I recently acquired an Electrocraft 1300 servo driver. In reading the manual, I saw that this unit can have a analog (+-10v) or a PWM signal (software configured) attached to the same terminal.

Here is the description from the manual....

"Dual purpose Input. Software configured.
+ Differential Command Signal Analog Input. Zero to ±10 Volt external
command signal input. The polarity of this signal controls the relative applied
direction of output motor torque, velocity, or position. Input is protected to
±24 Volt maximum.
Or
PWM Control Input. Zero to +5 Volt logic signal. TTL compatible. +24 VDC
maximum signal amplitude. 0 Volts minimum. 10K Ohm input impedance.
Positive true logic. Weighting of PWM On‐time Vs Off‐time controls the
amount of commanded torque, velocity, or position".

Being a complete newbie at the servo game, would the PWM in the above statement be the same PMW that Mach3 puts out (to control a spindle) ?? or is this step-direction????

thanks

[Al_The_Man]

Basically yes, the principle is the same for both.
Al.

[keebler303]

Check here for some detail:

http://www.cjh.com.au//PWM%20Spindle...ng%20Mach3.pdf

Matt

[Al_The_Man]

Check here for some detail:

Matt

That link shows PWM to analogue, I assume the O.P. is looking to go PWM direct into the drive, bypassing the analogue in?
Al.

[keebler303]

I suspect the useful bit of the document is the talk about setting up a PWM spindle in mach3. Once you get the PWM signal out of mach3, the hard part is done.

Matt

[slowtwitch]

That link shows PWM to analogue, I assume the O.P. is looking to go PWM direct into the drive, bypassing the analogue in?
Al.

Al your the man That's what I was hoping to do...I'll give it a whirl on the test bench.


thanks