Messages

11

General Mach Discussion / Re: AC vs DC Servo Motors

« on: August 19, 2008, 04:52:04 PM »

I have the one with the Profi Bus.  The only part number I see is Ecodrive Cs with EC M01 1-PB01-NN attached to the side.  Here is the web site....


www.boschrexroth.com/.../en/products/brc/ProductDocumentation/CurrentProducts/Drives/EcoCs/29575802.pdf

Thx

12

General Mach Discussion / Re: AC vs DC Servo Motors

« on: August 19, 2008, 04:39:58 PM »

I found this sight that has a ac servo driver similar to the gecko but for AC servo motors.  Is there an advantage or disadvantage using AC or DC?  Here is the site....

www.logosolinc.com/download/ls-182.pdf


Thx

13

General Mach Discussion / Re: AC vs DC Servo Motors

« on: August 19, 2008, 04:25:58 PM »

Maybe I am stuck on using Geckos, but is there anything out there that will control these AC servos and use Mach3 to control it?  I am assuming there are AC controllers out there that use step and direction similar to the Geckos.  I think I am stuck on the Geckos because of the price and the amount of support out there for information.  I also have a Rexroth Ecodrive Cs, but I am not sure how to hook it up for step and direction.

14

General Mach Discussion / Re: AC vs DC Servo Motors

« on: August 19, 2008, 02:59:00 PM »

I have three different brands.

Reliance electric Y-2012-1-H00AA
IDC Model B23-B-CO
Rexroth MSM030C-0300-NN-MO-CC0

They all have 4 pins coming from the motor.  The line diagram for the Gecko controller shows only 2 wires going to the motors.  If I were to use these motors, which of the 4 wires are wired to the Gecko controller?

thanks

15

General Mach Discussion / AC vs DC Servo Motors

« on: August 19, 2008, 12:30:56 PM »

I just picked up some servo motors from an industrial excess site.  All the information I looked up stated they were AC servo motors or at least the controller was AC.  Is there a specific motor that is made for either AC or DC voltage?  Can they be used for either AC or DC depending on the controller used?  Each of the motors have 4 pin connections coming out of them, where all the schematics for the DC hookup show only two wires for the hookup.  Can someone enlighten me on servo motors and if I can used the ones I have for a DC application?

thanks.

16

Competitions / Re: ******Guess and win a G100 Grex******

« on: May 22, 2007, 10:12:10 AM »

I am going with 2,774,361

17

General Mach Discussion / Re: Relay to Router

« on: May 24, 2006, 01:05:32 AM »

Thank you chad for the simple diagram.  I worked on it for awhile trying to get the router to turn on.  I measured across the relay from the computer logic side and found the volts only a little over 2 volts.  I kept reducing the resistor size (lower ohms) to get a higher voltage across the logic signal, but the router still wouldn't turn on.  I finally switched the wires on the logic side and the router turned on.  I purchased a relay with no writing on it, so I didn't know the polarity mattered on the relay.  I ended up using a 1K ohm resistor and 5volts from the computer power supply.  All is working now and now I am moving onto my limit and home switches.  Thank you!!!!!!!!

18

General Mach Discussion / Re: Relay to Router

« on: May 22, 2006, 12:20:36 PM »

I am just learning about pullup resistors so I don't fully understand the connection method as suggested.  Do I connect one lead of the resistor to the relay screw and connect the other lead of the resistor to ground?  It would be nice to have a simple schematic of using a pullup resistor on the relay setup.

19

General Mach Discussion / Relay to Router

« on: May 20, 2006, 08:56:49 PM »

I am slowely getting my 3 axis mill complete.  I am now at the point of hooking my router up to a relay.  I purchased a model number CY3303 relay with the following specs......    120 VAC 25 AMP  3-32 vdc (logic) 3 ma.  I connected everything up to activate from pin #14.  When I activated the spindle from mach 3 no worky on the router.  I measured the voltage across the logic input and found only 1 volt.  I removed the wiring from the relay and then measured the voltage and it came in at 5 volts.  Apparently hooking up to the relay draws too much.  I put a 9 volt battery across the logic connections and the router turned on, scaring the living daylights out of me.  Is there anything I can do with the current relay to make it work or do I need to purchase a different kind?