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All wired up, no movement :( gecko or printer port issue??

Posted by Mike Mueller
on 2005-02-21 18:57:06 UTC
Bridgeport w/sigma 42 steppers and Gecko 201s (rev C4) and TurboCNC

everything hooked up(jumper inside of Gecko for 42 motors), I'm getting some strange voltage readings which I don't think are correct or maybe they are...

for the "common" (pin 10 on Gecko), my printer cable reads 5vdc UNTIL I connect it the the Geckos, then I get 1.9vdc on all number 10 pins.

for step and dir, I get the following readings:
2-dir=.1vdc
3-step=.1
4-dir= 2.5vdc
5-step=.1
6-dir= 2.5vdc
7-step=.1

all 12 Phase pins read 37vdc (75vdc powersupply)
I have it wired in series per the procedure in the files section

6 jumpered to 5
3 connected to phase A+
1 connected to phase A-

8 jumpered to 7
4 connected to phase B+
2 connected to phase B-

[http]http://f5.grp.yahoofs.com/v1/IJIaQiV0OX_HfnU8ZIkp498P7qqmn-jNAJyjjL_s7_-u5_Oag29A481fWV4fe4gcuW3pSMehP-Bj-lmIH4X1nIHlQ7Mtm8I/SeriesII%20project/BP_Stepper_wiring.txt%5b/http]

I can only access the leadscrew on the Y due to the machine not having any manual methods of movement...with no power I can turn the leadscrew freely, but I feel a slight "step"...with power on, I have about the same resistance, but it steps much more, I can see the table "jump"

thanks,

Mike

Discussion Thread

Mike Mueller 2005-02-21 18:57:06 UTC All wired up, no movement :( gecko or printer port issue?? Mike Mueller 2005-02-21 23:29:13 UTC Re: All wired up, no movement :( gecko or printer port issue??