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Author Topic: Allen Bradely drives to Sanyo denki motors ?  (Read 20942 times)

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Offline BR549

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Re: Allen Bradely drives to Sanyo denki motors ?
« Reply #80 on: October 18, 2012, 03:29:40 PM »
Well I won't win BEST OF SHOW but the line driver  is together. All the boards parts, board,socket etc can from radioshack. The chips came from mouser.

(;-) TP

Offline Hood

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Re: Allen Bradely drives to Sanyo denki motors ?
« Reply #81 on: October 19, 2012, 06:07:24 AM »
Looks neat :) I would suggest you twist the diff step and dir wires into pairs (step + and Step-, Dir+ and Dir- ) though.
Hood

Offline BR549

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Re: Allen Bradely drives to Sanyo denki motors ?
« Reply #82 on: October 20, 2012, 05:14:03 PM »
OK so far I have not been able to make it work. Everything looks right(;-)

SO is there a way to test the output of the line driver ?   

Is there a way to test the inputs of the DRIVE to make sure that part works?

(;-) TP

Offline Hood

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Re: Allen Bradely drives to Sanyo denki motors ?
« Reply #83 on: October 20, 2012, 05:20:12 PM »
Scope to test the outputs. As for testing the drives inputs suppose the only way is to apply a pulse stream and see.
Hood

Offline BR549

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Re: Allen Bradely drives to Sanyo denki motors ?
« Reply #84 on: October 20, 2012, 05:48:55 PM »
SO if I apply the steps output from the BOB to the steps input on the drive pin 14/15 it should at least move?

(;-) TP

Offline Hood

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Re: Allen Bradely drives to Sanyo denki motors ?
« Reply #85 on: October 20, 2012, 05:58:44 PM »
Yes.
Do you have the Gnd reference of the Driver to the encoder Gnd pin?

Hood

Offline BR549

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Re: Allen Bradely drives to Sanyo denki motors ?
« Reply #86 on: October 20, 2012, 07:12:15 PM »
YES it goes to pin 2. I have a good set of signals going into the LD on the scope but nothing coming out I check from S+ to com and Dir+ tto com.

Back to the drawing board and get out the magnifing glasses again. I need to double double check the chip for the key location to make sure it is in correctly.

I also checked the drive by running the step lines to the drive S+ and S- and got nothing from the drive.

I also double checked the drive set and it is set to FOLLOW step and direction.



(;-)TP

« Last Edit: October 20, 2012, 07:14:01 PM by BR549 »

Offline Hood

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Re: Allen Bradely drives to Sanyo denki motors ?
« Reply #87 on: October 20, 2012, 07:17:35 PM »
Do you have the enable on the chip connected, you have to have it either connected to Vcc or Gnd depending on whether you want active Hi or Lo.Cant remember the pins will look in a bit.
Hood

Offline Hood

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Re: Allen Bradely drives to Sanyo denki motors ?
« Reply #88 on: October 20, 2012, 07:19:45 PM »
Ok its pin 4 and 12, one needs to be connected. Pin 4 to Vcc or pin 12 to Gnd.
Hood

Offline BR549

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Re: Allen Bradely drives to Sanyo denki motors ?
« Reply #89 on: October 20, 2012, 09:14:13 PM »
AHHHH NOPE I did not know about enabling the chip(;-)


OK I take that back I see on the board that pin 12 IS going to VCC

I found a WISKER hiding on the board hopefully that may have been the problem.

(;-) TP
« Last Edit: October 20, 2012, 09:17:50 PM by BR549 »