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Author Topic: Help! Panasonic Servo drive and ESS  (Read 8941 times)

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Re: Help! Panasonic Servo drive and ESS
« Reply #10 on: May 21, 2016, 10:33:28 AM »
Nice one, will test when I get the connectors in the post, what would you recommend - cat5 cable? Have plenty of that lying around, maybe upgrade to shielded cable when I know it's working?

Cheers Lewis  ;D :D

Offline Hood

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Re: Help! Panasonic Servo drive and ESS
« Reply #11 on: May 21, 2016, 03:50:51 PM »
Cat5 should work as long as you keep the twisted pairs correct, example,  have A+ and A- on one pair, B+B- on another etc. Shielding however  shielding is always a good idea.

Hood
Re: Help! Panasonic Servo drive and ESS
« Reply #12 on: May 21, 2016, 04:57:35 PM »
Thanks for the advice again Hood, decided I'm going to use RJ45 connectors attached to the D type connectors with CAT7 shielded ethernet cables after I have tested it, that way I will have neat connectors on the side of the drive casing  ;D
Re: Help! Panasonic Servo drive and ESS
« Reply #13 on: May 22, 2016, 07:32:47 AM »
Okay I ordered some 3M volition cat7 installation cable, got it dead cheap at £4 for 10m, gonna scrap the idea for connectors and just use this for the data cables, has an external shield for the 4 pairs and each twisted pair has its own shielding, for the motor power I think I have seen some shielded 4 core cable lying around at work, will post pics when I get all the stuff.

 ;D ;D ;D

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Re: Help! Panasonic Servo drive and ESS
« Reply #14 on: May 22, 2016, 08:46:38 AM »
Sounds reasonable enough, cheaper than the cable I usually get, it  is 6 pair shielded, here it is.

http://www.ebay.co.uk/itm/331323457951?_trksid=p2060353.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT

Hood
Re: Help! Panasonic Servo drive and ESS
« Reply #15 on: May 22, 2016, 10:12:08 AM »
Think it's left over cable this guy was using must be trying to get rid of it, link here: http://www.ebay.co.uk/itm/222098158732

Regards Lewis  ;D
Re: Help! Panasonic Servo drive and ESS
« Reply #16 on: May 23, 2016, 04:38:26 PM »
Threw together a quick test board whilst I wait for the cable components to arrive to make sure everything is working fine added a pic below, got a nice fanuc lathe MPG just need to figure out how to implement in mach  ;D ;D
« Last Edit: May 23, 2016, 04:44:12 PM by BoronNitride »

Offline Hood

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Re: Help! Panasonic Servo drive and ESS
« Reply #17 on: May 23, 2016, 05:16:31 PM »
Any idea what the MPG (hand wheel) output is? Hopefully it will be 5v square wave differential.

Hood
Re: Help! Panasonic Servo drive and ESS
« Reply #18 on: May 23, 2016, 05:25:32 PM »
The MPG output doesn't have a line driver it is A B single ended 5v, had it hooked up to an arduino awhile back, it was 100ppr (400 quadrature), just A B +5v GND - and wires for the switches (XZ - x1x10x100 and an LED),

Also have a circuit that uses an encoder on the axis and displays the position on a row of 7 segment displays for easy manual use (using a tiny monitor for my control panel don't want to have to squint to see figures, also they look nice!) curious about the torque and speed outputs on the servo drive as I have some red yellow green bargraph displays that would look sexy for axis load.

Regards Lewis  ;D
« Last Edit: May 23, 2016, 05:34:59 PM by BoronNitride »

Offline Hood

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Re: Help! Panasonic Servo drive and ESS
« Reply #19 on: May 23, 2016, 05:59:57 PM »
Thats ok, I prefer differential but single ended should work fine as long as you shield or do not have in a noisy environment.

It will depend on the output of the drive, the Allen Bradley drives I have on a few machines will output  +/- 10v which you can scale to whatever you want. I fitted a meter to my lathes spindle motor to act as a load meter and it works well.
I was at one point trying to get the output so that it was only 0-10v so that I could input via my PLC to Mach but wasn't clever enough  so gave up :D

Hood