New Build King Rich KRV-3000 Knee Mill with GSK AC Servos DA98B driver

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Centroid_Tech2
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Re: New Build King Rich KRV-3000 Knee Mill with GSK AC Servos DA98B driver

Post by Centroid_Tech2 »

I've attached the information about the input signals of those drives from the manual provided and a suggested hookup from the Acorn to the existing cables.
Attachments
ACORN_to_GSK980MDa_Connector.pdf
(141.87 KiB) Downloaded 17 times
DB98B_PulseDir_Inp.JPG
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dmbgo
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Re: New Build King Rich KRV-3000 Knee Mill with GSK AC Servos DA98B driver

Post by dmbgo »

So, am I getting my head around this correctly, when I ask about the "com"terminal on the Acorn board. Should the "com" terminal be connected to the Acorn power supply + or something else?
Centroid_Tech2
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Re: New Build King Rich KRV-3000 Knee Mill with GSK AC Servos DA98B driver

Post by Centroid_Tech2 »

If you connect the ACORN "COM" terminals to + power on the supply power you will short out the power supply.
All the "COM" terminals on the ACORN board are connected together on the board and are all 0V/COM.
Attachments
ACORN_COM_0V.JPG
When requesting support READ THIS POST first. viewtopic.php?f=60&t=1043

Please ALWAYS post a FRESH report. To make a report: https://www.youtube.com/watch?v=Ecvg0VJp1oQ.

(We pride ourselves on providing timely solid technical support but, without good information we may not be able to help and/or reply until such information is posted.)
dmbgo
Posts: 547
Joined: Sat Aug 15, 2020 9:21 pm
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Location: Bendigo Vic Australia
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Re: New Build King Rich KRV-3000 Knee Mill with GSK AC Servos DA98B driver

Post by dmbgo »

Thank you Centroid_Tech2, I will connect the DA98B exactly as your PDF shows, this morning. I'm already wondering why you use the DB25 connector rather than the output screw terminals, but putting that query aside, I will follow your diagram exactly and see what happens.
Thanks again
Dave
dmbgo
Posts: 547
Joined: Sat Aug 15, 2020 9:21 pm
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Location: Bendigo Vic Australia
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Re: New Build King Rich KRV-3000 Knee Mill with GSK AC Servos DA98B driver

Post by dmbgo »

Thank you Centroid_Tech2, I will connect the DA98B exactly as your PDF shows, this morning. I'm already wondering why you use the DB25 connector rather than the output screw terminals, but putting that query aside, I will follow your diagram exactly and see what happens.
I see now that "com" is clearly what I would call signal ground.
Thanks again
Dave
Centroid_Tech2
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Re: New Build King Rich KRV-3000 Knee Mill with GSK AC Servos DA98B driver

Post by Centroid_Tech2 »

You will have to find the parameter for the signal input type on the drive and set it for the step and direction as shown in the chart if it's not already set to that, which it probably isn't.
Attachments
DB98B_PulseDir_Inp.JPG
When requesting support READ THIS POST first. viewtopic.php?f=60&t=1043

Please ALWAYS post a FRESH report. To make a report: https://www.youtube.com/watch?v=Ecvg0VJp1oQ.

(We pride ourselves on providing timely solid technical support but, without good information we may not be able to help and/or reply until such information is posted.)
dmbgo
Posts: 547
Joined: Sat Aug 15, 2020 9:21 pm
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Location: Bendigo Vic Australia
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Re: New Build King Rich KRV-3000 Knee Mill with GSK AC Servos DA98B driver

Post by dmbgo »

Thanks for that piece of information as well Centroid_Tech2 . I will try to change that on the DA98B driver 1st.
dmbgo
Posts: 547
Joined: Sat Aug 15, 2020 9:21 pm
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Re: New Build King Rich KRV-3000 Knee Mill with GSK AC Servos DA98B driver

Post by dmbgo »

Just confirming that I have things correct, I will alter parameter PA04 from the factory setting of 1 to a new setting of 0. as below?

Sequence number: PA04 Name: Control mode selection Factory Setting: 1 New setting: 0
dmbgo
Posts: 547
Joined: Sat Aug 15, 2020 9:21 pm
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Re: New Build King Rich KRV-3000 Knee Mill with GSK AC Servos DA98B driver

Post by dmbgo »

For my reasoning behind this see pages 29, 51 of the DA98B manual that I posted earlier in this thread,
dmbgo
Posts: 547
Joined: Sat Aug 15, 2020 9:21 pm
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CNC Control System Serial Number: 0035FF8A7F34-0730203594
DC3IOB: No
CNC12: Yes
CNC11: No
CPU10 or CPU7: No
Location: Bendigo Vic Australia
Contact:

Re: New Build King Rich KRV-3000 Knee Mill with GSK AC Servos DA98B driver

Post by dmbgo »

Sadly both PA04 and PA14 were already set to a value of zero. I removed all of the wires that I had installed and reinstalled them as per your diagram, which happened to be the same as my original wiring. I checked with a DMM that there was continuity on all the connections that I made (I had done this before as well).
The Servo driver still works with no problems when the DA98B is connected to the 980MDa, but there is no movement when connected to the Acorn.
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