April 24, 2019, 10:13:30 PM
Robotforum | Industrial Robots Community

 lose mastering

Author Topic:  lose mastering  (Read 245 times)

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February 05, 2019, 09:56:44 AM
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Robotmey


Hello all,

I have a problem with my KUKA VKRC1 controller that it was OK till last week. When I turn the controller off, PC suddenly shuts down and robot lose its mastering. I changed the batteries with new one but didn’t solved the problem.

Can anyone help?
« Last Edit: February 05, 2019, 10:13:49 AM by Robotmey »

Today at 10:13:30 PM
Reply #1

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February 05, 2019, 02:17:21 PM
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SkyeFire

Global Moderator
After installing the new batteries, did you ensure the cabinet stayed powered up for at least 12-24hrs to charge the batteries, before turning off the power?  When you turned off the cabinet, did the controller take time to finish powering down, or did it simply "die" instantly?

With the new batteries in place, did the robot throw any alarms about "buffer voltage" during powerdown?

If the batteries are definitively not the issue, then the most likely suspect is the RDC card.  The EEPROM on the RDC card has a large but limited number of read/write cycles, and any (V)KRC1 is probably more than 20 years old at this point.

February 06, 2019, 07:39:06 PM
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Robotmey


Thanks for your reply skyfire,

yes i am pretty sure  the batteries are completely charge.

 after switching off ,controller die instantly and it is my main problem.

February 07, 2019, 03:55:06 PM
Reply #3
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SkyeFire

Global Moderator
If the controller shuts off instantly from the main switch, that's usually a sign that the batteries are not charged.  Possibly the charging circuit is defective.


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