Help? I am reinstalling the core software on a used Fanuc 100iB arc-mate robot (RJ3iB controller) and am at the point where it is asking if the robot has brakes only on axis 2-3 or brakes on axis 1-2-3-4-5-6. WARNING, Incorrect brake selection may result in damage to the equipment!
How do I know the difference? Thanx, Tim
2-axis brakes VS 6-axis brakes
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timmmt -
May 12, 2016 at 8:35 PM -
Thread is marked as Resolved.
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With the robot powered off can you manually move axis 1,4,5, or 6 by pushing/pulling on the arm?
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If I pull really hard on axis 5, it will move but for all the other axis, not without risk of breaking something?
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There is an extra cable to power the brake, check if your motor have three cables (encoder, motor power, brake power) or only two
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Is this your robot? On the data sheet attached below?
It looks like all 6 servomotors have brakes. You said you can move axis 5? Maybe the brake for that axis is worn and getting weak.
The data sheet is for an ArcMate robot that has brakes on all 6 motors/axes.
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Let's try that attachment 1 more time.
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There is an extra cable to power the brake, check if your motor have three cables (encoder, motor power, brake power) or only twoBase cable configurations vary. Your robot definitely has brakes on axes 2 and 3, else it would fall down, and so there must be some cable providing power to release brakes. Regardless of the number of Harting connectors visible at the robot base.
Axis 5 is only moving because you are strong.Have a look at that data sheet posted above.
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In this picture you can clearly see the brake cable on J1 motor
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Motor cable configurations also vary. Especially for the axis 5 and 6 motors on robots with small manipulators (positioner arms.)
Motor 1 has 3 cables, very true.
My opinion is that Hawk ME's method is a very reliable way to determine what motors have integral brakes. I would not trust counting cables.
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Thanks to everyone who replied! I set it for (6) axis brakes and nothing smoked yet. Now if I can only figure out that transient current that is melting chips on our process IO boards...