Is it possible to move the joints of an M-20iD robot prior to be hooked up to a power supply?
Move M-20iD joints without power
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NauticalD -
April 8, 2021 at 2:04 PM -
Thread is Unresolved
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Where there's a will there's a way. If you use enough force you can try to back-drive it through the brake.
However, if you want to do it the right way and not damage your robot, you'll need a brake release box. These can be bought from Fanuc, but are expensive. Ebay will be your friend here.
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Thanks for the response PDL.
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I usually power to the brake connector (you need to have the plug with cable) and then figure out what motor you have in case of brake. Usually a simple diode bridge and it works like you wanted
It's almost free of charge, because as pdl said brake release unit is a bit expensive.
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I use a 0-60VDC @ 5A adjustable power supply with a pair of 36" minigrabber-to-banana leads.
I also use it for 24V brakes on other robots, many other voltages, and even charged my car battery in a pinch on the road and at work. You have many choices for under $80USD on Amazon and eBay.
Fanuc 90V brakes easily open at 60VDC and should stay open till under 40VDC. Neg to brake common and Pos to which ever brake. A pinout for connector RM1 will give pin numbers.
For axes 2 & 3, I suggest a strap to a hoist, fork truck, crane, etc. These axes are heavier than they look. Try axis 1 first to get used to your setup before attempting axes with stored energy.
Please be very mindful of pinch-points.
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I use a 0-60VDC @ 5A adjustable power supply with a pair of 36" minigrabber-to-banana leads.
I also use it for 24V brakes on other robots, many other voltages, and even charged my car battery in a pinch on the road and at work. You have many choices for under $80USD on Amazon and eBay.
Fanuc 90V brakes easily open at 60VDC and should stay open till under 40VDC. Neg to brake common and Pos to which ever brake. A pinout for connector RM1 will give pin numbers.
For axes 2 & 3, I suggest a strap to a hoist, fork truck, crane, etc. These axes are heavier than they look. Try axis 1 first to get used to your setup before attempting axes with stored energy.
Please be very mindful of pinch-points.
Exactly! It's also possible.
I do it similar way, but with the diode bridge - there is no need to have a stabilized power supply - it's enough a half-wave rectifier, voltage ripples don't make any problems.
Works really great, but you need to have a cable with plug, I cut it from the old robot cables - the are in a few variants, according to different motors (small ones have different connectors, also old).