This is a bit of a interesting project I've been working on. We have come into possession of a Nachi 8608 six axis robotic arm. (picture below)
The robot was built in 1988, so as you imagine the controls are a bit old, they came in a huge cabinet with four layers of circuit boards, ruffly 4' x 2' stuffed with DIP logic, EPROM, Motorola uC etc...
We figure switching out the controls is a must, but we would like to save the motors, encoders and possibly the drives. Unfortunately there is zero documentation on any of these things. Even the nameplate data has been rubbed off on most of the parts.
Drives:
On these drives we have all the power connections on the left side, from top to bottom:
-Input power (100VAC)
-Motor connection, does anyone know what this picture means? I've never seen anything like it. My best guess is center tapped DC or AC w/ earth ground.
-Earth Ground
-P.S.U, I have no idea what that could mean.
On the right we have three unknown connectors and pots for adjustment.
Motors:
Mostly a mystery other then the data I can partially read from the nameplate, they also have 24VDC breaks.
Encoders:
The only thing that I've concluded from these is that they are absolute encoders. As well, no documentation.
I figured I would share. If anyone has any information or suggestions that would be appreciated. Other then that, I hope your having a nice day
The robot was built in 1988, so as you imagine the controls are a bit old, they came in a huge cabinet with four layers of circuit boards, ruffly 4' x 2' stuffed with DIP logic, EPROM, Motorola uC etc...
We figure switching out the controls is a must, but we would like to save the motors, encoders and possibly the drives. Unfortunately there is zero documentation on any of these things. Even the nameplate data has been rubbed off on most of the parts.
Drives:
On these drives we have all the power connections on the left side, from top to bottom:
-Input power (100VAC)
-Motor connection, does anyone know what this picture means? I've never seen anything like it. My best guess is center tapped DC or AC w/ earth ground.
-Earth Ground
-P.S.U, I have no idea what that could mean.
On the right we have three unknown connectors and pots for adjustment.
Motors:
Mostly a mystery other then the data I can partially read from the nameplate, they also have 24VDC breaks.
Encoders:
The only thing that I've concluded from these is that they are absolute encoders. As well, no documentation.
I figured I would share. If anyone has any information or suggestions that would be appreciated. Other then that, I hope your having a nice day