When was the last time the 7th axis grease/oil changed? Since it's subject to heat, it could be now be a stinky, black, watery substance that has little value as a lubricant. Would Setting payload even affect the rotation of this axis? J7 it is in SubGroup 1 and not a separate group 2. I was going to try to increase the allowed amp to for that axis to see if that would effect the over currents.but that axis disturbance torque cannot be adjusted, J7 it is (****) with the alarm message Collision Detect Disabled. Increasing the gear ratio is done on controlled start?
Yea Im sure it has always run at these settings cause the fella who set it up 6 years ago hasn't been back since, the ovc alarm started occurring after adding a application that calls for heavier load to the 7th axis. Some how 2nd shift always finds a way to fault the robot and cause OVC when it is nowhere near a collision.
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THE ISSUE I HAVE NOW: If the robot is told to stop once after it has filled the ladle-(from bad machine signal) The 7th axis completely relaxes and then causes OVC alarms! How do i get rid of the OVC alarms on a ladle full of aluminum? Also moving the robot in manual, if ladle is full and the dead man is released an OVC will occur. Once i sped the trajectories up this fixed that ovc problem. I found the 7th axis was rotating to slow and caused it to fault and OVC. The alarms used to occur whenever the robot ran a certain dumping program. The 7th axis rotates one direction to fill the ladle in furnace and rotates opposite direction to pour the aluminum in mold. The robot is used in casting to pour melted aluminium into molds (a die casting robot) The robot eoat is a ceramic ladle with a 7th axis motor. SRVO-046 SERVO2 OVC alarm.įellow Robot Wranglers I am working with a Fanuc R30a R-2000ib.
FANUC Robotics SYSTEM R-J2 Mate Controller LR. The FANUC Alarms section of the teach pendant is your first step to solving a robot fault.
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