We have recently purchased an old Fanuc S-420iF robot with an R-J2 controller and we have at least a problem with it. We know that we could contact Fanuc or a specialized company but their intervention would cost time than the double or triple of what we have paid for the robot and, as a family company struggling to start, we do not have the money at this stage. It is a also good opportunity for us to learn more about our robot.
The system boots up correctly (with some faults, notably the SRVO 062, because the batteries were depleted) and we can navigate the menus. However, in 1-2 minutes after power on the whole system hangs up: the teach pendant does not respond anymore (without a specific message of any sort) and a red LED (the one of the right) lights up on the main CPU board.
The teach pendant/controller hangs up regardless whether we navigate the menus or just let it wait.
It is very important to
note that it does not hang when started in bmon (boot monitor).
We have done a COLD START but this hasn't fixed the problem.
The image below shows the status of the main CPU board LEDs in the hung up state.
The green LED-s are on since the end of the initial tests. According to a version of the "FANUC Robotics SYSTEM R-J2 Controller Maintenance Manual" that we found on the internet, they indicate that “If the robot’s status is normal, all the status LEDs will be lit.” According to the same manual, the status and alarm LEDs indicate that the main CPU board passes (before the teach pendant is ready to display) successfully a number of tests regarding the CPU PC board, the memory modules and the axis module. Which tells us that these modules should be ok. Unfortunately this manual does not say what happens to the alarm LEDs after the teach pendant is ready to display. We guess that it is the software (Sealing Tool for this controller) manual that presents that.
We do not have any Sealing Tool manual so we would grateful for any help in fixing this problem.
For your reference:
Sealing Tool 7D60
Software Edition No. V4.30P/88
Teach Pendant 7D01/09I
Boot Monitor version 4.22P (01E)
We would be equally grateful for a manual of Sealing Tool/R-J2.
Thank you for your attention,