I'm currently using the Fanuc system RJ2 controller/teach pendant, i am currently down one robot due to a vault. Servo 50, I've done everything the Fanuc manual said to do with no results, every axis point i can manually jog but J4, this is where the fault occurs, can anyone give me any helpful hints as to how i can remove the error code and get my robot back in production? Thanks in advance Mark78P
Fanuc RJ2 teach pendant servo 50 fault/error code
- Mark78P
- Thread is marked as Resolved.
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Review you current consumption on J4 if it is exceeded, you should consider replace the Servo.
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Maybe it is the brake of the motor.
Look carefully at the cables and clean the connectors.Helped me a few times.
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Search this error on here. There is a post that talks about a tech finding pins shorted in his brake harness.
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https://www.robot-forum.com/ro…l-axes/msg71405/#msg71405
This is the post I mentioned. -
you can try removing the motor from mechanical unit, but don't disconnect it. Once the motor is out, try to jog the axis... If motor rotates, there is a mechanical damage... If it does not rotate, the problem can be the motor, cables (internal/robot-controller) or servoamplifier.
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Just remove the motor from the casing and jog the axis? Do not disconnect, with the robot powered up?Yes. The collision detected alarm means an over effort over the motor... and the problem can be mechanical or electrical. if you remove the motor from casting (yes, without disconnect it), and press the J4-key to jog it and the motor shaft spins, that can mean a mechanical issue.
Obviusly, the motor maintain the physical position of J4 when it is attached. if you think that J4-axis can move when the motor is removed, it is better don't do this.
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