How to diagnose a brake fault on a FANUC R-2000iC industrial robot
A brake fault alarm on the R-2000iC is a safety-critical condition. Do not jog or run the robot until the brake is confirmed functional. Check solenoid voltage and coil resistance first.
How to fix end-effector misalignment on a FANUC R-2000iC robot
End-effector misalignment on the R-2000iC is almost always TCP calibration drift from tool wear or a tool mounting shift. Verify tool geometry against the defined TCP before touching up program points.
How to diagnose erratic motion on a FANUC R-2000iC industrial robot
Erratic motion on the R-2000iC is most often a worn or intermittently open cable in the arm harness. Inspect the cable bundle at J1 and J3 first as those points see the most flexing.
How to diagnose joint noise on a FANUC R-2000iC industrial robot
Joint noise on the R-2000iC points to worn harmonic drive bearings or insufficient lubrication. Check grease interval compliance first before opening any joint.
How to fix position drift on a FANUC R-2000iC industrial robot
Position drift on the FANUC R-2000iC is most commonly encoder count loss or joint backlash from wear. Run the FANUC mastering check before mechanical inspection.
How to diagnose a servo overload alarm on a FANUC R-2000iC robot
A servo overload alarm on the R-2000iC is either excessive payload, a collision detection threshold too sensitive for the application, or a mechanical fault in the affected joint. Start with payload verification.