myportal.fanucamerica.com
Posts by yellowbotflipper
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swapping brake cables on that model is the simplest way to prove the brake without having to remaster... axis 4 and 6 are in close proximity and swapping brake cables is inconsequential. but usually to resolve this issue your going to need to at least remaster the affected axis regardless
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When its only 1 axis affected you can almost always rule out the servo amplifier. Usually an intermittent issue, meaning you can get it, reset it, continue on but then presents again in roughly the same physical location would be a brake cable. The physical location repeatability of the fault is caused by cable 99.9% of the time. Also, the brake circuit is a single 24v circuit, meaning that you can swap brake cables from j6 motor to j4 motor. If the alarm changes to J4 its the cable. If it stays with J6 its the motor or reducer. My guess would be that it will change with the cable unless the srvo-050 is accompanied by an ovc srvo-053 alarm. If 053 is also experienced it is likely the the motor is trying to overcome a physical resistance after the brake has been released. Another method of ruling out the brake would be to remove motor from the j6 axis and attempt to jog j6. If the motor spins you can rule out the brake. Its then likely the reducer. It could also be the input gear but usually you'd get an srvo-024 move excess if it was the input gear