Analysis of breakdown of FANUC 18i system and solve

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Resume 410 reach a means of settlement with 411 breakdown phenomenon, case study. The graph in method of breakdown of keyword FANUC system classifies label of date TP307 document to pile up B 1. Breakdown is analysed to be when breakdown of amplifier of machine tool occurrence machinery, electric machinery, servo, coder, reduce the damage of the machine tool as far as possible, FANUC system from the set on software 410 and of 411 call the police. 410 call the police: SERVO ALARM: N, TH AXIS-EXCESS ERROR calls the police explanation: N of ① of the axis stop positional deviation value to exceed parameter the set value of 1829. ② is in simple and easy synchro control, synchronous compensation exceeds parameter the set value of 8325. 411 call the police: SERVO ALARM:n, TH AXIS-EXCESS ERROR calls the police explanation: The positional deviation value when N axis is mobile exceeds parameter the set value of 1828. 410 and 411 call the police following plan institute notify systematic processing procedure: Servo pilot process has in NC in, pulse of mobile instruction classics allocates processing, by the graph medium ① enters error register, increase by degrees to the numerical value of error register, pass the speed loop of servo and voltaic loop, by roll of electric machinery of servo of servo amplifier drive, make install the increment type coder at the back of electric machinery to give out digital pulse, feedback arrives servo amplifier, by the graph through FSSB cable medium ② enters error register, undertake decreasing successively to the numerical value of error register, the numerical value in register of the error below normal circumstance maintains from beginning to end in certain limits less than, when servo stops, the numerical value of error register is 0. If mobile instruction or coder feedback are both medium have, can create the implicit numerical value in error register too big, when shift, if the parameter of absolutely and numeric ＞ in error register the numerical value of 1828 lis of set, the machine tool can appear 411 call the police, when stopping if the parameter of absolutely and numeric ＞ in error register the numerical value of 1829 lis of set, the machine tool can appear 410 call the police. The numerical value of error register can see 300 numbers in the diagnosis of FANUC system. The machine tool is in inactive moment, vertical axis (V axis) because servo amplifier is undesirable,glide, with respect to occurrence 410V the axis calls the police later. The value of register of error of axis of the V in picture of servo parameter setting is - 17894, its absolute value exceeded parameter the set value of 1829. 2. Breakdown reason (1)410 calls the police: If collide,① machine tool is suspending status, the positional deflection that brings about some axis exceeds parameter when the set of 1829 is worth. The servo amplifier of ② machine tool or electric machinery undesirable, electric machinery is caused when shift cannot drive machinery is laden. The machinery of itself of ③ machine tool has a problem, cause machinery to jam, if move servo axis. ④ to vertical axis, in switch on the mobile phone or close machine when, if the holds brake and electric machinery in the arms excitation activation sequential of electric machinery does not accord with the requirement of FANUC, be in for instance when switching on the mobile phone, of electric machinery hold brake in the arms to had gotten report, but its servo is started had not risen, fall as a result of the gravitational meeting of vertical axis itself so, cause 410 call the police. If the feedback cable of the coder of ③ servo electric machinery or coder appears problem, the positional feedback that causes servo axis is abnormal. (2)411 calls the police: ① machine tool is in mobile process, mechanical load is too big. ② machine tool is in treatment project, the cutting tool of treatment damages, cause mobile load very big. The servo amplifier of ③ machine tool or electric machinery undesirable, can appear in machining a process call the police. The feedback cable of the dynamical line of ④ servo electric machinery, electric machinery, coder or coder is undesirable, can appear in machining a process call the police. 3. Breakdown is solved appear in the system 410 or 411 when calling the police, the circumstance of the respect such as the mechanical load of axis of the feedback cable of the dynamical cable that should check electric machinery of servo amplifier, coder, servo, servo electric machinery and coder, servo, if the system is,close machine appear of vertical axis 410 call the police, want those who check vertical axis to hold brake and servo in the arms to start the sequential that shut. CNC Milling