cnc-preventive maintenance yao manabat

Engr. Cameron B. YaoMr. Vincent Boy E. Manabat Resource Speaker/s

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MIRDC-ITSSlide *OBJECTIVEAt the end of the course, the participants shall be able to identify proven techniques, principles, and strategies in establishing Preventive Maintenance of a CNC machine.

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MIRDC-ITSSlide *COURSE OUTLINEMaintenance ConceptsObjective of MaintenancePreventive MaintenanceCorrective MaintenanceMeasures and Activities of Maintenance

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MIRDC-ITSSlide *A combination of action carried out on an item to retain it in, or to restore it, to an acceptable condition.The management, control, execution and quality of those activities which will ensure that optimum levels of availability and overall performance of plant are achieved in order to meet business demands.MAINTENANCE

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MIRDC-ITSSlide *To keep up the planned availability performance at the lowest cost and within the safety prescriptions.OBJECTIVE OF MAINTENANCE

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MIRDC-ITSSlide *MAINTENANCEPREVENTIVEMAINTENANCECORRECTIVEMAINTENANCE

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MIRDC-ITSSlide *MAINTENANCECorrectiveMaintenancePreventiveMaintenancePlannedUnplannedDirect(FTM)Indirect(CBM)SubjectiveObjectiveContinuous

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MIRDC-ITSSlide *Covers all maintenance which is carried out in order to correct a fault in equipmentCorrectiveMaintenancePlannedCorrectiveMaintenanceCORRECTIVE MAINTENANCEUnplannedCorrectiveMaintenance

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MIRDC-ITSSlide *A maintenance method to improve the reliabilityand maintainability of equipment by:

Taking a countermeasure for preventing is recrudescence at the time of equipment abnormality and failure;

Improving a section or parts to be considered as the cause of failure;CORRECTIVE MAINTENANCE

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MIRDC-ITSSlide *Improving the design which brings about poor maintainability, and;

Modifying and improving the equipment where a fundamental problem may be included in the design.CORRECTIVE MAINTENANCE

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MIRDC-ITSSlide *Unplanned Corrective or Breakdown Maintenance

Final or temporary repair of damage occurring suddenly and unexpectedlyCORRECTIVE MAINTENANCE

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MIRDC-ITSSlide *Planned Corrective MaintenancePlanned replacement of non-functioning parts and installation of reconditioned or new parts.

Indirect preventive maintenance and condition monitoring is the basis for planned maintenance.CORRECTIVE MAINTENANCE

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MIRDC-ITSSlide *A maintenance method to repair the equipment after occurrence of failure.There are two methods:where the countermeasure for emergency failure is executed due to an incapability of failure predictionwhere employing the breakdown maintenance as a policy since it is profitable to repair after failureBREAKDOWN MAINTENANCE

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MIRDC-ITSSlide *Do nothing until machine breaks Low cost until the first failure but after the first failure, it becomes the most expensive method.Failure is the inability to perform the duty, eithertotally or partially (e.g. at reduced rate, at poorquality or with high energy consumption)Remember on breakdown maintenance

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MIRDC-ITSSlide * Lack of effective maintenance

Design weaknesses

Incorrect operation

Lack of effective cleaningCAUSES OF BREAKDOWN

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MIRDC-ITSSlide *Covers all programmed maintenance which is carried out in order to prevent the occurrence of failures, to detect failures before they develop to a breakdown, or other disturbances in production.PREVENTIVE MAINTENANCE

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MIRDC-ITSSlide *The principles upon which preventive maintenance is based are:Maintenance is cumulativeEvidence of developing failure may be foundGrowth to failure takes timePreventive maintenance is less costly.PREVENTIVE MAINTENANCE

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MIRDC-ITSSlide *The part we are concentrated to prevent the occurrence of failure e.g. cleaning, lubrication, programmed replacements.Are controlled by time which can be calendar time, operation time, number of kilometers driven.Since it is fixed in time, it is called Fixed Time Maintenance (FTM).DIRECT PREVENTIVE MAINTENANCE

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MIRDC-ITSSlide *is done to find the failure in an early stage of their development by measuring or inspection and control the condition level.Means that the condition will not directly be influenced when such job is done.Also called condition-based monitoring (CBM). Is also controlled by time but it is controlling the actual need of maintenance.INDIRECT PREVENTIVE MAINTENANCE

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MIRDC-ITSSlide *USE YOUR FIVE SENSESlooklistenfeelsmelltaste. plus the 6th

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WHAT MACHINE X SAYS TO HIS MASTERI love you, Master, because you care for me.Please wash my body and joints regularlybefore I become dirty and feel itchy.I will whisper to you when I feel uncomfortable.So, please listen to me carefully and fixme before I become seriously ill.I like to work hard for you, master.I also like to live a long life.Master, Please understand me a bit more,so that I can enjoy working with you.Thank you for your kind consideration.

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Lubrication System for V40 CNC Machine Oil ChartMIRDC-ITSSlide 3

OIL USAGE RECOMMENDATIONMOBILSHELL ESSOCASTROLLUBRICATION FOR PNEUMATICRARUS 424CORENA S32TERESSO 32HYSPIN VG32 / PERFECTO T32AUTO LUBRICATOR SYSTEMVACTRA 2TONNA T68FEBIS K68MAGNA BD68SPINDLE OIL COOLER SYSTEMVELOCITE 12TURBO T32SPINESSO 22HYSPIN VG32 / PERFECTO T32

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Lubrication System for V40 CNC Machine Oil ChartMIRDC-ITSSlide 3

OIL USAGE RECOMMENDATION (contn)MOBILSHELL ESSOCASTROLHYDRAULIC SYSTEMDTE LIGHTTELLUS 32NUTO H32HYSPIN AWS32GEAR OF ROTARY TABLEMOBILGARDOMALA 150SPARTAN EP 150ALPHA SP150SINDLE MOTOR GEAR BOCDTE HEAVY MEDIUMTELLUS 68NUTO H68ALPHA SP68

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FILL UP LUBRICATION OILAfter opening the cap of oil inlet, fill up the clean fresh oil till to the top line of high level.The oil tank should always preserve clean lubricant.In case of impurity remains in the oil tank, please take the oil away and wash the tank, oil net immediately. Then refill up new oil or it will fail the oil feeding.Adjust oil discharge by taking off the plastic cup and three E type retainers first.

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FILL UP LUBRICATION OIL (contn)Pull the rod up and down till the requirement volume of discharge is up to the scale rod, then fix with the E type retainersIt is necessary to refill up the lubricant oil if oil level is below the lower line during operating.Note:The oil quantity will reduce gradually under normal application.Be careful whether the motor is running normally or abnormally, if not, contact the local agent or supplier.The lubrication please use MOBIL VACTRA OIL No. 2 or SHELL OIL T68 or ESSO FEBISK68 or another brand of equivalence oil.MIRDC-ITSSlide 3

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SLIDEWAY LUBRICATION PUMPIt is the pump that feeds lubricating oil to the X, Y and Z slideways and ball screws.It is also called the cycle pump.The pump operates for 30 s every 30 min during automatic operation or every 32 minutes except during auttomatic operation.

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SLIDEWAY LUBRICATION PUMPNOTE:Before starting the machine when the machine has not been used for a while (during holidays or vacations), do not try to feed the axes immediately after turning ON the power because the slideways are not yet lubricated.

Use the LUBRICATION PUSH-BUTTON SWITCH on the lubrication unit to feed lubricating oil to the slideways (hold it for approx. 30 s and release it for approx. 30 s).

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SLIDEWAY LUBRICATION PUMPNOTE: (contn)The pump feeds lubricating oil to the slideways while the button switch is jeld down.Repeat this procedure three (3) times to lubricate the slideways.Replenish the tank with the specified lubricating oil as needed.ALWAYS USE FRESH, CLEAN OIL and NEVER REMOVE THE STRAINER WHEN REPLENISHING THE TANKMIRDC-ITSSlide 3

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OIL-AIR LUBRICATION UNITCheck the following precautions when inspecting and cleaning the lubrication unit:Check the oil amount in the oil tank regularly.Replenish the lubricating oil as needed.Always keep the oil level higher than the red line on the oil gauge.Mixing different types of oil will cause sludge to clog the piping run (therefore always use the same type of oil).Also be careful not to allow foreign matter to enter the tank when supplying lubricating oil.

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OIL-AIR LUBRICATION UNITCheck the pipes and pipe joints of the lubricating system regularly for oil leaks. If oil leaking through a pipe joint is found, tighten the joint.Change or clean the suction filter at least once a year.Use compressed air or washing oil to clean the suction filter.Never use thinner-based oil to clean the filter.

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OIL-AIR LUBRICATION UNITCheck the inside of the tank for contamination.If it is contaminated, clean it with KEROSENE or NEUTRAL DETERGENT.Never use volatile solvent such as THINNER, GASOLINE and TRICLENE.The tank can be easily discounted by loosening the screws on the both sides and sliding the metal fittings.MIRDC-ITSSlide 3

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OIL-AIR LUBRICATION UNITCaution on operation:Fill the tank with the clean lubricating oil specified.Mixing different types of oil will cause sludge to clog the piping run.Also, be careful not to allow the foreign matters to enter the tank.Continuous no-load running without oil will damage the unit. MIRDC-ITSSlide 3

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OIL-AIR LUBRICATION UNITAlter piping, discharge the air. The air can be easily discharged by pressing the manual lubrication oil push-button as follows:Fill the oil in the main pipe. Remove the pipe or plug at the higher position and discharge the air.Continue to discharge the air until the bubbles in the oil are removed (Discharged the air from several spots as needed).When the bubbles in the oil are completely removed, tighten the plug at the original position.MIRDC-ITSSlide 3

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TROUBLESHOOTINGWhen there is a drop in lubricating oil pump pressure or an incorrect pressure on the display screen, an error has occurred in the lubricating oil pressure. The alarm number is specified below:ALARM 557 (Low Pressure)ALARM 558 (High Pressure)

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TROUBLESHOOTINGPossible causes for significant change in pressure and the necessary actions are stated below.

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Possible CausesActionLeak from pipeTighten or replace pipeFaulty PumpsReplace PumpOperation Failure of relief valveIncorrect SettingValve is not in contact with the seat correctlyClogged line filterCheck the pressure gauge and adjust pressure settingIf the valve or valve seat is scratched or damaged, correct of change it.Remove foreign matterClogged Line FilterClean line filter

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TROUBLESHOOTINGNOTE:While performing the above countermeasures, air may enter into the lubricating oil pump.If this air enters the distributor, CORRECT LUBRICATION CANNOT BE CARRIED OUT.At this point, cleaning method of the line filter and air bleeding method from the distributor are explained.MIRDC-ITSSlide 3

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HOW TO CLEAN THE LINE FILTERTurn off the powerLoosen four cap bolts and remove the lower part of the line filter. Support the lower part of the line filter by hands not to fall it down when loosening the cap bolts. MIRDC-ITSSlide 3

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HOW TO CLEAN THE LINE FILTERTake out the filterClean the filter with KeroseneMIRDC-ITSSlide 5

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HOW TO CLEAN THE LINE FILTERApply compressed air to the filter.Put in the filterMIRDC-ITSSlide 5

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HOW TO CLEAN THE LINE FILTERMount the lower part of the line filter and tighten four cap bolts.MIRDC-ITSSlide 3

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HOW TO DO AIR BLEEDINGTurn off the power.Loosen the distributor oil plug using a spanner. Apply a waste to the plug to catch the leaking oil.MIRDC-ITSSlide 3

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HOW TO DO AIR BLEEDINGTurn ON the power.Press the push-button on the manual lubricating oil distributor several times until air is completely bled. The oil mixed with air bubble is discharged from the distributor oil plug.MIRDC-ITSSlide 3

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HOW TO DO AIR BLEEDINGAfter the oil mixed with air bubble is completely discharged, tighten the distributor oil plug using a spanner.MIRDC-ITSSlide 3

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CLEANING and MAINTENANCEDAILY MAINTENANCEBefore Power ONInspect if the power cable and external cable are normally connected and the voltage capacity is matched with the machines requirement.Check if there is oil or coolant leakage on the hydraulic or coolant pipes.Check if there are enough oil for the hydraulic unit, lubrication unit and coolant unit.MIRDC-ITSSlide 3

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CLEANING and MAINTENANCEDAILY MAINTENANCEBefore Power ON (contn)Check if the pressure gauges of the hydraulic unit and pneumatic unit were indicated to zero position.Check if the auto tool changer unit is at the normal position.MIRDC-ITSSlide 3

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CLEANING and MAINTENANCEDAILY MAINTENANCEAfter Power ON Check if there is alarm message after the NC power ON.NC should be ready to execute the program.All the running components should run at normal condition without noise.The pressure gauge for pneumatic system should be at 6 kg/cm2 or 6 bars.

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CLEANING and MAINTENANCEDAILY MAINTENANCEAfter Power ON (contn)Auto lubricator should be actuated to pump oil with flow setting 3 to 6 cc/cycle.The lubricant should glow out to the slideways.The wipers on the telescopic covers should be cleaned from the shipsTest tool changing unit and make sure the unit can work smoothly.Warm up the machine 15 to 20 minutes to lubricate slideways.

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CLEANING and MAINTENANCEDAILY MAINTENANCEAfter Finishing Daily WorkInspect the oil level of auto lubricator tank to refill up, if it is necessary and is consumed.If there is water or dirt in the tank, relieve and change fresh oil.Check level of coolant to refill up and flush the coolant pump through with clean water if there are impurities after use.

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CLEANING and MAINTENANCEDAILY MAINTENANCEAfter Finishing Daily Work (Contn)Replace the fan net of heat exchanger on electrical cabinet.Replace the element of filter on hydraulic tank or other accessory parts.Clean the electrical motor outside and turn off the power at first.

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CLEANING and MAINTENANCEDAILY MAINTENANCEAfter Finishing Daily Work (Contn)Before cleaning the chip or dirt on the conduction block of sensor and magnetic switch, turn off the power.Check the smooth function of all limit switches for axes and clean the dirt or re-adjust the position, if necessary.

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CLEANING and MAINTENANCEANNUAL MAINTENANCEFollow the same procedures as mentioned above semiannual maintenance.Replace the hydraulic oil and oil filter according to the oil recommendation.Replace the filter for auto lubricator and clean the lubrication tank, coolant tank.MIRDC-ITSSlide 3

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CLEANING and MAINTENANCEANNUAL MAINTENANCE (contn)Do not pour out the wasting oil or coolant liquid casually. Id better remain in oil bucket periodically and send to the authorities concerned of shop wastes to deal with it.Check and correct the geometric accuracy of the machine.MIRDC-ITSSlide 3

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Programs Errors (Milling Siemens)MIRDC-ITSSlide 3

NumberMessageContents000PLEASE TURN OFF POWERA parameter which requires the power off was input, turn off power.001TH PARITY ALARMTH alarm ( A character with incorrect parity was input). Correct the tape.002TV PARITY ALARMTV alarm (The number of characters in a block is odd). This alarm will be generated only when the TV check is effective.003TOO MANY DIGITSData exceeding the maximum allowable number of digits was input. (refer to the item of max. programmable dimensions.)

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NumberMessageContents004ADDRESS NOT FOUNDA numeral or the sign - was input without an address at the beginning of a block. Modify Program005NO DATA AFTER ADDRESSThe address was not followed by the appropriate data but was followed by another address or EOB code. Modify program006ILLEGAL USE OF NEGATIVE SIGNSign . input error (Sign - was input after an address with which it cannot be used. Or two or more - signs were input.)007ILLEGAL USE OF DECIMAL POINTDecimal point - input error ( A decimal point was input after an address with which it can not be used. Or two decimal points were input.) Modify program

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NumberMessageContents009ILLEGAL ADDRESS INPUTUnusable character was input in significant area. Modify Program010IMPROPOER G-CODEAn unusable G code or G code corresponding to the function not provided is specified. Modify Program011NO FEEDRATE COMMANDEDFeedrate was not commanded to a cutting feed or the feedrate was inadequate. Modify Program014CAN NOT COMMAND G95A synchronous feed is specified without the option for threading / synchronous feed.

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NumberMessageContents015TOO MANY AXES COMMANDEDThe number of the commanded axes exceeded that of simultaneously controlled axes.020OVER TOLERANCE OF RADIUSIn circular interpolation (G2/G3) difference of the distance between the start point and the center of an arc and that between the end point and the center of the arc exceeded the value specified in parameter No. 3410.021ILLEGAL PLANE AXIS COMMANDEDAn axis not included in theselected plane (by using G17, G18 and G19) was commanded in circular interpolation. Modify Program

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NumberMessageContents022NO CIRCULAR RADIUSWhen circular interpolation is specified, neither R (specifying an arc radius), nor I, J and K (specifying the distance from a start point to the center) is specified.025CANNOT COMMAND F0 in G2/G3F0 (fast feed) was instructed by F1- digit column feed in circular interpolation. Modify Program.027NO AXES COMMANDED IN G43/G44No axis is specified in G43 and G44 block for the tool length offset type C. Offset is not cancelled but another axis offset for the tool length offset type C. Modify Program

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NumberMessageContents029ILLEGAL OFFSET VALUEThe offset values specified by H code is too large. Modify Program030ILLEGAL OFFSET NUMBERThe offset number specified by D/H code for tool length offset or cutter compensation is too large. Modify Program031ILLEGAL P COMMAND IN G10In setting an offset amount by G10, the offset number following address P was excessive or it was not specified. Alternatively, the additional work coordinate number to be specified in a P code was too large. Modify Program

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NumberMessageContents032ILLEGAL OFFSET VALUE IN G10In setting an offset amount by G10 or in writing an offset amount by system variables, the offset amount was excessive.033NO SOLUTION AT CRCA point intersection cannot be determined for cutter compensation C. Modify the Program034NO CIRC ALLOWED IN ST-UP/EXT BLKThe start up or cancel was going to be performed in the G02 or G03 mode in cutter compensation C. Modify the program.036CAN NOT COMMANDED G31Skip cutting (G31) was specified in cutter compensation mode. Modify the program.

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NumberMessageContents037CAN NOT CHANGE PLANE IN CRCG40 is commanded on the plane other than offset plane in cutter compensation B. The plane selected by using G17, G18 and G19 is changed in cutter compensation C mode. Modify the program.038INTERFERENCE IN CIRCULAR BLOCKOvercutting will occur in cutter compensation C because the arc start point or end coincides with the arc center. Modify the program.041INTERFERENCE IN CRCOvercutting will occur in cutter compensation C. Two or more blocks are consecutively specified in which functions such as auxiliary function and dwell functions are performed without movement in the cutter compensation mode. Modify the program.

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NumberMessageContents042G45/G48 NOT ALLOWED IN CRC Tool offset (G45 to G48) is commanded in cutter compensation. Modify the program.044G27-G30 NOT ALLOWED IN FIXED CYCOne of G27 to G30 is commanded in canned cycle mode. Modify the program.045NO G COMMAND (G73/G83)A depth for each cutting (Q) is not commanded in canned cycle G73 or G83. Alternatively, Q was specified. Correct the program.046ILLEGAL REFERENCE RETURN COMMANDOther than P2, P3 and P4 are commanded for 2nd , 3rd and 4th reference position return command.

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NumberMessageContents050CHF/CNR NOT ALLOWED IN THRD BLKChamfering or corner R is commanded in the thread cutting block. Modify the program.051MISSING MOVE AFTER CHF/CNRImproper movement or the move distance was specified in the block next to the chamfering or corner R block. Modify the program.052CODE IS NOT G01 AFTER CHF/CNRThe block next to the chamfering or corner R block is not G01, G02 or G03. Modify the program.053TOO MANY ADDRESS COMMANDSFor systems without the arbitrary angle chamfering and corner R cutting, a comma was specified. For systems with this feature, a comma was followed by something other than R or C. Correct the program.

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NumberMessageContents055MISSING MOVE VALUE IN CHF/CNRIn the arbitrary angle chamfering or corner R block, the move distance is less than chamfer or corner R amount.058END POINT NOT FOUNDIn an arbitrary angle chamfering or corner R cutting block, a specified axis is not in the selected plane. Correct the program.059PROGRAM NUMBER NOT FOUNDIn an external program number search or external workpiece number search, a specified program number was not found. Otherwise, a program specified for searching is being edited in background processing. Otherwise, a program specified by an one-touch macro calls is not registered in memory. Check the program number and external signal or discontinue the background editing.

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NumberMessageContents060SEQUENCE NUMBER NOT FOUNDCommanded sequence number was not found in the sequence number search. Check the sequence number.070NO PROGRAM SPACE IN MEMORYThe memory are is insufficient. Delete any unnecessary programs, then retry.071DATA NOT FOUNDThe address to be searched was not found or the program with specified program number was not found in the program number search. Check the data072TOO MANY PROGRAMSThe number of programs to be stored exceeded 63 (basic), 125 (option), 200 (option) or 400(option). Delete unnecessary programs and execute program registration again.

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NumberMessageContents073PROGRAM NUMBER ALREADY IN USEThe commanded program number has already been used. Change the program number or delete unnecessary programs and execute program registration again.074ILLEGAL PROGRAM NUMBERThe program number is other than 1 to 9999. Modify the program number.075PROTECTAn attempt was made to register a program whose number was protected.076ADDRESS P NOT DEFINEDAddress P (program number) was not commanded in the block which includes an M98, G65 and G66 command. Modify the program.

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NumberMessageContents077SUB PROGRAM NESTIN ERRORThe subprogram was called in five folds. Modify the program078NUMBER NOT FOUNDA program number or sequence number which was specified by address P in the block which includes an M98, M99, M65 or G66 was not found. The sequence number specified by a GOTO statement was not found. Otherwise, a called program is being edited in background processing. Correct the program.079PROGRAM VERIFY ERRORIn memory or program collation, a program in memory does not agree with that read from an external I/O device. Check both the programs in memory and those from the external device.

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NumberMessageContents083ILLEGAL AXIS COMMAND IN G37In automatic tool length measurement, an invalid axis was specified or the command is incremental. Modify the program.085COMMUNICATION ERRORWhen entering data in the memory by using reader/ puncher interface, an overrun, parity or framing error was generated. The number of bits of input data or setting of baud rate or specification No. of I/O unit is incorrect. 086DR SIGNAL OFFWhen entering data in the memory by using reader/puncher interface, the ready signal (DR) of reader/puncher was

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NumberMessageContents087BUFFER OVERFLOWWhen entering data in the memory by using reader/puncher interface, though the read terminate command is specified, input is not interrupted after 10 characters read. I/O unit or P.C.B. is defective.090REFERENCE RETURN INCOMPLETEThe reference position return cannot be performed normally because the reference position return start point is too close to the reference position or the speed is too slow. Separate the start point far enough from the reference position, or specify a sufficiently fast speed for reference position return. 091REFERENCE RETURN INCOMPLETEIn the automatic operation halt state, manual reference position return cannot be performed.

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NumberMessageContents092AXES NOT ON THE REFERENCE POINTThe commanded axis by G27 (Reference position return check) did not return to the reference position.094P TYPE NOT ALLOWED (COORD CHG)P type cannot be specified when the program is restarted. (After the automatic operation was interrupted, the coordinate system setting operation was performed). Perform the correct operation according to the operators manual.095P TYPE NOT ALLOWED (EXT OFS CHG)P type cannot be specified when the program is restarted. (After the automatic operation was interrupted, the external workpiece offset amount changed).

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NumberMessageContents096P TYPE NOT ALLOWED (WRK OFS CHG)P type cannot be specified when the program is restarted. (After the automatic operation was interrupted, the workpiece off set amount changed).097P TYPE NOT ALLOWED (AUTO EXEC)P type cannot be directed when the program is restarted. (After power ON, after emergency stop or P/S alarm 94 to 97 were reset, no automatic operation is performed) Perform automatic operation.098G28 FOUND IN SEQUENCE RETURNA command of the program restart was specified without the reference position return operation after power ON or emergency stop, and G28 was found during search. Perform the reference position return.

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NumberMessageContents099MDI EXEC NOT ALLOWED AFT. SEARCHAfter completion of search in program restart , a move command is given with MDI.100PARAMETER WRITE ENABLEOn the PARAMETER (SETTING) screen, PWE (parameter writing enabled) is set to 1. Set it to 0, then reset the system.101PLEASE CLEAR MEMORYThe power turned off while rewriting the memory by program edit operation. If this alarm has occurred, press while pressing and only the program being edited will be deleted. Register the deleted program. 109FORMAT ERROR IN G08A value other than 0 or 1 was specified after P in the G08 code, or no value was specified.

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NumberMessageContents110DATA OVERFLOWThe absolute value of fixed decimal point display data exceeds the allowable range. Modify the program.111CALCAULATED DATA OVERFLOWThe result of calculation is out of the allowable range (-1047 to -10-29, 0, and 10-29 to 1047).112DIVIDED BY ZERODivision by zero was specified. (including tan 90)113IMPROPER COMMANDA function which cannot be used in custom macro is commanded. Modify the program.114FORMAT ERROR IN MACROThere is an error in other formats then . Modify the program.

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NumberMessageContents115ILLEGAL VARIABLE NUMBERA value not defined as variable number is designated in the custom macro. Modify the program.116WRITE PROTECTED VARIABLEThe left side of the of substitution statement is a variable whose substitution is inhibited. Modify the program.118PARENTHESIS NESTING ERRORThe nesting of bracket exceeds the upper limit (quintuple). Modify the program119ILLEGAL ARGUMENTThe SQRT argument is negative, BCD argument is negative, or other values than 0 to 9 are present on each line of BIN argument. Modify the program.

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NumberMessageContents122QUADRUPLICATE MACRO MODAL CALLA total of four macro calls and macro modal calls are nested. Correct the program.123CAN NOT USE MACRO COMMAND IN DNCMacro control is used during DNC operation. modify the program.124MISSING END STATEMENTDO-END does not correspond to 1:1. Modify the program.125FORMAT ERROR IN MACRO format is erroneous. Modify the program.126ILLEGAL LOOP NUMBERIn DOn, 1< n < 3 is not established. Modify the program.

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NumberMessageContents127NC, MACRO STATEMENT IN SAME BLOCKNC and custom macro commands coexist. Modify the program.128ILLEGAL MACRO SEQUENCE NUMBERThe sequence number specified in the branch command was not 0 to 9999. Or, it cannot be searched. Modify the program.129ILLEGAL ARGUMENT ADDRESSAn address which is not allowed in is used. Modify the program.130ILLEGAL AXIS OPERATIONAn axis control command was given by PMC to an axis controlled by the CNC. Or axis control was given by CNC to an axis controlled by PMC. Modify the program

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NumberMessageContents131TOO MANY EXTERNAL ALARM MSGSFive or more alarms have generated in external alarm message. Consult the PMC ladder diagram to find the cause.132ALARM NUMBER NOT FOUNDNo alarm No. concerned exists in external alarm message clear. Check the PMC ladder diagram.133ILLEGAL DATA IN EXT ALARM MSGSmall section data is erroneous in external alarm message or external operator message. Check the PMC ladder diagram.135ILLEGAL ANGLE COMMANDThe index table indexing positioning angle was instructed in other than an integral multiple of the value of the minimum angle. Modify the program.

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NumberMessageContents136ILLEGAL AXIS COMMANDIn index table indexing, another control axis was instructed together with the B axis. Modify the program.139CAN NOT CHANGE PMC CONTROL AXISAn axis is selected in commanding by PMC axis control. Modify the program.141CAN NOT COMMAND G51 IN CRCG51 (SCALING ON) is commanded in the tool offset mode. Modify the program.142ILLEGAL SCALE RATEScaling magnification is commanded in other than 1 999999. Correct the scaling magnification setting (G51 Pp . . . Or parameter 5411 or 5421).

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NumberMessageContents143SCALED MOTION DATA OVERFLOWThe scaling results, move distance, coordinate value and circular radius exceed the maximum command value. Correct the program or scaling magnification.144ILLEGAL PLANE SELECTEDThe coordinate rotation plane and arc or cutter compensation C plane must be the same. Modify the program.148ILLEGAL SETTING DATAAutomatic corner override deceleration rates is out of the settable range of judgment angle. Modify the program.149FORMAT ERROR IN G10L3A code other than Q1, Q2, P1 or P2 was specified as the life count type in the external tool life management.

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NumberMessageContents150ILLEGAL TOOL GROUP NUMBERTool group no. exceeds the maximum allowable value. Modify the program.151TOOL GROUP NUMBER NOT FOUNDThe tool group commanded in the machining program is not set. Modify the value of program parameter.152NO SPACE FOR TOOL ENTRYThe number of tools within one group exceeds the maximum value registerable. Modify the number of tools.153T-CODE NOT FOUNDIn the registration of tool life data, a T code was not specified in a block where it is required. Alternatively, only M06 was specified in a block for tool change type D. Correct the program.

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NumberMessageContents154NOT USING TOOL IN LIFE GROUPWhen the group is not commanded, H99 or D99 was commanded. Correct the program.155ILLEGAL T-CODE IN M06In the machining program, M06 and T code is in the same block don not correspond to the group in use. Correct the program.156P/L COMMAND NOT FOUNDP and L commands are missing at the head of the program in which the tool group is set. Correct the program.157TOO MANY TOOL GROUPSThe number of tool groups to be set exceeds the maximum allowable value. See parameter GS1, GS2 (No. 6800 bit 0 and 1). Modify the program.

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NumberMessageContents158ILLEGAL TOOL LIFE DATAThe tool life to be set is too excessive. Modify the setting value.159TOOL DATA SETTING INCOMPLETEDuring executing a life data setting program, power was turned off. Set again.175ILLEGAL G107 COMMANDConditions performing cylindrical interpolation start or cancel not correct. To change the mode to the cylindrical interpolation mode, specify the command in a format of G07.1 rotation-axis name radius of cylinder.176IMPROPER G-CODE IN G107Any of the following G codes which cannot be specified in the cylindrical interpolation mode was specified.

MIRDC-ITS


NumberMessageContents176IMPROPER G-CODE IN G107G code for positioning such as G28, G73, G74, G76, G81 G89, including the codes specifying the rapid traverse cycle.G codes for setting a coordinate system G52, G92.G code for selecting coordinate system: G53, G54 G59177CHECK SUM ERROR (G05 MODE)Check sum error. Modify the program.178G05 COMMANDED IN G41/G42 MODEG05 was commanded in the G41/G42 mode. Correct the program.179PARAM. (PRM NO. 7510) SETTING ERRORThe number of controlled axes set by the parameter 7510 exceeds the maximum number. Modify the parameter setting value.

MIRDC-ITS


NumberMessageContents180COMMUNICATION ERROR (REMOTE BUF)Remote buffer connection alarm has generated. Confirm the number of cables, parameters and I/O device.190ILLEGAL AXIS SELECTIn the constant surface speed control, the axis specification is wrong. ( see parameter No. 3770). The specified axis command (P) contains an illegal value. Correct the program.194SPINDLE COMMAND IN SYNCHRO-MODEA contour control mode, spindle positioning (Cs-axis control) mode, or rigid tapping mode was specified during the serial spindle synchronous control mode is released in advance.

MIRDC-ITS


NumberMessageContents197C-AXIS COMMANDED INSPINDLE MODEThe program specified a movement along the Cs-axis when the signal CON(DGN=G027#7)was off. Correct the program, or consult the PMC ladder diagram to find the reason the signal is not turned ON.199MACRO WORD UNDEFINEDUndefined macro word was used. Modify the custom macro.200IILEGAL S CODE COMMANDIn the rigid tap, an S value is out of the range or is not specified. The maximum value for S which can be specified in rigid tapping is set in parameter (No. 5241 to 5243). Change the setting in the parameter or modify the program.

MIRDC-ITS


NumberMessageContents201FEEDRATE NOT FOUND INRIGID TAPIn the rigid tapping no F value is specified. Correct the program.202POSITION LSI OVERFLOWIn the rigid tapping, spindle distribution value is too large.203PROGRAM MISS AT RIGID TAPPINGIn the rigid tapping, position for a rigid M code (M29) or an S command is incorrect. Modify the program.204ILLEGAL AXIS OPERATIONIn the rigid tapping, an axis movement is specified between the rigid M code (M29) block and G84 (G74) block. Modify the program205RIGID MODE DI SIGNAL OFFRigid tapping signal (DGN061#1) is not 1 when G84 (G88) is executed through the rigid M code (M29) is specified. Consult the PMC ladder diagram to find the reason the signal is not turned ON.

MIRDC-ITS


NumberMessageContents206CAN NOT CHANGE PLANE (RIGID TAP)Plane changeover was instructed in the rigid mode. Correct the program.207RIGID DATA MISMATCHThe specified distance was too short or too long for the rigid taping.210CAN NOT COMMAND M198/M99M198 and M99 are executed in the schedule operation. Or M198 is executed in the DNC operation.In multiple repetitive pocketing canned cycle, an interrupt macro was specified and M99 was executed.212ILLEGAL PLANE SELECTThe arbitrary angle chamfering or a corner R is commanded or the plane including an additional axis. Correct the program.

MIRDC-ITS


NumberMessageContents213ILLEGAL COMMAND IN SYNCHRO-MODEAny of the following alarms occurred in the operation with simple synchronization control.The program issued the move command to the slave axis.The program issued the manual continuous feed/manual handle feed/incremental feed command to the slave axis.The program issued the automatic reference position return command without executing the manual reference position return after the power was turned ON.The difference between the position error amount of the master and slave axes exceeded the value specified in parameter No. 8313

MIRDC-ITS


NumberMessageContents214ILLEGAL COMMAND IN SYNCHRO-MODECoordinate system is set or tool compensation of the shift type is executed in the synchronous control. Correct the program.224RETURN TO REFERENCE POINTReference position return has not been performed before the automatic operation starts. Perform reference position return only when parameter ZRNx (No.1005#0) is 0.231ILLEGAL FORMAT IN G10 OR L150Any of the following errors occurred in the specified format at the programmable parameter input.Address N or R was not enteredA number not specified for a parameter was entered.The axis number was too large.

MIRDC-ITS


NumberMessageContents231ILLEGAL FORMAT IN G10 OR L150 (contn)An axis number was not specified in the axis-type parameter.An axis number was specified in the parameter which is not an axis type.An attempt was made to reset bit 4 of parameter 3202 (NE9) or change parameter 3210 (PSSWD) when they are protected by a password. Correct the program.232TOO MANY HELICAL AXIS COMMANDSThree or more axes (in normal direction control mode two or more axes) were specified as helical axes in the helical interpolation mode.233DEVICE BUSYWhen an attempt was made to use a unit such as that connected via the RS-232-C interface, other users were using it.

MIRDC-ITS


NumberMessageContents239BP/S ALARMWhile punching was being performed with the function for controlling external I/O units, background editing was performed.240BP/S ALARMBackground editing was performed during MDI function.253G05 IS NOT AVAILABLEBinary-input operation with high-speed remote buffer (G05) or high-speed cycle machining (G05) has been specified in a look-ahead control mode (G08P1). Before attempting to specify these commands, first specify G08P0; to cancel look-ahead control mode.5010END OF RECORDThe end of record (%) was specified.

MIRDC-ITS


NumberMessageContents5020PARAMETER OF RESTART ERRORThe parameter for specifying program restart is not set correctly.5046ILLEGAL PARAMETER (ST.COMP)An illegal parameter has been specified for straightness compensation. Possible reasons are as follows:There is no axis corresponding to the axis number specified in the move axis or compensation axis parameter.More than 128 pitch error compensation points are not sequentially numbered.The straightness compensation points are not sequentially numbered.

MIRDC-ITS


NumberMessageContents5046ILLEGAL PARAMETER (ST.COMP) contnA specified straightness compensation point is outside the range between the pitch error compensation points having the maximum positive and negative coordinates.The compensation value is specified for each compensation point is too large or too small.5073NO DECIMAL POINTA decimal point is not specified for a command for which a decimal point must be specified.5074ADDRESS DUPLICATION ERRORThe same address appears more than once in a block. Alternatively, a block contains two or more G codes belonging to the same group.

MIRDC-ITS


NumberMessageContents5110IMPROPER G-CODE (G05.1 Q1 MODE)An illegal G code was specified in Al look-ahead mode was specified.5111IMPROPER G-CODE (G05.1 Q1)An illegal G code is left modal when Al look-ahead control mode was specified.5112G08 CAN NOT BE COMMANDEDLook-ahead control (G08) was specified in Al look-ahead control mode.5114NOT STOP POSITION (G05.1 Q1)At the time of restart after manual intervention, the coordinates at which the manual intervention occurred have not been restored.5134FSSB: OPEN READY TIME OUTThe FSSB did not become ready to open during initialization.

MIRDC-ITS


NumberMessageContents5135FSSB: ERROR MODEThe FSSB entered an error mode.5136FSSB: NUMBER OF AMPS IS SMALLThe number of amplifiers recognized by the FSSB is insufficient, compared with the number of controlled axes.5137FSSB: CONFIGURATION ERRORThe FSSB detected a configuration error.5138FSSB: AXIS SETTING NOT COMPLETEAxis setting has not been performed in automatic setting mode. Perform axis setting using the FSSB setting screen.

MIRDC-ITS


NumberMessageContents5139FSSB: ERRORServo initialization did not terminate normally. The optical cable may be defective, or there may be an error in connection to the amplifier or another module. Check the optical cable and connection status.5156ILLEGAL AXIS OPERATION (AICC)In Al look-ahead control mode, the controlled axis selection signal (PMC axis control) changes. In Al look-ahead control mode, the simple synchronous axis selection signal changes.5157PARAMETER ZERO (AIC)Zero is set in the parameter for the maximum cutting feedrate (parameter No. 1422 or 1432). Zero is set in the parameter for the acceleration/deceleration before interpolation (parameter No. 1770 or 1771)

MIRDC-ITS


NumberMessageContents5197FSSB: OPEN TIME OUTThe FSSB did not open when the CNC had allowed the FSSB to open.5198FSSB: ID DATA NOT READThe initial ID information for the amplifier cannot be read because of failure in the temporary assignment.5212SCREEN COPY: PARAMETER ERRORThere is a parameter setting error. Check that 4 is set as the I/O channel.5213SCREEN COPY: COMMUNICATION ERRORThe memory card cannot be used. Check the memory card. (Check whether the memory card is write-protected or defective)

MIRDC-ITS


NumberMessageContents5214SCREEN COPY: DATA TRANSFER ERRORData transfer to the memory card failed. Check whether the memory card space is insufficient and whether the memory card was removed during data transfer.5220REFERENCE POINT ADJUSTMENT MODEA parameter for automatically set a reference position is set. (bit 2 of parameter No. 1819 = 1) Perform automatic setting. (position the machine at the reference position manually, then perform manual reference position return)5222SRAM CORRECTABLE ERRORThe SRAM correctable error cannot be corrected. Cause: A memory problem occurred during memory initialization.Action: Replace the master printed circuit board (SRAM module).

MIRDC-ITS


NumberMessageContents5227FILE NOT FOUNDA specified file is not found during communication with the built-in handy file.5228SAME NAME USEDThere are duplicate file names in the built-in handy file.5229WRITE PROTECTEDA floppy disk in the built-in handy file is write protected.5231TOO MANY FILESThe number of files exceeds the limit during communication with the built-in handy file.5232DATA OVER-FLOWThere is not enough floppy disk space in the built-in Handy file.5235COMMUNICATION ERRORA communication error occurred during communication with the built-in handy file.

MIRDC-ITS


NumberMessageContents5237READ ERRORA floppy disk in the built-in handy file cannot be read from. The floppy disk may be defective, or the head may be dirty. Alternatively, the handy file may be defective.5238WRITE ERRORA floppy disk in the built-in handy file cannot be written to. The floppy disk may be defective, or the head may be dirty. Alternatively, the handy file may be defective.5257G41/G42 NOT ALLOWED IN THE MDI MODEG41/G42 (cutter compensation C: M series, tool-nose radius compensation: T series) was specified in MDI mode. (depending on the setting of bit 4 of parameter No. 5008)

MIRDC-ITS


NumberMessageContents5303TOUCH PANEL ERRORA touch panel error occurredCause: The touch panel is kept pressedThe touch panel was pressed when power was turned on.Remove the above causes and turn on the power again.5306MODE CHANGE ERRORIn one-touch macro call, the mode is not normally switched at the beginning.5311FSSB: ILLEGAL CONNECTIONThis alarm is issued if, in a pair of axes in which one axis has an odd servo axis number (parameter No. 1023) and the other has an even servo axis number that is adjacent to the odd servo axis number, one of the axes is assigned to an amplifier connected to an FSSB in a system different from that for the other axis.

MIRDC-ITS

ERROR CODESMIRDC-ITSSlide 3

No.LED DISPLAYDESCRIPTIONCOUNTER- MEASURE000

A parameter that requires power-down has been specified.Turn the power off, then back on.

011

The specified feedrate is zeroCheck the feedrate parameter specified with a function code.013The specified feedrate (maximum feedrate) is zero.Check the value of parameter No. 043 which indicates the maximum feedrate that can be specified.

MIRDC-ITS



More than 32 blocks have been registered for a buffering operation.Reduce the number of registered blocks to 32.

090

Reference position setting cannot be executed normally.Check the feedrate parameter specified with a function code.093A first to third reference position return cannot be executed because the reference position has not yet been esteblished.Set the reference position.

MIRDC-ITS


No.LED DISPLAYDESCRIPTIONCOUNTER- MEASURE224The reference position has not yet been established. This occurs only when the ZRTN bit of parameter No. 001 is set to 0.Set the reference position.

250

Input data 1 is invalidCheck input data 1, specified with function code251

Input data 2 is invalidCheck input data 2, specified with function code

MIRDC-ITS


No.LED DISPLAYDESCRIPTIONCOUNTER- MEASURE254A function code or mode is invalid.Check the command code, sp

255Operation cannot be activated because as invalid mode is specified or because block execution is in progress.Check the mode. Check whether a block is being executed.

MIRDC-ITS



The interface switch signal (DRC) was switched during block executionSwitch the signal after block execution stops.291

The speed of an axial movement specified by an external pulse has exceeded the upper limit.Check the speed specified by the external pulse. Check the magnification of the external pulse. (Parameters No. 062 and 063)

MIRDC-ITS


No.LED DISPLAYDESCRIPTIONCOUNTER- MEASURE292A checksum error for the non-volatile memory was detected.Parameters are cleared. Set the parameters again. If this alarm subsequently recurs, replace unit.300

A communication error (DTER) for the serial pulse coder was detected.Check the connection of the signal cable. If the cable is normal, the pulse coder may be defective. Turn the power off. If the alarm recurs when the power is reapplied, replace the serial pulse coder, together with the motor.

MIRDC-ITS


No.LED DISPLAYDESCRIPTIONCOUNTER- MEASURE301A communication error (CRCER) for the serial pulse coder was detected.Check the connection of the signal cable. If the cable is normal, the pulse coder or servo amplifier unit may be defective. This error can also be caused by external noise.302

A communication error (STBER) for the serial pulse coder was detected.Check the connection of the signal cable. If the cable is normal, the pulse coder may be defective. This error can also be caused by external noise.

MIRDC-ITS


No.LED DISPLAYDESCRIPTIONCOUNTER- MEASURE303An LED di9sconnection (LDAL) was detected in the serial pulse coder.Turn the power off. If this alarm recurs when the power is reapplied, replace the motor.304

A mispulse alarm (PMAL) for the serial pulse coder was detected.Turn the power off. If this alarm recurs when the power is reapplied, replace the motor.305

A miscount alarm (CMAL) for the serial pulse coder was detected.Turn the power off. If this alarm recurs when the power is reapplied, replace the motor. If the alarm does not recur, restart the operation from the reference position.

MIRDC-ITS


No.LED DISPLAYDESCRIPTIONCOUNTER- MEASURE306The motor has overheat (OHAL)This alarm is issued when the motor has overheated, causing the thermostat to trip. Possible causes include an excessively high ambient temperature and excessively strict operating conditions. Check the actual cause. If it occurs again when the motor is cooled, the motor or servo amplifier may have failed. Replace the faulty motor or servo amplifier.308

A soft phase alarm (SPHAL) was detectedTurn the power off. This alarm may be caused by noise.

MIRDC-ITS


No.LED DISPLAYDESCRIPTIONCOUNTER- MEASURE319When the absolute pulse coder is used, the motor has not yet rotated through more than one turn after the first power-up.Rotate the motor through more than one turn in jog feed mode, then turn the power off then back ON.350

The battery voltage of the absolute pulse coder is low.Replace the battery.Restart the operation from the reference position return.351

The battery voltage of the absolute pulse coder is low. (warning)Replace the battery.

MIRDC-ITS


No.LED DISPLAYDESCRIPTIONCOUNTER- MEASURE400The servo motor has overheated (estimated value).The motor operation may be too severe. Check the operation condition.401A communication error was detected in the serial pulse coder.Check the connection of the pulse coder signal cable. If the cable is normal, the pulse coder or servo amplifier unit may be defective. This error can also be caused by external noise.403

SVU-12The cooling fins have overheated. (hardware detection)The load on the motor may be too high. Re-examine the load conditions.SVU-20

MIRDC-ITS


No.LED DISPLAYDESCRIPTIONCOUNTER- MEASURE403(contn)SVU-40This alarm will not be issued.SVU-80404The regenerative discharge unit has overheated.This alarm is issued when the average regenerative discharge energy is too high (when the acceleration/deceleration frequency is too high)When the separate regenerative discharge resistor is not used: For the SVU-12 and the SVU-20, check whether the CX11-6 connector is short-circuited with a dummy connector; for the SVU-40 and SVU-80, check whether the CX20 and CX23 connectors are short-circuited with dummy connector.

MIRDC-ITS


No.LED DISPLAYCOUNTER- MEASURE404 (contn)The average regenerative discharge energy may be too high. Decrease the acceleration/ deceleration frequency.The separate regenerative discharge unit may not be connected properly. Check the connection.The thermostat of the separate regenerative discharge unit may be defective. Disconnect the separate regenerative discharge unit , then check the thermostat. If the thermostat is open even through the separate regenerative discharge unit is cool, replace the separate regenerative discharge unit.

MIRDC-ITS


No.LED DISPLAYCOUNTER- MEASURE404 (contn)The resistor of the of the separate regenerative discharge unit may be defective. Disconnect the separate regenerative discharge unit, then check the resistance. If it does not fall in the range of the predetermined resistance (20% replace the separate regenerative discharge unit.If (1) to (5) are not the cause of the alarm, replace the servo amplifier unit.

MIRDC-ITS



Reference position return could not be executed.Re-execute reference position return.If a value in the range of 4 to 96 is set for parameter No. 032 (CMR), an alarm may be issued. In this case, prevent an alarm from being issued by setting N405 (bit 4 of parameter No. 001) to 1.410

The servo position error in the stop state is larger than the value specified in parameter No. 110.Determine the mechanical cause of the large position error. If no mechanical cause is found, specify a larger value for the parameter.

MIRDC-ITS



The servo position error in the stop state is larger than the value specified in parameter No. 182.Determine the mechanical cause of the large position error. If no mechanical cause is found, apply any of the following countermeasures:Specify a larger value for the parameter.Specify a lower feedrate.Increase the time constants.412

[SVU-12, SVU-20]An overcurrent alarm is issued.This alarm is issued when an excessively large current flows in the main circuit.

MIRDC-ITS


No.LED DISPLAYCOUNTER- MEASURE412(contn)Check whether a valid motor number is specified in parameter No. 30.Check whether the standard values are specified in the current control parameters for servo control. Correct6 current control is possible only when the standard values are specified for the following parameters: No. 72, 71, 72, 78, 79, 84, 85, 86, 87, 88, 89, 90.Disconnect the power line from the servo amplifier unit connector. Then , release the emergency stop state.If the overcurrent alarm continues to be issued, replace the servo amplifier unit.If no overcurrent alarm is issued go to (4)

MIRDC-ITS


No.LED DISPLAYCOUNTER- MEASURE412(contn)Check the insulation between the ground and each of U, V and W. If the insulation is satisfactory, go to (5)If a short-circuit is detected, disconnect the power line from the motor connector. Then, check the insulation between the ground and each of U, V and W of the motor.If a short-circuit is found between the ground and U, V and W of the motor, replace the motor.If the insulation is satisfactory, replace the power line.Connect the power line. Observe the waveform of the motor current (IR, Is) while the motor is accelerating or decelerating.If the motor current (IR, IS) does not show a normal sine wave, replace the servo amplifier unit.

MIRDC-ITS


No.LED DISPLAYCOUNTER- MEASURE412(contn)Check if the motor current (IR, IS) waveforms include noise.When noise is included, take an action such as making a connection to shield ground.When noise is not included, replace the servo amplifier unit. If (1) to (4) above are not the cause of the alarm, the pulse coder, command cable, or internal hardware of the CNC may be defective.

MIRDC-ITS



A DC link overvoltage alarm is issued.This alarm is issued when the DC voltage of the main circuit power is too high.When SVU-12 or SVU-20 is used, and a separate regenerative discharge unit is not used. Check the specification to see if regenerative energy per one time does not exceed the allowable regenerative energy of the servo amplifier unit.For the SVU-40 and the SVU-80, when the separate regenerative discharge resistor is not used, check whether the CX23 connector is short-circuited with dummy connector.The supply voltage for dynamic power may exceed the rated value. Check the voltage. IF the voltage is too high, reduce the voltage to an appropriate level.

MIRDC-ITS


No.LED DISPLAYCOUNTER- MEASURE413(contn)Regenerative discharge unit may not be properly connected. Check connection.The resistance of the separate regenerative discharge If (1) to (5) are not the cause of the alarm, replace the servo amplifier unit.

MIRDC-ITS



A DC link low voltage alarm is issued.This alarm is issued when the DC voltage of the main circuit power is too low.190 ms or longer may pass from the time when both the *ESP of the built-in DI and the *ESP of the I/O link interface signal are canceled until the external magnetic contractor inserted into the input for motive power turns on (including the operating time of the magnetic contractor). The magnetic contractor must turn ON within 100 ms.The external circuit breaker may be turned OFF. Check the circuit breaker.

MIRDC-ITS


No.LED DISPLAYCOUNTER- MEASURE414(contn)The supply voltage for the dynamic power is lower than the rated value. Check the voltage. If the voltage is too low, increase it to an appropriate level.The external magnetic contractor may not be connected properly. Check the connection.If (1) to (4) are not the cause of the alarm, replace the servo amplifier unit.

MIRDC-ITS



A parameter has been specified incorrectly.Check the following parameters:No. 30: Is the specified motor type correct?No. 31: Is the specified direction of rotation of the correct?No. 106: Is the denomination of the number of pulses per single revolution of the motor 0?No. 180: Is the specified reference counter capacity 0 or a negative value?

MIRDC-ITS


No.LED DISPLAYDESCRIPTIONCOUNTER- MEASURE418A DO alarm is issued.Replace the servo amplifier unit.423

The specified speed exceeds 32767000 detection units per second.Re-examine the CMR and speed settings.425The cooling fan has stopped.This alarm is issued when the fan motor built into the servo amplifier unit has failed. The fan motor is consumable.Check the that the fan is not clogged with something.Check that the power connector of the fan is connected properly.Replace the fan or servo amplifier unit.

MIRDC-ITS


No.LED DISPLAYDESCRIPTIONCOUNTER- MEASURE446The external pulse input line is disconnected.Connect the external pulse input signal correctly.447The velocity deviation is too high (velocity control).Check the actual velocity.See the setting of parameter No. 136.

MIRDC-ITS

OVERTRAVEL ALARMSMIRDC-ITSSlide 3

No.LED DISPLAYDESCRIPTIONCOUNTER- MEASURE500The positive stroke limit has been exceeded.Check whether *+OT and *-OT are connected correctly. Check whether a correct move command is specified. Move the tool in the opposite direction in jog mode, then perform a reset.501The negative stroke limit has been exceeded.510The positive soft stroke limit has been exceeded.Check whether appropriate values have been specified for parameters No. 142 and 143. Check whether a valid move command is specified. Move the tool in the opposite direction in jog mode, the perform a reset.511The negative soft stroke limit has been exceeded.

MIRDC-ITS

SYSTEM ALARMSMIRDC-ITSSlide 3

No.LED DISPLAYDESCRIPTIONCOUNTER- MEASUREAn error was detected in the RAM write/read test at power-up.Replace the servo amplifier unit.An error was detected in the data collation check for the non-volatile memory.Turn the power off then back on. Then, re-enter the parameters. If this alarm recurs, replace the servo amplifier unit.A data transfer alarm for the non-volatile memory has been issued.Replace the servo amplifier unit.

MIRDC-ITS

SYSTEM ALARMSMIRDC-ITSSlide 3

No.LED DISPLAYDESCRIPTIONCOUNTER- MEASUREA watchdog alarm was issued.Turn the power off then back on. If this alarm recurs, replace the servo amplifier unit.A checksum alarm for the control software ROM is issued.Replace the servo amplifier unit.A data transfer alarm for the ROM that is built into the CPU is issued.Replace the servo amplifier unit.An error was detected in the control circuit.Replace the servo amplifier unit.

MIRDC-ITS

I/O ALARMMIRDC-ITSSlide 3

No.LED DISPLAYDESCRIPTIONCOUNTER- MEASUREA FANUC I/O Link error occurred. Any unit connected to the line was turned off.Turn the power to all units connected to the line. Then, turn on the slave devices, followed by the master device.

MIRDC-ITS

NO LED DISPLAYMIRDC-ITSSlide 3

No.LED DISPLAYDESCRIPTIONCOUNTER- MEASUREThe control circuit is not operating normallyCheck the 24-VDC control supply voltage. If the voltage is low, increase the voltage to an appropriate level.Check whether a fuse in the servo amplifier unit has blown. If a blown fuse is found, replace it.If (1) and (2) are not the cause, replace the servo amplifier.

MIRDC-ITS

ALARMS (Hydraulics in Lathe Machine)MIRDC-ITS

NumberMessageContents1000DETECTION SW. FOR TAILSTOCK SP.The limit switches of the tailstock axis advancing end and retreating end are simultaneously turned ON.

Check and repair the limit switches.1001DETECTION SW. FOR SPINDLE LOCKThe limit switches of the main axis fixed end and non-fixed end are simultaneously turned ON.

Check and repair the limit switches.1002DETECTION SW. FOR DOORThe limit switches of the door opening and closing end are simultaneously turned ON.

Check and repair the limit switches

MIRDC-ITS


NumberMessageContents1003DETECTION SW. FOR TAILSTOCK F/RThe limit switches of the tailstock advancing end and retreating end are simultaneously turned On.

Check and repair the limit switches.1004DETECTION SW. FOR SP. MISSIONAny two of the main axis high speed end, low speed end and neutral end are simultaneously turned ON.

Check and repair the limit switches.1023SP COND TO BE SAME AS BEFOREThe condition of the main axis when the program stopped and condition of the main axis when the cycle start button is pressed after the program stop is cleared are different.

Make the condition of the main axis the same as that when the program stopped.

MIRDC-ITS


NumberMessageContents1024CHUCK COND TO BE SAME AS BEFOREThe condition of the chuck when the program stopped and condition of the chuck axis when cycle start button is pressed after the program stop is cleared are different.

Make the condition of the main axis the same as that when the program stopped.

MIRDC-ITS


NumberMessageContents1025TTAILSTOCK SOP IS OVERThe length of the work clamped on the chuck is different or the work is not clamped. Therefore, when the tailstock is advanced, the tailstock advanced further after the advancing end switch is confirmed.

Clamp an appropriate work and advance the tailstock axis. And adjust the tailstock axis and the advancing end switch.

MIRDC-ITS


NumberMessageContents1026FORWARD THE TAILSTOCK SPINDLEThe main axis start is directed when the tailstock axis is not advanced.

Advance the tailstock axis and the main axis start.1027CLOSE THE SAFETY DOORThe door has opened when the main axis is rotating or during the automatic operation in the memory mode.

Close the door.

MIRDC-ITS


NumberMessageContents1030SELECT DOOR ILK. SW. TO EFFECTThe door interlock is disabled when the cycle start button is pressed in the memory mode.

Enable the door interlock.1031CLOSE THE SAFETY DOORThe door has open when the cycle start button is pressed in the memory mode. The door has open when the cycle start button is pressed in the interlock is disabled in the signal or MDI mode.

Close the door.

MIRDC-ITS


NumberMessageContents1032CHANGE THE GEAR TO HIGH OR LOWThe main axis start is directed when the main axis is not geared.

Gear the main axis to high speed or low speed.1033TIGHTEN TH CHUCKThe cycle start button is pressed when the chuck is loosened.

Tighten the chuck.1034TIGHTEN TH CHUCKThe main axis start button is pressed when the chuck is loosened.

Tighten the chuck.

MIRDC-ITS


NumberMessageContents1035TIGHTEN TH CHUCKThe chuck has loosened when the main axis is rotating.

Tighten the chuck.1036CHUCK IS OVER TRAVELThe diameter of the work is different or the work is not clamped.

Clamp an appropriate work.1037T-SIGNAL IS OVER VALUEOther than the usable tool number is directed.

Modify the program.

MIRDC-ITS


NumberMessageContents1040TURRET INDEXING FAILSTurret encode fails.

Contact the service engineering dept. of the supplier.1041COMMAND T-SIGNALWithout commanding T-code, M16 (Turret M17(Turret forward) or M18 random select), (Turret reverse) are commanded.

Command T-code.

MIRDC-ITS


NumberMessageContents1042PUT BACK THE TOOL-SETTERThe cycle start, automatic operation, main axis start, main axis rotating, manual tailstock axis advancing, manual application of cutting oil, or manual parts catcher start is directed when the tool setter is out.

Store the tool setter.1043THE TOOL IS BROKEN Tool damage is detected.

Replace it with new one.

MIRDC-ITS


NumberMessageContents1044B-SIGNAL IS OVER VALUEThe cycle start button is pressed when the tailstock pin is out.Return the tailstock pin.1045RETURN THE PIN OF TAILSTOCKSince the cursor is not returned to the program head.

Return it to the program head to start the program.1055PRESS PROG. EDIT MODE RESET AGAINSince the cursor is not returned to the program head.

Return it to the program head to start the program.

MIRDC-ITS


NumberMessageContents1060M10 INEFFECTIVE WHEN TAILSTOCK IS IN REV.M10 (tailstock spindle forward) is commanded though tailstock is not moved forward. Moving tailstock forward, command M101061M10 INEFF. WHEN TAILSTOCK UNCL.M10 (Tailstock spindle forward) is commanded with tailstock unclamped.

Clamp tailstock before commanding M10.1062M11 INEFFEC. WHEN SP. RUNNINGM11 (Tailstock retreating) is directed when the spindle is rotating.

Stop the spindle and direct M11.

MIRDC-ITS


NumberMessageContents1063M19 INEFFEC. WHEN GEAR IS IN NEUTRALWhen the gear of the spindle is in the neutral position, M19.B (spindle stop at the fixed position) is directed.Gear the spindle from high speed and to low speed direct M19.B.1064M24 INEFFEC. WHEN SP. RUNNINGM24 (door open) is directed when the spindle rotating.Stop the spindle and direct M24.1065M3 8/39 INEFF. WHEN TAILSTOCK FWDM38 (Tailstock forward) and M39 (Tailstock backward) is commanded with tailstock not moved backward.Move tailstock spindle backward before commanding M38 and M39.

MIRDC-ITS


NumberMessageContents1066M3 8/39 INEFF. WHEN TAILSTOCK CL.M38 (tailstock forward) and M39 (tailstock backward) is commanded with tailstock clamped.Unclamp tailstock before commanding M38 and M39.1067 M69 INEFFEC. WHEN SP. RUNNINGM69 (chuck loosening) is directed when the spindle is rotating.Stop the spindle and direct M69.1070M80/81 INEF. WHEN STEADY REST CL.M80 (vibration stop advancing) or M81 (vibration stop retreating) is directed when the vibration stop is open.Open the vibration stop and direct M80 and M81.

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NumberMessageContents1071M87 INEFFEC. WHEN TAILSTOCK FWD.M87 (Tailstock unclamp) is commanded with tailstock spindle moved backward. Move tailstock spindle backward before commanding M87.1075TAIL. SP. PRESSURE ALARMTailstock spindle pressure is reduced. Check pressure of tailstock spindle.1076BAR FEEDER UNIT FALLSPushing Alarm reset button.

Check Bar Feeder unit.

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NumberMessageContents1077M-SIGNAL IS REPETITION COMMANDMultiple M-code which is not to command in same block of program is commanded.1080HYD. MOTOR THERMAL DEFECTCheck temperature of the hydraulic motor.1081BED LUB. MOTOR THERMAL DEFECTCheck bed lubricant motor temperature.1082SP. LUB. MOTOR THERMALCheck temperature of spindle stock lubricant motor.1083COOLANT MOTOR THERMAL DEFECTCheck coolant oil motor temperature.

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NumberMessageContents1084MAIN PNEUMATIC FAILSAir pressure is reduced.Set air pressure to specified value.1085MAIN HYDRAULIC FAILSHydraulic pressure is reduced. Remove cause in which hydraulic pressure is reduced.2000CHIP-CONV. MOTOR THERMAL DEFECTCheck chip conveyor motor thermal.2001LEVEL OF BED LUB. OIL IS TOO LOWLittle bed lubricant is remaining.

Replenish bed lubrication oil.

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NumberMessageContents2002X-AXIS IS OVER TRAVELPush the release button and send the x-axis to the opposite direction of the over-travel and release it. If you push the release button, over-travel is not checked; Do not send it to the same direction. The machine may be seriously damaged2003Z-AXIS IS OVER TRAVELPush the release button and send the z-axis to the opposite direction of the over-travel and release it. If you push the release button, over-travel is not checked; Do not send it to the same direction. The machine may be seriously damaged

MIRDC-ITS


NumberMessageContents2004EMERGENCY BUTTON The emergency stop button is pushed.Turn the button to the right and release it.2005VOLTAGE OF THE BACK UP BATTERY IS TOO LOWThe voltage of the back up battery has lowered. Replace the battery after turning on the power.Note: If you take out the battery without turning on the power, the internal data may be deleted.2006MACHINE READY FAILS. PRESS MAHINE READY BUTTON AGAINPush the machine ready button. If the same alarm has occurred even after you pushed the machine ready button again, contact the service engineer of supplier.

MIRDC-ITS


NumberMessageContents2007MEASUREMENT FAILSThe trouble of measurement is detected.2010WORK CLAMP CHECK FAILSAir pressure is reduced.Set air pressure to specified value.2011TOOL LIFE IS LIMITTool life limit detected.Replace it with new one.2300FUNCTION COMMAND TRANSATC FAILSTurn on the power again and push the machine ready button. If the same alarm has occurred.

Contact the service engineer of the supplier.

MIRDC-ITS

MIRDC-ITSDS*Revision 1/3-24-03

MIRDC-ITS

cnc-preventive maintenance yao manabat

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