General-Purpose AC Servo. MELSERVO-J4 Servo amplifier INSTRUCTION MANUAL TROUBLE SHOOTING

General-Purpose AC Servo MELSERVO-J4 Servo amplifier INSTRUCTION MANUAL TROUBLE SHOOTING

Safey Insrucions Please read he insrucions carefully before using he equipmen. To use he equipmen correcly, do no aemp o insall, operae, mainain, or inspec he equipmen unil you have read hrough his Insrucion Manual, Insallaion guide, and appended documens carefully. Do no use he equipmen unil you have a full knowledge of he equipmen, safey informaion and insrucions. In his Insrucion Manual, he safey insrucion levels are classified ino "WARNING" and "CAUTION". WARNING CAUTION Indicaes ha incorrec handling m cause hazardous condiions, resuling in deah or severe injury. Indicaes ha incorrec handling m cause hazardous condiions, resuling in medium or sligh injury o personnel or m cause physical damage. Noe ha he CAUTION level m lead o a serious consequence according o condiions. Please follow he insrucions of boh levels because hey are imporan o personnel safey. Wha mus no be done and wha mus be done are indicaed by he following diagrammaic symbols. Indicaes wha mus no be done. For example, "No Fire" is indicaed by. Indicaes wha mus be done. For example, grounding is indicaed by. In his Insrucion Manual, insrucions a a lower level han he above, insrucions for oher funcions, and so on are classified ino "POINT". Afer reading his Insrucion Manual, keep i accessible o he operaor. A - 1

1. To preven elecric shock, noe he following WARNING Before wiring or inspecion, urn off he power and wai for 15 minues or more unil he charge lamp urns off. Then, confirm ha he volage beween P+ and N- is safe wih a volage eser and ohers. Oherwise, an elecric shock m occur. In addiion, when confirming wheher he charge lamp is off or no, alws confirm i from he fron of he servo Do no operae swiches wih we hands. Oherwise, i m cause an elecric shock. 2. To preven fire, noe he following CAUTION When you use a MR-J4 muli-axis servo amplifier, connecing an encoder for differen axis o he CN2A, CN2B, or CN2C connecor m cause a fire. 3. To preven injury, noe he following CAUTION The servo amplifier hea sink, regeneraive resisor, servo moor, ec. m be ho while power is on or for some ime afer power-off. Take safey measures, e.g. provide covers, o preven accidenal conac of hands and pars (cables, ec.) wih hem. 4. Addiional insrucions The following insrucions should also be fully noed. Incorrec handling m cause a malfuncion, injury, elecric shock, ec. (1) Wiring CAUTION Wire he equipmen correcly and securely. Oherwise, he servo moor m operae unexpecedly. To avoid a malfuncion, connec he wires o he correc phase erminals (U, V, and W) of he servo amplifier and servo moor. Connec he servo amplifier power oupu (U, V, and W) o he servo moor power inpu (U, V, and W) direcly. Do no le a magneic conacor, ec. inervene. Oherwise, i m cause a malfuncion. Servo amplifier U V W U V W Servo moor M Servo amplifier U V W Servo moor U V M W A - 2

(2) Usage CAUTION Before reseing an alarm, make sure ha he run signal of he servo amplifier is off in order o preven a sudden resar. Oherwise, i m cause an acciden. Use he servo amplifier wih he specified servo moor. (3) Correcive acions CAUTION When i is assumed ha a hazardous condiion m occur due o a power failure or produc malfuncion, use a servo moor wih an elecromagneic brake or exernal brake o preven he condiion. Configure an elecromagneic brake circui so ha i is acivaed also by an exernal EMG sop swich. Conacs mus be opened when CALM (Common malfuncion) or MBR (Elecromagneic brake inerlock) urns off. Conacs mus be opened wih he EMG sop swich. Servo moor RA B 24 V DC Elecromagneic brake When any alarm has occurred, eliminae is cause, ensure safey, and deacivae he alarm before resaring operaion. Provide an adequae proecion o preven unexpeced resar afer an insananeous power failure. <<Abou he manual>> This Insrucion Manual covers he following models. MR-J4-_A MR-J4-_B MR-J4W_-_B The symbols in he arge column mean as follows. MR-J4-_A: MR-J4-_B: MR-J4W_-_B: A - 3

MEMO A - 4

CONTENTS 1. TROUBLESHOOTING 1-1 o 1-54 1.1 Alarm and warning lis... 1-1 1.2 Remedies for alarms... 1-5 1.3 Remedies for warnings... 1-44 APPENDIX App.- 1 o App.- 1 App. 1 Deecion poins of [AL. 25], [AL. 92], and [AL. 9F]...App.- 1 1

MEMO 2

1. TROUBLESHOOTING 1.1 Alarm and warning lis When an error occurs during operaion, he corresponding alarm or warning is displed. If any alarm or warning has occurred, refer o secion 1.2 and ake he appropriae acion. When an alarm occurs, ALM (Malfuncion) will urn off. Alarm No. Name Deail displ Deail name 10 Undervolage 10.1 Volage drop in he conrol power 10.2 Volage drop in he main circui power 11 Swich seing error 11.1 Axis number seing error 11.2 Disabling conrol axis seing error 12 Memory error 1 (RAM) 12.1 RAM error 1 12.2 RAM error 2 12.3 RAM error 3 12.4 RAM error 4 12.5 RAM error 5 13 Clock error 13.1 Clock error 1 13.2 Clock error 2 14 Conrol process error 14.1 Conrol process error 1 14.2 Conrol process error 2 14.3 Conrol process error 3 14.4 Conrol process error 4 14.5 Conrol process error 5 14.6 Conrol process error 6 14.7 Conrol process error 7 14.8 Conrol process error 8 14.9 Conrol process error 9 14.A Conrol process error 10 15 Memory error 2 (EEP-ROM) 15.1 EEP-ROM error a power on 15.2 EEP-ROM error during operaion 16 Encoder iniial communicaion 16.1 Encoder iniial communicaion - Receive daa error 1 error 1 16.2 Encoder iniial communicaion - Receive daa error 2 16.3 Encoder iniial communicaion - Receive daa error 3 16.5 Encoder iniial communicaion - Transmission daa error 1 16.6 Encoder iniial communicaion - Transmission daa error 2 16.7 Encoder iniial communicaion - Transmission daa error 3 16.A Encoder iniial communicaion - Process error 1 16.B Encoder iniial communicaion - Process error 2 16.C Encoder iniial communicaion - Process error 3 16.D Encoder iniial communicaion - Process error 4 16.E Encoder iniial communicaion - Process error 5 16.F Encoder iniial communicaion - Process error 6 17 Board error 17.1 Board error 1 17.3 Board error 2 17.4 Board error 3 17.5 Board error 4 17.6 Board error 5 19 Memory error 3 (Flash-ROM) 19.1 Flash-ROM error 1 19.2 Flash-ROM error 2 1A Servo moor combinaion error 1A.1 Servo moor combinaion error 1A.2 Servo moor conrol mode combinaion error 1E Encoder iniial communicaion 1E.1 Encoder malfuncion error 2 1F Encoder iniial communicaion 1F.1 Incompaible encoder error 3 1-1

Alarm No. Name Deail displ Deail name 20 Encoder normal communicaion 20.1 Encoder normal communicaion - Receive daa error 1 error 1 20.2 Encoder normal communicaion - Receive daa error 2 20.3 Encoder normal communicaion - Receive daa error 3 20.5 Encoder normal communicaion - Transmission daa error 1 20.6 Encoder normal communicaion - Transmission daa error 2 20.7 Encoder normal communicaion - Transmission daa error 3 20.9 Encoder normal communicaion - Receive daa error 4 20.A Encoder normal communicaion - Receive daa error 5 21 Encoder normal communicaion 21.1 Encoder daa error 1 error 2 21.2 Encoder daa updae error 21.3 Encoder daa waveform error 21.4 Encoder non-signal error 21.5 Encoder hardware error 1 21.6 Encoder hardware error 2 21.9 Encoder daa error 2 24 Main circui error 24.1 Ground faul deeced by hardware deecion circui 24.2 Ground faul deeced by sofware deecion funcion 25 Absolue posiion erased 25.1 Servo moor encoder - Absolue posiion erased 27 Iniial magneic pole deecion 27.1 Magneic pole deecion - Abnormal erminaion error 27.2 Magneic pole deecion - Time ou error 27.3 Magneic pole deecion - Limi swich error 27.4 Magneic pole deecion - Esimaed error 27.5 Magneic pole deecion - Posiion deviaion error 27.6 Magneic pole deecion - Speed deviaion error 27.7 Magneic pole deecion - Curren error 28 Linear encoder error 2 28.1 Linear encoder - Environmen error 2A Linear encoder error 1 2A.1 Linear encoder error 1-1 2A.2 Linear encoder error 1-2 2A.3 Linear encoder error 1-3 2A.4 Linear encoder error 1-4 2A.5 Linear encoder error 1-5 2A.6 Linear encoder error 1-6 2A.7 Linear encoder error 1-7 2A.8 Linear encoder error 1-8 2B Encoder couner error 2B.1 Encoder couner error 1 2B.2 Encoder couner error 2 30 Regeneraive error 30.1 Regeneraion hea error 30.2 Regeneraion signal error 30.3 Regeneraion feedback signal error 31 Overspeed 31.1 Abnormal moor speed 32 Overcurren 32.1 Overcurren deeced a hardware deecion circui (during operaion) 32.2 Overcurren deeced a sofware deecion funcion (during operaion) 32.3 Overcurren deeced a hardware deecion circui (during a sop) 32.4 Overcurren deeced a sofware deecion funcion (during a sop) 33 Overvolage 33.1 Main circui volage error 34 SSCNET receive error 1 34.1 SSCNET receive daa error 34.2 SSCNET connecor connecion error 34.3 SSCNET communicaion daa error 34.4 Hardware error signal deecion 35 Command frequency error 35.1 Command frequency error 36 SSCNET receive error 2 36.1 Coninuous communicaion daa error 37 Parameer error 37.1 Parameer seing range error 37.2 Parameer combinaion error 3A Inrush curren suppression circui 3A.1 Inrush curren suppression circui error error 3E Operaion mode error 3E.1 Operaion mode error 1-2

Alarm No. Name Deail displ Deail name 42 Servo conrol error 42.1 Servo conrol error by posiion deviaion 42.2 Servo conrol error by speed deviaion 42.3 Servo conrol error by orque/hrus deviaion 45 Main circui device overhea 45.1 Main circui device overhea error 46 Servo moor overhea 46.1 Abnormal emperaure of servo moor 1 46.2 Abnormal emperaure of servo moor 2 46.3 Thermisor disconneced 46.5 Abnormal emperaure of servo moor 3 46.6 Abnormal emperaure of servo moor 4 47 Cooling fan error 47.1 Cooling fan sop error 47.2 Cooling fan speed reducion error 50 Overload 1 50.1 Thermal overload error 1 during operaion 50.2 Thermal overload error 2 during operaion 50.3 Thermal overload error 4 during operaion 50.4 Thermal overload error 1 during a sop 50.5 Thermal overload error 2 during a sop 50.6 Thermal overload error 4 during a sop 51 Overload 2 51.1 Thermal overload error 3 during operaion 51.2 Thermal overload error 3 during a sop 52 Error excessive 52.1 Excess droop pulse 1 52.3 Excess droop pulse 2 52.4 Error excessive during 0 orque limi 52.5 Excess droop pulse 3 54 Oscillaion deecion 54.1 Oscillaion deecion error 56 Forced sop error 56.2 Over speed during forced sop 63 STO iming error 63.1 STO1 off 56.3 Esimaed disance over during forced sop 63.2 STO2 off 8A USB communicaion ime-ou error 8A.1 USB communicaion ime-ou error 8E USB communicaion error 8E.1 USB communicaion receive error 888/ 88888 Wachdog 8E.2 USB communicaion checksum error 8E.3 USB communicaion characer error 8E.4 USB communicaion command error 8E.5 USB communicaion daa number error 88._/ 8888._ Wachdog 1-3

Warning No. Name Deail displ Deail name 91 Servo amplifier overhea warning 91.1 Main circui device overhea warning 92 Baery cable disconnecion 92.1 Encoder baery cable disconnecion warning warning 92.3 Baery degradaion 95 STO warning 95.1 STO1 off deecion 95.2 STO2 off deecion 96 Home posiion seing warning 96.1 In-posiion warning a home posiioning 96.2 Command inpu warning a home posiioning 96.3 Servo off warning a home posiioning 99 Sroke limi warning 99.1 Forward roaion sroke end off 99.2 Reverse roaion sroke end off 9F Baery warning 9F.1 Low baery 9F.2 Baery degradaion warning E0 Excessive regeneraion warning E0.1 Excessive regeneraion warning E1 Overload warning 1 E1.1 Thermal overload warning 1 during operaion E1.2 Thermal overload warning 2 during operaion E1.3 Thermal overload warning 3 during operaion E1.4 Thermal overload warning 4 during operaion E1.5 Thermal overload error 1 during a sop E1.6 Thermal overload error 2 during a sop E1.7 Thermal overload error 3 during a sop E1.8 Thermal overload error 4 during a sop E2 Servo moor overhea warning E2.1 Servo moor emperaure warning E3 Absolue posiion couner warning E3.1 Muli-revoluion couner ravel disance excess warning E3.2 Encoder absolue posiioning couner warning E3.5 Absolue posiion couner warning E4 Parameer warning E4.1 Parameer seing range error warning E5 ABS ime-ou warning E5.1 Time-ou during ABS daa ransfer E5.2 ABSM off during ABS daa ransfer E5.3 SON off during ABS daa ransfer E6 Servo forced sop warning E6.1 Forced sop warning E7 Conroller forced sop warning E7.1 Conroller forced sop warning E8 Cooling fan speed reducion E8.1 Decreased cooling fan speed warning warning E9 Main circui off warning E9.1 Servo-on signal on during main circui off E9.2 Bus volage drop during low speed operaion E9.3 Ready-on signal on during main circui off EA ABS servo-on warning EA.1 ABS servo-on warning EB The oher axis error warning EB.1 The oher axis error warning EC Overload warning 2 EC.1 Overload warning 2 ED Oupu wa excess warning ED.1 Oupu wa excess warning F0 Tough drive warning F0.1 Insananeous power failure ough drive warning F0.3 Vibraion ough drive warning F2 Drive recorder - Miswriing warning F2.1 Drive recorder - Area wriing ime-ou warning F2.2 Drive recorder - Daa miswriing warning F3 Oscillaion deecion warning F3.1 Oscillaion deecion warning 1-4

1.2 Remedies for alarms CAUTION When any alarm has occurred, eliminae is cause, ensure safey, and deacivae he alarm before resaring operaion. Oherwise, i m cause injury. If [AL. 25 Absolue posiion erased] occurs, alws make home posiion seing again. Oherwise, i m cause an unexpeced operaion. As soon as an alarm occurs, make he Servo-off saus and inerrup he main circui power. POINT When any of he following alarms has occurred, do no cycle he power repeaedly o resar. Doing so will cause a malfuncion of he servo amplifier and he servo moor. Remove is cause and allow abou 30 minues for cooling before resuming he operaion. [AL. 30 Regeneraive error] [AL. 45 Main circui device overhea] [AL. 46 Servo moor overhea] [AL. 50 Overload 1] [AL. 51 Overload 2] Remove he cause of he alarm in accordance wih his secion. Use MR Configuraor2 o refer o a facor of alarm occurrence. 1-5

Alarm No.: 10 Alarm conen Name: Undervolage The volage of he conrol circui power supply has dropped. The volage of he main circui power supply has dropped. 10.1 Volage drop in he conrol power 10.2 Volage drop in he main circui power (1) The connecion of he conrol circui power supply connecor (CNP2) has a failure. Check he conrol circui power supply connecor. I has a failure. I has no failure. Connec i correcly. Check (2). (2) The volage of he conrol circui power supply is low. (3) An insananeous power failure has occurred for longer ime han he specified ime. The ime will be 60 ms when [Pr. PA20] is "_ 0 ". The ime will be he value se in [Pr. PF25] when [Pr. PA20] is "_ 1 ". (1) The main circui power supply connecor (CNP1) was disconneced. (2) The volage of he main circui power supply is low. (3) The alarm has occurred during acceleraion. (4) The servo amplifier is malfuncioning. Check if he volage of he conrol circui power supply is lower han 160 V AC. Check if he power has a problem. Check he main circui power supply connecor. Check if he volage of he main circui power supply is lower han 160 V AC. Check ha he bus volage during acceleraion is 200 V DC or more. Check he bus volage value. The volage is lower han 160 V AC. The volage is higher han 160 V AC. I has a problem. I is disconneced. Review he volage of he conrol circui power supply. Check (3). Review he power. Connec i correcly. I is conneced. Check (2). The volage is lower han 160 V AC. The volage is higher han 160 V AC. The volage is less han 200 V DC. The volage is 200 V DC or more. The volage of he main circui power supply is 160 V AC or more, and he bus volage is less han 200 V DC. Increase he volage of he main circui power supply. Check (3). Increase he acceleraion ime consan. Or increase he power supply capaciy. Check (4). 1-6

Alarm No.: 11 Alarm conen Name: Swich seing error The seing of he axis selecion roary swich or auxiliary axis number seing swich is incorrec. The seing of he disabling conrol axis swich is incorrec. 11.1 Axis number seing error 11.2 Disabling conrol axis seing error (1) The seing of he Axis No. is incorrec. (1) The seing of he disabling conrol axis swich is incorrec. Check he seings of he auxiliary axis number seing swich (SW2) and axis selecion roary swich (SW1). Check he seing of he disabling conrol axis swich. When boh of he auxiliary axis number seing swiches are on, check he axis selecion roary swich if "E" is seleced for MR-J4W2, ("E" or "F" is seleced for MR- J4W2). Boh of he auxiliary axis number seing swiches are off. Check if he seing is as follows. 1) Only A-axis is disabled. 2) Only B-axis is disabled. 3) A-axis and B-axis are disabled. 4) A-axis and C-axis are disabled. The seing is oher han above. Se he axis No. correcly. Se i correcly. Alarm No.: 12 Name: Memory error 1 (RAM) Alarm conen A par (RAM) in he servo amplifier is failure. 12.1 RAM error 1 (1) A par in he servo Disconnec he cables I is repeaable. amplifier is failure. excep he conrol circui power supply, I is no repeaable. Check (2). and hen check he repeaabiliy. (2) Somehing near he device caused i. Check he power supply for noise. 12.2 RAM error 2 Check i wih he check mehod for [AL. 12.1]. 12.3 RAM error 3 12.4 RAM error 4 12.5 RAM error 5 I has a failure. Take counermeasures agains is cause. 1-7

Alarm No.: 13 Alarm conen Name: Clock error A par in he servo amplifier is failure. A clock error ransmied from he conroller occurred. 13.1 Clock error 1 (1) A par in he servo amplifier is failure. Disconnec he cables excep he conrol circui power supply, and hen check he repeaabiliy. Check if he error occurs when you connec he amplifier o he conroller. Check if he servo amplifier of he nex axis is malfuncioning. I is repeaable. I is no repeaable. Check (2). (2) A clock error I occurs. Replace he ransmied from he conroller. conroller occurred. I does no occur. Check (3). (3) The servo amplifier of he nex axis is malfuncioning. (4) Somehing near he device caused i. Check he power supply for noise. Check if he connecor is shored. 13.2 Clock error 2 Check i wih he check mehod for [AL. 13.1]. I is malfuncioning. I is no malfuncioning. I has a failure. amplifier of he nex axis. Check (4). Take counermeasures agains is cause. 1-8

Alarm No.: 14 Alarm conen Name: Conrol process error The process did no complee wihin he specified ime. 14.1 Conrol process error 1 (1) The parameer seing is incorrec. (2) Somehing near he device caused i. Check if he I is incorrec. Se i correcly. parameer seing is incorrec. I is correc. Check (2). Check he power I has a failure. Take supply for noise. counermeasures Check if he agains is cause. connecor is shored. I has no failure. Check (3). 14.2 Conrol process error 2 14.3 Conrol process error 3 14.4 Conrol process error 4 14.5 Conrol process error 5 14.6 Conrol process error 6 14.7 Conrol process error 7 14.8 Conrol process error 8 14.9 Conrol process error 9 14.A Conrol process error 10 (3) The servo amplifier is malfuncioning. amplifier, and hen check he repeaabiliy. Replace he conroller, and hen check he repeaabiliy. Check if he parameer seing is incorrec. I is no repeaable. (1) A synchronous signal I is repeaable. error ransmied from he conroller occurred. I is no repeaable. Check (2). (2) The parameer seing is incorrec. (3) Somehing near he device caused i. (4) The servo amplifier is malfuncioning. Check i wih he check mehod for [AL. 14.1]. I is incorrec. Se i correcly. I is correc. Check (3). Check he power I has a failure. Take supply for noise. counermeasures Check if he agains is cause. connecor is shored. I has no failure. Check (4). I is no repeaable. amplifier, and hen check he repeaabiliy. 1-9

Alarm No.: 15 Alarm conen Name: Memory error 2 (EEP-ROM) A par (EEP-ROM) in he servo amplifier is failure. 15.1 EEP-ROM error a power on 15.2 EEP-ROM error during operaion (1) EEP-ROM is malfuncioning a power on. Disconnec he cables excep he conrol circui power supply, and hen check he repeaabiliy. I is repeaable. I is no repeaable. Check (2). (2) Somehing near he Check he power I has a failure. Take device caused i. supply for noise. counermeasures Check if he connecor agains is cause. is shored. I has no failure. Check (3). (3) The number of wrie imes exceeded 100,000. Check if parameers has been used very frequenly. I has a failure. Change he process o use parameers less frequenly afer replacemen. (1) EEP-ROM is malfuncioning during normal operaion. Check if he error occurs when you change parameers I occurs. I does no occur. Check (2). during normal operaion. (2) A wrie error occurred while uning resuls was processed. Check if he alarm occurs afer an hour from power on. I akes an hour or more. I akes less han an hour. Check (3). (3) Somehing near he I has a failure. device caused i. Check he power supply for noise. Check if he connecor is shored. Take counermeasures agains is cause. Alarm No.: 16 Name: Encoder iniial communicaion error 1 Alarm conen Communicaion error occurred beween encoder and servo 16.1 Encoder iniial (1) An encoder cable is Check if he encoder I has a failure. Replace or repair he communicaion malfuncioning. cable is disconneced cable. - Receive daa or shored. error 1 I has no failure. Check (2). 16.2 Encoder iniial communicaion - Receive daa error 2 (2) The servo amplifier is malfuncioning. (3) An encoder is malfuncioning. (4) Somehing near he device caused i. amplifier, and hen check he repeaabiliy. moor or linear encoder, and hen check he repeaabiliy. Check he noise, ambien emperaure, vibraion, ec. Check i wih he check mehod for [AL. 16.1]. I is no repeaable. I is repeaable. Check (3). I is no repeaable. moor. I is repeaable. Check (4). I has a failure. Take counermeasures agains is cause. 1-10

Alarm No.: 16 Name: Encoder iniial communicaion error 1 Alarm conen Communicaion error occurred beween encoder and servo 16.3 Encoder iniial communicaion - Receive daa (1) An axis no used is no se as disabled-axis. Check he seing of he disabling conrol axis swich (SW2). error 3 (2) An encoder cable was disconneced. I is no se as disabled-axis. I is se as disabledaxis. I is no conneced. Se i as disabledaxis. Check (2). Check if he encoder cable is conneced correcly. I is conneced. Check (3). Connec i correcly. (3) The parameer seing of wo-wire ype/fourwire Check he parameer seing. The seing is incorrec. Se i correcly. ype is incorrec. Type A: [Pr. PC22] Type B: [Pr. PC04] The seing is correc. Check (4). (4) An encoder cable is malfuncioning. Check if he encoder cable is disconneced or shored. I has a failure. I has no failure. Replace or repair he cable. Check (5). (5) The volage of he conrol circui power supply has been unsable. (6) The servo amplifier is malfuncioning. (7) An encoder is malfuncioning. (8) Somehing near he device caused i. Check he volage of he conrol circui power supply. amplifier, and hen check he repeaabiliy. moor, and hen check he repeaabiliy. Check he noise, ambien emperaure, vibraion, ec. 16.5 Encoder iniial Check i wih he check mehod for [AL. 16.1]. communicaion - Transmission daa error 1 16.6 Encoder iniial communicaion - Transmission daa error 2 16.7 Encoder iniial communicaion - Transmission daa error 3 The conrol circui power supply has been an insananeous power failure. Review he power and relaed pars. I has no failure. Check (6). I is no repeaable. I is repeaable. Check (7). I is no repeaable. moor. I is repeaable. Check (8). I has a failure. Take counermeasures agains is cause. 1-11

Alarm No.: 16 Name: Encoder iniial communicaion error 1 Alarm conen Communicaion error occurred beween encoder and servo 16.A Encoder iniial (1) The servo amplifier is communicaion - malfuncioning. Process error 1 (2) An encoder is malfuncioning. (3) Somehing near he device caused i. amplifier, and hen check he repeaabiliy. I is no repeaable. I is repeaable. Check (2). I is no repeaable. moor, and hen check moor. he repeaabiliy. I is repeaable. Check (3). Check he noise, ambien emperaure, vibraion, ec. 16.B Encoder iniial Check i wih he check mehod for [AL. 16.A]. communicaion - Process error 2 16.C Encoder iniial communicaion - Process error 3 16.D Encoder iniial communicaion - Process error 4 16.E Encoder iniial communicaion - Process error 5 16.F Encoder iniial communicaion - Process error 6 I has a failure. Take counermeasures agains is cause. 1-12

Alarm No.: 17 Alarm conen Name: Board error A par in he servo amplifier is malfuncioning. 17.1 Board error 1 (1) A curren deecion circui is malfuncioning. Check if he alarm occurs during he servo-on saus. I occurs. I does no occur. Check (2). (2) Somehing near he Check he noise, I has a failure. Take device caused i. ambien emperaure, counermeasures ec. agains is cause. 17.3 Board error 2 Check i wih he check mehod for [AL. 17.1]". 17.4 Board error 3 (1) The servo amplifier Disconnec he cables I is repeaable. recogniion signal was excep he conrol no read properly. circui power supply, I is no repeaable. Check (2). and hen check he repeaabiliy. (2) Somehing near he I has a failure. device caused i. Check he noise, ambien emperaure, ec. Take counermeasures agains is cause. 17.5 Board error 4 (1) The seing value of he roary swich (SW1) Disconnec he cables excep he conrol I is repeaable. was no read properly. circui power supply, and hen check he I is no repeaable. Check (2). repeaabiliy. (2) Somehing near he I has a failure. device caused i. Check he noise, ambien emperaure, ec. Take counermeasures agains is cause. 17.6 Board error 5 (1) The seing value of he DIP swiches (SW2) was no read properly. Disconnec he cables excep he conrol circui power supply, and hen check he repeaabiliy. I is repeaable. I is no repeaable. Check (2). (2) Somehing near he I has a failure. device caused i. Check he noise, ambien emperaure, ec. Take counermeasures agains is cause. 1-13

Alarm No.: 19 Alarm conen Name: Memory error 3 (Flash-ROM) A par (Flash-ROM) in he servo amplifier is failure. 19.1 Flash-ROM error 1 19.2 Flash-ROM error 2 (1) The Flash-ROM is malfuncioning. (2) Somehing near he device caused i. Disconnec he cables excep he conrol circui power supply, and hen check he repeaabiliy. Check he noise, ambien emperaure, ec. Check i wih he check mehod for [AL. 19.1]. I is repeaable. I is no repeaable. Check (2). I has a failure. Take counermeasures agains is cause. Alarm No.: 1A Name: Servo moor combinaion error Alarm conen The combinaion of servo amplifier and servo moor is incorrec. 1A.1 Servo moor (1) The servo amplifier and Check he model The combinaion is combinaion he servo moor was incorrec. error conneced incorrecly. 1A.2 Servo moor conrol mode combinaion error (2) The seing of [Pr. PA01] is no corresponding o he conneced servo moor. (3) An encoder is malfuncioning. (1) The seing of [Pr. PA01] is no corresponding o he conneced servo moor. name of he servo moor and corresponding servo Check he [Pr. PA01] seing. Roary servo moor: " 0 _" Linear servo moor: " 4 _" Direc drive moor: " 6 _" moor, and hen check he repeaabiliy. Check he [Pr. PA01] seing. Roary servo moor: " 0 _" Linear servo moor: " 4 _" Direc drive moor: " 6 _" The combinaion is correc. The combinaion is incorrec. The combinaion is correc. I is no repeaable. The combinaion is incorrec. Use hem in he correc combinaion. Check (2). Se [Pr. PA01] correcly. Check (3). moor. Se [Pr. PA01] correcly. Alarm No.: 1E Name: Encoder iniial communicaion error 2 Alarm conen An encoder is malfuncioning. 1E.1 Encoder (1) An encoder is I is no repeaable. malfuncion malfuncioning. moor, and hen moor. check he I is repeaable. Check (2). repeaabiliy. (2) Somehing near he device caused i. Check he noise, ambien emperaure, vibraion, ec. I has a failure. Take counermeasures agains is cause. 1-14

Alarm No.: 1F Name: Encoder iniial communicaion error 3 Alarm conen The conneced encoder is no compaible wih he servo 1F.1 Incompaible encoder (1) A servo moor or linear encoder, which is no compaible wih he servo amplifier, was conneced. (2) The sofware version of he servo amplifier does no suppor he servo moor or linear encoder. (3) An encoder is malfuncioning. Check he model he servo moor/linear encoder. I is no compaible wih he servo I is compaible wih he servo Check if he sofware I is no suppored. version suppors he servo moor/linear encoder. moor or linear encoder, and hen check he repeaabiliy. Replace i wih a compaible one. Check (2). amplifier o one which sofware version suppors he servo moor/linear encoder. I is suppored. Check (3). I is no repeaable. moor or linear encoder. I is repeaable. 1-15

Alarm No.: 20 Name: Encoder normal communicaion error 1 Alarm conen Communicaion error occurred beween encoder and servo 20.1 Encoder normal communicaion (1) An encoder cable is malfuncioning. - Receive daa error 1 (2) The servo amplifier is malfuncioning. 20.2 Encoder normal communicaion - Receive daa error 2 20.3 Encoder normal communicaion - Receive daa error 3 20.5 Encoder normal communicaion - Transmission daa error 1 20.6 Encoder normal communicaion - Transmission daa error 2 20.7 Encoder normal communicaion - Transmission daa error 3 20.9 Encoder normal communicaion - Receive daa error 4 20.A Encoder normal communicaion - Receive daa error 5 (3) An encoder is malfuncioning. (4) Somehing near he device caused i. Check if he encoder I has a failure. Repair or replace he cable is disconneced cable. or shored. I has no failure. Check (2). amplifier, and hen check he repeaabiliy. moor or linear encoder, and hen check he repeaabiliy. Check he noise, ambien emperaure, vibraion, ec. Check i wih he check mehod for [AL. 20.1]. I is no repeaable. I is repeaable. Check (3). I is no repeaable. moor or linear encoder. I is repeaable. Check (4). I has a failure. Take counermeasures agains is cause. 1-16

Alarm No.: 21 Name: Encoder normal communicaion error 2 Alarm conen The encoder deeced an error signal. 21.1 Encoder daa error 1 21.2 Encoder daa updae error 21.3 Encoder daa waveform error 21.4 Encoder nonsignal error 21.5 Encoder hardware error 1 21.6 Encoder hardware error 2 21.9 Encoder daa error 2 (1) The encoder deeced a high speed/acceleraion rae due o an oscillaion or oher facors. (2) An encoder is malfuncioning. (3) Somehing near he device caused i. (1) An encoder is malfuncioning. (2) Somehing near he device caused i. Decrease he loop gain, and hen check he repeaabiliy. moor, and hen check he repeaabiliy. Check he noise, ambien emperaure, vibraion, ec. moor, and hen check he repeaabiliy. Check he noise, ambien emperaure, ec. Check i wih he check mehod for for [AL. 21.2]. I is no repeaable. Use he encoder wih low loop gain. I is repeaable. Check (2). I is no repeaable. moor. I is repeaable. Check (3). I has a failure. Take counermeasures agains is cause. I is no repeaable. moor. I is repeaable. Check (2). I has a failure. Take counermeasures agains is cause. (1) A signal of he linear Check if he linear I has a failure. Review he wiring. encoder has no been encoder cable is inpued. wired correcly. I has no failure. Check (2). (2) Somehing near he device caused i. Check he noise, ambien emperaure, ec. Check i wih he check mehod for [AL. 21.2]. Check i wih he check mehod for [AL. 21.1]. I has a failure. Take counermeasures agains is cause. 1-17

Alarm No.: 24 Alarm conen Name: Main circui error A ground faul occurred on he servo moor power lines. A ground faul occurred a he servo moor. 24.1 Ground faul deeced by (1) The servo amplifier is malfuncioning. hardware deecion circui 24.2 Ground faul deeced by sofware deecion funcion (2) A ground faul or shor occurred a he servo moor power cable. (3) A ground faul occurred a he servo moor. Disconnec he servo moor power cables (U, V, and W) and check if he alarm occurs. Check if only he servo moor power cable is shored. Disconnec he servo moor power cables on moor side, and check insulaion of he moor (beween U, V, W, and ). Shu off he power, and check if he main circui power supply cable and servo moor power cable are in conac. Check he noise, ambien emperaure, ec. I occurs. I does no occur. Check (2). I is shored. moor power cable. I is no shored. Check (3). I is shored. moor. I is no shored. Check (4). (4) The main circui power They are in conac. Correc he wiring. supply cable and servo moor power cable were shored. Check (5). (5) Somehing near he device caused i. Check i wih he check mehod for [AL. 24.1]. They are no in conac. I has a failure. Take counermeasures agains is cause. 1-18

Alarm No.: 25 Alarm conen Name: Absolue posiion erased Absolue posiion daa in error Power was swiched on for he firs ime in he absolue posiion deecion sysem. 25.1 Servo moor encoder - Absolue posiion erased (1) Power was swiched on for he firs ime in he absolue posiion deecion sysem. (2) The baery was removed (replaced) when he conrol circui power supply was off. Check if his is he firs ime in he absolue posiion deecion sysem. Check if he baery was removed (changed) when he conrol circui power supply was off. This is he firs ime. This is no he firs ime. I was removed. Check ha he baery is mouned, and make home posiion reurn. Check (2). Check ha he baery is mouned, and make home posiion reurn. I was no removed. Check (3). (3) The baery volage is low. The baery is Check he baery volage wih a eser. I is less han DC 3.0 V. Replace he baery. consumed. I is DC 3.0 V or more. Check (4). (4) The volage drop of he baery cable is large. Check if a recommended wire is I is no used. Use a recommended wire. used. I is used. Check (5). (5) A baery cable is malfuncioning. (6) There is a loose connecion of he encoder cable on he servo moor side. Check for he loose connecion wih a eser. I has a failure. Replace he baery cable. I has no failure. Check (6). Check for he loose I has a failure. Repair or replace he connecion wih a encoder cable. eser. Measure he volage on he servo moor side. I has no failure. Check (7). Check if he absolue posiion sorage uni posiion sorage uni is conneced correcly. correcly. I is conneced. Check (8). (7) The absolue posiion I is no conneced. Connec he absolue sorage uni was no conneced for using a direc drive moor. (8) The servo amplifier is malfuncioning. (9) An encoder is malfuncioning. amplifier, and hen check he repeaabiliy. moor, and hen check he repeaabiliy. I is no repeaable. I is repeaable. Check (9). I is no repeaable. moor. 1-19

Alarm No.: 27 Alarm conen Name: Iniial magneic pole deecion error The iniial magneic pole deecion was no compleed properly. 27.1 Magneic pole deecion - (1) A moving par collided agains he machine. Abnormal erminaion 27.2 Magneic pole deecion - Time ou error 27.3 Magneic pole deecion - Limi swich error 27.4 Magneic pole deecion - Esimaed error 27.5 Magneic pole deecion - Posiion deviaion error 27.6 Magneic pole deecion - Speed deviaion error 27.7 Magneic pole deecion - Curren error (2) The wiring of he servo moor power cable is incorrec. Check if i collided. I collided. Move he sar posiion of he magneic pole deecion. I did no collided. Check (2). Check if he wiring of I has a failure. Correc he wiring. he servo moor power cable is correc. I has no failure. Check (3). Check he seing of Se i correcly. [Pr. PL02] and [Pr. incorrec. PL03]. The seing is correc. Check (4). (3) The linear encoder The seing is resoluion seing differs from he seing value. (4) The direcion of Check polariies of The mouning mouning linear direcion is incorrec. encoder is incorrec. (5) The magneic pole deecion volage level is small. (1) Only one of he limi swiches of FLS/RLS is on. (2) The magneic pole deecion volage level is small. (1) Boh of he limi swiches of FLS/RLS are on during he magneic pole deecion. he linear encoder and he linear servo moor. Check if he ravel disance during he magneic pole deecion is oo shor (for a posiion deecion mehod). Check if he ravel disance during he magneic pole deecion is oo long or if a vibraion is occurring (for a minue posiion deecion mehod). Check he limi swiches. Check if he ravel disance during he magneic pole deecion is oo shor (for a posiion deecion mehod). Check he limi swiches. Check i wih he check mehod for [AL. 27.1]. The mouning direcion is correc. I is oo shor. The ravel disance is oo long or a vibraion is occurring. Moun i correcly. Check (5). Increase i wih he [Pr. PL09] seing. Review he [Pr. PL17] seing. I has a failure. Remove he cause. Move he sar posiion of he magneic pole deecion. I has no failure. Check (2). I is oo shor. Increase i wih he [Pr. PL09] seing. Boh of hem are off. Turn on he limi swiches. 1-20

Alarm No.: 28 Name: Linear encoder error 2 Alarm conen Working environmen of linear encoder is no normal. 28.1 Linear encoder - Environmen error (1) The ambien emperaure of he linear encoder is ou of specificaions. (2) The signal level of he linear encoder has dropped. Check he ambien emperaure of he linear encoder. Check he mouning condiion of he linear encoder. I is ou of specificaions. I is wihin specificaions. I has a failure. Lower he emperaure. Conac he linear encoder manufacurer. Check (2). Correc he mouning mehod of he linear encoder. Alarm No.: 2A Name: Linear encoder error 1 Alarm conen An error of he linear encoder was deeced. (The deails differ depending on he linear encoder manufacurer.) 2A.1 Linear encoder (1) Mouning condiion of Adjus he posiions of I is no repeaable. Use he equipmen a error 1-1 he linear encoder and he scale and head, he adjused posiion. head is failure. and hen check he I is repeaable. Check (2). repeaabiliy. (2) Somehing near he I has a failure. device caused i. 2A.2 Linear encoder error 1-2 2A.3 Linear encoder error 1-3 2A.4 Linear encoder error 1-4 2A.5 Linear encoder error 1-5 2A.6 Linear encoder error 1-6 2A.7 Linear encoder error 1-7 2A.8 Linear encoder error 1-8 (3) An alarm of he linear encoder was deeced. Check he noise, ambien emperaure, vibraion, ec. Check he conen of he alarm deail lis of he Linear Encoder Insrucion Manual. Check i wih he check mehod for [AL. 2A.1]. Take counermeasures agains is cause. I has no failure. Check (3). Remove is cause described in he insrucion manual. Conac each encoder manufacurer for how o deal wih i. 1-21

Alarm No.: 2B Alarm conen Name: Encoder couner error Daa which encoder creaed is failure. 2B.1 Encoder couner error 1 2B.2 Encoder couner error 2 (1) An encoder cable is malfuncioning. (2) Somehing near he device caused i. (3) An encoder is malfuncioning. Check if he encoder cable is disconneced I has a failure. Repair or replace he cable. or shored. I has no failure. Check (2). Check he noise, I has a failure. Take ambien emperaure, counermeasures vibraion, ec. agains is cause. I has no failure. Check (3). Replace he direc drive moor, and hen check he repeaabiliy. Check i wih he check mehod for [AL. 2B.1]. I is no repeaable. Replace he direc drive moor. Alarm No.: 30 Name: Regeneraive error Alarm conen Permissible regeneraive power of he buil-in regeneraive resisor or regeneraive opion is exceeded. A regeneraive ransisor in he servo amplifier is malfuncioning. 30.1 Regeneraion hea error (1) The seing of he regeneraive resisor (regeneraive opion) is Check he regeneraive resisor (regeneraive opion) The seing value is incorrec. I is se correcly. Se i correcly. Check (2). incorrec. and [Pr. PA02] seing. (2) The regeneraive Check if he I is no conneced Connec i correcly. 30.2 Regeneraion signal error resisor (regeneraive opion) is no conneced. (3) Power supply volage high. (4) The regeneraive load raio has been over 100%. (1) A deecion circui of he servo amplifier is malfuncioning. 30.3 Regeneraion (1) A deecion circui of feedback signal he servo amplifier is error malfuncioning. (2) Somehing near he device caused i. regeneraive resisor (regeneraive opion) is conneced correcly. Check he inpu power supply volage. Check he regeneraive load raio when alarm occurs. Check if he regeneraive resisor (regeneraive opion) is overheaing. Remove he regeneraive opion or buil-in regeneraive resisor and hen check if he alarm occur a power on. Check he noise, ground faul, ambien emperaure, ec. correcly. I is conneced correcly. I is 240 V AC or more. I is less han 240 V AC. I is 100% or more. I is overheaing abnormally. The alarm occurs. The alarm does no occur. I has a failure. Check (3). Reduce he power supply volage. Check (4). Reduce he frequency of posiioning. Reduce he load. Use a regeneraive opion if no being using. Review he regeneraive opion capaciy. Check (2). Take counermeasures agains is cause. 1-22

Alarm No.: 31 Alarm conen Name: Overspeed The servo moor seed has exceeded he permissible insananeous speed. The linear servo moor seed has exceeded he permissible insananeous speed. 31.1 Abnormal (1) The command pulse moor speed frequency is high. (2) The command from he conroller is excessive. (3) A larger speed command han he overspeed alarm level was inpued. (4) The servo moor was a he maximum orque (maximum hrus) a he ime of acceleraion. (5) The servo sysem is unsable and oscillaing. (6) The velociy waveform has oversho. (7) The connecion desinaion of he encoder cable is incorrec. (8) The encoder or liner encoder is malfuncioning. Check he command pulse frequency. Check if he command from he conroller is over he permissible speed. Check ha he acual moor speed is higher han he seing value of [Pr. PC08 Overspeed alarm deecion level]. Check if he orque (hrus) a he ime of acceleraion is he maximum orque (maximum hrus). Check if he servo moor is oscillaing. The command pulse frequency is high. The command pulse frequency is low. I is over he permissible speed. I is less han he permissible speed. The moor speed is higher han he overspeed alarm deecion level. The moor speed is lower han he overspeed alarm level. I is he maximum orque (maximum hrus). I is less han he maximum orque (maximum hrus). I is oscillaing. Check operaion paern. Check (3). Check operaion paern. Check (3). Review he [Pr. PC08] seing. Check (4). Increase he acceleraion/decelera ion ime consan. Or reduce he load. Check (5). Adjus he servo gain. Or reduce he load. I is no oscillaing. Check (6). Check if i is I is overshooing. Increase he overshooing because acceleraion/decelera he acceleraion ime ion ime consan. consan is oo shor. I is no overshooing. Check (7). Check he connecion I is no correc. Wire i correcly. desinaions of CN2A, CN2B, and CN2C. Check if he alarm is occurring during less han permissible insananeous speed. I is correc. Check (8). I is occurring during less han permissible insananeous speed. moor or linear encoder. 1-23

Alarm No.: 32 Alarm conen Name: Overcurren Curren ha flew is higher han he permissible curren of he servo 32.1 Overcurren deeced a (1) The servo amplifier is malfuncioning. hardware deecion circui (during operaion) (2) A ground faul or shor occurred a he servo moor power cable. (3) The servo moor is malfuncioning. (4) The dynamic brake is malfuncioning. Disconnec he servo moor power cables (U, V, and W) and check if he alarm occurs. Check if only he servo moor power cable is shored. Disconnec he servo moor power cables on moor side, and check insulaion of he moor (beween U, V, W, and ). Check if he error occurs when you urn on he servo-on command. Check he connecion desinaions of CN2A, CN2B, and CN2C. I occurs. I does no occur. Check (2). I is shored. moor power cable. I is no shored. Check (3). A ground faul is occurring. A ground faul is no occurring. moor. Check (4). I occurs. I does no occur. Check (5). (5) The connecion desinaion of he encoder cable is incorrec. I is no correc. I is correc. Wire i correcly. Check (6). (6) Somehing near he device caused i. Check he noise, ambien emperaure, ec. I has a failure. Take counermeasures agains is cause. 1-24

Alarm No.: 32 Alarm conen Name: Overcurren Curren ha flew is higher han he permissible curren of he servo 32.2 Overcurren deeced a (1) The servo gain is high. Check if an oscillaion is occurring. sofware deecion funcion (during operaion) 32.3 Overcurren deeced a hardware deecion circui (during a sop) 32.4 Overcurren deeced a sofware deecion funcion (during a sop) (2) The servo amplifier is malfuncioning. (3) A ground faul or shor occurred a he servo moor power cable. (4) The servo moor is malfuncioning. Disconnec he servo moor power cables (U, V, and W) and check if he alarm occurs. Check if only he servo moor power cable is shored. Disconnec he servo moor power cables on moor side, and check insulaion of he moor (beween U, V, W, and ). Check he connecion desinaions of CN2A, CN2B, and CN2C. An oscillaion is occurring. An oscillaion is no occurring. Reduce he speed loop gain ([Pr. PB09]). Check (2). I occurs. I does no occur. Check (3). I is shored. moor power cable. I is no shored. Check (4). A ground faul is occurring. A ground faul is no occurring. moor. Check (5). (5) The connecion desinaion of he encoder cable is incorrec. I is no correc. I is correc. Connec i correcly. Check (6). (6) Somehing near he device caused i. Check he noise, ambien emperaure, ec. Check i wih he check mehod for [AL. 32.1]. Check i wih he check mehod for [AL. 32.2]. I has a failure. Take counermeasures agains is cause. 1-25

Alarm No.: 33 Alarm conen Name: Overvolage The value of he bus volage exceeded 400 V DC. 33.1 Main circui volage error (1) The seing of he regeneraive resisor (regeneraive opion) is incorrec. Check he regeneraive resisor (regeneraive opion) and [Pr. PA02] seing. The seing value is incorrec. I is se correcly. Se i correcly. Check (2). (2) The regeneraive Check if he I is no conneced Connec i correcly. resisor (regeneraive opion) is no conneced. (3) Wire breakage of builin regeneraive resisor or regeneraive opion (4) The regeneraion capaciy is insufficien. (5) Power supply volage high. (6) Somehing near he device caused i. regeneraive resisor (regeneraive opion) is conneced correcly. Measure he resisance of he builin regeneraive resisor or regeneraive opion. Se a larger deceleraion ime consan, and hen check he repeaabiliy. Check he inpu volage. Check he noise, ambien emperaure, ec. correcly. I is conneced correcly. The resisance is abnormal. The resisance is normal. I is no repeaable. Check (3). When using a buil-in regeneraive resisor, replace he servo When using a regeneraive opion, replace he regeneraive opion. Check (4). When using a buil-in regeneraive resisor, use a regeneraive opion. When using a regeneraive opion, use a larger capaciy one. I is repeaable. Check (5). I is over 264 V AC. Reduce he inpu volage. I is 264 V AC or less. Check (6). I has a failure. Take counermeasures agains is cause. 1-26

Alarm No.: 34 Name: SSCNET receive error 1 Alarm conen An error occurred in SSCNET III/H communicaion. (coninuous communicaion error wih 3.5 ms inerval) 34.1 SSCNET receive daa error 34.2 SSCNET connecor connecion error 34.3 SSCNET communicaion daa error 34.4 Hardware error signal deecion (1) The SSCNET III cable is disconneced. (2) The surface a he end of SSCNET III cable go diry. (3) The SSCNET III cable is broken or severed. Check he SSCNET III cable connecion. Wipe off he dir from he cable ip, and hen check he repeaabiliy. Check if he SSCNET III cable is malfuncioning. I is disconneced. Turn off he conrol circui power supply of he servo amplifier, and hen connec he SSCNET III cable. I is conneced. Check (2). I is no repeaable. Take measure o keep he cable ip clean. I is repeaable. Check (3). I has a failure. Replace he SSCNET III cable. I has no failure. Check (4). (4) A vinyl ape is sacked o he SSCNET III cable. Or a wire Check if a vinyl ape is used. Check if he cable is conacing I is used. They are in conac. Take counermeasures agains is cause. insulaor conaining wih oher cables. I is no used. They Check (5). migraing plasicizer is are no in conac. adhered o he cable. (5) The servo amplifier is malfuncioning. amplifier, and hen check he repeaabiliy. Replace he previous and nex servo amplifier of he alarm occurred axis, and hen check he repeaabiliy. Replace he conroller, and hen check he repeaabiliy. Check he noise, ambien emperaure, ec. I is no repeaable. I is repeaable. Check (6). (6) The previous or nex axis servo amplifier of he alarm occurred is malfuncioning. I is no repeaable. I is repeaable. Check (7). (7) The conroller is malfuncioning. (8) Somehing near he device caused i. Check i wih he check mehod for [AL. 34.1]. I is no repeaable. Replace he conroller. I is repeaable. Check (8). I has a failure. Take counermeasures agains is cause. 1-27

Alarm No.: 35 Alarm conen Name: Command frequency error Inpu pulse frequency of command pulse is oo high. 35.1 Command frequency error (1) The command pulse frequency is high. (2) The command from he conroller is excessive. (3) The conroller is malfuncioning. (4) Somehing near he device caused i. Check he command pulse frequency. Check if he command from he conroller is over he permissible speed. Replace he conroller, and hen check he repeaabiliy. Check he noise, ambien emperaure, ec. The command pulse frequency is high. The command pulse frequency is low. I is over he permissible speed. I is less han he permissible speed. I is no repeaable. Check operaion paern. Check (4). Check operaion paern. Check (3). Replace he conroller. I is repeaable. Check (4). I has a failure. Take counermeasures agains is cause. 1-28

Alarm No.: 36 Name: SSCNET receive error 2 Alarm conen An error occurred in SSCNET III/H communicaion. (inermien communicaion error wih abou 70 ms inerval) 36.1 Coninuous communicaion daa error (1) The SSCNET III cable is disconneced. (2) The surface a he end of SSCNET III cable go diry. Check he SSCNET III cable connecion. Wipe off he dir from he cable ip, and hen check he repeaabiliy. I is disconneced. Turn off he conrol circui power supply of he servo amplifier, and hen connec he SSCNET III cable. I is conneced. Check (2). I is no repeaable. Take measure o keep he cable ip clean. I is repeaable. Check (3). (3) The SSCNET III cable is broken or severed. Check if he SSCNET III cable is malfuncioning. I has a failure. I has no failure. Replace he SSCNET III cable. Check (4). (4) A vinyl ape is sacked Check if a vinyl ape I is used. They are in conac. Take counermeasures agains is cause. o he SSCNET III cable. Or a wire insulaor conaining migraing plasicizer is adhered o he cable. (5) The servo amplifier is malfuncioning. is used. Check if he cable is conacing wih oher cables. amplifier, and hen check he repeaabiliy. Replace he previous and nex servo amplifier of he alarm occurred axis, and hen check he repeaabiliy. Replace he conroller, and hen check he repeaabiliy. Check he noise, ambien emperaure, ec. I is no used. They are no in conac. Check (5). I is no repeaable. I is repeaable. Check (6). (6) The previous or nex I is no repeaable. axis servo amplifier of he alarm occurred is malfuncioning. I is repeaable. Check (7). (7) The conroller is malfuncioning. (8) Somehing near he device caused i. I is no repeaable. Replace he conroller. I is repeaable. Check (8). I has a failure. Take counermeasures agains is cause. 1-29