Series 16/18/160/180-Model C Maintenance Manual, GFZ-62755EN ...

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B. ALARM LIST APPENDIXB–62755EN/01(5) Servo alarmsNumber Message Contents400 SERVO ALARM: n–TH AXIS OVER-LOAD401 SERVO ALARM: n–TH AXIS VRDYOFF404 SERVO ALARM: n–TH AXIS VRDYON405 SERVO ALARM: (ZERO POINT RE-TURN FAULT)The n–th axis (axis 1–8) overload signal is on. Refer to diagnosis displayNo. 201 for details.The n–th axis (axis 1–8) servo amplifier READY signal (DRDY) went off.Refer to procedure of trouble shooting.Even though the n–th axis (axis 1–8) READY signal (MCON) went off,the servo amplifier READY signal (DRDY) is still on. Or, when the powerwas turned on, DRDY went on even though MCON was off.Check that the servo interface module and servo amp are connected.Position control system fault. Due to an NC or servo system fault in thereference position return, there is the possibility that reference positionreturn could not be executed correctly. Try again from the manual referenceposition return.407 SERVO ALARM: EXCESS ERROR The difference in synchronous axis position deviation exceeded the setvalue.409 SERVO ALARM: n AXIS TORQUEALM410 SERVO ALARM: n–TH AXIS – EX-CESS ERROR411 SERVO ALARM: n–TH AXIS – EX-CESS ERROR413 SERVO ALARM: n–th AXIS – LSIOVERFLOW414 SERVO ALARM: n–TH AXIS –DETECTION RELATED ERROR415 SERVO ALARM: n–TH AXIS – EX-CESS SHIFT416 SERVO ALARM: n–TH AXIS – DIS-CONNECTION417 SERVO ALARM: n–TH AXIS – PA-RAMETER INCORRECTAbnormal servo motor load has been detected. Alternatively, abnormalspindle motor load has been detected in Cs mode.The position deviation value when the n–th axis (axis 1–8) stops is largerthan the set value.Refer to procedure of trouble shooting.The position deviation value when the n–th axis (axis 1–8) moves islarger than the set value.Refer to procedure of trouble shooting.The contents of the error register for the n–th axis (axis 1–8) exceeded2 31 power. This error usually occurs as the result of an improperly setparameters.N–th axis (axis 1–8) digital servo system fault. Refer to diagnosis displayNo. 200 and No.204 for details.A speed higher than 511875 units/s was attempted to be set in the n–thaxis (axis 1–8). This error occurs as the result of improperly set CMR.Position detection system fault in the n–th axis (axis 1–8) pulse coder(disconnection alarm). Refer to diagnosis display No. 201 for details.This alarm occurs when the n–th axis (axis 1–8) is in one of the conditionslisted below. (Digital servo system alarm)1) The value set in Parameter No. 2020 (motor form) is out of the specifiedlimit.2) A proper value (111 or –111) is not set in parameter No.2022 (motorrevolution direction).3) Illegal data (a value below 0, etc.) was set in parameter No. 2023(number of speed feedback pulses per motor revolution).4) Illegal data (a value below 0, etc.) was set in parameter No. 2024(number of position feedback pulses per motor revolution).5) Parameters No. 2084 and No. 2085 (flexible field gear rate) have notbeen set.6) A value outside the limit of {1 to the number of control axes} or a non–continuous value (Parameter 1023 (servo axis number) contains avalue out of the range from 1 to the number of axes, or an isolatedvalue (for example, 4 not prceded by 3).was set in parameter No.1023 (servo axisnumber).440
B–62755EN/01APPENDIXB. ALARM LISTNumberMessageContents420 SERVO ALARM: n AXIS SYNCTORQUE(M series)421 SERVO ALARM: n AXIS EXCESSER (D)During simple synchronous control, the difference between the torquecommands for the master and slave axes exceeded the value set in parameterNo. 2031.The difference between the errors in the semi–closed loop and closedloop has become excessive during dual position feedback. Check thevalues of the dual position conversion coefficients in parameters No.2078 and 2079. Details of servoalarm No.414The details of servo alarm No. 414 are displayed in the diagnosis display(No. 200 and No.204) as shown below.200#7OVL#6LV#5OVC#4HCA#3HVA#2DCA#1FBA#0OFA#7 (OVL) : An overload alarm is being generated.#6 (LV) : A low voltage alarm is being generated in servo amp.#5 (OVC) : A overcurrent alarm is being generated inside of digital servo.#4 (HCA) : An abnormal current alarm is being generated in servo amp.#3 (HVA) : An overvoltage alarm is being generated in servo amp.#2 (DCA) : A regenerative discharge circuit alarm is being generated in servo amp.#1 (FBA) : A disconnection alarm is being generated.#0 (OFA) : An overflow alarm is being generated inside of digital servo.204#7#6OFS#5MCC#4LDA#3PMS#2 #1 #0 Details of servoalarms No. 400 andNo.416#6 (OFS) : A current conversion error has occured in the digital servo.#5 (MCC) : A magnetic contactor contact in the servo amplifier has welded.#4 (LDA) : The LED indicates that serial pulse coder C is defective#3 (PMS) : A feedback pulse error has occured because the feedback cable isdefective.The details of servo alarms No. 400 and No. 416 are displayed in thediagnosis display (No. 201) as shown below.201#7ALD#6 #5 #4EXP#3 #2 #1 #0When OVL equal 1 in diagnostic data No.200 (servo alarm No. 400 isbeing generated):#7 (ALD) 0 : Motor overheating1 : Amplifier overheatingWhen FBAL equal 1 in diagnostic data No.200 (servo alarm No. 416 isbeing generated):ALD EXP Alarm details1 0 Built–in pulse coder disconnection (hardware)1 1 Separately installed pulse coder disconnection(hardware)0 0 Pulse coder is not connected due to software.441
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GE Fanuc AutomationComputer Numeric
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B-62755EN/01PREFACEPREFACEDescripti
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Page 425 and 426: B-62755EN/01APPENDIXA. I/O UNIT MOD
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B-62755EN/01INDEXMMain CPU board, 1
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Revision RecordFANUC MAINTENANCE
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