APPENDIX
B–64124EN/01
G. ALARM LIST
863
6) Over travel alarms
Number Message Contents
500 OVER TRAVEL : +n Exceeded the n–th axis + side stored stroke limit I.
(Parameter No.1320 or 1326 Notes)
501 OVER TRAVEL : –n Exceeded the n–th axis – side stored stroke limit I.
(Parameter No.1321 or 1327 Notes)
502 OVER TRAVEL : +n Exceeded the n–th axis + side stored stroke limit II.
(Parameter No.1322 )
503 OVER TRAVEL : –n Exceeded the n–th axis – side stored stroke limit II.
(Parameter No.1323)
506 OVER TRAVEL : +n Exceeded the n–th axis + side hardware OT.
507 OVER TRAVEL : –n Exceeded the n–th axis – side hardware OT.
510 OVER TRAVEL : +n A stroke limit check, made before starting movement, found that the end
point of a block falls within the plus (+) side inhibited area along the n–
axis defined by a stroke limit. Correct the program.
511 OVER TRAVEL : –n A stroke limit check, made before starting movement, found that the end
point of a block falls within the minus (–) side inhibited area along the
N–axis defined by a stroke limit. Correct the program.
NOTE
Parameters 1326 and 1327 are effective when EXLM (stroke limit switch signal) is on.
7) Servo alarms
Number Message Contents
600 n AXIS : INV. DC LINK OVER
CURRENT
SVM: The DC link current is too high.
b SVU: The DC link current is too high.
601 n AXIS : INV. RADIATOR FAN
FAILURE
SVM: The heat sink cooling fan is defective.
b SVU: The heat sink cooling fan is defective.
602 n AXIS : INV. OVERHEAT SVM: The servo amplifier is overheated.
603 n AXIS : INV. IPM ALARM (OH) SVM: The IPM (intelligent power module) has detected an overheat
alarm condition.
b SVU: The IPM (intelligent power module) has detected an overheat
alarm condition.
604 n AXIS : AMP. COMMUNICATION
ERROR
Communication between the SVM and PSM is abnormal.
605 n AXIS : CNV. EX. DISCHARGE
POW.
PSMR: The motor regenerative power is too high.
606 n AXIS : CNV. RADIATOR FAN
FAILURE
PSM: The fan for cooling the external heat sink is defective.
PSMR: The fan for cooling the external heat sink is defective.
607 n AXIS : CNV. SINGLE PHASE
FAILURE
PSM: One of the input power phases is abnormal.
PSMR: One of the input power phases is abnormal.
8) Overheat alarms
Number Message Contents
700 OVERHEAT: CONTROL UNIT Control unit overheat
Check that the fan motor operates normally, and clean the air filter.
701 OVERHEAT: FAN MOTOR The fan motor on the top of the cabinet for the contorl unit is overheated.
Check the operation of the fan motor and replace the motor if necessary.