
APPENDIX
B–63504EN/01
G. ALARM LIST
673
FBA : A disconnection alarm is being generated.
(This bit causes servo alarm No.416.The details are indicated in
diagnostic data No. 201)
OFA : An overflow alarm is being generated inside of digital servo.
ALD201 EXP
#7 #6 #5 #4 #3 #2 #1 #0
When OVL equal 1 in diagnostic data No.200
(servo alarm No. 400 is being generated):
ALD 0 : Motor overheating
1 : Amplifier overheating
When FBAL equal 1 in diagnostic data No.200
(servo alarm No. 416 is being generated):
ALD EXP Alarm details
1 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.
204 OFS MCC LDA PMS
#7 #6 #5 #4 #3 #2 #1 #0
OFS : A current conversion error has occured in the digital servo.
MCC : A magnetic contactor contact in the servo amplifier has welded.
LDA : The LED indicates that serial pulse coder C is defective.
PMS : A feedback pulse error has occured because the feedback cable is
defective.
6) Over travel alamrs
Number Message Contents
500 OVER TRAVEL : +n Exceeded the n–th axis (axis 1 to 8) + side stored stroke limit I.
(Parameter No.1320 or 1326 NOTE)
501 OVER TRAVEL : –n Exceeded the n–th axis (axis 1 to 8) – side stored stroke limit I.
(Parameter No.1321 or 1327 NOTE)
502 OVER TRAVEL : +n Exceeded the n–th axis (axis 1 to 8) + side stored stroke limit II.
(Parameter No.1322 )
503 OVER TRAVEL : –n Exceeded the n–th axis (axis 1 to 8) – side stored stroke limit II.
(Parameter No.1323)
504 OVER TRAVEL : +n Exceeded the n–th axis (axis 1 to 8) + side stored stroke limit III.
(Parameter No.1324 )
505 OVER TRAVEL : –n Exceeded the n–th axis (axis 1 to 8) – side stored stroke limit III.
(Parameter No.1325 )
506 OVER TRAVEL : +n Exceeded the n–th axis (axis 1 to 8) + side hardware OT.
507 OVER TRAVEL : –n Exceeded the n–th axis (axis 1 to 8) – side hardware OT.
NOTE
Over travel alarms No. 504 and No. 505 are provided only with the T series.
Parameters 1326 and 1327 are effective when EXLM(stroke limit switch signal) is on.