8 Troubleshooting
8.1.1 List of Alarms
8-4
A.C51
Overtravel Detection at
Polarity Detection
The overtravel signal was detected at polarity detection.
Gr.1
Available
A.C52
Polarity Detection
Uncompleted
The linear servomotor was turned ON under the condition of
polarity detection uncompleted.
Gr.1
Available
A.C53
Out of Range for Polarity
Detection
The movement distance exceeded the set value of Pn48E
during polarity detection.
Gr.1
N/A
A.C54
Polarity Detection Error 2
The polarity detection failed.
Gr.1
N/A
A.C80
Absolute Encoder Clear Error
The data of the absolute linear scale was not properly cleared
or set.
Gr.1
N/A
A.C90
Encoder Communications
Error
Communications between the SERVOPACK and the linear
scale is not possible.
Gr.1
N/A
A.C91
Encoder Communications
Position Data Error
A linear scale position data calculation error occurred.
Gr.1
N/A
A.C92
Encoder Communications
Timer Error
An error occurs in the communications timer between the
linear scale and the SERVOPACK.
Gr.1
N/A
A.CA0
Encoder Parameter Error
Linear scale parameters are faulty.
Gr.1
N/A
A.Cb0
Encoder Echoback Error
Contents of communications with linear scale is incorrect.
Gr.1
N/A
A.CF1
Feedback Option Module
Communications Error
(Reception error)
Reception from the feedback option module is faulty.
Gr.1
N/A
A.CF2
Feedback Option Module
Communications Error (Timer
stop)
Timer for communications with the feedback option module
is faulty.
Gr.1
N/A
A.d00
Position Error Pulse Overflow
Position error pulses exceeded the value set for parameter
(Pn520) (Excessive Position Error Alarm Level).
Gr.1
Available
A.d01
Position Error Pulse Overflow
Alarm at Servo ON
Position error pulses accumulated too much.
Gr.1
Available
A.d02
Position Error Pulse Overflow
Alarm by Speed Limit at Servo
ON
After a position error pulse has been input, Pn584 limits the
speed if the servo ON command is received. If Pn584 limits
the speed in such a state, this alarm occurs when the position
references are input and the number of position error pulses
exceeds the value set for parameter Pn520 (Excessive Posi-
tion Error Alarm Level).
Gr.2
Available
A.d30
Position Data Overflow
The position feedback data exceeded
±
1879048192.
Gr.1
N/A
A.E00
Command Option Module IF
Initialization Timeout Error
Communications initialization failed between the SERVO-
PACK and the command option module.
Gr.2
Available
A.E02
Command Option Module IF
Synchronization Error 1
A synchronization error occurred between the SERVOPACK
and the command option module.
Gr.1
Available
A.E03
Command Option Module IF
Communications Data Error
An error occurred in the data of communications between
the SERVOPACK and the command option module.
Gr.1
Available
A.E40
Command Option Module IF
Communications Setting Error
An error occurred in establishing communications (settings)
between the SERVOPACK and the command option mod-
ule.
Gr.2
Available
A.E50
Command Option Module IF
Synchronization Error 2
A error occurred in synchronization between the SERVO-
PACK and the command option module.
Gr.2
Available
A.E51
Command Option Module IF
Synchronization
Establishment Error
A error occurred in establishing communications between
the SERVOPACK and the command option module.
Gr.2
Available
A.E60
Command Option Module IF
Data Communications Error
A error occurred in communications between the SERVO-
PACK and the command option module.
Gr.2
Available
A.E61
Command Option Module IF
Synchronization Error 3
There was a change in timing of synchronization between
the SERVOPACK and the command option module.
Gr.2
Available
A.E70
Command Option Module
Detection Failure
Detection of the command option module failed.
Gr.1
N/A
A.E71
Safety Option Module
Detection Failure
Detection of the safety option module failed.
Gr.1
N/A
Alarm
Display
Alarm Name
Meaning
Servomotor
Stop
Method
Alarm
Reset
