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9 Troubleshooting
9.1.1 List of Alarms
Alarm
Alarm Name
Number
A.b31
Current Detection Error 1
A.b32
Current Detection Error 2
A.b33
Current Detection Error 3
A.bF0
System Alarm 0
A.bF1
System Alarm 1
A.bF2
System Alarm 2
A.bF3
System Alarm 3
A.bF4
System Alarm 4
A.C10
Servo Overrun Detected
Absolute Encoder Clear
A.C80
Error and Multiturn Limit
Setting Error
Encoder Communications
A.C90
Error
Encoder Communications
A.C91
Position Data Error
Encoder Communications
A.C92
Timer Error
A.CA0
Encoder Parameter Error
A.Cb0
Encoder Echoback Error
Multiturn Limit
A.CC0
Disagreement
Feedback Option Module
A.CF1
Communications Error
(Reception error)
Feedback Option Module
A.CF2
Communications Error
(Timer stop)
A.d00
Position Error Overflow
Position Error Overflow
A.d01
Alarm at Servo ON
Position Error Overflow
A.d02
Alarm by Speed Limit at
Servo ON
Motor-load Position Error
A.d10
Overflow
Command Option Module
A.E00
IF Initialization Timeout
Error
Command Option Module
A.E02
IF Synchronization Error 1
Command Option Module
A.E03
IF Communications Data
Error
Command Option Module
A.E40
IF Communications Setting
Error
Command Option Module
A.E50
IF Synchronization Error 2
9-4
Meaning
The current detection circuit for phase U is faulty.
The current detection circuit for phase V is faulty.
The detection circuit for the current is faulty.
"Internal program error 0" of the SERVOPACK occurred.
"Internal program error 1" of the SERVOPACK occurred.
"Internal program error 2" of the SERVOPACK occurred.
"Internal program error 3" of the SERVOPACK occurred.
"Internal program error 4" of the SERVOPACK occurred.
The servomotor ran out of control.
The multiturn for the absolute encoder was not properly cleared or
set.
Communications between the SERVOPACK and the encoder is not
possible.
An encoder position data calculation error occurred.
An error occurs in the communications timer between the encoder
and the SERVOPACK.
Encoder parameters are faulty.
Contents of communications with encoder are incorrect.
Different multiturn limits have been set in the encoder and the SER-
VOPACK.
Reception from the Feedback Option Module is faulty.
Timer for communications with the Feedback Option Module is
faulty.
Position error exceeded the value of excessive position error alarm
level (Pn520) when the servomotor power is ON.
This alarm occurs if the servomotor power is turned ON when the
position error is greater than the set value of Pn526 while the servo-
motor power is OFF.
When the position errors remain in the error counter, Pn529 limits
the speed if the servomotor power is turned ON. If Pn529 limits the
speed in such a state, this alarm occurs when position references are
input and the number of position errors exceeds the value set for the
excessive position error alarm level (Pn520).
During fully-closed loop control, the position error between motor
and load is excessive.
Communications initialization failed between the SERVOPACK
and the command option module.
A synchronization error occurred between the SERVOPACK and
the command option module.
An error occurred in the data of communications between the SER-
VOPACK and the command option module.
An error occurred in establishing communications (settings)
between the SERVOPACK and the command option module.
A error occurred in synchronization between the SERVOPACK and
the command option module.
(cont'd)
Servomotor
Alarm
Stopping
Reset
Method
Gr.1
N/A
Gr.1
N/A
Gr.1
N/A
Gr.1
N/A
Gr.1
N/A
Gr.1
N/A
Gr.1
N/A
Gr.1
N/A
Gr.1
Available
Gr.1
N/A
Gr.1
N/A
Gr.1
N/A
Gr.1
N/A
Gr.1
N/A
Gr.1
N/A
Gr.1
N/A
Gr.1
N/A
Gr.1
N/A
Gr.1
Available
Gr.1
Available
Gr.2
Available
Gr.2
Available
Gr.2
Available
Gr.1
Available
Gr.1
Available
Gr.2
Available
Gr.2
Available
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Table of Contents
Troubleshooting
