9 Troubleshooting
9.1.1 List of Alarms
9-4
A.b6A
MECHATROLINK
Communications
ASIC Error 1
ASIC error occurred in the MECHATROLINK
communications.
Gr.1
N/A
A.b6b
MECHATROLINK
Communications
ASIC Error 2
ASIC error occurred in the MECHATROLINK
communications.
Gr.2
N/A
A.bE0
Firmware Error
An internal program error occurred in the SERVO-
PACK.
Gr.1
N/A
A.bF0
System Alarm 0
Internal program error 0 occurred in the SERVO-
PACK.
Gr.1
N/A
A.bF1
System Alarm 1
Internal program error 1 occurred in the SERVO-
PACK.
Gr.1
N/A
A.bF2
System Alarm 2
Internal program error 2 occurred in the SERVO-
PACK.
Gr.1
N/A
A.bF3
System Alarm 3
Internal program error 3 occurred in the SERVO-
PACK.
Gr.1
N/A
A.bF4
System Alarm 4
Internal program error 4 occurred in the SERVO-
PACK.
Gr.1
N/A
A.C10
Servo Overrun Detected
The servomotor ran out of control.
Gr.1
Available
A.C80
Absolute Encoder Clear Er-
ror and Multiturn Limit Set-
ting Error
The absolute encoder multiturn data was cleared or
the setting is not correct.
Gr.1
N/A
A.C90
Encoder Communications
Error
Communications between the SERVOPACK and the
encoder is not possible.
Gr.1
N/A
A.C91
Encoder Communications
Position Data Error
An encoder position data calculation error occurred.
Gr.1
N/A
A.C92
Encoder Communications
Timer Error
An error occurs in the communications timer
between the encoder and the SERVOPACK.
Gr.1
N/A
A.CA0
Encoder Parameter Error
Encoder parameters are faulty.
Gr.1
N/A
A.Cb0
Encoder Echoback Error
Contents of communications with encoder are incor-
rect.
Gr.1
N/A
A.CC0
Multiturn Limit
Disagreement
Different multiturn limits have been set in the
encoder and the SERVOPACK.
Gr.1
N/A
A.CF1
Feedback Option Module
Communications Error (Re-
ception error)
Reception from the Feedback Option Module is
faulty.
Gr.1
N/A
A.CF2
Feedback Option Module
Communications Error (Tim-
er stop)
Timer for communications with the Feedback
Option Module is faulty.
Gr.1
N/A
A.d00
Position Error Overflow
Position error exceeded the value of excessive posi-
tion error alarm level (Pn520) when the servomotor
power is ON.
Gr.1
Available
A.d01
Position Error Overflow
Alarm at Servo 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 servomotor power is OFF.
Gr.1
Available
A.d02
Position Error Overflow
Alarm by Speed Limit at Ser-
vo ON
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).
Gr.2
Available
A.d10
Motor-load Position Error
Overflow
During fully-closed loop control, the position error
between motor and load is excessive.
Gr.2
Available
(cont’d)
Alarm
Number
Alarm Name
Meaning
Servo-
motor
Stopping
Method
Alarm
Reset