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5.2 List of Alarms
Alarm
Number
A.101
A.300
A.320
A.330
A.400
A.410
A.510
A.520
A.521
A.550
A.710
A.720
A.730
A.731
A.740
A.7A1
A.7A2
A.7A3
A.7Ab
A.810
A.820
A.830
A.840
A.850
A.860
A.861
A.890
A.891
A.8A0
5-4
Alarm Name
Motor Overcurrent
Detected
Regeneration Error
Regenerative Overload
Main Circuit Power Supply
Wiring Error
Overvoltage
Undervoltage
Overspeed
Vibration Alarm
Autotuning Alarm
Maximum Speed Setting
Error
Instantaneous Overload
Continuous Overload
Dynamic Brake Overload
Inrush Current Limiting
Resistor Overload
Internal Temperature Error
1 (Control Board Tempera-
ture Error)
Internal Temperature Error
2 (Power Board Tempera-
ture Error)
Internal Temperature Sen-
sor Error
SERVOPACK Built-in Fan
Stopped
Encoder Backup Alarm
Encoder Checksum Alarm
Encoder Battery Alarm
Encoder Data Alarm
Encoder Overspeed
Encoder Overheated
Motor Overheated
Encoder Scale Error
Encoder Module Error
External Encoder Error
Alarm Meaning
The current to the motor exceeded the allowable
current.
There is an error related to regeneration.
A regenerative overload occurred.
• The AC power supply input setting or DC power
supply input setting is not correct.
• The power supply wiring is not correct.
The main circuit DC voltage is too high.
The main circuit DC voltage is too low.
The motor exceeded the maximum speed.
Abnormal oscillation was detected in the motor
speed.
Vibration was detected during autotuning for the
tuning-less function.
The setting of Pn385 (Maximum Motor Speed) is
greater than the maximum motor speed.
The Servomotor was operating for several sec-
onds to several tens of seconds under a torque
that largely exceeded the rating.
The Servomotor was operating continuously
under a torque that exceeded the rating.
When the dynamic brake was applied, the rota-
tional or linear kinetic energy exceeded the
capacity of the dynamic brake resistor.
The main circuit power supply was frequently
turned ON and OFF.
The surrounding temperature of the control PCB
is abnormal.
The surrounding temperature of the power PCB
is abnormal.
An error occurred in the temperature sensor cir-
cuit.
The fan inside the SERVOPACK stopped.
The power supplies to the encoder all failed and
the position data was lost.
There is an error in the checksum results for
encoder memory.
The battery voltage was lower than the specified
level after the control power supply was turned
ON.
There is an internal data error in the encoder.
The encoder was operating at high speed when
the power was turned ON.
The internal temperature of encoder is too high.
The internal temperature of motor is too high.
A failure occurred in the linear encoder.
An error occurred in the linear encoder.
An error occurred in the external encoder.
Continued from previous page.
Servo-
Alarm
motor
Reset
Stop-
Possi-
ping
ble?
Method
Gr.1
No
Gr.1
Yes
Gr.2
Yes
Gr.1
Yes
Gr.1
Yes
Gr.2
Yes
Gr.1
Yes
Gr.1
Yes
Gr.1
Yes
Gr.1
Yes
Gr.2
Yes
Gr.1
Yes
Gr.1
Yes
Gr.1
Yes
Gr.2
Yes
Gr.2
Yes
Gr.2
No
Gr.1
Yes
Gr.1
No
Gr.1
No
Gr.1
Yes
Gr.1
No
Gr.1
No
Gr.1
No
Gr.1
No
Gr.1
No
Gr.1
No
Gr.1
Yes
Continued on next page.
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Table of Contents
Troubleshooting
