6.1 Alarm Displays
6.1.1 List of Alarms
6-4
A.7A2
Internal Temperature Error
2 (Power Board Tempera-
ture Error)
The surrounding temperature of the power PCB
is abnormal.
Gr.2 Yes
A.7A3
Internal Temperature
Sensor Error
An error occurred in the temperature sensor cir-
cuit.
Gr.2 No
A.7Ab SERVOPACK Built-in Fan
Stopped
The fan inside the SERVOPACK stopped. Gr.1 Yes
A.810 Encoder Backup Alarm
The power supplies to the encoder all failed and
the position data was lost.
Gr.1 No
A.820 Encoder Checksum Alarm
There is an error in the checksum results for
encoder memory.
Gr.1 No
A.830 Encoder Battery Alarm
The battery voltage was lower than the specified
level after the control power supply was turned
ON.
Gr.1 Yes
A.840 Encoder Data Alarm There is an internal data error in the encoder. Gr.1 No
A.850 Encoder Overspeed
The encoder was operating at high speed when
the power was turned ON.
Gr.1 No
A.860 Encoder Overheated The internal temperature of encoder is too high. Gr.1 No
A.861 Motor Overheated The internal temperature of motor is too high. Gr.1 No
A.862 Overheat Alarm
The input voltage (temperature) for the overheat
protection input (TH) signal exceeded the setting
of Pn61B (Overheat Alarm Level).
Gr.1 Yes
A.890 Encoder Scale Error A failure occurred in the linear encoder. Gr.1 No
A.891 Encoder Module Error An error occurred in the linear encoder. Gr.1 No
A.b33 Current Detection Error 3 An error occurred in the current detection circuit. Gr.1 No
A.b6A
MECHATROLINK Commu-
nications ASIC Error 1
ASIC error 1 occurred in MECHATROLINK com-
munications.
Gr.1 No
A.b6b
MECHATROLINK Commu-
nications ASIC Error 2
ASIC error 2 occurred in MECHATROLINK com-
munications.
Gr.2 No
A.bF0
System Alarm 0
Internal program error 0 occurred in the SERVO-
PACK.
Gr.1 No
A.bF1
System Alarm 1
Internal program error 1 occurred in the SERVO-
PACK.
Gr.1 No
A.bF2
System Alarm 2
Internal program error 2 occurred in the SERVO-
PACK.
Gr.1 No
A.bF3
System Alarm 3
Internal program error 3 occurred in the SERVO-
PACK.
Gr.1 No
A.bF4
System Alarm 4
Internal program error 4 occurred in the SERVO-
PACK.
Gr.1 No
A.bF5
System Alarm 5
Internal program error 5 occurred in the SERVO-
PACK.
Gr.1 No
A.bF6
System Alarm 6
Internal program error 6 occurred in the SERVO-
PACK.
Gr.1 No
A.bF7
System Alarm 7
Internal program error 7 occurred in the SERVO-
PACK.
Gr.1 No
A.bF8
System Alarm 8
Internal program error 8 occurred in the SERVO-
PACK.
Gr.1 No
A.C10 Servomotor Out of Control The Servomotor ran out of control. Gr.1 Yes
A.C20 Phase Detection Error The detection of the phase is not correct. Gr.1 No
A.C21 Polarity Sensor Error An error occurred in the polarity sensor. Gr.1 No
Continued on next page.
Continued from previous page.
Alarm
Number
Alarm Name Alarm Meaning
Servo-
motor
Stop-
ping
Method
Alarm
Reset
Possi-
ble?
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