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12.2 Alarm Displays
12.2.1 List of Alarms
Alarm
Number
A.850
A.860
A.861
A.890
A.891
A.8A0
A.8A1
A.8A2
A.8A3
A.8A5
A.8A6
A.b10
A.b11
A.b20
A.b33
A.bF0
A.bF1
A.bF2
A.bF3
A.bF4
A.C10
A.C20
12-8
Alarm Name
Encoder Overspeed
Encoder Overheated
Motor Overheated
Encoder Scale Error
Encoder Module Error
External Encoder Error
External Encoder Module
Error
External Incremental
Encoder Sensor Error
External Absolute Encoder
Position Error
External Encoder Over-
speed
External Encoder Over-
heated
Speed Reference A/D
Error
Speed Reference A/D
Data Error
Torque Reference A/D
Error
Current Detection Error 3
System Alarm 0
System Alarm 1
System Alarm 2
System Alarm 3
System Alarm 4
Servomotor Out of Control
Phase Detection Error
Alarm Meaning
The encoder was operating
at high speed when the
power was turned ON.
The internal temperature of
the rotary encoder or linear
encoder is too high.
The internal temperature of
motor is too high.
A failure occurred in the lin-
ear encoder.
An error occurred in the lin-
ear encoder.
An error occurred in the
external encoder.
An error occurred in the
Serial Converter Unit.
An error occurred in the
external encoder.
An error occurred in the posi-
tion data of the external
encoder.
An overspeed error occurred
in the external encoder.
An overheating error
occurred in the external
encoder.
An error occurred in the A/D
converter for the speed refer-
ence input.
An error occurred in the A/D
conversion data for the
speed reference.
An error occurred in the A/D
converter for the torque ref-
erence input.
An error occurred in the cur-
rent detection circuit.
Internal program error 0
occurred in the SERVO-
PACK.
Internal program error 1
occurred in the SERVO-
PACK.
Internal program error 2
occurred in the SERVO-
PACK.
Internal program error 3
occurred in the SERVO-
PACK.
Internal program error 4
occurred in the SERVO-
PACK.
The Servomotor ran out of
control.
The detection of the phase is
not correct.
Continued from previous page.
Servo-
Alarm Code
Alarm
motor
Output
Reset
Stop-
Possi-
ping
ALO1 ALO2 ALO3
ble?
Method
Gr.1
No
H
Gr.1
No
H
Gr.1
No
H
Gr.1
No
H
Gr.1
No
H
Gr.1
Yes
H
Gr.1
Yes
H
Gr.1
Yes
H
Gr.1
Yes
H
Gr.1
Yes
H
Gr.1
Yes
H
Gr.2
Yes
H
Gr.2
Yes
H
Gr.2
Yes
H
Gr.1
No
H
Gr.1
No
H
Gr.1
No
H
Gr.1
No
H
Gr.1
No
H
Gr.1
No
H
Gr.1
Yes
L
Gr.1
No
L
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
L
H
L
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Table of Contents
Troubleshooting
