8.1 Troubleshooting
8-3
8
T
roubleshooting
A.330
Main Circuit Power
Supply Wiring Error
• Setting of AC input/DC input is incorrect.
• Power supply wiring is incorrect.
Gr.1
Available
A.400
Overvoltage
Main circuit DC voltage is excessively high.
Gr.1
Available
A.410
Undervoltage
Main circuit DC voltage is excessively low.
Gr.2
Available
A.450
Main-Circuit
Capacitor Overvoltage
The capacitor of the main circuit has deteriorated or is faulty.
Gr.1
N/A
A.510
Overspeed
The linear servomotor speed is over the maximum allowable
speed.
Gr.1
Available
A.511
Overspeed of Encoder Output
Pulse Rate
The set value of the encoder output resolution (Pn281)
exceeds the speed limit.
Gr.1
Available
A.520
Vibration Alarm
Vibration at the motor speed was detected.
Gr.1
Available
A.521
Autotuning Alarm
Vibration was detected while performing tuning-less func-
tion.
Gr.1
Available
A.550
Maximum Speed Setting Error
The Pn385 setting is greater than the maximum speed.
Gr.1
Available
A.710
Overload: High Load
The linear servomotor was operating for several seconds to
several tens of seconds under a force largely exceeding rat-
ings.
Gr.2
Available
A.720
Overload: Low Load
The linear servomotor was operating continuously under a
force largely exceeding ratings.
Gr.1
Available
A.730
A.731
Dynamic Brake Overload
When the dynamic brake was applied, moving energy
exceeded the capacity of dynamic brake resistor.
Gr.1
Available
A.740
Overload of Surge
Current Limit Resistor
The main circuit power was frequently turned ON and OFF.
Gr.1
Available
A.7A0
Heat Sink Overheated
The temperature of the SERVOPACK heat sink exceeded
100
°
C.
Gr.2
Available
A.7AB
Built-in Fan in SERVOPACK
Stopped
The fan inside the SERVOPACK stopped.
Gr.1
Available
A.820
Encoder Checksum Error
The checksum results of linear scale memory is incorrect.
Gr.1
N/A
A.840
Encoder Data Error
Data in the linear scale is incorrect.
Gr.1
N/A
A.850
Encoder Overspeed
The linear scale was operating at high speed when the power
was turned ON.
Gr.1
N/A
A.860
Encoder Overheated
The internal temperature of linear scale is too high.
Gr.1
N/A
A.890
Encoder Scale Error
A linear scale fault occurred.
Gr.1
N/A
A.891
Encoder Module Error
Linear scale is faulty.
Gr.1
N/A
A.b31
Current Detection Error1
(Phase-U)
The current detection circuit for phase-U is faulty.
Gr.1
N/A
A.b32
Current Detection Error 2
(Phase-V)
The current detection circuit for phase-V is faulty.
Gr.1
N/A
A.b33
Current Detection Error 3
(Current detector)
The detection circuit for the current is faulty.
Gr.1
N/A
A.bF0
System Alarm 0
“Internal program error 0" occurred in the SERVOPACK.
Gr.1
N/A
A.bF1
System Alarm 1
“Internal program error 1" occurred in the SERVOPACK.
Gr.1
N/A
A.bF2
System Alarm 2
“Internal program error 2" occurred in the SERVOPACK.
Gr.1
N/A
A.bF3
System Alarm 3
“Internal program error 3" occurred in the SERVOPACK.
Gr.1
N/A
A.bF4
System Alarm 4
“Internal program error 4" occurred in the SERVOPACK.
Gr.1
N/A
A.C10
Servo Overrun Detected
The linear servomotor ran out of control.
Gr.1
Available
A.C20
Phase Detection Error
The detection of the phase is incorrect.
Gr.1
N/A
A.C21
Hall Sensor Error
The hall sensor is faulty.
Gr.1
N/A
A.C22
Phase Information
Disagreement
The phase information does not match.
Gr.1
N/A
A.C50
Polarity Detection Error
The polarity detection failed.
Gr.1
N/A
Alarm
Display
Alarm Name
Meaning
Servomotor
Stop
Method
Alarm
Reset
