Yaskawa Sigma-5 User Manual: Design and Maintenance - Rotary Motors - MECHATROLINK-II Communications Reference User Manual
Page 300
9.1 Alarm Displays
9-3
9
Trou
blesh
ooting
A.300
Regeneration Error
Regenerative circuit or regenerative resistor is faulty.
Gr.1
Available
A.320
Regenerative Overload
Regenerative energy exceeds regenerative resistor
capacity.
Gr.2
Available
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 servomotor speed is above the maximum rota-
tional speed.
Gr.1
Available
A.511
Overspeed of Encoder
Output Pulse Rate
The pulse output speed upper limit of the set encoder
output pulse (Pn212) is exceeded.
Gr.1
Available
A.520
Vibration Alarm
Incorrect vibration at the motor speed was detected.
Gr.1
Available
A.521
Autotuning Alarm
Vibration was detected while performing tuning-less
function.
Gr.1
Available
A.710
Overload: High Load
The servomotor was operating for several seconds to
several tens of seconds under a torque largely exceed-
ing ratings.
Gr.2
Available
A.720
Overload: Low Load
The servomotor was operating continuously under a
torque exceeding ratings.
Gr.1
Available
A.730
A.731
Dynamic Brake Overload
When the dynamic brake was applied, rotational
energy exceeded the capacity of dynamic brake resis-
tor.
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 heat sink of the SERVOPACK exceeded 100
°C.
Gr.2
Available
A.7AB
Built-in Fan in
SERVOPACK Stopped
The fan inside the SERVOPACK stopped.
Gr.1
Available
A.810
Encoder Backup Error
The power supplies to the encoder all failed and posi-
tion data was lost.
Gr.1
N/A
A.820
Encoder Checksum Error
The checksum results of encoder memory is incorrect.
Gr.1
N/A
A.830
Absolute Encoder Battery
Error
The battery voltage was lower than the specified value
after the control power supply was turned ON.
Gr.1
Available
A.840
Encoder Data Error
Data in the encoder is incorrect.
Gr.1
N/A
A.850
Encoder Overspeed
The encoder was rotating at high speed when the
power was turned ON.
Gr.1
N/A
A.860
Encoder Overheated
The internal temperature of encoder is too high.
Gr.1
N/A
A.8A0
External Encoder Error
External encoder is faulty.
Gr.1
Available
A.8A1
External Encoder Error of
Module
Serial converter unit is faulty.
Gr.1
Available
A.8A2
External Encoder Error of
Sensor
External encoder is faulty.
Gr.1
Available
A.8A3
External Encoder Error of
Position
The position data of external encoder is faulty.
Gr.1
Available
A.8A5
External Encoder
Overspeed
The overspeed from the external encoder occurred.
Gr.1
Available
A.8A6
External Encoder
Overheated
The overheat from the external encoder occurred.
Gr.1
Available
(cont’d)
Alarm
Number
Alarm Name
Meaning
Servo-
motor
Stop-
ping
Method
Alarm
Reset