YASKAWA S-V Series User Manual page 174

9 Troubleshooting
9.1.1 List of Alarms for Command Option Attachable Type SERVOPACKs
Alarm
Alarm Name
Display
A.510 Overspeed
Overspeed of Encoder
A.511
Output Pulse Rate
A.520 Vibration Alarm
A.521 Autotuning Alarm
Maximum Speed
A.550
Setting Error
Overload:
A.710
High Load
Overload:
A.720
Low Load
A.730 Dynamic Brake
Overload
A.731
Overload of Surge
A.740
Current Limit Resistor
A.7A0 Heat Sink Overheated
Built-in Fan in
A.7AB
SERVOPACK Stopped
9-4
Meaning
The servomotor speed is over the maximum
allowable speed.
The set value of the encoder output
Rotational
pulse (Pn212) exceeds the speed
motors
limit.
The set value of the encoder output
Linear
resolution (Pn281) exceeds the
motors
speed limit.
Rotational Vibration at the motor speed was
motors detected.
Linear Vibration at the motor speed was
motors detected.
Vibration was detected while performing tun-
ing-less function.
The Pn385 setting is greater than the maximum
speed.
The motor was operating for sev-
Rotational eral seconds to several tens of sec-
motors onds under a torque largely
exceeding ratings.
The linear servomotor was operat-
Linear ing for several seconds to several
motors tens of seconds under a force
largely exceeding ratings.
The motor was operating continu-
Rotational
ously under a torque largely
motors
exceeding ratings.
The linear servomotor was operat-
Linear
ing continuously under a force
motors
largely exceeding ratings.
When the dynamic brake was
Rotational applied, rotational energy exceeded
motors the capacity of dynamic brake
resistor.
When the dynamic brake was
Linear applied, moving energy exceeded
motors the capacity of dynamic brake
resistor.
The main circuit power was frequently turned
ON and OFF.
The temperature of the SERVOPACK heat sink
exceeded 100°C.
The fan inside the SERVOPACK stopped.
Servomotor Alarm Code Output
Alarm
Stop
Reset
/ALO1 /ALO2 /ALO3
Method
Avail-
Gr.1
able
Avail-
Gr.1
able
ON
(close)
Avail-
Gr.1
able
Avail-
Gr.1
able
Avail-
Gr.1
able
Avail-
Gr.2
able
Avail-
Gr.1
able
ON
(close)
Avail-
Gr.1
able
Avail-
Gr.1
able
Avail-
Gr.2
able
Avail-
Gr.1
able
(cont'd)
OFF ON
(open) (close)
ON ON
(close) (close)