YASKAWA SGD7S Product Manual page 476

Alarm
Alarm Name
Number
Encoder Output Pulse
A.511
Overspeed
A.520 Vibration Alarm
A.521 Autotuning Alarm
Maximum Speed Setting
A.550
Error
A.710 Instantaneous Overload
A.720 Continuous Overload
A.730
Dynamic Brake Overload
A.731
Inrush Current Limiting
A.740
Resistor Overload
Internal Temperature Error
A.7A1 1 (Control Board Tempera-
ture Error)
Internal Temperature Error
A.7A2 2 (Power Board Tempera-
ture Error)
Internal Temperature Sen-
A.7A3
sor Error
SERVOPACK Built-in Fan
A.7Ab
Stopped
A.810 Encoder Backup Alarm
A.820 Encoder Checksum Alarm
A.830 Encoder Battery Alarm
Alarm Meaning
• Rotary Servomotor: The
pulse output speed for the
setting of Pn212 (Number
of Encoder Output Pulses)
was exceeded.
• Linear Servomotor: The
motor speed upper limit for
the setting of Pn281
(Encoder Output Resolu-
tion) was exceeded.
Abnormal oscillation was
detected in the motor speed.
Vibration was detected
during autotuning for the tun-
ing-less function.
The setting of Pn385 (Maxi-
mum Motor Speed) is greater
than the maximum motor
speed.
The Servomotor was operat-
ing for several seconds to
several tens of seconds
under a torque that largely
exceeded the rating.
The Servomotor was operat-
ing continuously under a
torque that exceeded the rat-
ing.
When the dynamic brake was
applied, the rotational or lin-
ear kinetic energy exceeded
the capacity of the dynamic
brake resistor.
The main circuit power sup-
ply was frequently turned ON
and OFF.
The surrounding tempera-
ture of the control PCB is
abnormal.
The surrounding tempera-
ture of the power PCB is
abnormal.
An error occurred in the tem-
perature sensor circuit.
The fan inside the SERVO-
PACK stopped.
The power supplies to the
encoder all failed and the
position data was lost.
There is an error in the
checksum results for
encoder memory.
The battery voltage was
lower than the specified level
after the control power sup-
ply was turned ON.
12.2 Alarm Displays
12.2.1 List of Alarms
Continued from previous page.
Servo- Alarm Code
Alarm
motor Output
Reset
Stop-
Possi-
ping
ALO1 ALO2 ALO3
ble?
Method
Gr.1 Yes L H
Gr.1 Yes L H
Gr.1 Yes L H
Gr.1 Yes L H
Gr.2 Yes L L
Gr.1 Yes L L
Gr.1 Yes L L
Gr.1 Yes L L
Gr.2 Yes L L
Gr.2 Yes L L
Gr.2 No L L
Gr.1 Yes L L
Gr.1 No H H
Gr.1 No H H
Gr.1 Yes H H
Continued on next page.
L
L
L
L
L
L
L
L
L
L
L
L
H
12
H
H
12-7