10 Troubleshooting
10.1.1 List of Alarms
10-2
10.1 Troubleshooting
The following sections describe troubleshooting in response to alarm displays.
The alarm name, alarm meaning, alarm stopping method, alarm reset capability and alarm code output are
listed in order of the alarm numbers in 10.1.1 List of Alarms.
The causes of alarms and troubleshooting methods are provided in 10.1.2 Troubleshooting of Alarms.
10.1.1 List of Alarms
If an alarm occurs, the servomotor can be stopped by doing either of the following operations.
Alarm
Display
Alarm Name Meaning
Servo-
motor
Stop
Method
Alarm
Reset
Alarm Code Output
ALO1 ALO2 ALO3
A.020
Parameter Checksum
Error 1
The data of the parameter in the SERVO-
PACK is incorrect.
Gr.1 N/A
HHH
A.021 Parameter Format Error 1
The data of the parameter in the SERVO-
PACK is incorrect.
Gr.1 N/A
A.022 System Checksum Error 1
The data of the parameter in the SERVO-
PACK is incorrect.
Gr.1 N/A
A.023
Parameter Password Error
1
The data of the parameter in the SERVO-
PACK is incorrect.
Gr.1 N/A
A.030 Main Circuit Detector Error Detection data for power circuit is incorrect. Gr.1 Available
A.040 Parameter Setting Error 1
The parameter setting is outside the allow-
able setting range.
Gr.1 N/A
A.041
Encoder Output Pulse
Setting Error
The encoder output pulse setting (pulse
unit) (Pn212) is outside the allowable set-
ting range or not satisfies the setting condi-
tions.
Gr.1 N/A
A.042
Parameter Combination
Error
Combination of some parameters exceeds
the setting range.
Gr.1 N/A
A.044
Fully-closed Loop Control
Parameter Setting Error
The settings of the option module and
Pn00B.3, Pn002.3 do not match.
Gr.1 N/A
A.050 Combination Error
The SERVOPACK and the servomotor
capacities do not match each other.
Gr.1 Available
A.051 Unsupported Device Alarm
The device unit unsupported was con-
nected.
Gr.1 N/A
A.0b0
Cancelled Servo ON
Command Alarm
The Host controller reference was sent to
turn the Servo ON after the Servo ON func-
tion was used with the utility function.
Gr.1 Available
A.100
Overcurrent or Heat Sink
Overheated
An overcurrent flowed through the IGBT.
Heat sink of the SERVOPACK was over-
heated.
Gr.1 N/A L H H
Gr.1: The servomotor is stopped according to the settings in Pn001.0 if an alarm occurs. Pn001.0 is factory-set
to stop the servomotor by applying the DB.
Gr.2: The servomotor is stopped according to the setting in Pn00B.1 if an alarm occurs. Pn00B.1 is factory-set
to stop the servomotor by setting the speed reference to
"0." The servomotor under torque control will
always use the Gr.1 method to stop. By setting Pn00B.1 to 1, the servomotor stops using the same
method as Gr.1. When coordinating a number of servomotors, use this alarm stop method to prevent
machine damage that may result due to differences in the stop method.
Available: Removing the cause of alarm and
then executing the alarm reset can clear the
alarm.
N/A: Executing the alarm reset cannot clear the
alarm.
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