Yaskawa Sigma-5 User Manual: Design and Maintenance - Rotary Motors - Manual (Page 267)

9 Troubleshooting
9.1.1 List of Alarms
9-2
9.1 Troubleshooting
The following sections describe troubleshooting in response to alarm displays.
The alarm name, alarm meaning, alarm stopping method, and alarm reset capability are listed in order of the
alarm numbers in 9.1.1 List of Alarms.
The causes of alarms and troubleshooting methods are provided in 9.1.2 Troubleshooting of Alarms.
9.1.1 List of Alarms
If an alarm occurs, the servomotor can be stopped by doing either of the following operations.
Alarm Stopping Method
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.
Alarm Reset Capability
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.
Alarm
Display
Alarm Name Meaning
Servomotor
Stop
Method
Alarm
Reset
A.020 Parameter Checksum Error The data of the parameter in the SERVOPACK is incorrect. Gr.1 N/A
A.021 Parameter Format Error
The data format of the parameter in the SERVOPACK is
incorrect.
Gr.1 N/A
A.022 System Checksum Error The data of the parameter in the SERVOPACK 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 The parameter setting is outside the allowable setting range. Gr.1 N/A
A.041
Encoder Output Pulse Setting
Error
The encoder output pulse setting (pulse unit) (Pn212) is out-
side the allowable setting range or does not satisfy the set-
ting conditions.
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 fully-closed option module and Pn00B.3,
Pn002.3 do not match.
Gr.1 N/A
A.04A Parameter Setting Error 2
There is an error in settings of parameters reserved by the
system.
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 unsupported device unit was connected. 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 function was used with the utility func-
tion.
Gr.1 Available
A.100
Overcurrent or Heat Sink
Overheated
An overcurrent flowed through the IGBT.
Heat sink of the SERVOPACK was overheated.
Gr.1 N/A
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