Yaskawa MP940 - Manual (Page 347)

Troubleshooting
9.1.1 Troubleshooting Methods
9-2
9.1 Overview of Troubleshooting
This section shows the basic troubleshooting flow and provides a list of errors.
9.1.1 Troubleshooting Methods
There are three checks available for checking the system when an error occurs. They are
checks by symptoms, error codes, and monitor functions of peripheral devices. Checking
procedures are categorized by status conditions to help determine the cause quickly.
„ Checking by Symptoms
Factors like indicators on the front of the Module and the control status of all devices are
visually checked to determine a cause and implement corrections.
„ Checking by Error Codes
Error codes generated when errors occur are monitored to determine a cause and implement
corrections. Errors are classified into two groups.
„ Checking by Monitor Functions of Peripheral Devices
The monitor functions of peripheral devices are used to determine the control status and to
find the cause of errors. The status of the following functions can be checked.
• Program monitoring
• Position monitoring
• Error monitoring
• Traces
Classification Error Code Type
Sequence Control Error Code Starting from system register (S register) SW00040
Motion Control Error Code • Motion program error code
• Servo error by axis