280 YASKAWA ELECTRIC SIEP C710616 38F YASKAWA AC Drive - L1000A Technical Manual
6.2 Drive Alarms, Faults, and Errors
6.2 Drive Alarms, Faults, and Errors
◆ Types of Alarms, Faults, and Errors
Check the digital operator for information about possible faults if the drive or motor fails to operate. Refer to Using the
Digital Operator on page 93.
If problems occur that are not covered in this manual, contact the nearest Yaskawa representative with the following
information:
• Drive model
• Software version
• Date of purchase
• Description of the problem
Table 6.1 contains descriptions of the various types of alarms, faults, and errors that may occur while operating the drive.
Contact Yaskawa in the event of drive failure.
Table 6.1 Types of Alarms, Faults, and Errors
Type Drive Response
Faults
When the drive detects a fault:
• The digital operator displays text indicating the specific fault and the ALM indicator LED remains lit until the fault is reset.
• The fault interrupts drive output and the motor coasts to a stop.
• Some faults allow the user to select the stopping method when the fault occurs.
• Fault output terminals MA-MC will close, and MB-MC will open.
The drive will remain inoperable until the fault is cleared. Refer to Fault Reset Methods on page 315.
Minor Faults and Alarms
When the drive detects an alarm or a minor fault:
• The digital operator displays text indicating the specific alarm or minor fault, and the ALM indicator LED flashes.
• The drive continues running the motor, although some alarms allow the user to select a stopping method when the alarm occurs.
• A multi-function contact output set to be tripped when a minor fault (H2- = 10) closes. If the output is set to be tripped.
• The digital operator displays text indicating a specific alarm and ALM indicator LED flashes.
To reset the a minor fault or alarm, remove whatever is causing the problem.
Operation Errors
An operation error occurs when parameter settings conflict or do not match hardware settings (such as with an option card). When the drive detects an
operation error:
• The digital operator displays text indicating the specific error.
• Multi-function contact outputs do not operate.
The drive will not operate the motor until the error has been reset. Correct the settings that caused the operation error to clear the error.
Tuni ng Er ror s
Tuning errors occur while performing Auto-Tuning. When the drive detects a tuning error:
• The digital operator displays text indicating the specific error.
• Multi-function contact outputs do not operate.
• Motor coasts to stop.
Remove the cause of the error and repeat the Auto-Tuning process.
Copy Function Errors
Copy Function Errors occur when using the digital operator or the USB Copy Unit to copy, read, or verify parameter settings.
• The digital operator displays text indicating the specific error.
• Multi-function contact outputs do not operate.
Pressing any key on the digital operator will clear the fault. Investigate the cause of the problem (such as model incompatibility) and try again.
SIEP_C710616_38F_5_0.book 280 ページ ２０１５年１１月９日 月曜日 午後３時３６分
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