YASKAWA CIMR-RA Series, Instruction Manual

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5.2 Alarms, Faults, and Errors
YASKAWA ELECTRIC TOEP C710656 10B YASKAWA Power Regenerative Unit - R1000 Instruction Manual 79
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5.2 Alarms, Faults, and Errors
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Types of Alarms, Faults, and Errors
Check the digital operator for information about possible faults if the regenerative unit fails to operate.
If problems occur that are not covered in this manual, contact the nearest Yaskawa representative with the following
information:
• Regenerative unit model
• Software version
• Date of purchase
• Description of the problem
Table 5.1 contains descriptions of the various types of alarms, faults, and errors that may occur while operating the
regenerative unit.
If the regenerative unit fails, contact your Yaskawa representative or the nearest Yaskawa sales office.
Table 5.1 Types of Alarms, Faults, and Errors
Type Response
Faults
When the regenerative unit 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 regenerative unit output.
• 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 regenerative unit will remain inoperable until the fault is cleared. Refer to
Fault Reset Methods on
page 103 .
Minor Faults and Alarms
When the regenerative unit 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.
• A multi-function contact output set to be tripped by a minor fault (H2-  = 10) closes. If the output is set to
be tripped by an alarm, the contact will not close.
Remove the cause of the problem to reset a minor fault or alarm.
Operation Errors
An operation error occurs when parameter settings conflict or do not match hardware settings (such as with an
option card). When the regenerative unit detects an operation error:
• The digital operator displays text indicating the specific error.
• Multi-function contact outputs do not operate.
The regenerative unit will not operate until the error has been reset. Correct the settings that caused the
operation error to clear the error.
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.
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