5.4 Drive Alarms, Faults, and Errors
196 YASKAWA TM.V1000.01 V1000 Drive Installation & Start-Up Manual (Preliminary 01-19-07)
◆ Alarm and Error Displays
■ Faults
When the drive detects a fault, the ALM indicator LEDs remain lit without
flashing. If the LEDs flash, the drive has detected a minor fault or alarm. Refer to
Minor Faults and Alarms on page 198 for more information. An overvoltage
situation trips both faults and minor faults, therefore it is important to note whether
the LEDs remain lit or if the LEDs flash.
Alarms
• When the drive detects an alarm:
• The digital operator displays text that indicates the specific alarm and the ALM indicator LED
flashes.
• The motor does not stop.
• If a multi-function contact output is set for a minor fault (H2- = 10), that output will not be
tripped.
• To reset an alarm, remove the cause and the drive will automatically reset the alarm.
Operation Errors
• When parameter settings conflict with one another or do not match hardware settings (such as
with an option card), it results in an operation error.
• When the drive detects an operation error:
• The digital operator displays text that indicates the specific error.
• Multi-function contact outputs do not operate.
• When the drive detects an operation error, it will not operate the motor until the error has been
reset. Correct the settings that caused the operation error to reset.
Tuning Errors
• 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.
Type Drive Responses to Alarms, Faults, and Errors
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