Types Of Faults, Minor Faults, Alarms, And Errors - YASKAWA HV600 Installation & Startup

5.2 Types of Faults, Minor Faults, Alarms, and Errors

5.2

Types of Faults, Minor Faults, Alarms, and Errors

If the bypass or motor do not operate correctly, check the keypad for a code or message.
If problems occur that are not identified in this manual, contact the nearest Yaskawa representative with this
information:
• Bypass model
• Bypass software version
• Date of purchase
• Description of the problem (such as failure conditions)
Table 5.1 contains descriptions of the different types of faults, minor faults, alarms, and errors that can occur during
operation.
Contact Yaskawa if there is damage to the bypass. Contact information is on the back cover of the manual.
Type
Faults
Minor Faults/Alarms
Operation Errors
Auto-Tuning Errors
Copy Function Errors
92
Table 5.1 Types of Faults, Minor Faults, Alarms, and Errors
Drive faults thrown by the HV600 drive will stop the bypass from running the drive, but will not stop it from running in Bypass
Mode.
If Z1-05 = 1 [Auto Transfer To Bypass = Enabled], a drive fault will cause the unit to start running in Bypass Mode.
System faults (FB0x) will stop the drive and also stop the bypass from running in Bypass Mode.
When the bypass detects a fault, it will cause these conditions:
• The keypad shows the fault code and
• The keypad shows the fault code and
= 0 or 1 [LED Light Function Selection = Enable Status Ring & Keypad LED or LED Status Ring Disable].
• The bypass shuts off output, and the motor coasts to a stop. Some faults let the user select a motor stopping method.
• Fault relay output MA-MC will turn ON, and MB-MC will turn OFF.
The bypass will not operate until you clear the fault with a Fault Reset and the bypass goes back to usual status.
When the bypass detects a minor fault or an alarm, it will cause these conditions:
• The keypad shows the alarm code and
• The bypass will continue to operate the motor. Some alarms let the user select a motor stopping method.
• If the bypass detects a minor fault, the terminal set to H2-01 to H2-03 = 10 [MFDO Function Select = Alarm] will switch
ON. If you do not set parameters H2-01 to H2-03, the bypass will not trigger MFDO terminals when it detects a minor fault.
• The bypass will not output a minor fault signal when it detects an alarm.
It is not necessary to do Fault Reset.
An error occurs when parameter settings do not agree or a parameter combination is incorrect. The bypass will not operate until
you set the parameters correctly.
When the bypass detects an operation error, these conditions will result:
• The keypad shows the error code.
• Multi-function outputs do not output an alarm signal.
Find the parameters that caused the error and correct the settings.
An error occurs during Auto-Tuning.
When the bypass detects a tuning error, it will cause these conditions:
• The keypad shows the error code.
• Multi-function outputs do not output an alarm signal.
• The motor coasts to stop.
Remove the cause of the error and do Auto-Tuning again.
An error occurs when you use the keypad for a backup, restore, or verify operation.
When the bypass detects a copy function error, it will cause these conditions:
• The keypad shows the error code.
• Multi-function outputs do not output an alarm signal.
Push a key on the keypad to clear the error. Remove the cause of the error and try the backup, restore, or verify operation again.
YASKAWA TOEPYAIH6B01A HV600 AC Drive Narrow Bypass Installation & Startup
Response
and ALM/ERR of the LED Status Ring illuminate continuously.
and ALM/ERR on the LED Status Ring illuminate continuously when o2-24
and ALM/ERR on the LED Status Ring flash when o2-24 = 0 or 1.