5.3 Drive Alarms, Faults, and Errorsu Types of Alarms, Faults, and ErrorsCheck the HOA keypad for information about possible faults if the drive or motor fails to operate. Refer to Using the HOAKeypad on page 101.If problems occur that are not covered in this manual, contact the nearest Yaskawa representative with the followinginformation:• Drive model• Software version• Date of purchase• Description of the problemTable 5.4 contains descriptions of the various types of alarms, faults, and errors that may occur while operating the drive.Table 5.4 Types of Alarms, Faults, and ErrorsType Drive ResponseFaultsWhen the drive detects a fault:• The HOA keypad 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 234.Minor Faults andAlarmsWhen the drive detects an alarm or a minor fault:• The HOA keypad 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 alarmoccurs.• A multi-function contact output set to be tripped by a minor fault (H2- oo = 10) closes. If the output is set to be trippedby an alarm, the contact will not close.• The HOA keypad displays text indicating a specific alarm and the ALM indicator LED flashes.Remove the cause of the problem to reset a minor fault or alarm.Operation ErrorsAn 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 HOA keypad 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 clearthe error.Tuning ErrorsTuning errors occur while performing Auto-Tuning.When the drive detects a tuning error:• The HOA keypad 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 ErrorsCopy Function Errors occur when using the HOA keypad or the USB Copy Unit to copy, read, or verify parameter settings.• The HOA keypad displays text indicating the specific error.• Multi-function contact outputs do not operate.Pressing any key on the HOA keypad will clear the fault. Investigate the cause of the problem (such as model incompatibility)and try again.5.3 Drive Alarms, Faults, and Errors196 YASKAWA TOEP YAIZ1U 03B YASKAWA AC Drive – Z1000 User Manual
