Yaskawa Z1000 AC Drive HVAC - Manual (Page 225)

HOA Keypad Display Error
iFEr Communication Error
Cause Possible Solutions
A communication error occurred between the drive
and the operator or the USB copy unit.
Check the cable connection.
A non-compatible cable is being used to connect the
USB Copy Unit and the drive.
Use the cable originally packaged with the USB Copy Unit.
HOA Keypad Display Error
ndAT Model, Voltage Class, Capacity Mismatch
Cause Possible Solutions
The drive from which the parameters were copied
and the drive to which the parameters will be written
have different electrical specifications, capacities,
are set to different control modes, or are different
models.
Make sure model numbers and specifications are the same for both drives.
The device being used to write the parameters is
blank and does not have any parameters saved on it.
Make sure all connections are correct, and copy the parameter settings onto the USB Copy Unit or
the operator.
HOA Keypad Display Error
rdEr Error Reading Data
Cause Possible Solutions
Failed while attempting to read parameter settings
from the drive.
Press and hold the READ key on the USB Copy Unit for at least one second to have the unit read
parameters from the drive.
HOA Keypad Display Task
rEAd Reading Parameter Settings (flashing)
Cause Possible Solutions
Displayed while the parameter settings are being
read onto the USB Copy Unit.
This is not an error.
HOA Keypad Display Error
vAEr Voltage Class, Capacity Mismatch
Cause Possible Solutions
The drive from which the parameters were copied
and the drive on which the Verify mode is being
performed have different electrical specifications or
are a different capacity.
Make sure electrical specifications and capacities are the same for both drives.
HOA Keypad Display Error
vFyE Parameter settings in the drive and those saved to the copy function are not the same
Cause Possible Solutions
Indicates that the parameter settings that have been
Read and loaded onto the Copy Unit or HOA Keypad
are different.
To synchronize parameters, either write the parameters saved on the USB Copy Unit or HOA keypad
onto the drive, or Read the parameter settings on the drive onto the USB Copy Unit.
HOA Keypad Display Task
vrFy Comparing Parameter Settings (flashing)
Cause Possible Solutions
The Verify mode has confirmed that parameters
settings on the drive and parameters read to the copy
device are identical.
This is not an error.
5.8 Copy Function Related Displays
YASKAWA ELECTRIC TOEP YAIZ1U 03A YASKAWA AC Drive – Z1000 User Manual 225
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Troubleshooting