18 Troubleshooting
YASKAWA TOEPC7106170VA GA800 600 V Drive Installation & Primary Operation 83
Code Name Causes Possible Solutions
vAEr Voltage Class, Capacity Mismatch
The power supply specifications or drive capacity
parameter settings are different between the keypad
and the drive.
1. Make sure that drive model and the value set in o2-04 [Drive
Model (KVA) Selection] align.
2. Restore the parameters.
vFyE Parameters do not Match
The parameters that are backed up in the keypad and
the parameters in the drive do not align.
1. Restore or backup the parameter again.
2. Verify the parameters.