The output current of the VFD or the motor is above 
P11.09  and  the  lasting  time  is  beyond  P11.10, 
overload pre-alarm will be output.   
 
Setting range of P11.08:   
Enable and define the overload pre-alarm of the VFD 
and the motor.   
Setting range: 0x000–0x131 
LED ones:   
0:  Overload/underload  pre-alarm  for  the  motor, 
relative to the rated current of the motor   
1:  Overload/underload  pre-alarm  for  the  VFD, 
relative to the rated current of the VFD 
LED tens:   
0:  The  VFD  continues  to  work  after  an 
overload/underload pre-alarm is generated. 
1:  The  VFD  continues  to  work  after  an  underload