HKS VFD Drive A2 Series User Manual

A2 VFD (0.75-30kW)
18
Chapter 9 Error Message and Fault Diagnosis
9.1 Fault table
Display
Meaning
Cause
Diagnosis
OU –o
Overvoltage
Overvoltage of
power source
Check voltage of power
source
OU –u
Acceleration
overvoltage
Overvoltage of
power source
Check voltage of power
source
OU –d
Deceleration
overvoltage
Overvoltage of
power source or
large inertia
Overvoltage of power
source, increase
deceleration time, add
brake components
OU –r
Steady state
Overvoltage
Overvoltage of
power source
Check voltage of power
source
LU –o
Stop state
undervoltage
Undervoltage of
power source
Check voltage of power
source
LU–u
Acceleration
undervoltage
Undervoltage of
power source,
small
acceleration time
Check voltage of power
source, increase
acceleration time
LU –d
Deceleration
undervoltage
Undervoltage of
power source
Check voltage of power
source
LU –r
Steady state
undervoltage
Undervoltage of
power source or
large inertia
Check voltage of power
source, decrease load
OC –o
Stop state
overcurrency
Component fail,
interference
Push “RESET”.
Component fail if it
happens again.

HKS VFD Drive A2 Series Specifications

General

Brand	HKS
Model	VFD Drive A2 Series
Category	Controller
Language	English