HKS VFD Drive A2 Series User Manual

A2 VFD (0.75-30kW)
19
Display
Meaning
Cause
Diagnosis
OC –u
Acceleration
overcurrency
Small acceleration
time or component
fail
Increase acceleration
time
OC –d
Deceleration
overcurrency
Small deceleration
time or component
fail
Increase deceleration
time
OC –r
Steady state
overcurrency
overload or
component fail
Check motor load
OT –o
Overheat
while stop
High environment
temperature or fail
temperature sensor
Check whether air
temperature is over 50,
check CZ55 connection
OT –u
Overheat
while
acceleration
High environment
temperature, small
acceleration time
Check whether air
temperature is over 50,
increase acceleration
time
OT –d
Overheat
while
deceleration
High environment
temperature, small
deceleration time
Check whether air
temperature is over 50,
increase deceleration
time
OT –r
Overheat in
steady state
High environment
temperature,
overload
Check whether air
temperature is over 50,
check overload
9.2 Other unexpected fault
1、VFD is in normal condition but without any output
1. Internal fuse fail
2. Internal drive module fail

HKS VFD Drive A2 Series Specifications

General

Brand	HKS
Model	VFD Drive A2 Series
Category	Controller
Language	English