Instructions / Assembly

A2
Inverter (0.75-30kW)
Display Meaning
Cause
Diagnosis
OC –u
Acceleration Small acceleration Increase acceleration
overcurrency time or component time
fail
OC –d
Deceleration Small deceleration Increase deceleration
overcurrency time or component time
fail
OC –r
OT –o
Steady state
overcurrency component fail
Overheat
while stop
overload or
Check motor load
High environment Check whether air
temperature or fail temperature is over 50,
temperature sensor check CZ55 connection
High environment Check whether air
temperature, small temperature is over 50,
OT –u
OT –d
OT –r
Overheat
while
acceleration acceleration time
increase acceleration
time
Overheat
while
deceleration deceleration time
High environment Check whether air
temperature, small temperature is over 50,
increase deceleration
time
Overheat in
steady state
High environment Check whether air
temperature,
overload
temperature is over 50,
check overload
9.2 Other unexpected fault
1
、Inverter is in normal condition but without any output
1
2
. Internal fuse fail
. Internal drive module fail
1
9