A-TS
75
https://a-ts.cn/en/
Fault
code
Display
code
Fault
description
Possible reasons
Actions
Too low inverter power
Select the
inverter with
larger capacity
F.oC3
.
Over-current in
constant speed
operation
Sudden change of
load
Reduce the
change of the
load
Too short Acc/Dec
time
Prolong Acc/Dec
time
Abnormal load
Check the load
Low AC supply voltage
Check the AC
supply voltage
Too low inverter power
Select the
inverter with
larger capacity
F.oU1
.
Over voltage in
Acc process
Abnormal AC supply
voltage
Check the AC
supply voltage
Too short Acc time
Prolong the Acc
time
The inverter is
re-started with a
rotating motor
Start when the
motor stops
F.oU2
.
Over voltage in
Dec process
Too short Dec time
( with reference to
generated energy )
Prolong the Dec
time
The load inertia is too
high
Use suitable
dynamic braking
device
F.oU3
.
Over voltage
inconstant-spee
d operating
process
Abnormal AC supply
voltage
Check the AC
supply voltage
Too short Acc/Dec
time
Prolong the
Acc/Dec time
Abnormal change of
input voltage
Install input
reactor
Too high load inertia
Use suitable
dynamic braking
device
F.PoU
.
Reserved
Reserved
Reserved
F.IPL
.
Reserved
Reserved
Reserved
