Service manual
www.enc.net.cn/en Tel/Fax:86-755-26984485/26985120 7 Troubleshooting
111
E008 Inverter overloa
d
Accel time is set to too short Prolon
g
acceleratin
g
time
DC injection braking is too big
Reduce DC injection braking
current,
p
rolon
g
brakin
g
time
improper V/F curve Adjust V/F curve and torque boost
Restart rotatin
g
moto
r
Set s
p
eed checkin
g
restart function
p
ower source volta
g
e is too lo
w
check
p
ower source volta
g
e
Load is too big Choose inverter with high-
p
owe
r
E009 Motor overloa
d
improper V/F curve Adjust V/F curve and torque boost
power source voltage is too low check power source voltage
General motor run at low speed
with big load
Can choose frequency conversion
motor for long time low speed run
motor overload protection factor
set incorrectly
to set motor overload protection
factor correctly
motor blocked u
p
or load change
too suddenl
y
and
q
uickl
y
Check the load
E010 inverter over
heating
Air-path blocked
To clear ai
r
-
p
ath or improve
ventilation condition
Ambient temperature is too high
Improve ventilation condition, lower
carrier frequency
Fan damaged Replace the fan
E011
overvoltage over-fast shutdown
Increase the deceleration time or
increase
E012 Input power loss
phase
Input power line loss phase Check the inverter input power
p
hase loss or a certain phase poor
contact or not (it may be necessary
in the case of the inverter with a load
test
)
E013 Inverting module
protection
Transient overcurrent of the
inverte
r
Refer to countermeasure fo
r
overcurrent
p
hase to phase short circuit or
earthing short circuit of output 3
p
has
e
wiring again
Ai
r
-
p
ath blocked or fan
damaged
To clear air-path or replace the fan
Ambient temperature is too high Lower ambient temperature
Connecting wire or insert on
control board loose
Check and connect the wire again
Unwonted current wave caused
by
missin
g
out
p
ut
p
hase etc.
Check wiring
Assistant power supply damaged
and drive volta
g
e lackin
g
Look for service from manufacturer
or a
g
ent
Unwonted control board
Look for service from manufacturer
or a
g
ent
E014 external device
failure
use sudden key
in non-keypad run mode
Look up operation mode
Use sudden key
under condition of stall
Set running parameter correctly
Sudden stop terminal for
external failure closed
Open external failure terminal after
external failure is settle
d
E015 current detecting
circuit failure
Connecting wire or insert on
control board loose
Check and connect the wire again
STOP
STOP