Hitachi J300 Series Instruction Manual page 74

r . l
Error Messages and Diagnosis
When the invener goes wrong, it operates as indicated below. Find the cause and take
conlerneasutes.
\OTD l: How to resel
A: srop the inven€r. Then, connect th€ <Rs> and <P24> conrol terminals or p,."" *r" @ rcy on tr"
op€ate the circuit breaker and electromagnedc
contactor (tum the power on again).
Stop the inverter. Then, reset dle tiermal relay.
9-1
B :
C:
Enor Messages and Diagnosis
Synptom
Cause
(erplanation
d
a
z
a
Check
E-
d_
a
Display on lhe
LCD of the
digitalopenlor
(drsplay on lhc
LCD of the
a
E 0 1
( O C . D r i v e )
o
by the AC CT while
the motor was runnrng
(o!ercurcnt dur'ng
operation)
Chcck whcihcr a load was
changedrapidly.
Do not change loads
rap'dly.
Check whcther thcrc is a
shoncd oulput or ground
hult.
Check whether the oueul
lines or molor is shoned.
E 0 2
( o C . D e c e l )
o
by the Ac cT during
Check whether the speed
was decrcased rapidly.
Set a longer dccclcration
Check whelher there is a
shoned output or ground
Check wherher the ourput
lines or molor is shoned.
E 0 3
( O C . A c c e l )
o
by the AC CT during
(overcunenr
during
Check wheiher a load was
changed mp'dly.
Do nor changc loads
rapjdly.
Check whether there is a
shoned ourput or ground
fauh.
Check wherher lhe outpur
lincs of molor is shorted.
Check whether the sran
lrequenct is too high.
t wer the sran irequ€ncy.
Check whether the torque
boost is too high.
t wcr thc torque boost.
Check whether thc motor is
Check lhe rnolor or loads.
E 0 5
( O v e r . L )
o
Ovcrloadcd invcner
ovcrload)
Chcck for an ovcrload.
Check wheiher the
elcctronic ilcrmal l€vel is
conect. (Check whether the
l€Yel has been changed.)
Ser an appropriate
level.