Hitachi J300 Series Instruction Manual page 75

Syrnptor,
Cause
(explanation
ofmessage)
d
Chcck
a"r",a-a-*
I
a
a
F
s
Display on the
LCD of the
digital operator
(display on the
LCD of rhe
6
:1
a
t r u o
( O L . B R D )
o
The regenerative
brdking time is longer
by the lalue se1 by
BRD9oED.
Check the braking resisbr
usc rario set in ffi.
' S€t a longer deceledb,
. Set a larger operation
dutycycre.
' s * M t o @ .
E 0 7
( O v e r . V )
o
Olervohage in de DC
smoothing circuit
Check whether ihe speed
was decreased npidly.
Set a longer deceleratim
rirne.
Check whethcr the motor
was nrn from the load side.
Do nor usc conscculive
Check whe$er thcrc is a
ground iaull.
Check whcthcr the ouapur
lines or molor is shoned.
E O B
( E E P R O M )
o
EEPROM cnor Check whcrher thcrc is a
large noise source near the
Mole the noise source
Check whelher the anbienr
tempenture is too high.
Replace the cooling fan.
E 0 9
( U n d e r . V )
o
D€fective power
supply (insufficient
vorngc)
Check whelher the voltage
Check lhe power supply.
Check whether the MCB or
Mg has a poorcontact.
Replace th€ MCB of Mg.
Check whether l0 ormore
oulages wilhin 100 rns
occuned in l0 minutes.
Check the powe. supply.
E 1 0
(cr)
o
CT cnor
Chcck whcthcr lhc CT is
Rcpair thc CT.
E t l
( C P U )
o
CPU crrof
Chcck whclhcr lhcre is a
largc noise source neaf the
Move lhe noise soufc€
Check whelher the inverter
is defecdve.
Repah the inlerter.
E t z
( E X T E R N A L )
o
Extemal trip
Check wherher there was a Eliminate lhe eror from
t r t J
( u s P )
o
USPeror Check whether powef wr!
tumed on while the invener
wa! running when the USP
Eliminnte the enor tiom
9-2