Hitachi HFC-VWS3EH Series Instruction Manual page 98

- 92 =
T
eae
|
Symptom
of malfunction
|
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ji
v
Oj
oO
~
a
EAE
E Ei ang
m
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y
v
SE
Display
on
ie
'
P
fac
rw
20
v
digital
a
ause
for
fault
7
Check
inë
s
ted
d
=
z 8 *
operation
=
| (Message
contents)
ae a ra
MEESS
ted.
renmegy
os
gjg
panel
EE
y
o
onjh
(2ERROR
io
a
2
esis
mom)
| 8
g
oO
Qo
le
LA
fis
me
++
CPU
v
(CPU
error)
A | Check
that
no
large
Keep
the
noise
source
noise
source
is found
away
from
the
unit.
nearby.
Inverter
abnormal
Repair
+}
=
od
GND
Fit
Vv
Ground
fault
A | Check
the
short
Repair
the
short
circuit
between
circuited
lines.
inverter
output
lines
and
the
ground.
mt
+--+
mand
NG - JOG
va
(The
jogging
mode
A | Check
that
power
has
With
the
jogging
mode
is used
inadvertent-
been
turned
ON with
ON,
do not
turn
ly)
the jogging
mode
ON,
power
ON,
switch
commercial
power
commercial
power
supply
voltage
has
supply
voltage
or
been
switched
or
reset]
reset.
operation
has
been
performed.
Insufficient
MCB
Increase
MCB
capacity
capacity.
-
Inverter
module
or
Repair
converter
module
damaged.
o
=
-
Power
failure
B | Check
for the power
Review the power
failure.
supply
system.
Check
that
no
poor
Replace
MCB
and Mg.
contact
of MCB
and Mg
is found.
=
fa eee
o
z
-
-
C | Overload
Reduce
the
load
factor.
Thermal
relay
preset
Set
the
preset
value
value
faulty
to a proper
one.
NG. DB
Vv
DB
terminal
was
A | With
DB ON,
power
has
With
DB ON,
do not
used
inadvertently.
been
turned
ON or
turn
power
ON
or
reset
operation
has
reset.
been
performed.
ee: cet io ere A
-P
__|
UV WAIT
=
Supply
voltage
~
| When
restart
function
Review
the
power
abnormal
was selected,
supply
supply system.
voltage
dropped
to
(Undervoltage)
undervoltage
level or
less.
OV .BRD
o
BRH terminal
is
A | Check BRH-L
short-
Connect
BRH with
i
-not
connected
circuited.
L.
with
L terminal.
i=
loading