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Hitachi HFC-VWS3EH Series Instruction Manual page 74

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Function
eade/
Setting/
Function|
Operation
Display
Changing
Contents
Range
name
25 | (F-30)
- Constant
for overload
limit
sate
,
characteristics:
reduce
the
Dver load
Initial
setting
value
(1.0
Hz)
preset
value
when
OC
tripping
is
limit
| LM.
CONS
001.
0
liable
to occur
at the standard
betting
=
Z
preset
value.
(See "Overload
Alarm Level
0.3~30
IS
Adjustment"
(F-31) and
"Overload
Limit
Level
(every 0.1)
Adjustment". )
Data
ee
- For
OC.ACCEL,
do not
change
this
constant,
but
increase
the
i>
LM.
CONS
000.5
acceleration
time.
Bon
. When
tripping
is further
liable
aliyvi
to occur,
turn the variable
ame
resistor
OL.LMT
(potentiometer)
counterclockwise
to
reduce
the
limiting
level.
26 | (F-32)
Only during
acceleration,
boost
is
applied
automatically.
Automatic
sued
,
The boost
can be adjusted
in 20
orque
Initial
setting
value (00
steps.
The voltage is increased
boost
V—auto
+00
by approx.
10% at +20.
Adjust-
=
:
ment
Output
l
utput
voltage
(%) When acceleration
0~20
IDPs Sora
n
over, reachi
(every
1)
ior atati
select:
Data
setting
kutomatically.
| >
(No operation is
i
=e
—-
woes
0}
th
tl
mr
V—auto
+20
A
5
z
motor over-
Ajy
uTpN
excited. )
frequency (Hz)
Output (%4)
voltage
Output
(H2)
frequency
When
manual
boost
is
used
together,
the
voltage
is
added
as
shown
above
(
).
Refer
to "Monitor
Mode
7"
te
and "Manual
Torque
Boost".
27
S
The standby time between the instanta-
(F-36)
neous power failure restoration and ope-
ration re-start can be preset.
Standby
iti
i
When the power failure is reset within
cua
Initial
setting
value
(1.0S)
allowable instan
stop time thus
R
preset,
the time before the inverter re-
setting
IPS—-R-T
001.0
S$
starts automatically is set.
for
re-
as
Main
start
0.3%3.0
supply LLLA
UULU LLL
after
(every
0.1)
1
9
instanta
Power fail
neous
Allowable
1
IL. P.F. time
i
i
power
| Data settin
'NTiowable™
(=0.3s)
failure
Inverter
I.P.F.
time
P|
IPS~R-T
003.0
S
output'
t
ro
peas
frequency
15mS
poe
i
t
Standby
aif
we, WML
speed
o> (F-28)
ee
ee

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