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Hitachi HFC-VWS3EH Series Instruction Manual page 10

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Item
VWS;
Series
Common
SPEC
Frequency
monitor
Pulse
duty control
output
(Digital
frequency
counter,
analog
meter:
O to 10V
DC,
1 mA full
scale
connectable)
Output
signal Fault
alarm
relay
OFF when
the
inverter
is abnormal
or without
input
power
supply
(łc contact
output)
Overcurrent
Individual
LCD display
of overcurrent
at acceleration,
operation
and
deceleration
Overvoltage
Trip
at approx.
400V
of converter
output
voltage
(200V
class),
approx.
800V
(400V
class)
Protection
using
electronic
thermal
relay
(Settable
to
50
to
100%)
Protective
function
Fin
overheat
Protection
using
thermal
relay
(Refer
to Note
4.)
Undervoltage
Trip
at
less
than
150
to 160V
Trip
at
less
than V1 of input
voltage
A
280
to 320V
(400V
class:
up to
of input
voltage
(200V
class)
75HF3EH)
Vl: 1320 to 360V (400V class: 100 to
180HF3EH )
oe
Instantaneous
power
failure
Operation
continues
for
15 ms
or
less
power
failure
(When restart
function
is selected,
restart
is possible
in 0.3 sec.)
See
Note 6.
Stall
prevention
Prevention
of
stall
at overcurrent
and overvoltage
Ground
fault
protection
Refer
to Note
5.
Relay
output
of
frequency
Contact
OFF
at frequency
arrival
(lb contact
output)
arrival
signal
Relay
output
of running
signal | Contact
ON during
running
(la contact
output)
is performed.
Speed
setting
signal
0 ~% 20 mA
(Input
impedance
250 Q)
Inverter
output
current
signal | Output
with
DC voltage
(4V DC output
at inverter
rated
current)
Optional
function
DC brake
external
command
DC braking
operation
with
la contact
command
Ambient
temperature
-10 ~ 40°C
(33 - 180HF3E:
-10 ~% 50°C)
(Without
terminal
cover
:
-10 % 50°C,
storage
temperature
:
-20 % 60°C)
20 ~ 90% RH
(No dew
condensation
allowed)
See Note
7)
As per JISCO911
(1984)
Operating
site
1,000m
or
less
in altitude,
indoors
(place
free
of corrosive
gas
specification
General
and
dust
or
dirt)
External
color
Munsell
5Y5/1,
(1.5 % 3.5SF3EH,
2.5 ù% JIHF3EH
diecast
cases
are
black
corresponding
to Munsell
N3.)

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