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Hitachi HFC-VWS3EH Series Instruction Manual page 104

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The
causes
on
TRIP
display
Overcurrent
TRIP
(OC. ACCEL,
OC.DECEL,
OC.DRIVE)
Isn't
the
output
ter-
minal
(U,
V, W)
short-
circuited?
Repair
the
short-circuited
point.
NO
Is ground
fault
present?
Repair
ground
fault
points.
NO
Isn't
the
load
too
heavy?
Reduce
the
load
or
increase
the
motor
inverter
capacity.
NO
Isn't
the
setting
of
acceleration/decelera-
tion
time
too
small
for
the magnitude
of
load GD*?
*Set
the acceleration/de-
celeration
time
to
a longer
level.
'Use
the
regenerative
unit.
-Increase
Fstop-T
setting.
YES
= |
Reduce
it.
YES
Isn't
the jogging
frequency
too
high?
N
Isn't
the starting
frequency
too
high?
NO
Isn't
the
V.boost
too
high?
NO
Inverter
failure
NO
(0)
-
Reduce
it.
Reduce
it.
-
98 -

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