Fuji Electric FVR-C11S-7EN Series - Page 38

FVR-C11S-EN
3-3 3 Operation
3
Check the followin
g
items:
a) Rotation direction
b) Whether rotation is smooth (whether there
is a motor buzzin
g
noise or abnormal vi-
bration)
c) Whether acceleration and deceleration are
smooth
d) Whether the inverter coolin
g
fan is rotatin
g
(1.5kW or more)
If no abnormalit
y
is detected, check the item
a
g
ain b
y
increasin
g
the frequenc
y
.
Even if the output from the inverter is stopped,
y
ou will be
g
et an electric shock when
y
ou touch
the main circuit terminals such as inverter output
terminals U, V and W if the volta
g
e is supplied to
the main power suppl
y
input terminal.
The smoothin
g
capacitor in the inverter has
been char
g
ed when the power is turned off and
it is not dischar
g
ed immediatel
y
. Before touch-
in
g
the electric circuit, wait until at least five min-
utes have elapsed after power-off and the
char
g
e lamp is off, indicatin
g
the volta
g
e is al-
read
y
low.
After checkin
g
normalit
y
in the above trial run,
start operation.
WARNING
1. The STOP ke
y
is valid onl
y
when the func-
tion has been set.
Assi
g
n another switch to emer
g
enc
y
stops.
Otherwise accidents could occur.
2. Operation starts suddenl
y
if alarm reset is
done with an runnin
g
si
g
nal input. Check
that no runnin
g
si
g
nal is input before alarm
reset.
Otherwise accidents could occur.
CAUTION
Do not touch the heat sink.
Otherwise burns could occur.