Fuji Electric FVR-E11S-7EN

7-4
(7) Memory error Er1, keypad panel communication
error Er2, CPU error Er3
(8) Output wiring error
Er1/2/3 display,
irregular display or
dark display
Turn the power
off, wait until the
charge lamp
(CRG) is unlit,
then turn the
power on again.
YES Check if the
correct data is
displayed on the
LED.
Failure of the
inverter. Contact
Fuji Electric.
NO
Output wiring
error Er7
YES
Check if the braking
unit or damping
resistor is
erroneously
connected.
Connect correctly
or correct the
wiring.
Check if the error
occurs during
tuning.
NO
Correct the point of
trouble.
Check if the
connectors, sockets,
ICs and other parts
are properly
connected and if
there is no source of
electric noise
nearby.
NO
The inverter is
correct. continue
operation.
NO
Failure of the inverter
or malfunction due to
electric noise or other
cause is probable.
Contact Fuji Electric.
YES
Check if the circuits
at terminal U, V and
W are disconnected
or there is a broken
wire in them.
Connect correctly
or correct the
wiring.
NO
YES
Check if the
connector for
connecting the
keypad panel is
disconnected.
Insert the
connector.
NO
YES
Check if control
terminal FWD or
REV is connected
with the CM
terminal.
Disconnect the
connection.
NO
Failure of the inverter
or malfunction due to
electric noise or other
cause is probable.
Contact Fuji Electric.
Input phas e lack Lin
YES
Check if all the
power supply
terminals L1/R,
L2/S and L3/T of
the main circuit are
connected with
cables.
Connect all the
three phases.
NO
YES
Check if the screw
of the terminal
block is loose.
Tighten the screw
of the terminal
block.
NO
YES
Check if there is a
large voltage
imbalance among
three phase supply
phases.
The power supply
is faulty. Inspect
the power supply
system including
wiring.
Failure of the inverter
or malfunction due to
electric noise or other
cause is probable.
Contact Fuji Electric.
(9) Input phase lack
Input phase loss Lin
unbalance
(9) Input phase loss
P24
YES
braking