-
........
........
.-
.....
......
,.
..~,
24.
TROUBLESHOOTING
Notes:
'1.
'2.
'3.
'4.
If
the
inverter is reset, the accumulated internal thermal data of the electronic thermal
relay is initialized.
If
"0'
is
set
for Pr.9 (electronic thermal
relay),
the motor overload
shut-off prevention function
FHM)
is invalid.
This function
is
valid only when the "external thermal relay" is set.
The lunction is valid only when the optional brake resistor is connected. (Brake resis-
tor cannot
be
used for O.lk and 0.2k. These drives have
ria
brake transistor.)
The stall prevention lunctim activation current level can
be
set as required. Factory-
setting is
150%.
0
Retaining the error output signal
0
Error display
...............................
0
Resetting procedure
....................
If
the power input
to
the
inveder power
supply side, is opened, when the protection
function is activated, the inverter control
power supply is
lost
and the error output sig-
nal cannot
be
retained.
If
the error output
signal must
be
retained, the drive wiring
must
be
designed to retain the error output
signal externally. See the block diagram for
inlormatin.
If
the protection function is activated, the
alarm
(ALARM)
indicating lamp is
lit.
In
response to the operation of the parameter
unit, the display unit gives the indication
shown above.
If the protection function is activated, the in-
verter output shut-off state is retained. Con-
tinued operation is impossible unless the
inverter is reset. The inverter reset proce-
dure is indicated in page
48.
-
109-
......
-.
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