E6581386
M-5
13
(Continued)
Error
code
Problem Possible causes Remedies
Undervoltage in
main circuit
•The supply voltage between R, S
and T is under voltage.
•Trouble of rush current restraint
circuit or DC circuit fuse.
•Measure the main circuit supply voltage.
If the voltage is at a normal level, the inverter
requires repairing.
•Make a service call.
Retry
•The inverter is in the process of
retry.
•A momentary stop occurred.
•The inverter is normal if it restarts after several
tens of seconds. The inverter restarts
automatically. Be careful of the machine because it
may suddenly restart.
Point setting
alarm
•The frequency setting signals at
points 1 and 2 are set too close to
each other.
•Set the frequency setting signals at points 1 and 2
apart from each other.
Clear enabling
indication
•This message is displayed when
pressing the STOP key while an
error code is displayed.
•Input terminal RES signal is ON
during trip display.
•Press the STOP key again to clear the trip.
•Turn off the input terminal RES signal.
Emergency stop
enabling
indication
•The operation panel is used to stop
the operation in automatic control
or remote control mode.
•Press the STOP key for an emergency stop. To
cancel the emergency stop, press any other key.
/
Setting error
alarm
An error code
and data are
displayed
alternately twice
each.
•An error is found in a setting when
data is reading or writing.
•Check whether the setting is made correctly.
DC braking
•DC braking in process •The message goes off in several tens of seconds if
no problem occurs. [Note]
Shaft fixing in
control
•Motor shaft fixing control is in
process.
•If the message disappears by stop command (ST
(terminal to which the ST function is assigned)-CC
open), it is normal.
In forced
operation
•It is displayed at setting the
parameter to “”.
•“” and operation frequency is
displayed alternately in operation of
forced fire-speed control.
•Continue to press the ENTER key for 2 seconds at
setting the parameter to “”.
•It is normal the alarm is gone out after the forced
fire-speed control operation.
Setting error
alarm
•It is displayed at setting the
parameter to “” or “”.
•No operation at setting “” or “”.
•Please select the parameter to other numbers
except “” and “”.
Panel indication
overflow
•The digit number of the item
displayed, e.g., frequency, is in
excess of the specified digit
number.
(Number of overflowing digits is
indicated.)
•For indication of frequency, set multiplying rate
() lower. (Parameter setting that results in
overflow is of course valid.)
Parameters in
the process of
initialization
•Parameters are being initialized to
default values.
•Normal if the message disappears after a while
(several seconds to several tens of seconds).
In auto-tuning 1
•Auto-tuning 1 in process. •Normal if it the message disappears after a few
seconds.
Auto-stop
because of
continuous
operation at the
lower-limit
frequency
•The automatic stop function of
is being performed.
•This function is deactivated when the command
frequency becomes 0.2Hz or more higher than the
lower-limit frequency (LL) or when a command for
stopping operation is entered.
Momentary power
failure slowdown
stop prohibition
function activated.
•The deceleration stop function of
(regenerative power ride-
through control) is activated.
•To restart operation, reset the inverter or input an
operation signal again.
/
Display of
first/last data
items
•First and last data in the
group.
•To exit from the group, press the MODE key.
Key operation
permitted
temporarily
•This message appears if the
ENTER key is pressed and held
down for 5 seconds or more when
key operation is prohibited by
.
•When this message is displayed, all the keys are
operational. To prohibit key operation again, turn
off the inverter and then turn it back on.
Note: In the case of DC injection breaking ON/OFF function is selected for an input terminal; if “” disappears as a
result of open-circuit between the terminal and CC, it is normal.
To Next Page
Loading...
