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2. OPERATION
2-3-4 Alarm mode
The current alarm, past alarm history and parameter error are displayed. The lower
2 digits on the display indicate the alarm number that has occurred or the param-
eter number in error. Display examples are shown below.
Name
Current alarm
Alarm history
Parameter error
Functions at occurrence of an alarm
(1) Any mode screen displays the current alarm.
(2) The other screen is visible during occurrence of an alarm. At this time, the decimal point in the
fourth digit flickers.
(3) To clear any alarm, switch power off, then on or press the
screen. Note that this should be done after removing the cause of the alarm.
(4) Use parameter No. 16 to clear the alarm history.
Display
Indicates no occurrence of an alarm.
Indicates the occurrence of alarm 33 (overvoltage).
Flickers at occurrence of the alarm.
Indicates that the last alarm is alarm 50 (overload 1).
Indicates that the second alarm in the past is alarm 33
(overvoltage).
Indicates that the third alarm in the past is alarm 10
(undervoltage).
Indicates that the fourth alarm in the past is alarm 31
(overspeed).
Indicates that there is no fifth alarm in the past.
Indicates that there is no sixth alarm in the past.
Indicates no occurrence of alarm 37 (parameter error).
Indicates that the data of parameter No. 1 is faulty.
2– 27
Description
button on the current alarm
SET
2
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