Mitsubishi Electric Melservo-H Series, Specifications And Instruction Manual

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4. DISPLAY SECTION AND OPERATION SECTION OF THE CONVERTER UNIT
4.4 Alarm mode
The current alarm, parameter error and point table error are displayed.
The lower 2 digits on the display indicate the alarm number that has occurred or the parameter number
in error.
Display example are shown below.
Name Display Description
Indicates on occurrence of an alarm.
Current alarm
Indicates that alarm 33 (overvoltage) occurred.
Flickers at alarm occurrence.
Indicates that the last alarm is alarm 50.
Indicates that the second alarm in the past is alarm 33.
Indicates that the third alarm in the past is alarm 10.
Indicates that the fourth alarm in the past is alarm 10.
Indicates that the fifth alarm in the past is alarm 10.
Indicates that the sixth alarm in the past is alarm 50.
Indicates that there is no seventh alarm in the past.
Indicates that there is no eighth alarm in the past.
Indicates that there is no ninth alarm in the past.
Alarm history
Indicates that there is no tenth alarm in the past.
Indicates no occurrence of alarm 37(parameter error).
Parameter error
Indicates that the data of parameter No.1 is faulty.
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
dight digit flickers.
(3) To clear any alarm, switch power off, then on or press the "SET" button on the current alarm screen.
Note that this should be done after removing the case of the alarm.