Mitsubishi Electric Fatec GOT2000 Series Basic Training Textbook page 190

(b) Alarm history collecting method
The following shows the alarm history collecting method.
• History mode
Adds the alarm contents to the user area of the GOT for each alarm occurrence.
• Cumulative mode
Collects the latest alarm status and the alarm counts or time together for each alarm.
• Only the current alarm
Displays only the alarm in occurrence, and deletes the display after the alarm restoration.
Depending on the collecting method, the types of information collected differs.
Example) Alarm Display (User)
Error date and time
Jun. 1, 2013 20:00
Jun. 1, 2013 18:30
Jun. 1, 2013 16:10
(1)
Displayed
information
(1) Date of
occurrence
(2) Comment
(3) Alarm status
(4) Restored
(5) Checked
(6) Frequency
(7) Cum.time
(8) Down time
App - 6
Comment Alarm status Restored Checked Frequency Cum. Time Down Time Level
Power supply unit error
Hydraulic pressure failure Checked
Drive module error Checked
(2) (3)
History mode
Displays the date and time when an alarm occurs.
Displays the comment assigned to the alarm at the alarm occurrence.
Displays the alarm status that is currently displayed.
• Occurred: The alarm has occurred. (The occurrence of the alarm has not been checked.)
• Checked: The occurrence of the alarm has been checked.
• Restored: The monitor target already recovered from the alarm.
Displays the date and time when the monitor target recovered from the alarm.
Displays the date and time when an alarm occurrence has been checked.
Check the occurrence of the alarm with a touch switch for the alarm check.
Comment Restored Checked
Power supply unit error
Displayed only for the cumulative mode.
-
Displays the number of error occurrence.
Displayed only for the cumulative mode.
Displays the total time of alarm occurrence including the past
alarm occurrence time.
-
Alarm
occurrence
status
(M10)
Displayed only for the cumulative mode.
- Displays the time from the alarm occurrence to the alarm
restoration.
- - -
- 18:50
16:30 16:20
(4) (5)
Description
Cumulative mode
Checked
- -
Key code: FFB4h or FFB5h
Cum. Time
An alarm occurs. An alarm occurs. An alarm occurs.
(First time) (Second time) (Third time)
ON ON
OFF OFF
Down Down
time A time B
1 - -
2 - -
2 00:40 00:20
(6) (7) (8)
"Occurred" status
Comment Restored Checked
Power supply unit error
ON
OFF
Down
time C
Time
Group
1 2
1 1
2 1
(9) (10)
Alarms in the
only
- 19:00
-
-
-