Maintenance Operation; Abnormality History And Operation History - Mitsubishi Electric MJ-310E Operation Manual

Air conditioning control system
Table of Contents

Advertisement

8. Maintenance Operation

8.1 Abnormality History and Operation History

There are two kinds of history: Abnormality history and Operation history.
- Abnormality history: Displays abnormalities that occurred in the past. (WHM abnormality history is not recorded.)
- Operation history: Displays the operations (start, stop, etc.) performed in the past.
(1) Switch from Management screen to history screen
[Procedure]
1) Select History
Click the History function select button.
2) Select the object whose history is to be displayed
When the object whose history is to be displayed is clicked, the History
screen opens.
Note:
- For a description of the underlined part, see par. "6.0 (2) Select the operation object" to be operated.
Perform the following operations from the History screen.
(2) Description of History screens
Abnormality history
The Abnormality History screen displays air conditioner failures, transmis-
sion failures, and other abnormalities in the order in which they occurred.
Up to 1000 items can be displayed. When the number of items exceeds
1000, the items are deleted in ascending order.
Occurrence time: Displays the time the abnormality occurred.
Recovery time:
Displays the time the abnormality recovered. Blank
indicates that the abnormality is still in effect.
Origin address:
Displays the G/W No. and address of the equipment at
which the abnormality occurred.
Occurrence point:Displays the occurrence floor at the left and the group
or equipment name at the right.
Contents:
Displays the error code and its description.
Operation history
The Operation history screen displays the operations performed at the air
conditioner. Up to 10,000 items can be displayed. When the number of
items exceeds 10,000, the items are sequentially deleted in ascending
order.
Operation time: Displays the time the operation was performed.
Controller:
Displays the equipment that issued the operation com-
mand.
Object address: Displays the controller G/W No. and address.
Operation point: Displays the occurrence floor at the left and the group or
equipment name at the right.
Contents:
Displays the contents of the operation that was per-
formed.
(3) History screen operation
The Abnormality History and Operation History screen displays can be
switched and updated.
[Procedure]
History display switching
When the Abnormality history button is clicked, the display switches to the
Abnormality History screen and when the Operation history button is
clicked, the display switches to the Operation History screen.
Display updating
When Update of display button is clicked, the display is updated to the cur-
rent history. The updated time is displayed at Display Time.
21
Abnormality History screen
Operation History screen

Advertisement

Table of Contents
loading

Table of Contents