Event Notification Relay; Event History; General Information; Event Log Display - User Level - Mitsubishi Electric s-MEXT-G00 006 Technical Manual

TM_s-MEXT_ME28relC_00_12_19_EN
15.5

EVENT NOTIFICATION RELAY

The control board provides two relay outputs for event signalling.
The "Alarm Out" menu, which can be accessed by entering the "User" password, it is possible to configure the outputs differently from the default setting.
More specifically, these masks may:
•
Set the idle status of the output contacts.
•
Set the contact to direct the alarm to.
The "Alarm Out" menu, accessible through the "User" password, it is possible to configure the output contact idle status. The status may be:
•
Normally open
•
Normally closed
The "Alarm Out" menu, accessible through the "User" password, it is possible to configure, for every type of event included in the configured unit, the contact to address
the alarm to. The operator may choose from:
•
Output "A".
•
No outlet.
•
Output "B".
All events are set by default to output "A".
15.6

EVENT HISTORY

15.6.1

General information

Thanks to the control board buffer memory, events can be recorded.
The recorded events are the following:
•
All events.
•
Every time the conditioning unit turns on, meant as controller start.
•
Any intervention in the Demand Limit mode (if enabled).
The events log has two access levels:
•
User level.
•
Service level.
15.6.2

Event log display - User Level

The User level log, which can be accessed from th "History" menu, which can be accessed from the main menu, shows all the events, with the exception of Warnings.
It is possible to filter the events according to position by choosing between:
•
ALL: All events, without any distinctions in terms of position, will be displayed.
•
Compressor: Only the events involving the compressor will be displayed.
•
Circuit: Only the events involving the circuit will be displayed (water or gas).
•
Unit: Only the events involving the unit will be displayed.
•
Plant: Only the events involving the system will be displayed (external from the unit).
A screenshot of the filter-setting mask for the User level is shown below:
Once the filter to be applied has been selected, press the [ENTER] key to access the event mask.
15.6.3

Event log display - Service Level

The Service level log, under the "History" menu, which can be accessed by entering the "Service" password displays all the events, applying up to two filters.
The first filter can be used to select the event type to display:
•
ALL: All events, without any distinctions in terms of type, will be displayed.
•
Signal: Only Signal events are displayed.
•
Alarm: Only Alarm events are displayed.
•
Signal & Alarm: Only Signal and Alarm events are displayed.
•
Warning: Only Warning events are displayed.
Similarly to the user level, the second filter is used to select the location to display:
•
ALL: All events, without any distinctions in terms of location, are displayed.
•
Compressor: Only the events involving the compressor will be displayed.
•
Circuit: Only the events involving the circuit will be displayed (water or gas).
•
Unit: Only the events involving the unit will be displayed.
•
Plant: Only the events involving the system will be displayed (external from the unit).
Technical manual
(in this case it is possible to detect also the lack of power feed to the board)
Filter
for alarm event
Location: ALL
TRANSLATION OF THE ORIGINAL INSTRUCTIONS
99