Alarms; About This Unit; Alarm Clearing - Daikin MicroTech III Operation Manuals

About this Unit

Table 58: About this Unit Menu
Menu Display Name
About this Unit
SO_Item is an adjustable item which can be used to store the
sales order number of the unit for reference purposes .
Unit SN is an adjustable item which can be used to store the
serial number of the unit for reference purposes.
App Version is the version of application code loaded into the
controller
Cf1-15 describe positions 1-15 of the unit configuration string
Cf16-30 describe positions 16-30 of the unit configuration string
Main BSP is the current version of firmware in the main
controller
LON BSP is a status only item which indicates the current
version of firmware in the LON communication module
connected to the main controller .
LON App Ver is a status only item which indicates the current
version of application code in the LON communication module
connected to the main controller .
BACnet BSP is a status only item which indicates the current
version of firmware in the BACnet communication module
connected to the main controller .
D-Net BSP is a status only item which indicates the current
version of firmware in the D-Net communication module
connected to the main controller.
HMI GUID is the HMI software identifier number unique to each
application code version
OBH GUID is the OBH software identifier number unique to
each application code version

Alarms

Alarms provide the user with information about abnormal
conditions that affect unit operation . The cause of the alarm
should be investigated and eliminated before the unit or any
disabled equipment in it is placed back into service .
OM 920-6 • MICROTECH UNIT CONTROLLER
Item Display Name
SO_Item=
Unit SN=
App Version=
Cf1-15=
Cf16-29=
Main BSP=
LON BSP=
LON App Ver=
BACnet BSP=
D-Net BSP=
HMI GIUD=
OBH GIUD=
78
Faults are conditions that are serious enough to shut down
the unit . The alarm must be manually cleared to allow unit
operation .
Problems are conditions that result in some limitation of unit
operation, but the unit is allowed to continue to operate . Some
of these alarms must be cleared manually, but others clear
automatically .
Warnings inform the user of conditions that should be
addressed, but do not limit operation in any way . The alarm
condition needs to be fixed and the alarm must be manually
cleared to cause this alarm to no longer be active .
All active alarms as well as the date and time that they were
detected are displayed on the Active Alarm menu . These
alarms are displayed in order of priority . Higher priority alarms
are displayed first. The last fifty alarm "events" detected as well
as the date and times that they were detected are displayed
on the Alarm Log menu . An alarm "event" is either an alarm
becoming active or being cleared . A "+" symbol precedes the
active alarm event and a "-" symbol precedes the cleared
alarm event . These alarms are displayed in the order that they
were detected . The alarm that was detected most recently is
displayed first. Multiple occurrences of the same alarm may
appear .

Alarm Clearing

Active alarms can be cleared through the keypad/display or a
BAS network . Alarms are automatically cleared when power
is cycled . Alarms are cleared only if the conditions required
to initiate the alarm do not exist . All alarms and groups of
alarms can be cleared via the network or keypad by setting the
ClearAlms variable to a non-zero value as indicated in the table
below . Emergency Off Faults can be set to automatically clear
once the condition that caused the alarm is corrected . This
can be accomplished by navigating to Commission Unit/Alarm
Configuration/Emerg Stop and changing the default ManClr
value to AutoClr .
NOTE: The enumeration text is what shows up on the
keypad/display not the number . The value of this
variable automatically reverts to zero when the
alarms are cleared . This variable may be set through
the keypad in the Active Alarm menu . It may be set
via LON using nviClearAlarms and via BACnet using
the ClearAlarms object.
Table 59: Alarm Clearing
Value
0
1
2
3
4
a
larMs
a
larMs
Action
None
Clear All Faults
Clear All Problems
Clear All Warnings
Clear All Alarms
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