TM_s-MEXT_ME28relC_00_12_19_EN
Technical manual
TRANSLATION OF THE ORIGINAL INSTRUCTIONS
97
15
ALARM AND MAINTENANCE MANAGEMENT
15.1
ORIGIN OF ALARMS
The alarms managed by the software fall into the following categories:
•
Alarms from external contacts: When the contact switches from closed to open, an alarm event is generated.
•
System alarms: Alarms coming directly from the control board diagnostics routine.
•
Threshold alarms: Alarms directly generated by the software as a result of thresholds that can either be fixed or set from the user terminal.
15.2
THRESHOLD ALARMS
INFORMATION
The high/low temperature and high/low humidity alarms may occur even when the unit is turned off.
The parameters for enabling and configuring are in the
“Settings” menu
, which can be accessed by entering the
“Service” password
.
The setpoint and differential parameters of the following alarms can be found under the
“Settings” menu
, which can be accessed by entering the
“Service”
password
. For
the default values, see the parameters table.
15.2.1
High and low room temperature alarm.
T
ambient
(°C)
Differential
2°C
ACTIVE alarm
P22.02
NO alarm
Differential
2°C
ACTIVE alarm
P22.01
NO alarm
T
ambient
(°C)
Figure 15-1:
High and low room temperature alarm activation chart
15.2.2
High and low room humidity alarm
Differential
3%
ACTIVE alarm
P22.04
NO alarm
RH
ambient
(%)
Differential
3%
ACTIVE alarm
P22.03
NO alarm
RH
ambient
(%)
Figure 15-2:
High humidity alarm enable chart
