Alarm And Maintenance Management; Origin Of Alarms; Threshold Alarms; High And Low Room Temperature Alarm - Mitsubishi Electric s-MEXT-G00 006 Technical Manual

TM_s-MEXT_ME28relC_00_12_19_EN
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.

NO alarm
Differential
15.2.2

High and low room humidity alarm

NO alarm
Differential
Technical manual
ACTIVE alarm
T
P22.02
ambient
2°C
Figure 15-1: High and low room temperature alarm activation chart
ACTIVE alarm
P22.04
3%
Figure 15-2: High humidity alarm enable chart
ACTIVE alarm
(°C)
P22.01
ACTIVE alarm
RH (%)
ambient
97
NO alarm
Differential
2°C
P22.03
Differential
3%
TRANSLATION OF THE ORIGINAL INSTRUCTIONS
T (°C)
ambient
NO alarm
RH (%)
ambient