Building Technologies
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TEL50.GSM
7.3 Alarm notification enabling
The TEL50.GSM can handle the following alarms:
-
Contact IN1 closed alarm
-
Temperature threshold exceeded alarm
7.3.1 IN1
closed
alarm
This alarm may come from any device whose status needs to be monitored (eg. home alarm system, boiler burner block, etc.).
A potential-free contact must be used. When the contact is closed, an SMS is sent to all the users on the USER list (both fixed
and mobile numbers). The text of the message will contain “ALARM IN1” or ALARM followed by a new identification string for
the IN1 input if it has been changed.
7.3.2 Temperature
alarm
This alarm can only be generated if the temperature sensor LG-Ni1000 is correctly connected to the respective input. The alarm
and reset values must be set according to a hysteresis cycle. The values themselves will define the alarm activation logic. If the
ALARM value is greater than the RESET
value, the alarm will be triggered if the current value is higher than the alarm value.
Consequently, the alarm will stop if the current value is lower than the reset value. If the
ALARM
value is lower than the
RESET
value, operating will be reversed. The factory settings are ALARM=5°C and RESET=6°C (frost protection). The user can modify
the alarm and reset thresholds as shown in the examples below.
When an alarm is triggered, an SMS is sent to all the users on the USER list (both fixed and mobile numbers). The text of the
message will contain ALARM TEMP or ALARM followed by a new identification string for the ANALOG/TEMP analogue input if
it has been changed.
