EVCO c-pro kilo AHU - Manual (Page 83)

C-PRO KILO AHU APPLICATION MANUAL
Pag. 83
7.3 Alarm relay
The program provides the possibility to manage a relay for a configurable alarm. For each
type of alarm there is a parameter that permits you to choose whether that particular alarm
must be signaled on the the alarm relay. Additional alarms can be addressed at relay.
The position of the digital output dedicated to signal the alarm can be set using the parameter
HA01, if equal to zero the alarm relay will not be utilized.
Using the relative parameter (PH60) it is possible to stabilize the polarity (NO, or NC) of the
digital output of the alarm.
7.4 Alarm history
The controller memorizes in a suitable (non volotile) memory zone organized like the FIFO
queue, the STORICO ALARMI (ALARM HISTORY), or rather it could be a list of the last
alarms verified.
In order to view the alarm history, choose STORICO (HISTORY) from the general Menu, or
from the main page by pressing ESC in order to view the following page:
you may press ENTER on “Mostra STORICO >>” (Show HISTORY>>).
Each element of the history is associated with the following information:
- progressive number for the alarm
- mnemonic code of the alarm (AL01, AL03, …)
- date and hours in which alarm has been verified
The code for every alarm is that which is presented in the alarm table. The storage capacity of
the history is 100 events.
Using the parameter PH18 Cancella lo Storico alarmi (Cancel Alarm History) it is possibile
to eliminate from history all the elements memorized; set the parameter to SI (YES) (1) and
wait a couple of seconds until the re-reading of the default value NO (0).
Note 1. In the case where the memory capacity has reached it’s full limit (i.e. 100 events
recorded) and you wish to memorize/record another event, the first event initially stored in
memory would be overwritten with the new event. The same would follow for other
elements.
Note 2. The history is enabled only if the parameter PG03=1, or if the system clock is
enabled.