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16.4 Alarm or signal events
A distinction must be made between two (for the user manual and three for the technical manual) event types:
•
Warning: this event does not stop anything but, if the condition continues, it could generate an Alarm event. The alarm
cumulative does not need to be set.
•
Notification: event that does not stop anything and does not compromise the unit operation. The alarm cumulative
needs to be set.
•
Alarm: event blocking a device or the whole unit. The alarm cumulative needs to be set.
In case of an event:
•
The red led flashes intermittently in case of a Signal.
•
The red led is fixed in case of an Alarm event.
•
The main mask lights up.
•
The area 2 in the main mask displays the alarm icon (represented by an operating buzzer).
•
The area 3 of the main mask displays an icon reporting the cause of the alarm and, next to it, the type of event
(Signal/Alarm) and the associated event code.
By pressing the [ALARM] key once, the event detail mask appears. This mask provides the following information:
•
event type (Signal/Alarm);
•
event code;
•
reset type (Manual/Automatic);
•
event position (Compressor/Circuit/Unit/System);
•
action type (Compressor/Circuit/Unit/Water circuit/Heater/Humidifier/Specific function block);
•
event description.
The event is reset by pressing the [ALARM] key in the "Event" menu (accessed by pressing the [ALARM] key). If the [ESC]
key is pressed, there is no reset and the event stays active.
For the event type details, refer to the table in the "Event Table" section of the "User interface" chapter.
16.5 Setting delays
Under the "Safety" menu, accessed with the "Factory" password, it is possible to modify the alarm event cut-in times relative
to air flow, exceeded limits, clogged filter signalling and low pressure alarm, compatibly with unit configuration.
16.6 Event signalling relay
The control board provides two relay outputs for signalling events.
The "Alarm Out" menu, which can be accessed by entering the "User" password, it is possible to configure the outputs
differently from the default setting.
More specifically, these masks may:
•
Set the idle status of the output contacts.
•
Set the contact to which the signal is to be addressed.
16.6.1
Setting the output contact logic
In the "Alarm Out" menu, accessible through the "User" password, it is possible to configure the output contact idle status.
The logic may be:
•
Normally open (NO)
•
Normally closed (NC)
Version 38
.
(in this case it is possible to detect also the lack of power feed to the board).
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