87
ENG
Main/Secondary system
g0300122EN rel. 1.0 - 01.12.2021
13.1.4
D
isconnecting a unit
To remove a unit from the Main/Secondary system, thus reducing the number of units available in the system, use the “Discon-
nect unit” function on screen Ed06. This can be done on any of the humidifi ers in the system.
Notice: once the unit has been disconnected, this will no longer be visible in the Main/Secondary system, as its IP address will
be removed from the list. If a unit is disconnected erroneously, the system can be restored on screen Ed01 (entering its IP). This
must be done from the display on a unit that is already connected to the system.
13.1.5
D
isplay the system
To display a summary of the Main/Secondary system, go to screen Ed08. From screen Ed07 (E. Settings - d. Network), press
DOWN to access menu Ed08. This has a total of fi ve pages that display all of the units (01, 02, ..., 20), the status of each unit and
current production as a percentage. The following table lists the Main/Secondary network unit status indications:
Symbol
Unit status
Current unit (unit being accessed, display or web server)
Online
Offl
ine
Not confi gured and not included in the Main/Secondary system
Tab. 13.a
The units in the Main/Secondary system can also be selected one by one, displaying maximum production, unit status, operat-
ing hours, current production request and any alarms. To enter this display, from screen Ed08, select the desired unit and press
ENTER, thus accessing screen Ed09. Scroll using the UP/DOWN buttons to display the details of all the units.
13.1.6
S
oftware backup
Main/Secondary mode can also be used to manage the software backup function; if one or more units in the Main/Secondary
system is aff ected by a malfunction, the system automatically restores humidifi cation production by activating the backup units.
The lost production in relation to the request is thus compensated by increasing production on the individual units (where
possible) and/or starting any units in standby. Even if not strictly necessary, to ensure the backup function, the external control
signal must be sent to all the units in the Main/Secondary system; if using probes on the other hand, each unit must be fi tted
with a probe. Only in this way can complete operation be guaranteed in the event of malfunctions.
Notice:
if a unit goes offl
ine due to a malfunction or shutdown, it will temporarily be excluded from the system, and when
next restarted it may take 15 seconds or more to automatically come online again.
13.1.7
S
oftware backup for maintenance
During maintenance or cleaning on a unit in the Main/Secondary system, the backup for maintenance function can be acti-
vated. This allows production to start on a unit in standby, set as backup, before switching off the humidifi er in question for
maintenance. In this way, service continuity can be guaranteed in applications where required humidity control is very precise
and continuous over time.
Procedure:
1. Access screen Ed07 (Network);
2. Press DOWN to display the list of units (Ed08);
3. Scroll to the unit on which maintenance is required (Unit 1, Unit 2, …) and press ENTER to confi rm (screen Ed09).
4. Press PRG to access screen Ed10 and set “Request switch unit off ” = YES. Wait for the display to show the message: “The unit
can now be switched off for maintenance” and then switch the unit off .
Once maintenance has been completed, simply switch the humidifi er on again, and it will automatically come back online.
Notice:
to activate the advanced software backup functions for maintenance, the backup unit must be connected to the
probes or external signal.