Carel DLAQ2DF100, User Manual

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28
ENG
"humiFog direct" +0300073EN rel. 1.4 - 29.03.2022
Main
Secondary
Secondary
IP: 192.168.1.2 IP: 192.168.1.1 IP: 192.168.1.3
Fig. 9.d
Systems set up in this way will be able to cover the humidifi cation
requirement. In this specifi c case, the Main will always be the unit with the
lowest IP address of those connected to the signal/probes. If necessary,
an additional humidifi er (backup) can be installed to cover request in the
event of malfunctions on one of the units in the system.
9.4 Main/Secondary system confi guration
To confi gure the Main/Secondary system, proceed as follows:
1. Connect the probes or the external signal to the unit and complete the
confi guration (control type, type of signal, maximum production …);
2.
Set the IP addresses of the individual units so that they belong to
the same subnetwork (subnet mask); the screen index for this
confi guration is Dh05 (D. Settings – g. Supervision). The IP address is
set on the display on each unit, assigning a diff erent address to each
unit in the same subnetwork. If necessary, contact the local network
administrator. Remember that the default address for each unit is
192.168.0.1, and the default subnet mask is 255.255.255.0. For further
details see paragraph 8.1.1 “IP address and network confi guration”
3. Connect the units making up the Main/Secondary system to the local
Ethernet network via a switch. If using just two units, an RJ45 category 5
cable can be used, connected directly to the Ethernet ports on the two
c.pHC controllers.
4. Confi gure the Main/Secondary system by enabling the units one at a
time (this operation can be performed on the display on any of the units):
4.1 Display screen index Dd01 and then access confi guration mode
by pressing “PRG”.
4.2 Enter the IP address for “Unit 1” and confi rm by pressing “ENTER”.
4.3 Repeat the operations described above (4.1 and 4.2) for all the
other units in the Main/Secondary system.
(The units will join the Main/Secondary system (online) immediately
after being added to the network.)
Note: the Main unit will always (automatically) be the one with the
lowest IP address out of the units connected to the probes or external
signal.
Note: it may take a few seconds (max 10 s) for the Main to start
sending the production request to the Secondary/Secondarys. This is also
true when, automatically, the Main unit is changed (for example, in the
event of malfunctions).
9.4.1 Maximum Main/Secondary system production
In the same way as for the individual unit confi guration, for the Main/
Secondary system the maximum capacity can also be set. To set the
maximum capacity, go to menu Dd03. The “Capacity” parameter identifi es
the maximum production request for the Main/Secondary system, and
can therefore be set by the user.
The “Maximum capacity” parameter (read-only), on the other hand,
indicates the sum of the sizes of each unit added to the system; this value
is therefore the maximum eff ectively available to the Main/Secondary
system. Consequently, “Capacity” will always be ≤ “Maximum capacity”.
In any case, the maximum production can be defi ned for each individual
unit in the system by limiting production from its maximum according
to the size. In this case, “Maximum capacity” will be updated keeping in
consideration these reductions..
9.4.2 Unit production distribution logic in the Main/
Secondary system
The activation logic of the units in the Main/Secondary system can be set,
choosing between “Grouped” or “Balanced”, on screen Dd03.
Grouped distribution
•
the units are activated in series, one after the other, according to the
request.
Example: M/S system comprising two 80 kg/h units, for a maximum total
capacity of 160 kg/h. While the request remains below 50% (80 kg/h)
only one unit will be activated (for example, Unit 1), as soon as the
request exceeds the 50%, the second unit will also be activated (in the
example, Unit 2).
Balanced distribution:
•
the units are activated in parallel at the same time, splitting the total
production request between the number of units in the M/S system.
Example: M/S system comprising two 80 kg/h units, for a maximum
total capacity of 160 kg/h. If the request is 50%, both Unit 1 and Unit 2
will be activated at 50% of production (40 kg/h + 40 kg/h = 80 kg/h). If
the request is 90% (144 kg/h), both Unit 1 and Unit 2 will be activated
at 90% (72 kg/h + 72 kg/h = 144 kg/h).
For Grouped Distribution only, if the request does not require the use
of all the units, the automatic rotation function can ensure that the
individual units total the same number of operating hours. To enable
and confi gure the operating hours for unit rotation, set the “auto-rotation
time” parameter on screen Dd04.
Note: if the “auto-rotation time” parameter is = 0, the auto-rotation
function is disabled.
9.4.3 Disconnect unit from the Main/Secondary
system
To remove a unit from the Main/Secondary system, thus reducing
the number of units available in the system, use the “Disconnect unit”
function on screen Dd06. This can be done on any of the humidifi ers in
the system.
Note: 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 Dd01 (entering its IP). This must be done from the
display on a unit that is already connected to the system.