Master/Slave System Confi Guration; E. Settings - H. Supervision - Carel heaterSteam User Manual

main
probe
or external
Slave
signal
Master
IP: 192.168.1.2
IP: 192.168.1.1
main probe
or external signal
main probe
or external signal
Systems set up in this way will be able to cover the steam request. In this
specifi c case, the Master 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.
8.4 Master/Slave system confi guration
To confi gure the Master/Slave 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 Eh02
(E. Settings – h. 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.
3.
Connect the units making up the Master/Slave 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 Master/Slave 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 Ed01 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 Master/Slave system.
(The unit will join the Master/Slave system (online) immediately after
being added to the network.)
Note: the Master 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 Master to start
sending the production request to the Slave/Slaves. This is also true
when, automatically, the Master unit is changed (for example, in the
event of malfunctions).
The evolved Master/Slave system with Ethernet connection is managed
by the heaterSteam Titanium version by a cascaded connection between
a series of units; for this heaterSteam version, the connection is made
using terminals M8.1 and M8.2 that provide the production request (0
to 10 V).
See paragraph 4.10 "Production request analogue output for connection".
Slave
IP: 192.168.1.3
Fig. 8.e
8.4.1 Maximum Master/Slave system production
In the same way as for the individual unit confi guration, for the Master/
Slave system the maximum capacity can also be set. To set the maximum
capacity, go to menu Ed07 (E. Settings – d. Network), press
the UP/DOWN buttons until reaching menu Ed03.
The "Capacity" parameter identifi es the maximum production request for
the Master/Slave system, and can therefore by 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 Master/Slave
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.
8.4.2 Unit rotation logic in the Master/Slave system
The activation logic of the units in the Master/Slave system can be set,
choosing between "Grouped" or "Balanced", on screens Ed03 and Ed04.
On screen Ed07 (E. Settings – d. Network), press
DOWN buttons until reaching menu Ed03 or Ed04 (screen Ed04 is only
shown if rotation is enabled on screen Ed03).
Grouped rotation logic:
•
the units are activated in series, one after the other, according to steam
request.
Example: M/S system comprising two 80 kg/h (176lbs/hr) units, for a
maximum total capacity of 160 kg/h (353lbs/hr). While steam 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 rotation logic:
•
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 (176lbs/hr) units, for
a maximum total capacity of 160 kg/h (353lbs/hr). If the request is
50%, the rotation function activates both Unit 1 and Unit 2 at 50% of
production (40 kg/h + 40 kg/h = 80 kg/h). If the request is 90% (144
kg/h) the rotation function activates both Unit 1 and Unit 2 at 90% (72
kg/h + 72 kg/h = 144 kg/h).
If the steam request does not require the use of all the units, the rotation
function can take into account the units with the least operating hours
(auto-rotation function) so as to ensure 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 Ed04.
Note: if the "auto-rotation time" parameter is = 0, the auto-rotation
function is disabled.
8.4.3 Advanced preheating function for the Master/
Slave system
Activating advanced preheating on the Master/Slave system allows
the Slave unit or units currently in standby to be automatically pre-
activated. When the request reaches 90% of production on the units that
are currently operation, preheating is activated on the remaining units.
Activation of advanced preheating also depends on the type of rotation
selected.
Example: M/S system comprising two 80 kg/h (176lbs/hr) units, for a
maximum total capacity of 160 kg/h (353lbs/hr). While steam request
remains below 72 kg/h (90% of 80 kg/h = 72 kg/h) only one unit will
be active (for example, Unit 1). When the request exceeds 72 kg/h,
preheating will be activated on Unit 2 so as to have a faster response
when the request exceeds 80 kg/h. The advanced preheating function
for the M/S system is enabled/disabled on screen Ed04.
Note: the automatic preheating function for the M/S system only
applies to "Grouped" rotation.
43 "heaterSteam" +0300080EN - rel. 1.0 - 27.04.2016
ENG
and use
and use the UP/