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99B138120x-mub-en | 2014/11 | V05
EN
Circulation / diverting valve in the return for cascade operation mode:
The circulation pump with PWM control has to be mounted on site before
the two modules in the shared circulation line. It can be controlled via the
PWM signal of the master controller, if appropriate settings in the menu
F:02 have been made. That is why this function is blocked for the slave
controller. Only use original accessories.
The diverting valve has to be connected in the shared return of the
stations. It is controlled by the master controller. That is why this function
is blocked for the slave controller.
Thermal disinfection for cascade operation mode:
In cascade operation mode, the function "thermal disinfection" only has
to be set for the maser controller. That is why this function is blocked
for the slave controller. The master transmits the increased warm water
nominal temperature via the cascade bus to the slave controller. During
disinfection both modules are activated by the master controller and the
circulation pump runs at 100% speed.
Alarm indication for cascade operation mode:
In cascade operation mode every module indicates a separate alarm via
the relay Rs.
Bus function for cascade operation mode:
In cascade operation mode every module indicates a separate data
string.
Heat quantity measurement for cascade operation mode:
In cascade operation mode every module counts a separate heat quantity.
All further functions, as e.g. the comfort function have to be activated or
deactivated separately in order to guarantee a correct functionning.
9.2.10 Bus
With the function "bus" a bus system can be selected. Different adapters
can be connected to the controller via its TTL interface:
•
Circuit board for the communication on different protocols
•
Connecting cable for PC software in case of servicing
Note
In the first 30 seconds after the activation of the controller there is
no data exchange yet.
The following options are available:
Display
kind of communication
bus: -
no communication
bus: 1
eBUS
bus: 2
data string to the PAW Modbus Server (every 10 seconds)
bus: 3
in case of servicing communication with the service software
