Robur Roburbox100, Installation And Use Manual

Page: 15 / 84

GENERAL AND TECHNICAL FEATURES section
Ed. 06/2014 – FW version 1.002 9
Short description of device operation
Connect appliance to a 24 Vac electric power supply line (paragraph 2.2 on page 25.
When turned on, the appliance performs a series of internal tests to check proper software
and hardware operation, checks any set-up errors on operating parameters, shows an
identification string (rb10, name of electric board) and, finally, keeps the leftmost decimal
point flashing only.
This interface is used to collect requests (max 4 request for each RB100) for cold, hot and
DHW services coming from external controllers where analogue and/or digital output
signals are available; after collection, these requests are sent to DDCs which supply the
relevant services.
Besides, interface has an auxiliary mode to connect any DDC-controlled valve, to
separate or include the separable DHW group on the basic plant or switch a plant
operating mode from hot to cold and vice versa.
Finally, there are digital outputs to signal any non-availability of request services (e.g. cold
service not available as plant is switched on heating) and a general alarm output shared
by all services, which always accompanies the non-available service and signal any other
anomaly (e.g. valve anomaly).
RB100 interface device requires at least a Direct Digital Controller (DDC, see Figure 2).
The switching between RB100 and DCC is performed by CAN network, (the same used
for communication between DCC and machine).
In this case, for DDC use and configuration/programming instructions, refer to two
booklets: DDC Installation Manual (D-LBR 273) and DDC Use and Programming
Manual (D-LBR 249).
DDC configuration/programming operations must be performed by Robur
Authorised Technical Assistance Centres (TAC) during first turning-on procedures
and following manufacturer’s instructions.
Figure 2
Direct Digital Controller (DDC, available as accessory)
DIRECT
DIGITAL
CONTROLLER
(DDC)