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INTEGRAL RSA
Application controllers
Note:
Brief description
The RSA controllers are microprocessor-based DDC controllers comprising a
base unit and a plug-in application module.
Each plug-in application module contains an EEPROM preprogrammed with
a given application chosen from a wide range of heating, ventilation and
air conditioning applications. The application modules are held in application
libraries in the various national and regional Staefa offices. They can be se-
lected according to the system and plugged into the base unit. The engineer-
ing required is thus minimal, and since suitable default settings are provided
for setpoints, parameters etc., commissioning is extremely easy.
If no suitable standard solution is available, a program for the specific appli-
cation can be designed in SAPIM and downloaded to the module from a PC.
At the same time, the application modules are freely programmable, so
that if no suitable standard solution is available, a program can be
designed in SAPIM and downloaded to the module from a PC.
The EEPROM also holds the NBRN-modifiable setpoints, parameters and
time programmes but not the setpoints from the local operator panel of
the NRK16-B/A.
Construction
Essentially, the base unit consists of a metal housing and printed circuit
board.
The housing comprises a base and a cover, and accommodates the PCB and
two-part plug-in connection terminals. These terminals are accessible at the
top and bottom of the housing, so that peripheral devices can be connected
directly without removing the cover plate.
Additional terminals and a 10-pin ribbon cable connector are provided for
the power supply, operator terminal and RS bus communication (see
page 5, Connection diagram and suitable devices).
The cover plate incorporates an aperture for the plug-in application mod-
ule, a rotary switch for setting the RS bus address and three LEDs:
– Green (power): Power supply / basic test (on = OK)
– Yellow (Tx RS):
Normal operation / RS bus communication
(flashing = OK)
– Red (error)
Error
The NRK16-B/A incorporates additional elements for control and display
(see page 8).
K21-04.10
en - 06.2001
92.00157
3/8
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