Jung Smart Control SC 1000 KNX User Manual

Art. No. SC 1000 KNX
maintain for each fan level change-over. The change-over direction, i.e. whether the level is
being increased or decreased, does not play any role here.
With a change-over via the 1-bit objects, when the fan level is changed by the controller, the
active fan level is first switched off before the new level is switched on. If the fan controller is
working in automatic mode, the settable "Waiting time on level change-over" is maintained on
change-over of the levels. For this short time, the fan level objects all receive the status "0 - Fan
off". A new level is only then switched on when the waiting time has elapsed. Only one fan level
output is ever switched on (changeover principle).
With change-over via the 1-byte object, on changing the fan level, the change-over takes place
directly into the new level, without setting the "OFF" status. If the fan controller is working in
automatic mode, the settable "Waiting time on level change-over" (dwell time) is always taken
into account before change-over of the levels. With rapid level change-over, the change to the
new level only takes place once the waiting time has elapsed.
i The change from level 1 to OFF always takes place immediately, without a waiting time. An
optionally-configured switch-on level is applied directly.
i In manual mode, the "Waiting time on level change-over" is only significant for the switch-
on level (Start-up via level). Here, the fan levels can be switched over without a delay
through manual operation.
i When changing from manual operation to automatic operation, the waiting time is taken
into account in the case of a connected level change.
The fan level active in the current controller operating state is shown in the display of the device
when the "Display status text" parameter of the "Fan controller, internal" channel function is
enabled. In both automatic and manual operation (for a function description, please see the
section "Automatic operation / manual operation"), the display takes place in the following
manner...
Off
Level 1
Level 2
Level 3
Level 4
Level 5
Level 6
Level 7
Level 8
i The fans of a fan coil unit are - as described above - controlled by the fan level objects of
the controller. The electromechanical valves for heating and/or cooling, integrated into the
blower devices, can be controlled via suitable switching actuators using the objects
"Heating message" or "Cooling message" (see page 169).
i The 1-byte object "Ventilation visualisation" can, if necessary, also be evaluated by other
bus devices (e.g. visualisation - panel / PC software). It always transmits the current fan
level as a 1-byte value, either automatically on a change or passively on reading out (see
table: Value explanation for 1-byte fan level object).
i The objects of the fan levels are only updated by the controller. These objects may not be
written to by other bus subscribers. Reading out is possible.
i After a device reset, the fan level objects and the visualisation object are updated and the
status transmitted to the bus.
Automatic operation / manual operation
The fan controller distinguishes between automatic and manual operation. The switchover
between the two operation modes takes place using the 1-bit object "Ventilation, auto/manual"
or through long operation of the display / operating element directly on the device. In manual
operation, the fan control (figure 49) icon is illuminated in the display.
Page 214 of 347
Software "Smart Control 501511"
Functional description

Jung Smart Control SC 1000 KNX Specifications

General

Brand	Jung
Model	Smart Control SC 1000 KNX
Category	Controller
Language	English