Remak VCS Installation And Operating Instructions Manual page 23

Control (HMI-SG)
Local HMI-SG controller
The HMI-SG (Human Machine Inter- The HMI-SG (Human Machine Inter-
face) enables full control and moni- face) enables full control and moni-
toring of the equipment's operating toring of the equipment's operating
parameters. The air-handling unit parameters. The air-handling unit
parameters can be accessed through parameters can be accessed through
the List of Data Points, which is pro- the List of Data Points, which is pro-
tected by the password applicable tected by the password applicable
for the corresponding access level. for the corresponding access level.
HMI-SG controller enables the following items to be
reviewed:
n Room (outlet) temperature
n Current air-conditioning process (cooling, heat recovery,
mixing or heating)
n
Temperature mode (Economy, Comfort)
n Current system time and day of the week
n Fan output stage
Other information is available via the List of Data Points, see
the chapter Data Point List Access and Editing. Th e HMI-SG
POL822.60/STD hand controller is used to control air-
handling devices. Th is controller can be connected to the POL
4xx or POL 6xx master controller (respective to the terminals
ready in the control unit).
Operating conditions
Degree of protection: IP 30 Permissible ambient temperature:
5 °C to 40 °C Relative humidity < 85 %
Warning:
To avoid unintentional unit start-up, the master switch must be
switched off and locked when repairing the VCS unit.
Wiring and Installation
Th e HMI-SG controller is connected to the Process Bus (KNX).
A twin cable or a twisted pair of leads can be used to perform
the connection to the KNX bus.
Figure 14 – Connection to the control unit
Master
controller
Process Bus
HMI-SG 1 HMI-SG 2
Th e controller can be installed using a wall wiring box or
embedded in plaster. Th e maximum distance between the
control unit and room controller is up to 700 m.
HMI-SG controllers are connected to the master controller in
series and wiring is always performed to one point.
Note: Th e Installation Instructions are part of the HMI-SG
controller delivery.
Control units VCS
Figure 18 – Wiring box installation
Function Buttons
Th e room unit consists of the face plate and back cover,
which can be separated. Th ere are 8 function buttons on the
controller's face plate.
Figure 19 – HMI-SG controller
Controller Description
Table 3 – Function Buttons description
Button
Icon Name
number
T1 Power
T2 Presence not used
T3 Program
T4 Minus
T5 Plus
T6 OK
T7 Fan
T8 Mode
Function description
Air-handling unit start or stop
Th e time schedule button: by
holding this button, you can
set the date; by pressing this
button, you can set the desired
temperature mode timing and
required fan output stage
Temperature correction –
pre-set depending on the
selected temperature mode
Temperature correction –
pre-set depending on the
selected temperature mode
Confirmation of the date or time
schedule settings
Fan output (speed) stage setting;
each button cyclically increases
the setting by one stage. Th e cur-
rent output stage is displayed on
the display
Temperature mode selection
(Auto, Comfort and Economy). By
pressing the button, the modes
can be cycled. Th e currently
selected temperature mode is
indicated by an icon on the display
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