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User’s Manual
11
3. SYSTEM OPERATION
3.1. PARAMETERS
OPERATING MODE
Actual
– indicates current AHU mode resulting from HMI setting,
alarms, external control signals etc.
From HMI
– indication of the operating mode from the HMI
From BMS
– indication of the operating mode requested from
BMS link over the Modbus TCP/IP connection
Note!
Control over Modbus TCP/IP is available only in controllers
equipped with expansion board
External ctrl
– indication of the operating mode resulting from
the digital inputs
HMI Basic
- indication of the operating mode resulting from the
HMI Basic UPC device
From Calendar
– indication of the operating mode from the
calendar
HMI ADVANCED
OPERATING MODE
HMI Advanced
Comfort
BMS
Auto
Digital inputs
Auto
HMI Basic
Auto
Calendar
Auto
DI Sum
HMI Wint
Actual season
– selection of the current working mode for
universal heating/cooling coil. If “Winter” selected – the coil
works as a water heater. If “Summer” selected – the coil works
as a water cooler.
Selection HMI
– Winter/Summer
Binary input
– Winter/Summer – universal binary input can be
con
fi
gured as a season selector
From BMS
– indication of the operating mode requested from
BMS link over the Modbus TCP/IP connection
Sum/Wint
– season selection switch – used in combi-coil
applications, where one coil can be switched to heating in winter
(fed from boiler) or to cooling in summer (fed from chiller). The
selected season must correspond to the actual setup of the
hydraulic valves.
Note!
The pipeline has to be switched manually between
supplying from chiller or from boiler. The season selection must
be done according to the actual state of the piping.
Note!
The Summer mode has got lower priority than the Winter
mode, regardless to the control source – HMI or binary input or
BMS command over Modbus TC/IP connection.
HMI ADVANCED
OPERATING MODE
Actual season
Winter
Selection HMI
Winter
Binary input
Summer
From BMS
Winter
3.2. CALENDAR
MAIN PAGE
CHECK FOR ERRORS!
- indicates misordered settings. That
text is displayed in the top line only if errors were found in the
calendar settings.
Calendar mode
– indicates current mode from calendar: Auto..
Off..Low..Econo..Comfort
Temp setpoint
– indicates current temperature setpoint from
calendar
Exceptions
– indicates if the special time zones were activated
or not: Disabled..Enabled
Date
– indicates the current date and weekday, allows for change
Time
– indicates current time, allows for change
HMI ADVANCED
CALENDAR
CHECK FOR ERRORS!
Calendar mode
Standby
Temp.setpoint
21,0°C
Exceptions
Disabled
Date
Mon 28.02.2011
Time
10:09
