Group Title Function
21- Extended Closed
Loop
Parameters used to configure the 3 extended closed loop PI(D) controllers
which for example can be used to control external actuators (e.g. chilled
water valve to maintain supply air temperature in a VAV system) including:
engineering unit for the reference and feedback of each controller (e.g. °C,
°F etc); defining the range of the reference/setpoint for each controller; de-
fining where each of the references/setpoints and feedback signals come
from (e.g. which analog input or the BMS HLI); programming of the setpoint
and manual or auto-tuning of the each of the PI(D) controllers.
22- Application Func-
tions
Parameters used to monitor, protect and control pumps, fans and compres-
sors including: no flow detection and protection of pumps (including auto-
setup of this function); dry pump protection; end of curve detection and pro-
tection of pumps; sleep mode (especially useful for cooling tower and boos-
ter pump sets); broken belt detection (typically used for fan applications to
detect no air flow instead of using a Δp switch installed across the fan); short
cycle protection of compressors and pump flow compensation of setpoint
(especially useful for secondary chilled water pump applications where the
Δp sensor has been installed close to the pump and not acoss the furthest
most significant load(s) in the system; using this function can compensate
for the sensor installation and help to realise the maximum energy savings).
23- Time Based Func-
tions
Time based parameters including: those used to initiate daily or weekly ac-
tions based on the built in real time clock (e.g. change of setpoint for night
set back mode or start/stop of the pump/fan/compressor start/stop of a ex-
ternal equipment); preventative maintenance functions which can be based
on running or operating hour time intervals or on specific dates and times;
energy log (especially useful in retrofit applications or where information of
the actual historical load (kW) on the pump/fan/compressor is of interest);
trending (especially useful in retrofit or other applications where there is an
interest to log operating power, current, frequency or speed of the pump/
fan/compressor for analysis and a payback counter.
24- Application Func-
tions 2
Parameters used to set-up Fire Mode and/or to control a bypass contactor/
starter if designed into the system.
25- Cascade Controller Parameters used to configure and monitor the built in pump cascade con-
troller (typically used for pump booster sets).
Table 6. 4: Parameter Groups
Parameter descriptions and selections are displayed on the graphic keypad. (See relevant section for details.)
Access the parameters by pressing the [Quick Menu] or [Main Menu] button on the control panel. The Quick
Menu is used primarily for commissioning the unit at start-up by providing the parameters necessary to start
operation. The Main Menu provides access to all parameters for detailed application programming.
All digital input/output and analog input/output terminals are multifunctional. All terminals have factory default
functions suitable for the majority of HVAC applications but if other special functions are required, they must
be programd as explained in parameter group 5 or 6.
How to program the Frequency Converter
BAS-SVX19C-EN 6-59
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