Temperature Set Point; Sensor Selection; Output Limitations - Produal HLS 44 User Manual

TEMPERATURE SET POINT

The temperature set point can be one of the following:
1. Set with the controller buttons (parameters SPcnt and ±SP °C).
2. Set by external 0...10 V signal (U1mod parameter must be "2").
The external set point 0...10 V signal range is the same as the set point area defined in the menu (parameters SPcnt and ±SP °C).
3. Set via the Modbus.
4. The frost guard set point (FG °C parameter) in the night mode, if the frost guard mode is selected to the night mode (nl OP
parameter is "FG").
The change from night mode to day mode affects also to the temperature set point. With the Sp:nd parameter you can select the set point
either to be the latest user given value or to be read via Modbus. The user given value can be the 0...10 V signal connected to the U1 input or
the value set by the controller buttons.
Modbus
Parameter Description
register
SPcnt 40011 Centre of user set point area
±SP °C 40012 User set point area limits ±°C
SP_Dz 40015 Set point position in dead zone
FG °C 40020 Frost guard thermostat set point
The effective set point after night
SP:nd 21
mode to day mode change
U1mod 40027 U1 mode

SENSOR SELECTION

The temperature information can be imported to the controller by using following methods:
1. Controller inner temperature measurement (EXT.S parameter is "0", "2" or "3")
2. External temperature measurement with NTC10 sensor (EXT.S parameter is "1")
3. External 0...10 V temperature measurement (U1mod parameter is "3")
NOTE: The external 0...10 V temperature transmitter range must be 0...+50 °C.
The set point can be read from one controller and then fed to other controllers in cases where multiple controllers are located in the same
space.
Note the following parameters:
Modbus
Parameter Description
register
External temperature sensor / DI2
EXT.S 40009
contact input
TE ºC 40010 Temperature sensor adjustment
U1mod 40027 U1 mode

OUTPUT LIMITATIONS

It is possible to limit minimum and maximum values of each output separately. The controller does not drive the output outside the given limits.
For example, setting the heating output minimum limit is one way to prevent discomfort of chilled air that flows down the window. The limits
can be over driven only by controlling the outputs directly via the Modbus (Modbus overdrive).
Input DI1
Note the following parameters:
Modbus
Parameters Description
register
Cmin% 40028 Minimum of cooling actuator
Cmax% 40029 Maximum of cooling actuator
Hmin% 40030 Minimum of heating actuator
Hmax% 40031 Maximum of heating actuator
Fmin% 40032 Minimum fan output
Fmax% 40033 Maximum fan output
Vmin% 40034 Minimum of VAV output
Vmax% 40035 Maximum of VAV output
Produal Oy Keltakalliontie 18, 48770 Kotka FINLAND
factory
setting
21.0
±3.0
50
17.0
OFF
0
factory
setting
OFF
0.0
0
U1 S/DI2
factory
setting
0.0
100.0
0.0
100.0
0.0
100.0
0.0
100.0
Tel: +358-5-230 9200 / Fax: +358-5-230 9210
Min Max
18.0 26.0 Centre of user set point area
±0 ±16 The user can adjust the set point within these limits.
0 100
8.0 50.0
OFF = The last value set by the user
OFF On
On = The value from Modbus
0= not in use, 1=CO
2
0 3 with 0...10 V transmitter (NOTE: External sensor is not available if the 0...10 V
transmitter is selected)
Min Max
OFF=not in use, 1= external NTC sensor, 2=DI2 door/window contact (prevents
OFF 3
both heating and cooling), 3=DI2 condensation switch (prevents cooling)
The temperature measurement can be adjusted if needed
NOTE: Eliminate all error factors that can affect to the temperature measurement
-3.0 3.0
before changing this parameter. The parameter cannot be reset to the factory
value.
0= not in use, 1=CO
0 3 measurement with 0...10 V transmitter (NOTE: External sensor is not available if
the 0...10 V transmitter is selected)
Output Y1
x
Min Max
0.0 50.0
50.0 100.0
0.0 50.0
50.0 100.0
0.0 50.0
50.0 100.0
0.0 50.0
50.0 100.0
measurement, 2= external set point, 3= temp. measurement
measurement, 2= external set point, 3= temp.
2
Y2 A1 A2 Y3
x x x x
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Y4
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