Swegon LUNAd Instructions For Use Manual
LUNA d
Instructions for Use
Contents
Introduction ....................................................... 2
1.1 Introduction .......................................................... 2
1.2 Selection of room temperature ............................. 2
1.3 LED status lamp .................................................... 2
System overview and installation ..................... 2
2.1 System overview ................................................... 2
2.2 Terminal functions ................................................ 2
2.3 Invert heating outputs ........................................... 3
2.4 Resetting .............................................................. 3
2.5 Hand-held terminal LUNAb T-CU .......................... 3
Control functions ................................................ 4
3.1 Operating modes .................................................. 4
3.2 Setting room temperatures ................................... 4
3.3 Deadband ............................................................. 4
3.4 Control process ..................................................... 4
3.5 P-function ............................................................. 4
3.6 I-function .............................................................. 4
Inputs and sensors .............................................. 5
4.1.1 Sens or t ype ........................................................ 5
4.1.2 Average value measurement ............................... 5
4.2 Occupancy sensor ................................................. 6
4.2.1 Switch-on delay ................................................. 6
4.2.2 Switch-off delay ................................................. 6
4.2.3 Inverting the occupancy signal ........................... 6
4.3 Overriding the operating mode ............................. 6
4.3.1 Forced output when external contact function
is activated ...................................................................6
4.4 Condensation sensor ............................................ 6
4.4.1 Select effect of output A1 ................................. 6
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Outputs and actuators ....................................... 7
5.1 Actuator ............................................................... 7
5.2 Output signals ...................................................... 7
5.3 Heating, cooling or direct temperature .....................
control of output .................................................. 7
5.4 Limitation of control range .................................... 8
5.5 Temperature limits for
“direct temperature control” (see 5.3)...................... ..8
5.6 Setting the voltage limits for outputs A1 and A2 ... 8
5.7 Inverting the output .............................................. 8
5.8 Periodic valve operation ........................................ 8
Menu functions with hand-held unit ................ 9
6. Hand-held terminal ................................................. 9
6.1.1 Restoring the factory settings ............................. 9
6.1.2 Quick guide: ....................................................... 9
6.2 Hand-held terminal’s different modes ................. 10
6.2.1 Local mode (the settings are made in the tool) . 10
6.2.2 Read mode ...................................................... 10
6.3 LUNAd T-CU buttons .......................................... 10
6.4 Display symbols ...................................................11
6.5 Navigation under the main menu .........................11
6.6 Navigation under the settings menu .....................11
6.7 Change values .....................................................11
6.8 Display overview ................................................ 12
6.9 Week program .................................................... 14
6.10 Log function ..................................................... 14
6.11 Control settings ................................................. 14
6.12 Outputs, settings ............................................... 15
6.13 Outputs, Settings ...............................................17
6.14 Occupancy ........................................................ 18
6.15 Calibration of temperature sensors .................... 19
6.16 Button functions ............................................... 20
6.17 Test Menu ......................................................... 21
6.18 Type designations .............................................. 23
The document was originally written in Swedish.
LUNA d
Introduction
1.1 Introduction
LUNAd is a room controller that gives a stable and
comfortable room temperature through efficient and
accurate control and regulates the different heating and
cooling actuators. The room controller has four outputs
that can individually be adjusted to suit most requirements.
In the supplied version the room controller is set to control
heating and cooling actuators with 24 V AC and 0–10 V DC.
The room controller has a built-in temperature sensor for
detection and setting of the room temperature.
Different types of sensors can be connected to the room
controller.
If you need to change the settings on a room controller
a special hand-held terminal with display (LUNAd T-CU)
is required. The hand-held terminal is then connected
temporarily to the room controller’s 4-way connector. The
connector is located behind the room controller’s cover.
If you wish to install an external sensor in the room or
e.g. in the air duct, the sensor is connected to the screw
terminals in the room controller. The external sensor is then
activated automatically.
Even different types of sensors can be connected to the
controller, for example, occupancy sensor, condensation
sensor, extra temperature sensor or an external contact.
The external sensor’s functions can be set on the menus
on the hand-held terminal with display.
The room controller has three different operating modes
(day, night and save) that can activate different room
temperatures.
1.2 Selection of room temperature
The temperature is set by adjusting by turning the adjuster
knob. The adjuster knob always controls the required
temperature in DAY operating mode, irrespective of whether
any other operating mode is active. It is not possible to
see which operating mode is currently active, but with the
help of the large LED you can see whether the controller is
in heating mode, cooling mode or in standby (dead zone).
The scale of the adjuster knob is not graduated (i.e. no
numbers), so that it is possible to change the adjuster
knob’s temperature range. On delivery the adjust knob’s
range is 19–25 °C with the set point 22 °C in the middle
of the set point scale. Turn the adjuster knob up (clockwise) you increase the temperature and vice versa.
System overview and
installation
2.1 System overview
The room controller can be configured in a variety of
ways. The controller has been especially developed to
facilitate customisation without the need making and
changes to the hardware. The room controller can be
directly connected to numerous different control systems
without the need to make any settings. These are
described in this chapter.
2.2 Terminal functions
The screw terminals on the controller have different markings
and placements. The following figure describes the screw
terminals in a factory set room controller:
1. Output D1 - 24 V Cooling actuator (0 V)
2. Common phase 24V AC for actuator
3. Output D2 - 24 V heating actuator (0 V)
4. Analogue output A1, 0–10 V DC, cooling
1.3 LED status lamp
The room controller is equipped with a LED status lamp
that indicates the current output signal. The LED lamp can
also display other operating modes. In normal mode the
LED lamp displays the following:
1. Blue = cooling requirement
2. Red = heating requirement
3. Flashing blue = condensation (only when the condensation function is active in the room controller and the
operating mode is cooling requirement.
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5. G, phase 24V AC from transformer
6. G0, 0V from transformer
7. Analogue output A2, 0–10 V DC, heating
8. Input for external temp. sensor
9. Input for condensation sensor
2.3 Invert heating outputs
There is a button under the cover on the controller. The
button can be used to invert all the heating outputs.
1. Set the temperature potentiometer to its lowest position.
2.
3.
Press and hold the button for about 12 seconds.
The room controller now inverts all the heating outputs.
Repeat the procedure to remove all the inverted heating
outputs.
2.4 Resetting
There is a button under the cover on the controller.
The button can be used to reset the memory according to
the customer’s configuration.
1. Switch off the power to the controller.
2.
3.
Press and hold the button while you switch on the
controller.
Release the button, the controller now performs a
customer reset.
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2.5 Hand-held terminal LUNAb T-CU
On the room controller’s PCB, behind the cover, is a 4-way
outlet where the hand-held terminal can be connected.
Using this it is possible to configure different settings in
the room controller.
All the settings are described in the manual, chapter 6
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LUNA d
Control functions
The room controller regulates the temperature in the
room with the help of a heating elements and/or chilled
beams. The room controller compares the set temperature
with the current measured room temperature and controls
via its outputs the heating or cooling to the room.
3.1 Operating modes
The room controller has three operating modes each with
its setting values for room temperature and “deadband”.
Other functions can also be connected to the different
operating modes. The operating modes can be controlled
by the following functions in priority order:
1. External contact
2. Occupancy
3.2 Setting room temperatures
The room temperature is adjusted individually for the
three operating modes with the help of the hand-held
terminal LUNAd T-CU.
Using the adjuster knob on the room controller you
can only adjust the desired temperature for DAY mode.
The desired temperature is also called the “set point”.
The measured room temperature is also called the “actual
value”.
3.4 Control process
A slightly simplified control works as follows, step by step:
1. The room controller selects the right temperature and
deadband taking into consideration the enabled
operating mode.
2. The controller calculates the regulated setpoints for
cooling and heating that are equal to the setpoint ±
half the deadband.
3. If the temperature has been higher than the regulated
set point for cooling, the controller is set to cooling
mode and uses the regulated set point for cooling when
regulating.
4. The deviation between the desired temperature and
the measured temperature can be calculated.
5. The capacity value for heating or cooling is calculated.
6. The room controller’s i-function detects if the temperature deviation has not been corrected for a long
period, and if necessary adds an extra “boost” to the
capacity values.
7. The capacity values are converted to output signals and
are sent to the different outputs.
3.5 P-function
The room controller’s method of control is known as “PI”,
which is an abbreviation of proportional and integral. The
proportional function (p-function) means that the controller
calculates a capacity requirement that is proportional to
the temperature deviation.
3.3 Deadband
The room controller has a neutral zone between heating
and cooling control that is called the deadband. This
function is used to prevent both the heating and cooling
outputs from being connected at the same time, and
to save energy. However, the room controller permits
the temperature to deviate a half degree up or down
compared to the set point temperature, before a control
signal is sent to the heating elements or chilled beams.
This applies in DAY operating mode.
In NIGHT mode and SAVE mode the deadband is wider, to
give an economy function when you are not in the room.
When the hand-held terminal is connected it is possible to
adjust the three different deadbands under menu 3.
For DAY operating mode: function “DB.D”
For NIGHT operating mode: function “DB.N”
For SAVE operating mode: function “DB.S”
When high climate comfort is required, the deadband
should be relatively small. However, the deadband should
be wider to save energy.
If the room controller is set to only control heating or
only cooling, then the deadband has not function, and
the room temperature is then controlled directly to the
temperature set for each operating mode.
The P-band can be configured under menu 3.
P-band for heating: function “P.H”
P-band for cooling: function “P.C”
3.6 I-function
The integral function (i-function) means that the room
controller continuously monitors the capacity requirement
that the p-function gives. This helps to smooth out the
deviation more accurately than what the p-function can
sometime achieve, for example, due the heating element
or chilled beam needing a higher control signal to be able
to reach the right temperature in the room.
The I-function can be configured under menu 3.
I-time for heating: function “I.H”
I-time for cooling: function “I.C”
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Inputs and sensors
The room controller has a fixed input for the condensation
sensor and a programmable input for the external sensor.
Depending on the selected function, a sensor can be of
the thermistor type for temperature monitoring (resistive),
condensation detection (resistive) or a contact (0 V or no
contact).
The condensation sensor is connected between terminal
block 9 (input) and terminal block 6 (G0).
An external sensor (resistive or contact) is connected
between terminal block 8 (input) and terminal block 6 (G0).
The configuration tool can be used to select the type of
sensor you wish to connect.
There are four different sensor functions:
Type Input
1. Condensation sensor 9. Condensation
2. External temperature sensor 8. Termistor,NTC,10K
3. Presence sensor 8. Contact:
4. Operating mode contact 8. Contact:
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4.1.1 Senso r t yp e
Two types of sensor can be used for temperature control:
a) in-built sensor
b) external resistive sensor (NTC, 10 kOhm at 25°C)
The built-in sensor in the room controller is always used
automatically by the room controller if no other sensor
is connected to the terminal. When an external, resistive
sensor is connected, the room controller selects this
sensor automatically instead of the built-in sensor.
4.1.2 Average value measurement
In order to connect the average value measurement with
both an external sensor and the built-in sensor in the
room controller, set the following on menu 5 (input):
Function “R1+R2” can be set to 1, 2 or 3
1 = internal sensor only
2 = external sensor only
3 = average value between internal and external sensors
If value 3 is used and if no other sensor is connected to
the terminal, the room controller only reads the internal
sensor.
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LUNA d
4.2 Occupancy sensor
It’s possible to connect an occupancy sensor that enables
the DAY operating mode when occupancy is detected
and which enables NIGHT operating mode when the
occupancy indication ceases. A switching on and off delay
for the DAY operating mode can be set.
The presence sensor can have a contact output (normally
open or normally closed) which is connected between
terminal block 8 (input) and terminal block 6 (G0). G0 is the
signal that the sensor switches on and off to the input.
The presence sensor is activated with the help of the
configuration tool, under menu 6 and the function
“ACTIVE” (enable).
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4.2.1 Switch-on delay
When occupancy has been indicated at some time
both during the first and second half of the delay time,
the DAY operating mode is enabled after the time has
expired. This operating mode remains enabled as long as
there is an occupancy indication.
The switch-on delay for occupancy is selected under
menu 6:
Function “TIME1”: select the delay time for switching on
4.3 Overriding the operating mode
With the 0 V-signal from an external contact you can force
any of the room controller’s four outputs. the contact is
connected between terminal 8 (input signal) and 6 (G0).
Enabling the external contact function is selected under
menu 5 with the help of the hand-held terminal LUNAd
T-CU.
Function “EXT.”:
0 = external contact function disabled
1 = external contact function enabled
4.3.1 Forced output when external contact
function is activated
When the external contact function is enabled it is possible to select which of the outputs is to be forced to open
(0 V to terminal 8).
Activation of forcing output is selected under menu 4,
OUTP”:
First select the output under the function “OPno”:
D1 = 24 V output terminal 1
D2 = 24 V output terminal 3
A1 = 0–10 V output terminal 4
A2 = 0–10 V output terminal 7
4.2.2 Switch-off delay
The switch-off delay delays the disabling of DAY operating
mode when occupancy indication from the sensor ceases. The
time is adjustable between 0 and 990 minutes. The resolution is
10 minutes over 100 minutes.
The switch-off delay for occupancy is selected under menu 6:
Function “TIME0”: select the delay time for switching off
4.2.3 Inverting the occupancy signal
The input function can be inverted to select either an
occupancy sensor that has a normally open or normally
closed contact for occupancy indication.
Inverting the occupancy signal is selected under menu 6:
Function “NO”: 0 = (NC, normally closed) is
opened when occupancy is
detected
1 = (NO, normally open) closes
when occupancy is detected.
Select the function “FORC.”:
0 = forcing of output disabled
1 = forcing of output enabled (when the external
contact is enabled with 0 V to the input on
terminal 8).
4.4 Condensation sensor
It is possible to connect a condensation sensor to input I1
(between terminal 8 and terminal 6) to disable all cooling
outputs and generate an alarm for high condensation of
output A1.
The condensation input is designed for resistive condensation sensors, with resistance values between 50 K and
900 kΩ (for condensation).
The condensation function is set under menu 5 with the
help of the hand-held terminal LUNAd T-CU.
Function “COND” 0 = condensation disabled
1 = condensation enabled
4.4.1 Select effect of output A1
If this function is enabled, the controller activates the 10 V
DC output on Y3 (terminal 4) when condensation occurs.
Function “CALRM” 0 = alarm signal disabled
1 = alarm signal enabled
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LUNA d
Outputs and actuators
The room controller has two 24 V outputs (d1 and d2) and two
analogue 0–10 V outputs (A1 and A2).
Actuators are connected to the following terminal blocks:
• d1: terminal block 1 and 2.
• d2: terminal block 3 and 2.
• A1: terminal block 4 (+), terminal block 6 (G0) and to G
(phase 24 V AC).
• A2: terminal block 7 (+), terminal block 6 (G0) and to
G (phase 24 V AC).
An output can be affected by the following functions (the
uppermost has the highest priority):
1. Output affected by the condensation sensor
2. Output “active” for test activation
3. Output “active” if the function “FORC.”=1 under
menu 4 when input I2 is set to the contact
function “EXT.” = 1.
Under menu 4 (“OUTP”) you can select the type of
regulation outfeed and other settings for each output.
Select the output to be set:
Function “OPno” select d1, d2, A1 or A2.
5.1 Actuator
In this context an actuator is an electro-mechanical unit
that is governed by an electrical signal from the controller
and manoeuvres, e.g. a valve or damper to close.
5.2 Output signals
Different actuators require different output signals from
the room controller. The outputs are therefore adjustable
for different types of actuator.
Pulse regulating (24V or 0-10V)
Normally used to control thermal actuators or for electrical
heating control.
ON/OFF control (24V or 0-10V)
Normally used for the control of 2-position damper
motors or electrical heaters via contactors.
3-p regulating (24V)
Normally used to control increase/decrease actuators.
0-10 V regulation (0-10 V)
Normally used to control 0-10 V actuators.
5.3 Heating, cooling or direct temperature
control of output
You can choose whether an output should control a
heating actuator, a cooling actuator or an actuator for
both heating and cooling.
The setting of functions that follow “OPno” only apply to
the selected output.
When “3P” has been selected for output D1, the settings
refer to both outputs d1 and d2, as this outfeed uses both
the digital outputs.
The room controller outputs a heating and cooling
capacity values between 0–100 % to the outfeed logic.
A capacity value is calculated for each individual output
based on this value (and depending on the following
settings for each output).
A cooling actuator is only activated when the controller
outputs a capacity value for cooling. A heating actuator
is only activated when the controller outputs a capacity
value for heating.
An actuator that is directly controlled by the room
temperature is not affected by the controller’s fed capacity,
but only by the selected limit value for the room temperature.
Go to the function “HC” under menu 4, and set the
following selections for the required output:
COOL: for the regulation of cooling
HEAT: for the regulation of heating
HC: for the regulation of both cooling and heating
dIFF: for direct temperature control
In “HC” mode, 0–5 V is fed with a cooling requirement
100–0 % and 5–10 V for a heating requirement 0–100 %
on outputs A1 and A2.
It is possible to set the controller so that the 0–10 V outfeed to output A1 is available both for heating and cooling
requirement to control of an actuator on a 6-way valve.
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