Theben FCA 2 User manual

Fan Coil Actuator FCA 2
Updated: Feb-16 (subject to changes) Page 1of 89
Fan Coil Actuator FCA 2
FCA 2 4920210

Fan Coil Actuator FCA 2
Updated: Feb-16 (subject to changes) Page 2of 89
Contents
1Function description.................................................................................................................4
1.1 Operation and display.......................................................................................................5
1.2 Advantages of the FCA 2.................................................................................................6
1.2.1 Special features ............................................................................................................6
2Technical Data .........................................................................................................................7
3The application program "FCA 2 Fan Coil Actuator 0-10V"..................................................8
3.1 Selection in the product database.....................................................................................8
3.2 Parameter pages................................................................................................................9
3.3 Communication objects..................................................................................................10
3.3.1 Characteristics of objects ...........................................................................................10
3.3.2 Description of objects.................................................................................................13
3.4 Parameters......................................................................................................................25
3.4.1 Parameter page General.............................................................................................25
3.4.2 Parameter page Fan....................................................................................................27
3.4.3 Parameter page Heating valve....................................................................................33
3.4.4 Parameter page Cooling valve....................................................................................35
3.4.5 Parameter page "Heating/cooling valve" (only with 2-pipe system).........................36
3.4.6 Parameter page Additional relay................................................................................37
3.4.7 Parameter page E1......................................................................................................38
3.4.8 Parameter page E2......................................................................................................39
3.4.9 Parameter page Condensation monitoring.................................................................39
3.4.10 Parameter page Setpoint adjustment ......................................................................40
3.4.11 Parameter page Setpoints (internal controller).......................................................42
3.4.12 Parameter page Regulation (internal controller)....................................................44
3.4.13 Parameter page Operating mode and operation (internal controller)....................48
3.4.14 Parameter page Filter monitoring..........................................................................50
3.4.15 Parameter page Actuating value loss......................................................................51
4Start-up...................................................................................................................................52
4.1 Test mode.......................................................................................................................52
4.2 Device LEDs in automatic mode ...................................................................................56
5Typical applications ...............................................................................................................57
5.1 Base configuration (4-pipe system): Heating and cooling with fan coil with external
controller ....................................................................................................................................57
5.1.1 Devices:......................................................................................................................57
5.1.2 Overview....................................................................................................................57
5.1.3 Objects and links........................................................................................................57
5.1.4 Important parameter settings......................................................................................58
5.2 Base configuration (2-pipe system): Heating and cooling with fan coil with external
controller ....................................................................................................................................59
5.2.1 Devices:......................................................................................................................59
5.2.2 Overview....................................................................................................................59
5.2.3 Objects and links........................................................................................................59
5.2.4 Important parameter settings......................................................................................60
5.3 4-pipe system: Heating and cooling with fan coil, external controller and dew point
alarm 61
5.3.1 Devices.......................................................................................................................61
5.3.2 Overview....................................................................................................................61
5.3.3 Objects and links........................................................................................................62

Fan Coil Actuator FCA 2
Updated: Feb-16 (subject to changes) Page 3of 89
5.3.4 Important parameter settings......................................................................................63
5.4 Typical application (4-pipe system):..............................................................................64
5.4.1 Task:...........................................................................................................................64
5.4.2 Devices:......................................................................................................................64
5.4.3 Overview....................................................................................................................64
5.4.4 Implementation: .........................................................................................................65
Objects and links....................................................................................................................66
5.4.5 Important parameter settings......................................................................................67
6Appendix................................................................................................................................69
6.1 Monitoring of actuating value........................................................................................69
6.1.1 Application.................................................................................................................69
6.1.2 Principle .....................................................................................................................69
6.1.3 In practice...................................................................................................................69
6.2 Setting the valve characteristic.......................................................................................70
6.3 Setpoint offset ................................................................................................................71
6.4 Setpoint adjustment........................................................................................................71
6.4.1 Use with internal controller........................................................................................71
6.4.2 Use with external controller.......................................................................................71
6.4.3 Format of setpoint correction: Relative......................................................................72
6.4.4 Format of setpoint correction: Absolute.....................................................................74
6.5 Frost protection (or heat protection) via window contact..............................................76
6.5.1 with external controller ..............................................................................................76
6.5.2 with internal controller...............................................................................................76
6.6 Dead zone.......................................................................................................................76
6.7 Determining the current operating mode .......................................................................77
6.7.1 New operating modes.................................................................................................77
6.7.2 Old operating modes ..................................................................................................78
6.7.3 Determination of the setpoint.....................................................................................79
6.7.4 Heating and cooling in the 2-pipe system..................................................................81
6.7.5 Heating and cooling in the 4-pipe system..................................................................81
6.8 Fan control......................................................................................................................82
6.8.1 Priorities.....................................................................................................................82
6.8.2 Fan forced mode with RAM 713 Fan Coil.................................................................83
6.8.3 Time between heating and cooling and overrun phase..............................................85
6.8.4 Hysteresis...................................................................................................................86
6.9 Temperature control.......................................................................................................87
6.9.1 Introduction................................................................................................................87
6.9.2 Response of the P controller.......................................................................................88
6.9.3 Response of the PI controller .....................................................................................89

Fan Coil Actuator FCA 2
Updated: Feb-16 (subject to changes) Page 4of 89
1 Function description
•Fan coil actuator
•For controlling fan coils
•For 2- and 4-pipe systems
•For up to three fan stages
•Fans optionally also with 0-10 V output
•For proportional valves 0-10 V
•Additional relay for electrical heater or cooler bank
•Floating input for window contacts or temperature sensor
•Floating input condensation monitoring
•Display of operation status via 9 LEDs
•Manual operation on device (fan stages, switching between heating and cooling)
•Adjustment of setpoint for cooling in relation to external temperature
•Floating switching contact for either cooler or heater bank
•With emergency program

Fan Coil Actuator FCA 2
Updated: Feb-16 (subject to changes) Page 5of 89
1.1 Operation and display
FCA 2 is fitted with 9 LEDs and 2 push buttons.
•3 red LEDs for displaying fan stage/fan speed (see figure 1)
•1 red LED for heating mode
•1 blue LED for cooling mode
•1 red LED for the additional relay (C1)
•2 red LEDs for inputs 1 and 2 (E1, E2)
•1 red LED for test mode
•1 push button for fan stages/fan speed
•1 push button for heating/cooling mode /
Figure 1: LEDs for displaying fan stages or fan speed
S1
S2
S3
Fan stages (standard fan, 1-3 stages)
1-32 %
33-65 %
66-100 %
Fan speed (0-10 V control)
By using the manual button, the fan stages can be switched one after another.
•Standard fan control: Off stage 1 stage 2 stage 3 Off stage 1 etc.
•0-10 V fan control: Off 33% 66% 100% Off 33% etc.

Fan Coil Actuator FCA 2
Updated: Feb-16 (subject to changes) Page 6of 89
1.2 Advantages of the FCA 2
•Operating voltage 100-240 V 50/60 Hz.
•Suitable for 0-10 V valves.
•Optional internal or external temperature controller.
•Can be used in 2- and 4-pipe systems.
•Also suitable for 0-10 V fans.
•Easy start-up via 2 push buttons for fan and heating/cooling mode.
•Additional relay for heating/cooling can also be used as a switch output.
•Change of operating mode by means of presence and window objects.
•Adjustable direction of action of inputs.
•Heating/cooling object addressable as per DPT 1.100 or inverted.
1.2.1 Special features
•Control via external actuating value or with integrated room thermostat.
•Additional relay C1 can also be controlled as switching actuator channel via the bus
•Setpoint in cooling mode can be adjusted in relation to the outdoor temperature
•E1 and E2 can be used as binary inputs if required.

Fan Coil Actuator FCA 2
Updated: Feb-16 (subject to changes) Page 7of 89
2 Technical Data
Power supply via mains
230 +/-10 VAC 50 Hz
Operating voltage KNX
Bus voltage, ≤ 8 mA
Operating voltage
100 – 240 V AC
Frequency
50 – 60 Hz
Width
4 TE
Type of installation
DIN-rail
Type of contact
NO contact
Switching capacity, additional relay
16 A
Switching capacity, ventilator relay
6 A
Ambient temperature
-5 °C … +45 °C
Protection rating
IP 20
Protection class
II in accordance with EN 60 730-1

Fan Coil Actuator FCA 2
Updated: Feb-16 (subject to changes) Page 8of 89
3 The application program "FCA 2 Fan Coil
Actuator 0-10V"
3.1 Selection in the product database
Manufacturer
Theben AG
Product family
Heating, ventilation, air conditioning
Product type
Fan coil actuators
Program name
FCA 2 Fan Coil Actuator 0-10V
The ETS database can be found on our website: www.theben.de/en/downloads_en
Table 1
Number of communication objects
33
Number of group addresses
64
Number of associations
64

Fan Coil Actuator FCA 2
Updated: Feb-16 (subject to changes) Page 9of 89
3.2 Parameter pages
Table 2
Function
Description
General
Supported functions, operation, filter change
Fan
Number of fan stages, switch-on thresholds, etc.
Heating valve
Factory settings for heating valve
Cooling valve
Factory settings for cooling valve
Heating/cooling valve
Factory valve settings for 2-pipe systems
Additional relay
Use of additional relay C1
E1.. E2
Settings for inputs E1 and E2
Condensation monitoring
Reaction to condensate and signal source
Setpoint adjustment
Setpoint offset dependent on outdoor temperature
Setpoints
Setpoint after download, values for night, frost mode etc.
Control
Control parameter settings for the internal temperature controller
Operating mode and operation
Factory settings for changing operating modes
Filter monitoring
Basic settings for filter change
Actuating value loss
Monitoring of the actuating value with external controller

Fan Coil Actuator FCA 2
Updated: Feb-16 (subject to changes) Page 10 of 89
3.3 Communication objects
3.3.1 Characteristics of objects
FCA2 features 33 communication objects.
Some objects can assume various functions, depending on their configuration.
Table 3
No. Function Object name
Type
DPT
C R W T
0
Heating actuating value
Receive
1 byte
5,001
C
R
W
-
Heating/cooling actuating
value
Receive C R W -
Actuating value for fan
Receive
C
R
W
-
Cooling actuating value
Receive
C
R
W
-
Heating/cooling actuating
value
Send C R - T
Heating actuating value
Send
C
R
-
T
Cooling actuating value
Send
C
R
-
T
1
Enable cooling 1 = Enable cooling
1 bit
1,003
C R W -
Disable heating 1 = Heating disabled
1 bit
1,001
C R W -
Cooling actuating value Receive
1 byte
5,001
C R W -
Heating / cooling Heating = 0, Cooling = 1
1 bit
1,001
C R W -
Heating / cooling Heating = 1, Cooling = 0
1 bit
1,100
C R W -
Cooling actuating value Send
1 byte
5,001
C R - T
2 Heating status Report
1 bit
1,001
C R - T
3 Cooling status Report
1 bit
1,001
C R - T
4 Fan stage Report
1 byte
5,010
C R - T
Fan speed Report
1 byte
5,001
C R - T
5 Additional relay status Report
1 bit
1,001
C R - T
Additional relay Switching
1 bit
1,001
C R W -
6 Block additional ventilation 1 = Block
1 bit
1,001
C R W -
7 Fan block 1 = Block
1 bit
1,001
C R W -

Fan Coil Actuator FCA 2
Updated: Feb-16 (subject to changes) Page 11 of 89
Continuation:
No.
Function
Object name
Type
C
R
W
T
8
Fan stage in forced
operation
Fan control with % value
1 byte
5,001
C R W -
Fan stage in forced
operation
Fan control via level
1 byte
5,010
C R W -
9
Limitation of fan stage in % 0=Fan OFF 1..100%=max.
1 byte
5,001
C R W -
Limitation of fan stage in %
0=Fan OFF
1..100%=max.stage
1 byte
5,001
C R W -
Limitation of fan stage (1-2-
3)
0=Fan OFF
1-3=max.stage
1 byte
5,010
C R W -
10 Fan off Report
1 bit
1,001
C R - T
11 Fan stage 1 Report
1 bit
1,001
C R - T
12 Fan stage 2 Report
1 bit
1,001
C R - T
13 Fan stage 3 Report
1 bit
1,001
C R - T
14
Status of window contact at
E1
Report
1 bit
1,019
C R - T
Actual value at E1 Report
2 byte
9,001
C R - T
15 Fan auto/forced mode
Receive: Auto = 1, Forced =
0
1 bit
1,001 C R W
-
Fan Forced/Auto
Receive: Forced = 1, Auto =
0
16
Status of condensation
monitoring
Input 1 bit
1,001
C R W -
Status of condensation
monitoring
Report C R - T
Status of window contact at
E2
Report
1 bit
1,019
C R - T
17 Dew point alarm Input
1 bit
1,001
C R W -
18 Outdoor temperature Input
2 byte
9,001
C R W -
19 Adjust setpoint Delta in K
2 byte
9,002
C R - T
Adjust setpoint Value in °C
2 byte
9,001
C R - T
20
Actuating value loss
1 = Actuating value loss
1 bit
1,001
C R - T
Sensor failure
Sensor failure

Fan Coil Actuator FCA 2
Updated: Feb-16 (subject to changes) Page 12 of 89
Continuation:
No.
Function
Object name
Type
C
R
W
T
21 Night mode <-> Standby 1 = Night mode
1 bit
1,001
C R W -
Operating mode preset Operating mode preset
1 byte
20,102
C R W -
22 Comfort 1 = Comfort mode
1 bit
1,001
C R W -
Presence Input for presence signal
1 bit
1,018
C R W -
23 Frost protection 1 = Frost protection
1 bit
1,001
C R W -
Window Input for window contact
1 bit
1,019
C R W -
24 Current operating mode Send
1 byte
20,102
C R - T
25 Manual offset Receive
2 byte
9,002
C R W -
26 Base setpoint Receive
2 byte
9,001
C R W -
27 Current setpoint Send
2 byte
9,001
C R - T
28 Heating / cooling Heating = 0, Cooling = 1
1 bit
1,001
C R W -
Heating / cooling Heating = 1, Cooling = 0
1 bit
1,100
C R W -
29
No energy medium
1 = Wrong energy medium
1 bit
1,001 C R - T
Heating mode, but heating
blocked
1 = Heating blocked
Cooling mode, but cooling
blocked
1 = Cooling blocked
30
Fan duty time since last filter
change
Time in hours
2 byte
7,007
C R - T
31 Change filter* 1 = Change, 0 = Reset
1 bit
1,001
C R W T
32 Activate test mode Report
1 bit
1,003
C R - T
* Also serves as reset input for filter change status.
Key
Flags
Name
Meaning
C
Communication
Object can communicate
R
Read
Object status can be queried
W
Write
Object can receive
T
Transmit
Object can send

Fan Coil Actuator FCA 2
Updated: Feb-16 (subject to changes) Page 13 of 89
3.3.2 Description of objects
•Object 0 "Actuating value for fan" / "Actuating value heating/cooling" transmit or
receive.
The function of the object is connected with the parameters "Supported function" and
"Type of controller used" on the "General" parameter page.
Table 4.
Supported
function
Kind of controller used and Function of object Installation type
internal controller external controller
Heating
Transmits the current
actuating value of heating
valve
Receives the actuating
value for the heating valve
4-pipe system or
heating only
system
Cooling
Transmits the current
actuating value of cooling
valve
Receives the actuating
value for the cooling valve
cooling only
system
Heating and
cooling
Transmits the current
actuating value of the
common heating and
cooling valve
Receives the actuating
value for the common
heating and cooling valve
2-pipe system
Fan
receives the actuating value for fan control
Ventilation

Fan Coil Actuator FCA 2
Updated: Feb-16 (subject to changes) Page 14 of 89
•Object 1 "Actuating value cooling", "Heating/cooling", "Block heating", "Enable
cooling"
The function of the object is connected with the parameters "Supported function" and
"System type" on the "General" parameter page.
Table 5
Supported
function Installation type
2-pipe system 4-pipe system
Heating and
cooling
Change over between
heating and cooling mode.
The direction of action is defined by
parameter Format object
heating/cooling
(see General parameter page).
DPT 100
Inverted
Heating = 1
Heating = 0
Cooling= 0
Cooling= 1
With external controller: Receive
cooling actuating value.
With internal controller: Send
cooling actuating value.
Heating
Block heating:
1 on this object blocks the heating function.
The block can be cleared with a 0.
After reset, object value = 0, i.e. heating permitted
Cooling
Enable cooling:
1 on this object permits cooling function.
0 on this object blocks the cooling function.
After reset, object value = 1, i.e. cooling permitted
•Object 2 "heating status"
Sends the current heating status:
1 = Actuating value heating is greater than 0 %, heating is switched on.
0 = Actuating value heating is 0 %, heating is currently switched off
•Object 3 "Cooling status"
Sends the current cooling status:
1 = Actuating value cooling is greater than 0 %, cooling is switched on.
0 = Actuating value cooling is 0 %, cooling is currently switched off

Fan Coil Actuator FCA 2
Updated: Feb-16 (subject to changes) Page 15 of 89
•Object 4 „fan stage“, „fan speed“
Reports the current fan stage or fan speed.
Depending on the configured fan controller (General parameter page), the object either sends the
current stage (0..3) or the speed in percent.
Table 6: Fan controller.
Standard (1-3 stages)
0-10 V
2 formats can be selected:
- 1 byte number between 0 and 3.
- Percentage value
See parameter Format and cycle time fan stage
object
The fan speed is sent as a percentage
value.
•Object 5 "Additional relay", "additional relay status"
The function of this object is dependent on the "Switching on additional relay" parameter on the
"Additional relay" parameter page.
Using the "via object setting, the additional relay can be controlled externally via the bus with
object 5.
With all other settings, object 5 reports the current status of the additional relay.
•Object 6 "Blocking additional ventilation"
Block object for the "additional ventilation" function if it is activated.
1 = Block
0 = Cancel block
•Object 7 "Fan block"
Block object for fan control.
1 = Block fan (fan off)
0 = Automatic operation

Fan Coil Actuator FCA 2
Updated: Feb-16 (subject to changes) Page 16 of 89
•Object 8 "Fan stage in forced operation"
Via this object, the desired fan stage in forced operation is either defined as a percentage value
between 0 % and 100 % or as a stage (1-3).
See parameter Format of forced operation and limitation on Fan parameter page.
With 0-10 V fan control, only the percentage value format is permitted.
The specification fan stage can either be made with the button at the room thermostat
RAM 713 FC or via a KNX sensor (e.g. push button), which is configured for this purpose.
Forced operation is activated by Object 15.
Example of percentage value:
Recommended forced telegrams for the following settings on the "Fan" parameter page:
Switch-on threshold for fan stage 1 = 10 %
Switch-on threshold for fan stage 2 = 40 %
Switch-on threshold for fan stage 3 = 70 %
Forced-operation telegram
Forced-operation telegram
Forced-operation telegram
25 %
55 %
85 %
STAGE 1
STAGE 2
STAGE 3
10 %
40 %
70 %
100 %
Switch-on thresholds
Figure 2

Fan Coil Actuator FCA 2
Updated: Feb-16 (subject to changes) Page 17 of 89
•Object 9 "Limitation of fan stage in %", "Limitation of fan stage (1-2-3)"
This object can be used to set the maximum permitted actuating value and the associated
maximum fan stage, either as a percentage value or as stage (1-3).1
With 0-10 V fan control, only the percentage value format is permitted.
The following values are used.
Table 7
Value
Highest permissible fan stage
0 %
The fan is not switched on
1 % .. 99 %
Maximum permissible fan speed for normal and forced operation
100 %
No limit, automatic operation (= object value after reset)
Example of percentage value:
Configured switch-on thresholds:
Fan stage 1, or switch-on threshold (at 0-10 V) = 10 %
Fan stage 2 = 40 % (only with standard)
Fan stage 3 = 70 % (only with standard)
Table 8: Standard fan controller.
Received value on object 9
Maximum fan stage
0 % .. 9 % 2
The fan is not switched on
10 % .. 39 %
1
40 % .. 69 %
2
70 % .. 100 % 3
3
Table 9: 0-10 V Fan controller.
Received value on object 9
Maximum fan speed
0 % .. 9 % 2
The fan is not switched on
10 % .. 99 %
Value from object 9
•Object 10 "Fan off“
Report object for the fan status.
Sends a 1 if the fan is switched off.
1See parameter Format of forced operation and limitation on Fan parameter page.
2The value is under the switch-on threshold for stage 1, the fan cannot be switched on.
3The value is greater/equal to the switch-on threshold for stage 3, i.e. no limitation.

Fan Coil Actuator FCA 2
Updated: Feb-16 (subject to changes) Page 18 of 89
•Object 11 "Fan stage 1"
Only available if fan controller = standard.
Report object for the fan status.
Sends a 1 if the fan is switched to stage 1.
•Object 12 "Fan stage 2"
Only available if fan controller = standard.
Report object for the fan status.
Sends a 1 if the fan is switched to stage 2.
•Object 13 "Fan stage 3"
Only available if fan controller = standard.
Report object for the fan status.
Sends a 1 if the fan is switched to stage 3.
•Object 14 "Actual value at E1", "Window contact status at E1"
The object function depends on the "Function of E1" parameter on the "E1" parameter page.
Table 10
Parameters
"Function of E1"
Meaning
E1 = Window contact
Sends the current status of the window contact to the bus.
→ Only available when using an external controller.
E1 = Actual value
sensor
Sends the currently measured room temperature to the bus.
→ Fixed setting when using an internal controller.
•Object 15 "Fan forced/ auto", "fan auto/forced"
This object is used to activate or leave the forced operation of the fan.
The desired fan stage or speed for forced operation is set by Object 8.
The direction of action of the forced object is adjustable on the General parameter page.
The forced operation of the fan has no effect on valve control.

Fan Coil Actuator FCA 2
Updated: Feb-16 (subject to changes) Page 19 of 89
•Object 16 "Condensation monitoring status"
The function of this object depends on the "Source for drip condensation monitoring" parameter
on the "Condensation monitoring" page.
Table 11
Parameters
„Source for condensation
monitoring“
Function
E2
Sends the status of the condensation monitoring
Object 16
Receives the status of the condensation monitoring
from the bus
•Object 17 "Dew point alarm“
Receives the dew point alarm telegrams.
1 = Alarm
Note: The behaviour is identical with the behaviour set for condensation monitoring.
•Object 18 "Outside temperature"
Receives the outdoor temperature for setpoint adjustment
•Object 19 "Adjust setpoint"
Reports the current setpoint correction as an amount or as a differential.
The format of the correction value is set on the setpoint adjustment parameter page.
Table 12
Format of
correction
value
Function
Example
Absolute
Sends the amount:
Unadjusted base setpoint
+ setpoint correction as setpoint
for additional temperature
controllers.
Unadjusted base setpoint = 20 ºC.
Setpoint correction = +2 K
The object sends: 22 ºC*
Relative
Calculated setpoint correction (in
Kelvin) based on outside
temperature.
Unadjusted base setpoint = 20 ºC.
Setpoint correction = +2 K
The object sends: 2 K*
*Important: If the Use setpoint adjustment for regulation parameter is set on "yes", the base
setpoint after reset (i.e. setpoint for the internal controller) is also adjusted.
In our example it is raised by 2 K in both cases.

Fan Coil Actuator FCA 2
Updated: Feb-16 (subject to changes) Page 20 of 89
•Object 20 "Actuating value loss" / "sensor failure"
The function of the object depends on the "Type of controller used" parameter on the "General"
parameter page.
Table 13
„Type of controller used“
Function
Internal controller
Reports error if the temperature sensor connection is
interrupted or shorted.
External controller*
Reports whether the actuating value is being received
at regular intervals.
1 = Actuating value loss
0 = Actuating value OK
* Sensor errors are only reported when using the internal controller.
•Object 21 "Operating mode preset" / "Night mode <-> Standby"
The object function depends on the "Object for operating mode preset" parameter on the
"Operating mode and operation" parameter page.
Table 14
"Objects for determining the operating
mode"
Function
new: operating mode, presence, window
status
1 byte object.
One of 4 operating modes can be directly
activated *
1 = Comfort, 2 = Standby, 3 = Night,
4 = Frost protection (heat protection)
The details in brackets refer to cooling mode.
old: comfort, night, frost
With this setting, the object is a 1 bit object. It can
be used to activate the operating mode Night or
Standby.
0=Standby 1=Night
*Only the values 1 to 4 are permissible.