Vallox Exxeo User manual

Control panel manual
Document
D11350
Valid from
01.12.2023
Updated
18.10.2023
MANUAL
Model
Vallox Exxeo
Vallox Exxeo DPC

2
CONTROL PANEL FUNCTIONS
Open the roof fan maintenance door. Remove the control panel lid.
Connect the supply voltage to the roof fan to open the Function menu
on the control panel.
Main menus
1. Function
MANUAL
2. Display
3. Modbus
4. PI (only in the DPC model)
5. Fan
6. Calibration (only in the DPC model)
7. Reset
Use the +/– buttons to move between the main menus. Use the Menu
button to access the contents of the menu. Use the Menu button
to return to the main menu.
+/–
+/–
+/–
+/–
+/–
+/–
+–
MENU

3© Vallox Oy - All rights reserved
The Constant Pressure function maintains a constant
pressure in the extract air chamber (only in the pressure
transmitter model Vallox Exxeo DPC). You can choose
two limit values for the extract air chamber pressure.
The Low value specifies the minimum extract air
chamber pressure, and the High value specifies the
maximum extract air chamber pressure. If analog control
is used (0–10 VDC), the minimum extract air chamber
pressure equals 0 VDC and the maximum extract air
chamber pressure equals 10 VDC. If digital control is
MANUAL
1. Function menu
1.1 Constant Pressure menu
Menu +/–+/–+/–+/–+/–
Menu
Only DPC Only DPC
NOTE
Before activating the Constant Pressure control,
remove the measuring tube of the + connector as
shown in the figure.

4
used, the minimum extract air chamber pressure = Ext L
is active and the maximum extract air chamber pressure
= Ext H is active.
The Constant Flow function maintains a extract air flow
(only in the pressure transmitter model Vallox Exxeo
DPC). You can choose two limit values for the extract
air flow. The Low value specifies the minimum air flow
and the High value specifies the maximum air flow. If
analog control is used (0–10 VDC), the minimum air
flow equals 0 VDC and the maximum air flow equals 10
VDC. If digital control is used, the minimum air flow = Ext
L is active and the maximum air flow = Ext H is active.
Using the air flow temperature compensation function
requires installing the NTC 1 temperature sensor. The
temperature measurement NTC 1 is used to correct the
change due to the density of air in the air flow. The K
value is a model-specific value of the Vallox Exxeo roof
fan. An incorrect K value results in an incorrect air flow
measurement result.
1.2 Constant Flow menu
Press the Menu button to open the Constant Pressure
menu.
Use the Menu button to proceed to the setting mode.
Use the +/– buttons to select On or O. Press Menu to
confirm the setting. Selecting O takes you back to the
Constant Pressure menu.
If you select On, the Pressure Low
Setpoint menu for the extract air chamber opens in the
display. Use the Menu button to proceed to the setting
mode. Use the +/– buttons to set the desired value
(0–2,500 Pa). The minimum pressure cannot be higher
than the maximum pressure. Press Menu to confirm the
setting.
Use the + button to exit to the Pressure High Setpoint
menu for the extract air chamber. Use the Menu button
to proceed to the setting mode. Use the +/– buttons
to set the desired value (0–2,500 Pa). The maximum
pressure cannot be lower than the minimum pressure.
Press Menu to confirm the setting.
Use the + button to proceed to the return menu.
Use the Menu button to return to the Main menu. If the
status is active, there is a dot in the bottom right corner
of the display.
MANUAL
+/–
Menu
Menu
+/–
+/–
+
Menu
+/–
Menu
Menu
Menu
Menu

5© Vallox Oy - All rights reserved
MANUAL
+/–
Menu
Menu
+
Menu
+/–
Menu
Menu
+/–
Menu
Menu
Menu
+
Menu
+/–
Menu
+/–
+/–
+
Use the + button to proceed to the Constant Flow menu.
Use the Menu button to proceed to the setting mode.
Use the +/– buttons to select On or O. Press Menu to
confirm the setting. Selecting O takes you back to the
Constant Flow menu.
Selecting On opens the Low Flow Setpoint menu. Use
the Menu button to proceed to the setting mode. Use
the +/– buttons to set the desired value (0.01–5 m/s).
The Low Flow Setpoint cannot be higher than the
maximum air flow. Press Menu to confirm the setting.
Use the +/– buttons to proceed to the High Flow
Setpoint menu. Use the Menu button to proceed to the
setting mode. Use the +/– buttons to set the desired
value (0.01–5 m/s). The High Flow Setpoint cannot be
lower than the minimum air flow. Press Menu to confirm
the setting.
Use the + button to proceed to the air flow temperature
compensation menu (NTC 1 Temp).
Use the Menu button to proceed to the setting mode.
Use the +/– buttons to select On or O. Press Menu to
confirm the setting.
If you choose On, the air flow temperature
compensation menu opens. If the status is active, there
is a dot in the bottom right corner of the display.
Use the + button to proceed to the K value menu. Use
the Menu button to proceed to the setting mode. Use
the +/– buttons to set the K value. Press Menu to confirm
the setting.
Use the + button to proceed to the return menu.
Use the Menu button to return to the Main menu. If the
status is active, there is a dot in the bottom right corner
of the display.

6
The fan can be controlled by 0–10 VDC analog control
or by digital control. You can choose two limit values for
the fan control. The Low value specifies the minimum
fan control percentage and the High value specifies
the maximum fan control percentage. If analog control
(0–10 VDC) is used, the minimum fan control percentage
equals 0 VDC and the maximum fan control percentage
equals 10 VDC. If digital control is used, the minimum
fan control percentage = Ext L is active and the
maximum fan control percentage = Ext H is active. See
section 1.5 for the fan control options.
Use the + button to proceed to the fan control menu.
Use the Menu button to proceed to the setting mode.
Use the +/– buttons to select On or O. Press Menu to
confirm the setting. Selecting O takes you back to the
main menu (in the basic model, the On status is always
active).
Selecting On opens the Low Speed Setpoint menu for
setting the minimum fan control percentage. Use the
Menu button to proceed to the setting mode. Set the
desired value using the +/– buttons (0...100%). The Low
Speed Setpoint percentage cannot be higher than the
High Speed Setpoint percentage. Press Menu to confirm
the setting.
Use the + button to proceed to the High Speed Setpoint
menu for setting the maximum fan control percentage.
Use the Menu button to proceed to the setting mode.
Set the desired value using the +/– buttons (0...100%).
The High Speed Setpoint percentage cannot be lower
than the Low Speed Setpoint percentage. Press Menu
to confirm the setting.
Use the + button to proceed to the return menu.
Use the Menu button to return to the Main menu. If the
status is active, there is a dot in the bottom right corner
of the display.
1.3 Constant Speed menu
MANUAL
+/–
Menu
Menu
+
Menu
Menu
+
Menu
+/–
+

7© Vallox Oy - All rights reserved
1.4 Outdoor air compensation menu (NTC 2 Temp)
The outdoor air compensation function (NTC 2 installed)
can be used to control the fan speed as a function of the
outdoor temperature. When the outdoor temperature
drops below the temperature set for starting the
outdoor air compensation function, the fan starts
to decrease the fan speed linearly by the specified
percentage, until the end temperature for outdoor air
compensation is reached. The fan speed is restricted
by a specified percentage when the outdoor air
compensation end temperature is reached.
Use the + button to proceed to the outdoor air
compensation menu.
Use the Menu button to proceed to the setting mode.
Use the +/– buttons to set the outdoor air temperature
compensation function to On or O. Press Menu to
confirm the setting. Outdoor air compensation requires
installing the NTC 2 sensor (outdoors). Selecting O
takes you back to the Main menu.
If you select On, the Compensation Start menu opens.
Use the Menu button to proceed to the setting mode.
Use the +/– buttons to set the start temperature (+10...–
10°C). Press Menu to confirm the setting.
Use the + button to proceed to the Compensation Stop
menu. Use the Menu button to proceed to the setting
mode. Use the +/– buttons to set the end temperature
for compensation (–10...–30°C). The compensation is
applied linearly between the start and end temperature.
Press Menu to confirm the setting.
Use the + button to proceed to the maximum
temperature drop menu for the compensation function
(Temp Drop). Use the Menu button to proceed to the
setting mode. Use the +/– buttons to set the maximum
Temp Drop as a percentage. Press Menu to confirm the
setting.
Use the + button to proceed to the return menu.
Use the Menu button to return to the Main menu. If the
status is active, there is a dot in the bottom right corner
of the display.
MANUAL
+/–
Menu
Menu
Menu
+/–
Menu
Menu
+/–
Menu
+/–
Menu
+

8
If analog control is selected, the external voltage
(0–10 VDC) controls the fan according to the Low and
High setpoints specified. If digital control is selected,
the external digital data controls the fan according to
the Low and High setpoints specified. Grounding the
connectors Ext L and Ext H controls the fan’s minimum
and maximum according to the settings. If digital
or analog control is not active, the fan is controlled
according to the minimum value setting.
Use the + button to proceed to the External Control
menu.
Use the Menu button to proceed to the 0–10 VDC
Control mode. 0–10 VDC Control uses the 0–10 VDC
input. The Low and High settings specify the control
range according to the control mode selected.
Use the Menu button to proceed to the setting mode.
Use the +/– buttons to select On or O. Press Menu to
confirm the setting. If digital and analog control are O,
Constant Pressure, Constant Flow and fan control use
the minimum setpoint.
If the status is active, there is a dot in the bottom right
corner of the display.
Use the + button to proceed to the External Control
menu. The Low and High setting of the selected control
is set by using the external controls Ext L and Ext H.
Use the Menu button to proceed to the setting mode.
Use the +/– buttons to select On or O. Press Menu to
confirm the setting.
The Digital and analog control menu display opens. If
the status is active, there is a dot in the bottom right
corner of the display.
Use the + button to proceed to the return menu.
Use the Menu button to return to the Main menu.
Use the + button to proceed to the return menu.
Use the Menu button to return to the Main menu.
1.5 Digital and analog control menu
(External Control)
MANUAL
+/–
Menu
Menu
Menu
Menu
Menu
+
+/–
Menu
Menu
Menu
+/–
+/–
Menu
+
+

9© Vallox Oy - All rights reserved
Press the Menu button to open the Flow menu. The
menu will not open if the control is not fitted with a
pressure sensor.
Use the Menu button to view the measured flow (m/s).
Use the Menu button to return to the Main menu.
2.1 Flow menu
2.2 Pressure menu
Use the + button to proceed to the Pressure menu.
The menu will not open if the control is not fitted with a
pressure sensor.
Use the Menu button to view the pressure sensor
reading (Pa).
Use the Menu button to return to the Main menu.
2. Display menu
2.3 Fan speed menu (RPM)
Use the + button to proceed to the fan speed menu.
Use the Menu button to view the fan speed (RPM). If
the display shows no reading, the speed in RPM is not
available.
Use the Menu button to return to the Main menu.
Menu +/–+/–+/–
Menu
+/–
+/–+/–+/–
+/–
+/–+/–
Only DPC Only DPC
MANUAL
Menu
Menu
Menu
Menu
Menu
Menu
Menu
+
+

10
2.4 Analog Input menu
Use the + button to enter the digital input maximum
setting mode menu.
Use the Menu button to view the mode setting. On
= the maximum value has been selected, O = no
maximum value has been selected.
Use the Menu button to return to the Main menu.
Use the + button to proceed to the Analog Input menu.
Use the Menu button to proceed to the analog input
value (VDC).
Use the Menu button to return to the Main menu.
2.5 Digital input minimum value status menu
(External Input L)
Use the + button to enter the digital input minimum
setting mode menu.
Use the Menu button to view the mode setting. On
= the minimum value has been selected, O = no
minimum value has been selected.
Use the Menu button to return to the Main menu.
2.6 Digital input maximum value status menu
(External Input H)
Press + to proceed to the Alarm menu.
Use the Menu button to view the alarms. Use the +/–
buttons to move in the menu.
0= no alarms
Er01 = control setting not achieved
Er02 = pressure sensor not responding
Er03 = NTC 1 error
Er04 = NTC 2 error
Er05 = EXTL and EXTH active simultaneously
Er06 = fan speed (RPM) cannot be read from the
actuator
Er07 = on/o status cannot be read from the actuator
2.7 Alarm menu
Use the Menu button to return to the Main menu.
MANUAL
+/–
Menu
Menu
+/–
Menu
Menu
Menu
Menu
+
Menu
Menu
+
Menu
+
Menu
+

11 © Vallox Oy - All rights reserved
Use the + button to proceed to the air flow temperature
compensation menu.
Use the Menu button to view the temperature setting
(°C). If the display shows no reading, no NTC sensor has
been connected.
Use the Menu button to return to the Main menu.
Use the + button to proceed to the outdoor air
compensation menu.
Use the Menu button to view the temperature setting
(°C). If the display shows no reading, no NTC sensor has
been connected.
Use the Menu button to return to the Main menu.
Use the + button to proceed to the return menu.
Use the Menu button to return to the Main menu.
2.8 Status Indication menu
2.9 Air flow temperature compensation menu
(NTC 1 Temp)
2.10 Outdoor air compensation menu (NTC 2 Temp)
MANUAL
Menu
Menu
+/–
+
Menu
Menu
+
+
Menu
Menu
Menu
Use the + button to proceed to the status indication menu.
Use the Menu button to view the status setting.
0 = fan is not available, Run = fan is in operation.
Use the Menu button to return to the Main menu.

12
Use the + button to proceed to the Modbus Stopbits
menu.
Use the Menu button to proceed to the setting mode.
Use the1 +/– buttons to set stopbit 1 or 2. Press Menu to
confirm the setting.
Use the + button to proceed to the return menu.
Use the Menu button to return to the Main menu.
3. Modbus menu
Press the Menu button to open the Address menu.
Use the Menu button to proceed to the setting mode.
Use the +/– buttons to set the desired address (1...247).
Press Menu to confirm the setting.
Use the + button to proceed to the Baud Rate menu.
Use the Menu button to proceed to the setting
mode. Use the +/– buttons to set the desired value
(96/192/384). Note! The actual value is a one hundred
multiple of the setpoint. Press Menu to confirm the
setting.
Use the + button to proceed to the Parity Bit menu.
Use the Menu button to proceed to the setting mode.
Use the +/– buttons to set the desired Parity Bit. Press
Menu to confirm the setting.
3.1 Address menu
3.2 Baud Rate menu
3.3 Parity Bit menu
3.4 Modbus Stopbits menu
Menu +/–+/–+/–
Menu
+/–
MANUAL
Menu
Menu
Menu
+/–
+/–
+/–
+/–
+/–
Menu
Menu
+/–
Menu
+/–
+
Menu
+
+
Menu
Menu

13 © Vallox Oy - All rights reserved
4. PI control menu
The PI control can be used to control the desired air flow or
chamber pressure. The P and I factory settings of the fans are
shown in the table below. Depending on the control method,
the factory settings may need to be amended. The default
settings are the factory settings of the air flow control.
P value menu:
• The menu can be used to control the Propotional gain. The
higher the P value, the less impact it has on the control. The
lower the P value, the more impact it has on the control.
• A theoretically functional P control value is, depending on
the control method, approximately 2–5% of the maximum
value for the fan air flow or pressure.
I value menu:
• The menu can be used to control the Integrator gain. The
higher the I value, the less impact it has on the control,
and the exact setpoint may not be reached. The lower the
I value, the more impact it has on the control, and a fairly
exact setpoint may be reached.
• A theoretically functional I control value is, depending on
the control method, approximately 0.5–2% of the maximum
value for fan air flow or pressure.
P value adjustment range 1…200, factory setting 20.
I value adjustment range 1…50, factory setting 5.
Menu
Menu +/–+/–
MANUAL
Air Flow Control Pressure Control
P value I value P value I value
Vallox Exxeo 150 5 2 5 2
Vallox Exxeo 300 10 3 10 3
Vallox Exxeo 700 20 5 20 5
Vallox Exxeo 1400 20 5 20 5
Vallox Exxeo 2000 30 10 20 5
Vallox Exxeo 2500 75 30 20 5
Vallox Exxeo 4100 100 40 20 5
THE FACTORY SETTINGS OF THE PI CONTROL

14
Press the Menu button to open the P gain menu.
Use the Menu button to proceed to the setting mode.
Use the +/– buttons to set the desired value (2...9,999).
Press Menu to confirm the setting.
Use the + button to proceed to the Integration time
menu.
Use the Menu button to proceed to the setting mode.
Use the +/– buttons to set the desired value (5...90).
4.2 Integration time menu (I Value)
4.1 Proportional gain menu (P value)
MANUAL
Menu
Menu
+/–
+/–
Menu
Menu
+/–
Menu
+
Press Menu to confirm the setting. Use the + button to
proceed to the return menu.
Use the Menu button to return to the Main menu.
Menu

15 © Vallox Oy - All rights reserved
5. Fan error data menu
5.1 Error data based on RPM menu (Tacho)
Use the + button to proceed to the fan status
information setting menu. Press the +/– buttons
simultaneously for a minimum three seconds to set the
error data. If the status is active, there is a dot in the
bottom right corner of the display.
Use the + button to proceed to the return menu.
Use the Menu button to return to the Main menu.
5.2 Error data based on the status information (Status)
Press the Menu button to open the error data menu
based on the RPM information. Press the +/– buttons
simultaneously for a minimum three seconds to set the
error data. If the status is active, there is a dot in the
bottom right corner of the display.
Menu +/–+/–
Menu
MANUAL
Menu
+/–
Menu
NOTE
Only one of the two
Error data menus may
be active.
+

16
To calibrate the pressure sensor, connect the tubes as
shown in the figure below.
Press the Menu button to open the Calibration menu.
Press the +/– buttons simultaneously for at least three
seconds to perform the calibration. When the calibration
is complete, the display shows ‘0000’ for five seconds.
The Calibration menu appears automatically after this.
If you do not wish to perform the calibration, press Menu
to return to the main menu.
6. Calibration menu
Menu +/–
Menu
MANUAL
Menu
+ and –
Menu

17 © Vallox Oy - All rights reserved
Press the Menu button to open the Reset menu. Press
the +/– buttons simultaneously for a minimum three
seconds to reset the settings. When the settings have
been reset, the display shows ‘----’ for five seconds. The
Reset menu appears automatically after this.
If you do not wish to reset the settings, press Menu to
return to the main menu.
7. Reset menu
Menu +/–
Menu
MANUAL
Menu
+ and –
Menu
NOTE
A reset cancels any
changes made to the
settings by the user.

18
MANUAL
BASIC/FACTORY SETTINGS
Basic setting Factory setting (Air Flow Control) Factory setting (Pressure Control)
Fan control (Constant Speed) Active
Low speed setpoint 20%
High speed setpoint 100%
Digital and analog control (External Control) 0–10 VDC Active
Constant Pressure Control Inactive
Pressure Low Setpoint -100 Pa
Pressure High Setpoint -300 Pa
Constant Flow Control Inactive
Low Flow Setpoint 0.1 m/s
High Flow Setpoint 0.5 m/s
K value, Constant Flow 16.7 Exxeo 150 = 12.5
Exxeo 300 = 16.7
Exxeo 700 = 22.2
Exxeo 1400 = 44.4
Exxeo 2000 = 66.7
Exxeo 2500 = 147.2
Exxeo 4100 = 147.2
Outdoor temperature, Compensation start 5°C
Outdoor temperature, Compensation stop -20°C
Maximum temperature drop for compensation (Temp Drop) 30%
Address 1
Baud Rate 192
Parity Bit EuEn
Modbus Stopbits 1
P value 20 Exxeo 150 = 5
Exxeo 300 = 10
Exxeo 700 = 20
Exxeo 1400 = 20
Exxeo 2000 = 30
Exxeo 2500 = 75
Exxeo 4100 = 100
Exxeo 150 = 5
Exxeo 300 = 10
Exxeo 700 = 20
Exxeo 1400 = 20
Exxeo 2000 = 20
Exxeo 2500 = 20
Exxeo 4100 = 20
Integration time (I value) 5 Exxeo 150 = 2
Exxeo 300 = 3
Exxeo 700 = 5
Exxeo 1400 = 5
Exxeo 2000 = 10
Exxeo 2500 = 30
Exxeo 4100 = 40
Exxeo 150 = 2
Exxeo 300 = 3
Exxeo 700 = 5
Exxeo 1400 = 5
Exxeo 2000 = 5
Exxeo 2500 = 5
Exxeo 4100 = 5

19 © Vallox Oy - All rights reserved
MANUAL
Holding register Description R/RW Datatype Unit Range Default Notes
1001 Control mode R/W U8 0: Constant speed
1: Constant pressure
2: Constant Flow
0
1002 Constant pressure setpoint low R/W I16 Pa -2500…0 (modbus) -100
1003 Constant pressure setpoint high R/W I16 Pa -2500…0 (modbus) -300
1004 Constant flow setpoint low R/W I16 l/s 10….5000 100
1005 Constant flow setpoint high R/W I16 l/s 10….5000 500
1006 Constant speed setpoint low R/W I16 %0…100 20
1007 Constant speed setpoint high R/W I16 %0…100 100
1008 Outdoor temperature compensation enabled R/W U8 0/1 0
1009 K value R/W I16 K*10 10…9999 160
1010 Outdoor temp comp enabled R/W U8 0/1 0
1011 Outdoor air compensation start R/W I16 c-10…10 5
1012 Outdoor air compensation stop R/W I16 c -30…-10 -20
1013 Outdoor air temperature compensation drop R/W I16 %5….90 30
1014 Ext control mode R/W U8 2: 0 - 10V in
1: L/H
0: Modbus
1
1015 Measured pressure value RI16 Pa -6000…6000
1016 Measured flow value R I16 l/s 0…5000
1017 Motor RPM value R I16 rpm 0…4000
1018 External input 0-10VDC value R I16 mV 0…10300
1019 External input 1 RU8 0/1
1020 External input 2 RU8 0/1
1021 NTC 1 RI16 *10 ('c)
1022 NTC 2 RI16 *10 ('c)
1023 Alarm RU8 0…255 Active alarms in
bitfield format.
0 = no alarms
1 = er01
2 = er02
3 = er01 + er02
…...
1024 Status RU8
1025 Modbus address RU8
1026 MODBUS_BAUD_X100 RI16 In bauds now:
9600,19200, 38400 19200
1027 Modbus databit RU8 8…8 8
1028 Modbus parity RU8 0: none
1: even
2: odd
1
1029 Modbus stop bits R U8 1….2 1
1030 PID P-value R/W I16 2…9999 20
1031 PID I-value R/W I16 5….90 5
1032 Fan status mode R/W U8 0: Tacho
1: Status relay 1
1033 Modbus control state R/W U8 0: O
1: L
2: H
0
MODBUS REGISTERS

© Vallox Oy - All rights reserved
www.vallox.com
Vallox Oy | Myllykyläntie 9-11 | 32200 LOIMAA | FINLAND
D11350/7 18.10.2023
Holding register Description R/RW Datatype Unit Range Default Notes
2001 Constant flow setpoint low R/W I16 Pa
2002 Constant flow setpoint high R/W I16 Pa
2003 External input 0-10VDC value R I16 mV
2004 Current measured airflow RI16 l/s
2005 Flow request RI16 l/s
2006 Flow error, request - measured (for PI control) R I16 l/s
2007 Fan speed request, before fan speed change filter RI16 %
2008 Actual fan speed request, .% of 0-10V R U16 0.1% 0…1000
2009 Fan RPM R I16 rpm
Constant flow mode related registers (for monitoring etc.)
Holding register Description R/RW Datatype Unit Range Default Notes
3001 Constant pressure setpoint low R/W I16 Pa
3002 Constant pressure setpoint high R/W I16 Pa
3003 External input 0-10VDC value R I16 mV
3004 Current measured pressure RI16 l/s
3005 Pressure request RI16 l/s
3006 Pressure error, request - measured (for PI control) R I16 l/s
3007 Fan speed request, before fan speed change filter RI16 %
3008 Actual fan speed request, .% of 0-10V R U16 0.1% 0…1000
3009 Fan RPM R I16 rpm
Constant pressure mode related registers (for monitoring etc.)
MANUAL