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c-pro micro SAVE
User Manual
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EVCO c-pro micro SAVE User Manual

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PROGRAMMABLE CONTROLLER FOR
AIR HANDLING UNITS WITH
CROSS FLOW HEAT RECOVERY
APPLICATION MANUAL
CODE 144SAVE00E01
Important
Read these instructions carefully before installation and use and follow all recommendations regarding installation and for the electric connection; keep these instructions for future reference.
The instrument must be disposed of according to local Standards regarding the collection of electric and electronic appliances.
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Summary
Important ............................................................................................................................................................................2
Summary.............................................................................................................................................................................3
1 GENERALITIES ......................................................................................................................................................4
1.1 Description ......................................................................................................................................................4
2 Applications ..............................................................................................................................................................5
2.1 COMPACT solution........................................................................................................................................5
2.2 COMPLETE solution ...................................................................................................................................... 8
2.3 Connection lay out for C-PRO MICRO CAN...............................................................................................13
2.4 Connection lay out for C-PRO EXP MICRO CAN....................................................................................... 15
3 Network components and accessories.....................................................................................................................16
4 User interface ..........................................................................................................................................................17
4.1 Display and keyboard ....................................................................................................................................17
4.1.1 V-graph interface ................................................................................................................................. 17
4.2 List of pages................................................................................................................................................... 18
4.2.1 Main Menu........................................................................................................................................... 18
4.2.2 Password .............................................................................................................................................. 18
4.2.3 User Menu............................................................................................................................................19
4.2.4 Installer Menu ......................................................................................................................................19
4.2.5 RTC Menu............................................................................................................................................20
4.2.6 Manufacturer Menu..............................................................................................................................20
4.2.7 Main OFF page .................................................................................................................................... 21
4.2.8 Main ON page...................................................................................................................................... 21
4.2.9 State Pages ........................................................................................................................................... 22
4.2.10 Alarm pages.........................................................................................................................................22
4.2.11 Log pages.............................................................................................................................................23
4.2.12 Project and Firmware Versions............................................................................................................ 23
5 Configuration parameters........................................................................................................................................24
5.1 COMPACT solution list of configuration parameters................................................................................... 24
5.2 COMPLETE solution list of configuration parameters .................................................................................28
6 REGULATIONS.....................................................................................................................................................33
6.1 State of the unit.............................................................................................................................................. 33
6.1.1 OFF state for alarm ..............................................................................................................................34
6.2 RTC setting.................................................................................................................................................... 34
6.3 Restore the (factory) default parameters........................................................................................................34
6.4 Last maintenance operation date....................................................................................................................35
6.5 Programming key ..........................................................................................................................................35
6.6 Functionality of the COMPACT control solution .........................................................................................36
6.6.1 Supply and return fans ......................................................................................................................... 36
6.6.2 Recovery heat exchanger anti-freeze protection ..................................................................................37
6.6.3 Cross flow recovery heat exchanger and by-pass damper....................................................................38
6.7 Features of the COMPLETE control solution ...............................................................................................40
6.7.1 Post-Ventilation ...................................................................................................................................40
6.7.2 Differential pressure switch .................................................................................................................40
6.7.3 Fresh air intake damper........................................................................................................................ 41
6.7.4 Heating.................................................................................................................................................41
6.7.5 Heat exchanger by-pass in summer mode (Free-Cooling) ...................................................................43
6.7.6 Modulation of the air flow with CO2 probe..........................................................................................43
6.7.7 Heating control depending on Return Air Temperature....................................................................... 43
7 DIAGNOSTICS...................................................................................................................................................... 44
7.1 Manual and automatic reset alarms ............................................................................................................... 44
7.1.1 Manual reset alarms .............................................................................................................................44
7.1.2 Automatic reset alarms.........................................................................................................................44
7.2 Alarms table...................................................................................................................................................45
7.3 General alarm relay .......................................................................................................................................45
7.4 Alarms log .....................................................................................................................................................46
8 MODBUS VARIABLES ........................................................................................................................................47
8.1 ModBus exporting table ................................................................................................................................47
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1 GENERALITIES
1.1 Description
The application is dedicated to the control and regulation of the Air Handling Units with cross flow recovery heat exchanger. There are two solutions available:
• COMPACT Control: Responds to minimum requirements and the Standards.
• COMPLETE Control: Integrates the heating and high recovery efficiency functions to the
Base solution.
The solution makes use of the large modularity of the c-pro micro programmable controllers: the compact control unit uses just one C-PRO MICRO CAN controller, connected to a LCD graphical user terminal VGRAPH, while to obtain the complete control solution a C-PRO EXP MICRO (CAN) must be connected to the C-PRO MICRO (CAN).
The C-PRO MICRO (CAN) controller has the following I/O:
• Digital outputs: 6
• Digital inputs: 5
• Analogical inputs: 4
• Analogical outputs: 1+2
The C-PRO EXP MICRO (CAN) expansion has the following I/O:
• Digital outputs: 6
• Digital inputs: 5
• Analogue inputs: 4
• Analogue outputs: 1 (+2 optional)
Both instruments are equipped with CAN field port and a second TTL port, which via a TTL / RS485 serial interface (MODbus) allows connection to BMS or EVCO (RICS) supervision systems.
The main control functions managed by the “Complete” solution are:
- Supply fan management
- Return fan management
- Management of the cross flow recovery heat exchanger by-pass damper
- Outside air damper management
- Management of hot water coil for heating (or a group of 3 electric heaters)
- Management of time bands with ECONOMY and COMFORT working mode
- CO2 probe management for fan control
- Alarms log
- User Menu split in three main levels (User, Installer, Manufacturer), each protected by a
different password.
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2 Applications
2.1 COMPACT solution
The picture above shows a principle layout. It is intended for indicating the presence of the components, not their position, in the AHU controlled by the EVCO device. It is also NOT intended for indicating the real layout of the AHU.
The unit has the following main features:
• N° 2 Fans with 3 speeds or with 1 speed + speed variator
• N° 1 Heat exchanger/Cross flow recovery heat exchanger
• N° 1 Recovery heat exchanger By-pass damper (optional)
• N° 1 Recovery heat exchanger anti-freeze temperature probe
• N° 1 Presence sensor (installed in the room)
• N° 1 Start – Stop (remote)
Note: The compact solution is by default configured for piloting 3-speed fans (PG10 = DO)
2.1.1 I/O configuration with 3-speed fans
c-Pro MICRO CAN with 2 AO (V+V) (code CPU1S0C2) I/O Description
AI 1 AI 2 AI 3 AI 4
TTL (485) CAN bus
DI 1 DI 2 DI 3 DI 4 DI 5
AO 1 AO 2 AO 3 Digital Outputs (Relay) DO 1 DO 2 DO 3 DO 4 DO 5 DO 6
RTC system clock - Real Time Clock: present on user interface VGraph
Analogue inputs
Anti-freeze Temperature Probe (Recovery heat exchanger By-Pass) NTC
Not used Not used Not used
Serial ports
(TTL with external interface EVIF becomes RS485 Modbus RTU) To the EXP micro and/or Vgraph
Digital inputs
Presence sensor Start – Stop (remote) Supply fan thermal overload Return fan thermal overload By-pass damper presence (anti-freeze recovery heat exchanger)
Analogue outputs
Not used Not used
Recovery heat exchanger BY-PASS damper control (0-10 V)
Return fan speed 1 Return fan speed 2 Return fan speed 3 Supply fan speed 1 Supply fan speed 2 Supply fan speed 3
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Electric connections with 3-speed fans Note: For driving the 3-speed fans (Digital output) set PG10=DO
2.1.2 I/O configuration with 1 speed fans + speed variator
c-Pro MICRO CAN with 2 A/O V+V (code CPU1S0C2V)
I/O Description
AI 1 AI 2 AI 3 AI 4
TTL (485) CAN bus
DI 1 DI 2 DI 3 DI 4 DI 5
AO 1 AO 2 AO 3 Digital Outputs (Relay) DO 1 DO 2 DO 3
DO 4 DO 5 DO 6
Analogue inputs
Anti-freeze Temperature Probe (Recovery heat exchanger By-Pass) NTC
Serial ports
TTL with external interface EVIF becomes RS485 Modbus RTU To the EXP micro and/or Vgraph
Digital inputs
Presence sensor Start – Stop (remote) Supply fan thermal switches (protection) Return fan thermal switches (protection) BY-Pass damper presence ( anti-freeze recovery heat exchanger)
Analogue outputs
Return fan piloting signal (0-10 V) Supply fan piloting signal (0-10 V)
Return fan (speed 0) enabling Supply fan (speed 0) enabling
Recovery heat exchanger BY-PASS damper
RTC system clock - Real Time Clock: present on the user interface Vgraph
Not used Not used Not used
Not used
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Electric connections with 1 speed fans + variator Note: For driving the modulating fans (Analogue output) set PG10=AO
(*) The control of the recovery heat exchanger By-Pass damper can be either digital or analogue, by setting the PG03 parameter.
C-PPRO MICRO and Vgraph power supply must be each other galvanically insulated
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2.2 COMPLETE solution
The picture above shows a principle layout, it is intended for indicating the presence of the components, not their position, in the AHU controlled by the EVCO device. It is also NOT intended for indicating the real layout of the AHU.
N.B. 1) The coil electric heater is an alternative to the hot water coil.
2) The CO2 probe is an optional just in the 3-speed fans version. In this version the heating
regulation function based on the return air temperature is also available.
The following are added to the functions and parts of the COMPACT version:
- High efficiency Recovery heat exchanger/Heat exchanger
- Differential pressure switch
- Electric heaters protection
- Electric heaters option or Hot water coil option (parameter PG02)
- Outside air damper option (parameter PG04)
- Summer By-Pass damper option (parameter PG08)
- Outdoor Air Temperature Probe
- Return Air Temperature Probe
- Supply Air Temperature Probe
- CO2 and air quality sensor for automatic fan speed modulation option
- Heating control based on return temperature probe
Notes
• The electric heaters can be used instead of (not together with) the how water coil
• The COMPLETE solution is configured by default for driving 3 speed fans (PG10 = DO)
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2.2.1 I/O configuration with 3-speed fans
c-Pro MICRO CAN with 2 A/O V+V (code CPU1S0C2V) c-Pro EXP MICRO CAN with 2 A/O V+V (code CPUES0C2V) I/O Description
AI 1 AI 2 AI 3 AI 4 AI 5 AI 6 AI 7 AI 8
TTL (485) CAN bus Digital inputs DI 1 DI 2 DI 3 DI 4 DI 5 DI 6 DI 7 DI 8 DI 9 DI 10
AO 1 AO 2 AO 3* AO 4 AO 5 AO 6
DO 1 DO 2 DO 3 DO 4 DO 5 DO 6 DO 7* DO 8 DO 9 DO 10 DO 11 DO 12
Analogue inputs
Anti-freeze Temperature Probe (Recovery heat exchanger By-Pass) - NTC Supply Air Temperature Probe - NTC Return Air Temperature Probe - NTC
CO2 probe (0-5 V) (Optional)
Outdoor Air Temperature Probe - NTC
Not used Not used Not used
Serial ports
TTL with external interface EVIF becomes RS485 Modbus RTU To the EXP micro and/or Vgraph
Presence sensor Start – Stop (remote) Supply fan thermal overload (protection) Return fan thermal overload (protection) BY-Pass presence ( anti-freeze recovery heat exchanger) Differential pressure switch Hot water coil anti-freeze thermostat Electric heaters thermal overload Outside air damper limit switch (full open) Outside air damper limit switch (full closed)
Analogue outputs
Not used
Hot water coil modulating valve control (0-10 V) Recovery heat exchanger BY-PASS damper control (0-10 V)
Not used Not used Not used
Digital Outputs (Relay)
Return fan first speed Return fan second speed Return fan third speed Supply fan first speed Supply fan second speed Supply fan third speed Recovery heat exchanger BY-PASS damper Outside air damper Electric heaters step 1 Electric heaters step 2 Electric heaters step 3 Generic alarm (can be configured)
(*) The control of the Recovery heat exchanger By-Pass damper can be digital or analogue, by setting the relevant PG03 parameter.
RTC system clock - Real Time Clock: present on the user interface VGraph
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Electric connections with 3-speed fans
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2.2.2 I/O configuration with 1 speed fans + speed variator
c-Pro MICRO CAN with 2 A/O V+V (code CPU1S0C2V) c-Pro EXP MICRO CAN with 2 A/O V+V (code CPUES0C2V) I/O Description
AI 1 AI 2 AI 3 AI 4 AI 5 AI 6 AI 7 AI 8
TTL (485) CAN bus Digital inputs DI 1 DI 2 DI 3 DI 4 DI 5 DI 6 DI 7 DI 8 DI 9 DI 10
AO 1 AO 2 AO 3* AO 4 AO 5 AO 6
DO 1 DO 2 DO 3 DO 4 DO 5 DO 6 DO 7* DO 8 DO 9 DO 10 DO 11 DO 12
Analogue inputs
Anti-freeze Temperature Probe (Recovery heat exchanger By-Pass) - NTC Supply Air Temperature Probe - NTC Return Air Temperature Probe - NTC
Not used
Outdoor Air Temperature Probe - NTC
Not used Not used Not used
Serial ports
TTL with external interface EVIF becomes RS485 Modbus RTU To the EXP micro and/or Vgraph
Presence sensor Start – Stop (remote) Supply fan thermal overload Return fan thermal overload BY-Pass damper presence ( anti-freeze recovery heat exchanger) Differential pressure switch Hot water coil anti-freeze thermostat Electric heaters thermal overload Outdoor air damper limit switch (full open) Outdoor air damper limit switch (full closed)
Analogue outputs
Not used
Hot water coil modulating valve control (0-10 V) Recovery heat exchanger BY-PASS damper control (0-10 V)
Not used
Return fan driving signal (0-10 V) Supply fan driving signal (0-10 V)
Digital Outputs (Relay)
Return fan speed 0 Outlet fan speed 0
Recovery heat exchanger BY-PASS damper Outdoor air damper Electric heaters step 1 Electric heaters step 2 Electric heaters step 3 Generic alarm (can be configured)
(*) The control of the recovery heat exchanger By-Pass damper can be digital or analogue, by setting the PG03 parameter.
The C-PPRO MICRO and C-PRO EXP MICRO power supplied must be galvanically isolated from each other.
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Electric connections with 1 speed fans + variator
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2.3 Connection lay out for C-PRO MICRO CAN
Below find the connection lay out of the C-PRO MICRO controller with tables relevant to the meaning of the inputs and outputs.
C-PRO MICRO connections
Connector 1: Connection for the relay outputs
Conn. Code Description
C1-1 DO1 Relay n.1 normally open contact C1-2 COMMON DO1 Common relay n.1 C1-3 DO2 Relay n.2 normally open contact C1-4 COMMON DO2 Common relay n.2 C1-5 DO3 Relay n.3 normally open contact C1-6 COMMON DO3 Common relay n.3 C1-7 DO4 Relay n.4 normally open contact C1-8 COMMON DO4, DO5 Common relay n.4,5
C1-9 DO5 Relay n.5 normally open contact C1-11 DO6 Relay n.6 normally open contact C1-12 COMMON DO6 Common relay n.6
Connector 2: Connection for the upload/download parameters and/or output pen for RS485 module and/or controller flash download module
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Connector 3: Connector for the analogue output (optional, not available in the day versions)
Conn. Code Description (Version V+I)
C3-1 AO2 0-10VDC
C3-2 GND Common analogue output
C3-3 AO3 4-20mA
Description (Version I+I)
C3-1 AO2 4-20mA
C3-2 GND Common analogue output
C3-3 AO3 4-20mA
Description (Version V+V)
C3-1 AO2 0-10VDC
C3-2 GND Common analogue output
C3-3 AO3 0-10Vdc
Connector 4: Connector for low voltage signals
Conn. Code Description
C4-1 12VAC Power supply (12VAC/DC)
C4-2 5V Ratiometric transducers power supply
C4-3 GND Common analogue and digital inputs
C4-4 GND Common analogue and digital inputs
C4-5 AI4 Analogue input n.4
(for NTC probes, 0/4-20 mA or 0-5V transducers)
C4-6 AI3 Analogue input n.3
(for NTC probes, 0/4-20 mA or 0-5V transducers) C4-7 AI2 Analogue input n.2 (for NTC probes) C4-8 AI1 Analogue input n.1 (for NTC probes) C4-9 12VAC Power supply (12VAC/DC)
(max. 50 mA, not protected against short circuit)
C4-10 12VDC 0/4-20 mA transducers and phase cut module power supply C4-11 AO1 Jog output for phase cut module C4-12 DI5 Digital input n.5 C4-13 DI4 Digital input n.4 C4-14 DI3 Digital input n.3 C4-15 DI2 Digital input n.2 C4-16 DI1 Digital input n.1
Connector 5: Connector for the remote keyboard and expansion of I/O (CAN)
Conn. Code Description
C5-1 CAN + Connector for the connection of the CAN + serial port C5-2 GND Ground reference connector C5-3 CAN - Connector for the connection of the CAN - serial port
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2.4 Connection lay out for C-PRO EXP MICRO CAN
Below find the connection lay out of the expansion with tables relevant to the meaning of the inputs and outputs.
Connector 1: Connection for the relay outputs
Conn. Code Description
C1-1 DO1 Relay n.1 normally open contact C1-2 COMMON DO1 Common relay n.1 C1-3 DO2 Relay n.2 normally open contact C1-4 COMMON DO2 Common relay n.2 C1-5 DO3 Relay n.3 normally open contact C1-6 COMMON DO3 Common relay n.3 C1-7 DO4 Relay n.4 normally open contact C1-8 COMMON DO4,
DO5
C1-9 DO5 Relay n.5 normally open contact
C1-11 DO6 Relay n.6 normally open contact C1-12 COMMON DO6 Common relay n.6
Connector 2: Connector for low voltage signals
Conn. Code Description
C2-1 12VAC Power supply (12VAC/DC) C2-2 Not connected Not connected C2-3 GND Common analogue and digital inputs C2-4 GND Common analogue and digital inputs C2-5 AI4 Analogue input n.4 (for NTC 0/4-20 mA or 0-5V transducers) C2-6 AI3 Analogue input n.3 (for NTC 0/4-20 mA or 0-5V transducers) C2-7 AI2 Analogue input n.2 (for NTC probes) C2-8 AI1 Analogue input n.1 (for NTC probes) C2-9 12VAC Power supply (12VAC/DC)
C2-10 12VDC 0/4-20 mA transducers and phase cut module power supply
C2-11 AO1 Jog output for phase cut module C2-12 DI5 Digital input n.5 C2-13 DI4 Digital input n.4 C2-14 DI3 Digital input n.3 C2-15 DI2 Digital input n.2 C2-16 DI1 Digital input n.1
Connector 3: Connector for the controller (IntraBus)
Conn. Code Description
C3-1 12VDC Power supply C3-2 GND Common C3-3 DATA Serial live
Connector 3: Connector for the controller (CAN)
Conn. Code Description
C3-1 CAN + Connector for the connection of the CAN + serial port C3-2 GND Mass reference connector C3-3 CAN - Connector for the connection of the CAN - serial port
Common relay n.4, 5
(max. 50 mA, not protected against short circuit)
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3 Network components and accessories
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4 User interface
4.1 Display and keyboard
Both control solutions (compact and complete) use the Vgraph user terminal equipped with LCD graphic display 128x64 pixel and 6 keys. The terminal can be panel mounted (IP 65 with optional gasket) on the unit or remote using EVCO wall box or in wall recess boxes type “506”. Besides the EVCO front plates it is possible to use BTicino “Living” or “Light” series plates.
4.1.1 V-graph interface
The interface is connected via CAN to the controller
The keyboard has 6 keys for page navigation and editing values, with the following meaning:
- UP and DOWN: in editing they modify the parameter values, otherwise they move the
cursor. If the DOWN button is pushed for about 2 seconds the buzzer is silenced.
- LEFT and RIGHT: display of the masks in succession.
- ENTER: in editing it confirms the value, otherwise it sends any control associated to the text
where the cursor is positioned. If an alarm page is being displayed pushing this key for about 2 seconds causes the alarm reset. If the alarms pages are being displayed a short push moves to the following active alarm.
- ESC: in editing it cancel the modification, otherwise it requests for default page associated
to the current page. If the ESC key is pressed for about 2 seconds the unit is switched on/off.
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4.2 List of pages
This paragraph presents the main pages and menus present in the application. The general menu is divided into three levels: user, installer and manufacturer, there is also a menu for the management of the system clock and some free access state pages. The menus have the following structure:
⋅ Main Menu
⋅ User Menu (Level 1, level 1 password) ⋅ Installer Menu (Level 2, level 2 password)
o Clock branch installer menu o Maintenance branch installer menu o Fans branch installer menu o Heating elements branch installer menu o Free-cooling branch installer menu o Safety device branch installer menu o Various device branch installer menu o Default branch installer menu (level 3, only with unit OFF)
⋅ Manufacturer Menu (Level 3, level 3 password, only with unit OFF)
o Configuration branch manufacturer menu o Fans branch manufacturer menu o Heating elements branch manufacturer menu o Outdoor air damper branch manufacturer menu o Recovery heat exchanger branch manufacturer menu o Safety device branch manufacturer menu o Various branch manufacturer menu
4.2.1 Main Menu
The main menu is the access point for all other system menus.
It is possible to display this menu from any point of the user interface pushing the ENTER key for about 2 seconds. From this page it is possible to enter the other menu using the UP and DOWN keys and pushing the ENTER key to confirm. By pushing the ESC key on this page it is possible to go back to the main page of the application.
4.2.2 Password
Each menu has an associated level (except clock and log) with a relevant password for accessing to the various functions present in that menu. Once the correct password has been entered the protected function can be accessed. Two effects are obtained by entering a password correctly:
⋅ release of the correlated level ⋅ release of the sub-levels
Every level password can be modified from the same level or higher levels. For instance any password can be modified from the manufacturer level.
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The range of values accepted for the passwords is: -999 / 9999. If no action is taken on a menu after 4 minutes the password inserted expires and it must be entered again.
4.2.3 User Menu
The User menu is on level 1, that is the level 1 (or higher) password must be taped in for entering the menu and display/modify the parameters present in this branch. By pushing the RIGHT key from this mask it is possible to access the page used for changing the password (PSd1).
4.2.4 Installer Menu
The Installer menu is on level 2, that is the level 2 (or higher) password must be taped in for entering the menu and display/modify the parameters present in this branch.
Compact version Complete version
The installer menu contains all parameters relevant for the configuration of all functionalities (alarms, regulation, logic, features...) of the unit. Pushing the RIGHT or LEFT keys it is possible to access the mask for setting the password (PSd2).
In the MAINTENANCE menu it is possible to view/enable the features relevant for the working condition of the devices controlled (i.e. the running hours and the maximum threshold of hours acceptable). In this menu it is possible to see the states of the physical inputs and outputs of the board and also to set the offset to be added to the analogue inputs measure in order to compensate the readout error due to wiring, positioning of the probes.
In the FANS, HEATING and FREE COOLING menus it is possible to set the parameters for management of the related devices
In the SAFETIES menu stand all parameters concerning the alarms and the management of the safety conditions for the controlled devices
In the VARIOUS PARAMETERS menu stand other general parameters, moreover, entering this menu it is possible to access the page for resetting the parameters to factory default values.
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4.2.5 RTC Menu
This menu contains the functionalities linked to the system RTC:
⋅ the setting of the clock ⋅ setting the COMFORT/ECONOMY time bands
To enter this menu, press ENTER on the RTC mask from the main menu.
In this page it is possible to set the system clock and the two time periods of the fans’ automatic working (parameters PT01 and PT02). By pushing the ESC key from this menu it is possible to go back to the general menu.
4.2.6 Manufacturer Menu
The Manufacturer menu is on level 3, that is the level 3 password must be taped in for entering the menu and display/modify the parameters present in this branch. This menu can only be accessed with the unit OFF.
Compact version Complete version
The manufacturer menu contains all parameters relevant to unit configuration.
In the CONFIGURATION menu it is possible to display/modify the parameters relevant for the design features of the unit.
In the FANS, HEATING, OUTDOOR AIR DAMPER and RECOVERY HEAT EXCHANGER menus, it is possible to set the parameters relevant to management of the devices.
In the SAFETIES menu stand all parameters concerning the alarms and the management of the safety conditions for the controlled devices.
In the VARIOUS PARAMETERS menu stand other general parameters, moreover, entering this menu it is possible to access the page for resetting the parameters to factory default values.
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Fans speed
4.2.7 Main OFF page
The main OFF page changes depending on the reason why the unit is OFF. There are three possibilities:
1. Unit OFF: Unit switched-off pushing the relevant key
2. Unit OFF by Start-Stop: Unit ON by key but OFF due to digital contact DI/2 Start-Stop in
“Stop” position
3. Unit OFF by Supervisor: Unit ON by key but OFF due to a Modbus command from the
supervision module.
4. Unit OFF by Alarm: Unit switched-ON by key but switched-OFF due to unit block alarms.
Note: The MANUFACTURER menu can only be accessed if the unit is in one of these states.
4.2.8 Main ON page
The main page is displayed when the unit is in ON mode:
COMPACT VERSION
Recovery Heat Exchanger Bypass damper status
Information regarding the fans working mode:
- COMFORT: Comfort period automatic control
- COMFORT+P.: Comfort period automatic control
Alarm icon: appears when there are active alarms. If all of them have been viewed the icon becomes fixed, otherwise (some active alarms not viewed) the icon keeps flashing.
From the main page it is possible to access the state pages by pressing the RIGHT key. Pressing ESC it’s possible to go to the page for displaying the alarms and log.
WITH presence sensor active.
- ECONOMY: Economy period automatic control.
- ECONOMY+P.: Economy period automatic control
WITH presence sensor active.
- NOT WORKING DAY: Automatic control during
not working days
- RTC ERROR: Automatic control during RTC error
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control (supply/return)
COMPLETE VERSION
Air temperature set point for main temperature
Information regarding the fans working mode:
- COMFORT: Comfort period automatic control
- COMFORT+P.: Comfort period automatic control
WITH presence sensor active.
Alarm icon: appears when there are active alarms. If all of them have been viewed the icon becomes fixed, otherwise (some active alarms not viewed) the icon keeps flashing.
- ECONOMY: Economy period automatic control.
- ECONOMY+P.: Economy period automatic control
WITH presence sensor active.
- NOT WORKING DAY: Automatic control during
not working days
- RTC ERROR: Automatic control during RTC error
- MANUAL: Manual control
- CO2 SENSOR: Control based on CO2 sensor readout
From the main page it is possible to access the state pages by pressing the RIGHT key. Pressing ESC it’s possible to go to the page for displaying the alarms and log.
4.2.9 State Pages
From the main page it is possible to scroll the free access pages, which show the states of the controlled devices. These pages are not protected by password and can only be accessed with unit ON. To display them, press the LEFT and RIGHT keys.
Note: If some devices are disabled from parameter, the information regarding their working status is replaced with dots “…” in order to avoid filling the state pages with information not enabled by the control. The same is valid for the disabled probes.
4.2.10 Alarm pages
To display the alarms, select “Show ALARMS>>>” from the general menu or press ESC from the main page to display this page:
Position the cursor on “Show ALARMS >>” and then press ENTER key. If no alarms are present the writing “NO ALARS” is displayed. Otherwise every time ENTER key is pushed the next active alarm is displayed. For resetting the alarm, in case the alarm condition is expired, keep pushed the ENTER key for about 2 seconds. If the alarm cause is still active the alarm is not reset and the current mask remains displayed. If the ESC key is pressed on an alarm page or you wait 60 seconds for timeout, go back to the main page of the application. This level is not protected by a password.
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State of the log
Date and time of the
Running number of the record
Alarm code
4.2.11 Log pages
To display the alarms log, select HISTORIAN from the general menu or press ESC from the main page to display this page:
move the cursor on “Show HISTORIAN >>” and push the ENTER key. If no elements are present, “NO ALARMS” is displayed otherwise the following page is proposed:
Ok: correct reading Empty: empty memory Overflow: memory full Error: failed log reading
Alarm value
In this page stand the information regarding the last element in the log. To view the previous element move the cursor on “Next>>” and push the ENTER key. By repeating this procedure it is possible to scroll all log elements until reaching the first element inserted. Once reached the last element, on the request of the next element, the last element memorised is re­proposed: log display is circular. To exit the log pages, press the ESC key or wait 60 seconds for timeout. This level is not protected by a password.
4.2.12 Project and Firmware Versions
Press the LEFT+RIGHT keys at the same time for about 3 seconds. The information regarding the versions of the project and the controller firmware are displayed.
To return to the main application page, press the ESC key.
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5 Configuration parameters
Below are listed all parameters managed by the application. A brief description, the range of acceptable values, unit of measurement, the default value proposed and the menu in which it is found is supplied for every parameter. The menus are structured following this logic:
⋅ UT: user menu ⋅ IS: installer menu
o OR: Clock branch installer menu o IS-MA: maintenance branch installer menu o IS-F: fans branch installer menu o IS-B: heating coils branch installer menu o IS-SE: outside air damper branch installer menu o IS-FC: Free Cooling branch installer menu o IS-S: safety device branch installer menu o IS-V: various parameters branch installer menu o IS-D: default branch installer menu
⋅ C O: manufacturer menu
o CO-G Configuration branch manufacturer menu o CO-F Fans branch manufacturer menu o CO-B Heating coils branch manufacturer menu o CO-SE Outside air damper branch manufacturer menu (free-cooling) o CO-RH Recovery heat exchanger branch manufacturer menu o CO-S Safety branch manufacturer menu o CO-V Various branch manufacturer menu
5.1 COMPACT solution list of configuration parameters
Code Parameter description Default Min Max UM Menu Notes
Level 1 USER MENU
USER
Only if
PF02 Fans speed in manual regulation mode V3 V0 V3 UT
PSd1 User level password (1) 0 -999 9999 - UT
Level 2 INSTALLER MENU
CLOCK
PT01 Start of the COMFORT time period 08:00:00 00:00:00 23:59:59 - OR PT02 Start of the ECONOMY time period 20:00:00 00:00:00 23:59:59 - OR
PT11 Sunday
PT12 Monday
PT13 Tuesday
PT14 Wednesday
PT15 Thursday
PT16 Friday
PT17 Saturday
0
Working 0 Working 1 Not Working
0
Working 0 Working 1 Not Working
0
Working 0 Working 1 Not Working
0
Working 0 Working 1 Not Working
0
Working 0 Working 1 Not Working
0
Working 0 Working 1 Not Working
0
Working 0 Working 1 Not Working
OR
OR
OR
OR
OR
OR
OR
PF01=0 (Manual Regulation)
Page 24
Code Parameter description Default Min Max UM Menu Notes
MAINTENANCE
PM01 PM02 Supply fan working hours 0 0 100000 Hours IS-MA
PM03 Return fan working hours 0 0 100000 Hours IS-MA PM90 Last maintenance date IS-MA
PM11 Anti-freeze air temperature probe offset
PF01
PF03 Fans speed in COMFORT period V2 V0 V3 IS-F PF04 Fans speed in ECONOMY period V1 V0 V3 IS-F
PF05 Fans speed in RTC error V0 V0 V3 IS-F
PF12 PF13 Speed in case of « non Working » day V0 V0 V3 IS-F
PF21 Speed variator value corresponding to speed V1 33.50 0.00 100.00 % IS-F PF22 Speed variator value corresponding to speed V2 66.50 0.00 100.00 % IS-F PF23 Speed variator value corresponding to speed V3 100.00 0.00 100.00 % IS-F
PA01 Enabling fans working hours alarm
PA02
PA04 PA25 Signals RTC alarm on alarm relay Yes (1) No (0) Yes (1) - IS-S
PA27 Signals probe alarms on alarm relay Yes (1) No (0) Yes (1) - IS-S
PH01 Minimum temperature value -15.0
PH02 Maximum temperature value 95.0 PH01
PH05 PH06 Enables unit switch-on/off from supervisor No (0) No (0) Yes (1) IS-V
PH18 Cancels the alarms log NO (0) NO (0) YES (1) - IS-V
PH20 Enable buzzer Yes (1) No (0) Yes (1) - IS-V
PH30
PH99 Reset the factory parameters default NO (0) NO (0) YES (1) - IS-D
PSd2 Installer level password (2) 0 -999 9999 - IS
Max number of fans working hours. The relevant alarm occurs over this limit
FANS
Type of fans regulation: 0: Manual 1: Automatic 2: Automatic with presence sensor
Fans speed in COMFORT with presence sensor active
ALARM PARAMETERS
Signals working hours alarms on alarm relay Signals the supply/return fans thermal overload on the alarm relay
VARIOUS PARAMETERS
Enables unit switch-on/off from "Start/Stop" digital input
Temperature unit of measurement 0: °Celsius 1: °Fahrenheit
20000 0 100000 Hours IS-MA
0.0
0.0
0 0 2 IS-F
V3 V1 V3 IS-F
Active
(1)
No (0) No (0) Yes (1) - IS-S
Yes (1) No (0) Yes (1) - IS-S
Yes (1) No (0) Yes (1) - IS-V
0 (°C) 0 (°C) 1 (°F) - IS-V
-10.0
-18.0
Not-active
(0)
-20.0
-4.0
10.0
18.0
Active (1) - IS-S
PH02
110.0
230.0
°C °F
°C °F °C °F
IS-MA
IS-V
IS-V
Only if PF01=1/2 /3
Only version with variator
Set Yes (1) ad wait for the NO (0) value to be read again
Wait for the NO (0) value to be read again on reset completion
Page 25
Code Parameter description Default Min Max UM Menu Notes
Level 3 MANUFACTURER MENU
CONFIGURATION PARAMETERS After modification of these parameters it is recommended to remove and then re-apply the power supply to the board.
PG01 Enabling of expansion No (1) No (0) Yes (1) - CO-G
Selection of type of device for heating:
PG02
PG03
PG04 Outside air damper enabling No (0) No (0) Yes (1) - CO-G PG05 Enabling of post-ventilation No (0) No (0) Yes (1) - CO-G
PG06
PG08 PG09 Activation of outside air damper limit switch No (0) No (0) Yes (1) CO-G
PG10 Type of fan DO (0) DO (0) AO (1) - CO-G PSd1 User level password (1) 0 -999 9999 - CO-G PSd2 Installer level password (2) 0 -999 9999 - CO-G PSd3 Manufacturer level password (3) 0 -999 9999 - CO-G
PF06
PF07
PF08
PF09
PF10
PF11
PS01
PS02 PS05 Delay of outside air damper end run 60 0 999 Sec CO-SE
Pr01 Anti-freeze temperature minimum setpoint 1.0 PH01 PH02
Pr02
Pr03
0: Disabled 1: Hot water coil only 2: Electric heater coil only Type of recovery heat exchanger by-pass damper control: 0: Digital Control (DO7) 1: Analogue Control (AO3)
Enabling of recovery heat exchanger anti­freeze protection Enabling of recovery heat exchanger by­pass in summer
FANS
Minimum time that must pass for the switch­on/off of each individual step of the fans Temperature setpoint of the fans for anti­freeze protection of the recovery heat exchanger Differential for anti-freeze protection of the recovery heat exchanger Minimum stand-by time before requesting switch-off of a further fan step Differential for the by-pass of the recovery unit damper in anti-freeze protection mode Fans working time in post-ventilation mode
OUTSIDE AIR DAMPER
This menu is only accessible if PG04=1 Fans switch-on delay from outside air damper activation Outside air damper switch-OFF delay from fans switch-off
RECOVERY HEAT EXCHANGER
Anti-freeze temperature minimum differential Recovery heat exchanger by-pass cycle time for cyclical defrosting
Disabled
(0)
AO (1) DO (0) AO (1) - CO-G
Type 1
(1)
No (0) No (0) Yes (1) CO-G
3 0 999 Sec CO-F
2.0 PH01 PH02
2.0 0.0
5 1 99 Min CO-F
2.0 0.0
30 0 999 Sec CO-F
45 0 999 Sec CO-SE Reading only
15 0 999 Sec CO-SE
2.0 0.0
5 1 99 Min CO-RH
Disabled
(0)
Not-active
(0)
Type 2 (2) - CO-G
Heaters
(2)
20.0
36.0
20.0
36.0
20.0
36.0
- CO-G
°C °F
°C °F
°C °F
°C °F °C °F
CO-F
CO-F
CO-F
CO-RH
CO-RH
Page 26
Code Parameter description Default Min Max UM Menu Notes
PA03
PA05 PA06 Delay of differential pressure switch alarm 10 0 999 Sec CO-S PA08
PA09 Anti-freeze alarm active on hot water coil PA10 Anti-freeze alarm delay on hot water coil 10 0 999 Sec CO-S PA12 Activates the heaters thermal switch alarm
PA13
PA16
PA17 Supply high temperature alarm setpoint 85.0 PH01 PH02
PA19 PA20 High/low temperature alarms delay 10 0 999 Sec CO-S
PA22 Expansion alarm delay 5 0 999 Sec CO-S PA24 RTC alarm enabling Active (1) PA26 Probes alarms signals delay 10 0 240 Sec CO-S
PH11 Board Modbus address 1 1 247 - CO-V
PH12
PH13 ModBus Parity (0=none, 1=Odd, 2=Even) 2 0 2 - CO-V PH14 Stop Bit ModBus (0=1bit, 1=2bit) 0 0 1 - CO-V PH40 Enable supply temperature probe No (01) No (0) Yes (1) - CO-V PH41 Enable return temperature probe No (0) No (0) Yes (1) - CO-V PH42 Enable CO2 probe (0-5V) No (0) No (0) Yes (1) - CO-V PH43 Enable outside air temperature probe No (0) No (0) Yes (1) - CO-V PH51 Logic of the digital input DI1 N.O. (0) N.O. (0) N.C. (1) - CO-V PH52 Logic of the digital input DI2 N.O. (0) N.O. (0) N.C. (1) - CO-V PH53 Logic of the digital input DI3 N.C. (1) N.O. (0) N.C. (1) - CO-V PH54 Logic of the digital input DI4 N.C. (1) N.O. (0) N.C. (1) - CO-V PH55 Logic of the digital input DI5 N.O. (0) N.O. (0) N.C. (1) - CO-V PH56 Logic of the digital input DI6 N.C. (1) N.O. (0) N.C. (1) - CO-V PH57 Logic of the digital input DI7 N.O. (0) N.O. (0) N.C. (1) - CO-V PH58 Logic of the digital input DI8 N.C. (1) N.O. (0) N.C. (1) - CO-V PH59 Logic of the digital input DI9 N.O. (0) N.O. (0) N.C. (1) - CO-V PH60 Logic of the alarm relay DO10 N.O. (0) N.O. (0) N.C. (1) - CO-V PH61 Logic of the alarm relay DO12 N.O. (0) N.O. (0) N.C. (1) - CO-V
PH80
Enabling of supply/return fans thermal overload alarm Enabling of differential pressure switch alarm
Signals differential pressure switch alarm on alarm relay
Signals heaters thermal overload alarm on alarm relay Enable supply high temperature alarm from temperature probe
Supply high/low temperature alarms differential
Communication Baud Rate for the board (0=1200, 1=2400, 2=4800, 3=9600, 4=19200)
CAN communication Baud Rate (20K, 50K, 125K, 500K)
Note: Once the unit parameters have been configured and at each modification of the configuration parameters it is recommended to switch OFF / switch ON the power supply to the board to make sure the configuration has been correctly updated.
ALARM PARAMETERS
VARIOUS PARAMETERS
Active (1)
Not-active
(0)
No (0) No (0) Yes (1) Sec CO-S
Not-active
(0)
Not-active
(0)
No (1) No (0) Yes (1) CO-S
Not-active
(0)
3.0
3 0 4 - CO-V
1 1 4 - CO-V
Not-active
(0)
Not-active
(0)
Not-active
(0)
Not-active
(0)
Not-active
(0)
0.0
0.0
Not-active
(0)
Active (1) - CO-S
Active (1) Sec CO-S
Active (1) Sec CO-S
Active (1) Sec CO-S
Active (1) CO-S
°C °F
20.0
36.0
Active (1) - CO-S
°C °F
CO-S
CO-S
Only if PG02=0
Only if PG02=1 Only if PG02=1
Page 27
5.2 COMPLETE solution list of configuration parameters
Code Parameter description Default Min Max UM Menu Notes
Level 1 USER MENU
USER
SPHM Supply temperature heating setpoint 22.0 PH01 PH02
SPHR Return temperature heating setpoint 20.0 PH01 PH02
PF02 Fans speed in manual regulation mode V3 V0 V3 UT
PSd1 User level password (1) 0 -999 9999 - UT
Level 2 INSTALLER MENU
CLOCK
PT01 Start of the COMFORT time period 10:00:00 00:00:00 23:59:59 - OR PT02 Start of the ECONOMY time period 16:00:00 00:00:00 23:59:59 - OR
PT11 Sunday
PT12 Monday
PT13 Tuesday
PT14 Wednesday
PT15 Thursday
PT16 Friday
PT17 Saturday
MAINTENANCE
Functioning hours maximum limit for fans.
PM01
PM02 Outlet fan functioning hours 0 0 100000 Hours IS-MA PM03 Return fan functioning hours 0 0 100000 Hours IS-MA
PM90
PM11
PM12
PM13
PM15
The relevant alarm will be triggered over this limit
Last date on which maintenance was performed on the machine Calibration of the anti-freeze air temperature probe Calibration of the outlet air temperature probe Calibration of the return air temperature probe Calibration of the outside air introduction temperature probe
0
Working 0 Working 1 Not Working
0
Working 0 Working 1 Not Working
0
Working 0 Working 1 Not Working
0
Working 0 Working 1 Not Working
0
Working 0 Working 1 Not Working
0
Working 0 Working 1 Not Working
0
Working 0 Working 1 Not Working
8000 0 100000 Hours IS-MA
IS-MA
0.0
0.0
0.0
0.0
-10.0
-18.0
-10.0
-18.0
-10.0
-18.0
-10.0
-18.0
10.0
18.0
10.0
18.0
10.0
18.0
10.0
18.0
°C °F °C °F
OR
OR
OR
OR
OR
OR
OR
°C °F °C °F °C °F °C °F
UT
UT
IS-MA
IS-MA
IS-MA
IS-MA
Only if PF01=0 (Manual Regulation)
Page 28
Code Parameter description Default Min Max UM Menu Notes
FANS
Type of fans regulation: 0: Manual
PF01
PF03 Fans speed in COMFORT period V2 V1 V3 - IS-F PF04 Fans speed in ECONOMY period V1 V0 V2 - IS-F
PF05 Fans speed in RTC error V0 V0 V3 - IS-F
PF12 PF13 Speed in case of « non working » day V0 V0 V3 - IS-F
PF14 Set point CO2 for Speed 1 and 2 500 PH03 PF15 ppm IS-F
PF15 Set point CO2 for Speed 2 and 3 1100 PF14 PH04 ppm IS-F PF21 Speed variator value corresponding to speed V1 33.50 0.00 100.00 % IS-F PF22 Speed variator value corresponding to speed V2 66.50 0.00 100.00 % IS-F PF23 Speed variator value corresponding to speed V3 100.00 0.00 100.00 % IS-F
Pb01
Pr04
Pr05
PA01 Enabling fans working hours alarm
PA02
PA04
PA07
PA11
PA15
PA21
PA23 PA25 Signals RTC alarm on alarm relay Yes (1) No (0) Yes (1) - IS-S
PA27 Signals probe alarms on alarm relay Yes (1) No (0) Yes (1) - IS-S
1: Automatic 2: Automatic with presence sensor 3: Automatic with CO2 sensor
Fans speed in COMFORT with presence sensor active
0 0 3 - IS-F
Only if PF01=1/2 /3
V3 V1 V3 - IS-F
Speed 1: CO2 < PF14 Speed 2: CO2 ≥ PF14 CO2 < PF15 Speed 3: CO2 > PF15
Only version with variator
HEATING COILS This menu is only accessible if PG02>0
Regulation probe for heating 0: Supply Probe 1: Return Probe
FREECOOLING
Outside air/recovery heat exchanger by­pass temperature set point in summer Return air/recovery heat exchanger by­pass temperature set point in summer
ALARM PARAMETERS
Signals working hours alarms on alarm relay Signals the supply/return fans thermal overload alarm on the alarm relay Differential pressure switch alarm delay on unit start-up Signals the coil anti-freeze alarm on the alarm relay Signalling of the outside air damper limit switch alarm on alarm relay Signalling of high/low temperature alarms on the alarm relay Signalling of expansion alarm on alarm relay
0 0 1 IS-B
15.0 PH01 PH02
22.0 PH01 PH02
Active
(1)
No (0) No (0) Yes (1) - IS-S
Yes (1) No (0) Yes (1) - IS-S
60 0 999 sec IS-S
Yes (1) No (0) Yes (1) - IS-S
Yes (1) No (0) Yes (1) IS-S
yes (1) No (0) Yes (1) IS-S
Yes (1) No (0) Yes (1) IS-S
Not-
active (0)
Active (1) - IS-S
°C °F °C °F
IS-FC
IS-FC
Only if PG02=1
Page 29
Code Parameter description Default Min Max UM Menu Notes
VARIOUS PARAMETERS
PH01 Minimum temperature value -15.0
PH02 Maximum temperature value 95.0 PH01 PH03 Minimum CO2 probe PPM value 0 0 PH04 ppm IS-V
PH04 Maximum CO2 probe PPM value 0 PH03 10000 ppm IS-V PH05 PH06 Enables unit switch-on/off from supervisor No (0) No (0) Yes (1) IS-V
PH18 Cancels the alarms log NO (0) NO (0) YES (1) - IS-V
PH20 Enable buzzer Yes (1) No (0) Yes (1) - IS-V
PH30
PH99 Reset the factory parameters default NO (0) NO (0) YES (1) - IS-D
PSd2 Installer level password (2) 0 -999 9999 - IS
Level 3 MANUFACTURER MENU
PG01 Enabling of expansion Yes (1) No (0) Yes (1) - CO-G
PG02
PG03
PG04 Outside air damper enabling Yes (1) No (0) Yes (1) - CO-G PG05 Enabling of post-ventilation Yes (1) No (0) Yes (1) - CO-G
PG06
PG08 PG09 Activation of outside air damper end run Yes (1) No (0) Yes (1) CO-G
PG10 Type of fan DO (0) DO (0) AO (1) - CO-G PSd1 User level password (1) 0 -999 9999 - CO-G PSd2 Installer level password (2) 0 -999 9999 - CO-G PSd3 Manufacturer level password (3) 0 -999 9999 - CO-G
Enables unit switch-on/off from “Start/Stop” digital input
Temperature unit of measurement 0: °Celsius 1: °Fahrenheit
CONFIGURATION PARAMETERS After modification of these parameters it is recommended to remove and then re-apply the power supply to the board.
Selection of type of device for heating: 0: Disabled 1: Hot water coil only 2: Electric heater coil only Type of recovery heat exchanger by-pass damper control: 0: Digital Control (DO7) 1: Analogue Control (AO3)
Enabling of recovery heat exchanger anti­freeze protection Enabling of recovery heat exchanger by-pass in summer
Yes (1) No (0) Yes (1) - IS-V
0 (°C) 0 (°C) 1 (°F) - IS-V
Heaters
(2)
DO (0) DO (0) AO (1) - CO-G
Type 1
(1)
Yes (1) No (0) Yes (1) CO-G
-20.0
-4.0
Disabled
(0)
Disabled
(0)
PH02
110.0
230.0
Heaters
(2)
Type 2
(2)
°C °F °C °F
- CO-G
- CO-G
IS-V
IS-V
Set YES (1) ad wait for the NO (0) value to be read again
Wait for the NO (0) value to be read again on reset completion
Page 30
Code Parameter description Default Min Max UM Menu Notes
FANS
PF06
PF07
PF08
PF09
PF10
PF11
Pb02
Pb03
Pb04
Pb05
Pb06
PS01
PS02 PS05 Delay of outside air damper end run 60 0 999 Sec CO-SE
Pr01 Anti-freeze temperature minimum setpoint 1.0 PH01 PH02
Pr02 Anti-freeze temperature minimum differential 2.0
Pr03
Minimum time that must pass for the switch­on/off of each individual step of the fans Fans temperature setpoint for anti-freeze protection of the recovery heat exchanger Fans differential for anti-freeze protection of the recovery heat exchanger Minimum stand-by time before requesting switch-off of a further fan step Fans differential regulation for the by-pass of the recovery unit damper in anti-freeze protection mode Fans functioning time in post-ventilation mode
HEATING COILS This menu is only accessible if PG02>0
Proportional band for PI regulation of the heating coil (water/electric)
Integral time for PI regulation of the heating coil (water/electric)
Hot water coil opening value in regulation probe error mode Heaters single stage insertion/release time for post-heating Number of electric heaters active during probe error mode.
OUTSIDE AIR DAMPER This menu is only accessible if PG04=1
Fans switch-on delay from outside air damper activation Outside air damper switch-on delay from fans switch-off
RECOVERY HEAT EXCHANGER
Recovery heat exchanger by-pass cycle time for cyclical defrosting
3 0 999 Sec CO-F
2.0 PH01 PH02
2.0
5 1 99 Min CO-F
2.0
30 0 999 Sec CO-F
10.0
0 0 999 Sec CO-B
0.0 0.0 100.0 % CO-B
60 0 999 Sec CO-B
1 0 3 CO-B
45 0 999 Sec CO-SE
15 0 999 Sec CO-SE
5 1 99 Min CO-RH
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
20.0
36.0
20.0
36.0
20.0
36.0
20.0
36.0
°C °F °C °F
°C °F
°C °F
°C °F °C °F
CO-F
CO-F
CO-F
CO-B
CO-RH
CO-RH
If Pb03=0 integral action not present
Used only if PG06=2
Page 31
Code Parameter description Default Min Max UM Menu Notes
PA03
PA05 Enabling of differential pressure switch alarm PA06 Delay of differential pressure switch alarm 10 0 999 Sec CO-S PA08
PA09 Anti-freeze alarm active on hot water coil PA10 Anti-freeze alarm delay on hot water coil 10 0 999 Sec CO-S PA12 Activates the heaters thermal overload alarm
PA13
PA16
PA17 Supply high temperature alarm setpoint 85.0 PH01 PH02
PA19 PA20 High/low temperature alarms delay 10 0 999 Sec CO-S
PA22 Expansion alarm delay 5 0 999 Sec CO-S PA24 RTC alarm enabling PA26 Probes alarms signals delay 10 0 240 Sec CO-S
PH11 Board Modbus address 1 1 247 - CO-V PH12 PH13 ModBus Parity (0=none, 1=Odd, 2=Even) 2 0 2 - CO-V
PH14 Stop Bit ModBus (0=1bit, 1=2bit) 0 0 1 - CO-V PH40 Enable outlet temperature probe Yes (1) No (0) Yes (1) - CO-V PH41 Enable return temperature probe Yes (1) No (0) Yes (1) - CO-V PH42 Enable CO2 probe (0-5V) No (0) No (0) Yes (1) - CO-V PH43 Enable outside air temperature probe Yes (1) No (0) Yes (1) - CO-V PH51 Logic of the digital input DI1 N.O. (0) N.O. (0) N.C. (1) - CO-V PH52 Logic of the digital input DI2 N.O. (0) N.O. (0) N.C. (1) - CO-V PH53 Logic of the digital input DI3 N.C. (1) N.O. (0) N.C. (1) - CO-V PH54 Logic of the digital input DI4 N.C. (1) N.O. (0) N.C. (1) - CO-V PH55 Logic of the digital input DI5 N.O. (0) N.O. (0) N.C. (1) - CO-V PH56 Logic of the digital input DI6 N.C. (1) N.O. (0) N.C. (1) - CO-V PH57 Logic of the digital input DI7 N.O. (0) N.O. (0) N.C. (1) - CO-V PH58 Logic of the digital input DI8 N.C. (1) N.O. (0) N.C. (1) - CO-V PH59 Logic of the digital input DI9 N.O. (0) N.O. (0) N.C. (1) - CO-V PH60 Logic of the alarm relay DO10 N.O. (0) N.O. (0) N.C. (1) - CO-V PH61 Logic of the alarm relay DO12 N.O. (0) N.O. (0) N.C. (1) - CO-V
PH80
Enabling of outlet/return fans thermal switch alarm
Signals differential pressure switch alarm on alarm relay
Signals heaters thermal switch alarm on alarm relay Enable supply high temperature alarm from temperature probe
Supply high/low temperature alarms differential
Communication Baud Rate for the board (0=1200, 1=2400, 2=4800, 3=9600, 4=19200)
CAN communication Baud Rate (20K, 50K, 125K, 500K)
ALARM PARAMETERS
VARIOUS PARAMETERS
Active
(1)
Active
(1)
Yes (1) No (0) Yes (1) Sec CO-S
Not-
active (0)
Active
(1)
Yes (1) No (0) Yes (1) CO-S
Active
(1)
3.0
Active
(1)
3 0 4 - CO-V
1 1 4 - CO-V
Not-
active (0)
Not-
active (0)
Not-
active (0)
Not-
active (0)
Not-
active (0)
0.0
0.0
Not-
active (0)
Active
(1)
Active
(1)
Active
(1)
Active
(1)
Active
(1)
20.0
36.0
Active
(1)
- CO-S
Sec CO-S
Sec CO-S
Sec CO-S
CO-S
°C °F °C °F
- CO-S
CO-S
CO-S
Only if PG02=0
Only if PG02=1 Only if PG02=1
Notes:The outside air return probes activation parameters, respectively PH41 and PH43 are conditioned by the state of the digital input that indicates the presence of the By-Pass damper (DI5). If the input confirms the presence of the By­Pass, the two parameters are active, otherwise they are deactivated. Any changes to the parameters are allowed, but any change in state of the digital input DI5 implies changes of the two parameters.
Once the machine parameters have been configured and at every modification of the configuration parameters, it is advised to remove and re-apply the power supply to the board to allow the control to configure itself correctly.
Page 32
6 REGULATIONS
6.1 State of the unit
There are several unit switch-on/off procedures:
1) Via the relevant ON/OFF key
Switch-ON: press the relevant key for about 2 seconds, if all the conditions are fulfilled the unit starts working (“ON” mode). Switch-OFF: press the relevant key for about 2 seconds, the unit stops working (“OFF” mode).
2) Using the Start/Stop from digital input control (parameter, PH05=1)
Switch-ON: close the contact, if all the conditions are fulfilled the unit starts working (“ON” mode). Switch-OFF: if the contact is open the unit stops working (“OFF from Start/Stop” mode).
3) Via Supervision protocol (parameter, PH06=1)
Switch-ON: activate the switch-on state from protocol, if all the conditions are fulfilled the unit starts working (“ON” mode). Switch-OFF: if deactivated by switch-on state protocol the unit stops working (“OFF from Supervisor” mode).
The ON/OFF status from key has priority with respect to the other two. In fact the ON/OFF states by digital input and supervision protocol can only be reached with machine in “ON” mode.
A machine switched-off by Start/Stop digital input can:
⋅ pass to the OFF state from key (by pressing ESC). ⋅ pass to the OFF state from supervisor if the OFF condition from digital input returns and the
OFF state is set by supervisor.
⋅ ass to the ON state if the ON condition from digital input returns and the OFF state is not set
by supervisor.
A unit switched-OFF by supervision protocol can:
⋅ Move to the OFF state by key (by pressing ESC key). ⋅ Move to the OFF state from digital input if the OFF condition from supervisor ceases and
the OFF state from digital input is triggered.
⋅ Move to the ON state if the OFF condition from supervisor ceases and the OFF state is not
present from digital input.
The unit ON/OFF key is the ESC key pressed for about 2 seconds. The remote Start/Stop input (when present) can be configured using the parameters:
- PH05: Enables the function
- PH52: Sets the NC, NO logic for the digital contact
Page 33
6.1.1 OFF state for alarm
When the machine is active and an heavy alarm occurs the unit switches into the OFF due to alarm status. In this case the unit and all devices are switched OFF and the dampers are completely closed
until the alarm condition has been reset. When the unit is OFF for alarm it is possible to switch to the other OFF states by means of the relevant digital input, key or supervisor. The alarms that cause the “OFF for alarm” are:
- Supply fan thermal overload alarm
- Return fan thermal overload alarm
- Differential pressure switch alarm
- Outdoor air Damper limit switch alarm
The unit recovers the normal working mode when the alarm has been reset.
6.2 RTC setting
When the board is disconnected from the mains for many days the RTC (Real Time Clock) system clock backup battery discharges. At the next connection to the mains the controller will display an RTC alarm. To get rid of it and allow a proper working condition the RTC has to be updated using the below mask:
Once the clock is configured, press OK to update the RTC and access the main page of the application. Confirmation by pressing OK also resets any clock alarm (AL16) as long as the alarm conditions are reset. If the alarm should not disappear switch OFF and back ON power supply to the board and manually reset the alarm.
6.3 Restore the (factory) default parameters
Via the “Parameters Reset” procedure it is possible to bring back the system parameters to the default value. The procedure can only be activated with machine in OFF mode Enter the Installer ->Various Parameters -> Default menu and press the ENTER key.
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Set the PH99 parameter to “YES”(1) and wait until it becomes “NO”(0) again on the display. The system automatically restores all parameters’ default values.
Note: After this operation switch OFF and back ON power supply to the board to prevent for malfunctioning.
6.4 Last maintenance operation date
From the Installer->Maintenance menu, press RIGHT until reaching the following mask:
Positioning the cursor on the “Update” writing and pushing the Enter key the old date relevant for the previous maintenance will be overwritten with the present date updating the PM90 parameter.
6.5 Programming key
It is possible to save the value of all system parameters into the programming key or upload them from the programming key. By means of this key is therefore possible also to copy the parameters from one device into one or more compatible ones. The saving or uploading operation can be carried out only with machine OFF, by connecting the key to the programming terminal.
To save a parameter list in the programming key:
- Enter the DEFAULT menu
- Move the cursor on EVKEY Save: OK and push the ENTER key. The
storage of the parameters into the key is shown by means of LED blinking.
- Wait the blinking to finish, if the LED becomes green the operation
was successful, otherwise the LED becomes red.
To copy a parameter list from the programming key into the device:
- Enter the DEFAULT menu
- Move the cursor on EVKEY Upload: OK and push the ENTER key.
The storage of the parameters into the device is shown by means of LED blinking.
- Wait the blinking to finish, if the LED becomes green the operation was
successful, otherwise the LED becomes red.
Note: The information to the product and relevant software version are saved in the key in order to allow the transfer of parameter maps only between compatible devices
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6.6 Functionality of the COMPACT control solution
This control solution offers the base functionality present also in the "complete" solution.
6.6.1 Supply and return fans
The program manages two fans, supply and return, independently with a 3 steps control logic. This can be achieved using 3 digital output or one analogue output to pilot a speed variator with 3 speed levels. The working is the same for both fan except for the case of Recovery heat exchanger antifreeze protection when the 2 fans are driven with different speeds. The regulation mode depends on the PF01 parameter which determines the 3 types of regulation:
• PF01=0 manual regulation
• PF01=1 automatic regulation without presence sensor
• PF01=2 automatic regulation with presence sensor
In ON/OFF regulation (parameter PG10=0) the 3 speeds (V1, V2, V3) are activated each by a dedicated relay. In regulation with speed variator inverter (parameter PG10=1) the three speeds are determined by the value defined by the parameters PF21, PF22 and PF23.
6.6.1.1 Manual regulation
The fans work at the MANUAL speed set via the PF02 parameter.
6.6.1.2 Automatic regulation without presence sensor
Two time periods are defined: ECONOMY time band and COMFORT time band. A working speed is defined for each time period, respectively ECONOMY speed (parameter PF04) and COMFORT speed (parameter PF03). The fans are controlled at the speed defined in the relevant time periods. The following parameters must be used
• PT01: start of COMFORT time band.
• PF03: fans speed in COMFORT band.
• PT02: start of ECONOMY time band.
• PF04: fans speed in ECONOMY band.
For each day of the week it is possible to define whether this day is a working or non-working day, parameters PT11=Sunday, PT12, PT13, PT14, PT15, PT16, PT17):
- Working days: the regulation is the normal automatic type for ECONOMY e COMFORT time period;
- Non-working days: the speeds are determined by parameter PF13, due to defect V0.
Note: If the RTC system clock is in alarm condition it is possible to set the PF05 parameter to determine at which speed both fans must function.
6.6.1.3 Automatic regulation with presence sensor
In addition to the previous regulation rules it is possible to modify the working speed on the basis of a presence sensor. If the presence sensor is active (indicating there is someone inside the room), during the COMFORT time band the fans speed is forced to the value set on parameter PF12.
6.6.1.4 Fans thermal overload
Via the digital inputs DI3/DI4 Supply/Return fans thermal overload protection it is possible to enable the thermal overload alarm of each fan. The alarms are signalled after a fixed delay of 2 seconds and have automatic reset. The alarms are enabled setting PA03=1. If this is not the case, the thermal overload alarms of the two fans are disabled. The activation of the thermal overload alarm switches OFF the unit bringing it to the OFF due to alarm status.
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6.6.1.5 Fans status
Each of the two fans can be in the following working states:
1. OFF: the fan is OFF.
2. ON V1: the fan is ON at speed 1.
3. ON V2: the fan is ON at speed 2.
4. ON V3: the fan is ON at speed 3.
5. Switch-ON stand-by: the fan is to be switched-on. Timing is in progress, e.g. stand-by due to
pre-start of the outside air damper. The status shows the switch-on stand-by for each of the individual speeds.
6. Switch-OFF stand-by: the fan is to be switched-off. Timing is in progress, e.g. in the case of
post-ventilation.
7. Alarm: the fan is in alarm conditions due to thermal overload.
Reaching of the individual speed in switch-ON can be delayed via the parameter PF06. If PF06=0 switch-ON/OFF is immediate.
6.6.1.6 Fans running hours
Each fan has an associated variable that counts the number of running hours (Supply fan parameter PM02, Return fan parameter PM03). The running hours can be zeroed by resetting the relevant parameter. If the running hours set in the PM01 parameter are exceeded, an alarm is given indicating fan running hours exceeded (alarms AL09, AL10).
6.6.2 Recovery heat exchanger anti-freeze protection
A probe measures the temperature T of the exhaust air after the recovery heat exchanger on the extraction circuit. The critical defrosting temperature Tg (can be set by parameter PF07) is fixed by default at 0 °C. Considering the risk of frost in the recovery heat exchanger when T ≤ Tg it is necessary to take some action for protecting the exchanger when this temperature level is reached. To use this function the PG06 parameter must be enabled (by default it is always enabled). There are two possible strategies depending on the presence of the by-pass damper (stated by the state of the dedicated digital input which polarity is determined by the PH55 parameter). The two antifreeze strategies are described in the following paragraphs.
Note: If the anti-freeze temperature probe is in error conditions, this regulation is not enabled and the fans are regulated exclusively on the basis of the PF01 parameter.
6.6.2.1 Unit without By-pass damper (digital contact not active)
In this case the action taken for anti-freeze purpose is decreasing the fan speeds with a neutral zone control.
Fan speed decrease every ∆t
Tg
When T ≤ Tg, the outlet fan speed will decrease progressively (V3-V2-V1) until stopping (V0). If this condition occurs and remains for a time ∆t (time set by parameter PF09) the speed reduction takes place, every
∆t there is a further decrease until the supply fan switches OFF.
Neutral
Zone
Tg + Tdiff
Normal Working
T. Anti-freeze
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Tg - TdiffByPass
OFF
ON
If the temperature T is between Tg and Tg + Tdiff (default 3°C, can be modified by parameter PF08) the current speed is maintained. Only when the temperature T becomes T ≥ Tg + Tdiff the fan speed returns to the normal condition (i.e. at the speed set by the user).
6.6.2.2 Unit with motorised By-pass (digital contact excited)
Same behaviour as in the previous case with speed reduction but never down to zero in order to allow the air flow through the recovery heat exchanger before being eject. As the exhaust air is warmer than the outside air the heat exchanger is “defrosted”. When the supply fan is at minimum speed and the low temperature situation still remains for ∆t minutes, the fan does not switch off but there’s a particular activation strategy of the recovery heat exchanger By-Pass damper:
• When T ≤ Tg - TdiffByPass (default 2°C, can be modified by PF10 parameter): opening of
the By-pass damper
• When T ≥ Tg + TdiffByPass: closure of the By-pass damper.
Damper By-Pass
Tg + TdiffByPass
T. Anti-freeze
The return to normal working condition (speed selected by the user and By-Pass closed) takes place only when T ≥ Tg + Tdiff (default 2°C, can be modified by PF08 parameter).
6.6.2.3 Recovery heat exchanger by-pass damper logic
The by-pass damper can be controlled using a digital signal or an analogue signal, it must be configured setting the PG03 parameter from the manufacturer menu.
PG03=0
The damper is managed with a digital control via the DO7 relay. When the relay is not active the damper is closed while when the relay is active the damper is open and the recovery heat exchanger is by-passed.
PG03=1
The damper is managed with an analogue control via the analogue output AO3. When 0% the damper is closed, while when 100% the damper is open and the recovery heat exchanger is by­passed.
6.6.3 Cross flow recovery heat exchanger and by-pass damper
The recovery heat exchanger to be used is the cross flow static type. The anti-freeze by-pass damper can be present in the unit (optional, the presence is determined by the status of digital input 5). This damper allows the unit to work with very low outside air temperatures (e.g. –10 / -12°C) preventing the moisture of the ejected air to condensate and freeze inside the heat exchanger (which would cause the obstruction of air flow up to complete block). The anti-freeze temperature probe identifies the freezing temperature and drives the fan speed decrease and the activation of the recovery heat exchanger by-pass damper. The recovery heat exchanger is normally active and is by-passed (opening the by-pass damper) only during free-cooling (if present and enabled) and during cyclical defrosting when outside temperature is too low. To activate this function set PG06 = 2
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Pr01: Setpoint
OFF
Pr02: Diff.
ON
OFF
ON
OFF
ON
Pr03 Pr03
T. Anti
-
freeze
6.6.3.1 Cyclical defrosting with minimum temperatures
The set point must be determined along with its differential for the activation of the defrosting cycle.
T. Anti-freeze
When the anti-freeze minimum temperature condition is reached a cyclical by-pass sequence of the recovery heat exchanger is activated to allow the exhaust air (warmer, from the room) to defrost the recovery heat exchanger air channels as shown in the below diagram.
Exhaust air minimum temperature
By-Pass damper
After the (parameter Pr03) delay the by-pass damper is activated to allow defrosting. As soon as the exhaust air temperature is back above the accepted value the damper is deactivated and the recovery heat exchanger starts again.
Note: If the anti-freeze probe is in alarm condition the function is disabled.
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6.7 Features of the COMPLETE control solution
Al functions of the COMPACT version are included in this version. Below are listed only the additional features of the COMPLETE control solution.
6.7.1 Post-Ventilation
By setting the parameter PG05=1 it is possible to decide whether to run the fans for a time configured on parameter PF11, also after unit switch-OFF. If the function is active when the unit stops the fans keep working for further PF11 seconds.
6.7.2 Differential pressure switch
The lack of air flow is signalled via the DI6 Differential Pressure switch digital input. The pressure switch status is considered after the initial start-up phase of the unit (the length of this phase is configured by parameter PA06). On expiry of this time if the contact signals a lack of air flow the alarm is signalled immediately. During normal working the differential pressure switch is monitored continuously. If the contact signals a lack of flow for a period exceeding the PA06 parameter, the alarm is signalled immediately.
Unit
ON
OFF
Air Flow
ON
Alarm
ON
PA06
PA06
PA06
To enable the alarm, set PA05=1. The differential pressure switch alarm has manual reset. Activation leads to switch-off of the unit taking it into the OFF due to alarm status.
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SPHM: Set Point
0%
Supply Temp.
Pb02: Diff
100%
6.7.3 Fresh air intake damper
It is possible to manage an optional motorised damper (can be enabled by parameter PG04=1) for fresh air intake purpose. The damper is managed via ON/OFF (digital) activation. The damper can be either fully open or fully closed, modulation is not possible as well as a minimum opening. When the fans are requested to start first the damper is opened and, after a delay configured on parameter PS01, the fans are activated too. When the fans are switched OFF the damper is kept open for a time configured on parameter PS02.
6.7.3.1 Fresh air intake damper limit switches
In order to have a feedback about the real status of the damper (fully open or fully closed) the digital inputs DI9 and DI10 are connected to the damper’s “fully open” and “fully closed” limit switches. Every time the damper is requested to change its status it is verified that both limit switches change their status within the expected time frame (defined on parameter PS05). If during this time the states of both digital inputs change this means everything is working fine. If this is not the case the AL06 alarm with manual reset is generated and the unit is brought to the “OFF due to alarm” status.
6.7.4 Heating
The COMPLETE solution offers the possibility to use a hot water coil or a set of three electric heaters for space heating purpose. By setting the PG02 parameter the desired resource is activated along with the relevant alarms connected. For using this function it is necessary to enable the supply temperature probe setting PH40=1. During the anti-freeze protection of the recovery heat exchanger, on units without by-pass, the heating source must be deactivated for protection. The heating source is disabled with a delay defined at the parameter PF09 after the fan speed has reduced to V1 during the supply fan speed decrease for antifreeze protection. If the antifreeze condition remains active for further PF09 the supply fan is stopped.
6.7.4.1 Heating with hot water coil
To use the hot water coil for space heating it is required to set the parameter PG02=1. The control is based on the supply temperature via a supply Set Point (SPHM parameter) and a relevant differential (Pb02 parameter). The coil is controlled via a proportional-integral algorithm (PI). The control can be only proportional by setting the integral time Pb03=0.
In case the control probe has an alarm condition it is possible to decide the opening percentage of the coil valve during alarm setting the Pb04 parameter. If Pb04 = 0.0% in probe error condition the valve remains closed.
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1st heater
Pb02
2nd heater
3rd heater
SPHM: Outlet Setpoint
Anti-freeze safety on hot water circuit (AL04)
The anti-freeze mechanical thermostat (digital input DI7) is mounted downstream the coil either inside or outside the pipe. On its intervention (voltage free contact closure on controller digital input), the controller carries out the following steps: a) Open the 3-way valve completely (hot water) b) Close the fresh air damper c) Stop the fans This alarm is enabled by setting PA08=1 and is only active if the hot water coil is enabled (PG02=1). The alarm is signalled after a set delay (parameter PA09) and is reset automatically.
6.7.4.2 Heating with electric heaters (3 stages)
To use the electric heaters for space heating purpose it is necessary to set the parameter PG02=2. The control is based on the supply temperature via a supply Set Point (SPHM parameter) and a relevant differential (Pb02 parameter.
Supply Temperature
Between following activation / de activation of the heaters a delay has been implemented (parameter Pb05) in order to prevent for simultaneous current peaks. In case the control probe has an alarm condition it is possible to decide the number of heaters to be activated during the the alarm by setting the Pb06 parameter. If Pb06=0 in probe error condition no heater is active.
Heaters thermal overload alarm
Via the DI8 (Electric heaters thermal overload protection) digital input it is possible to activate the heaters thermal overload alarm. On occurrence of this alarm the heaters are immediately switched OFF. The alarm is signalled after a fixed delay of 2 seconds and is reset automatically. The alarm is enabled by setting PA12=1. The alarm can be enabled only if the heaters are configured (PG02=2).
6.7.4.3 Heaters status
Each of the three heaters can assume one out the following status:
1. Disabled: the heater is not managed by control.
2. Off: the heater is not active.
3. In switch-ON stand-by: the heater is about to switch-ON, it is in stand-by due to protection
times.
4. In switch-OFF stand-by: the heater is about to switch-off, it is in stand-by due to protection
times.
5. On: the heater is active.
6. Alarm: the heater is blocked due to the relevant thermal overload alarm.
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6.7.4.4 Heaters over temperature protection with automatic reset
By setting the parameter PA16=1(high temperature) it is possible to decide whether to use the supply high temperature alarms or not. The following parameters must be configured in order to use these alarms:
- PA17 = Automatic reset over temperature protection Set Point
- PA19 = Temperature alarm differential
- PA20 = Temperature alarm activation delay The alarms are signalled after the PA20 delay time have automatic reset. The alarms are disabled in case of alarm condition on the supply temperature probe. These alarms can only be activated with the unit running.
6.7.5 Heat exchanger by-pass in summer mode (Free-Cooling)
During summer cycle, when the outside temperature is low enough it is possible to take advantage of the outside air for cooling down the internal ambient by means of the by-pass damper. Set PG08=1 to enable this function. This function uses the outside air temperature probe (TExt) and the return temperature probe (TInt). When TExt ≥ Tke (default 15 °C, it can be modified by parameter Pr04) and return temperature TInt ≥ Tki (default 22 °C, it can be modified by parameter Pr05) and if TExt ≤ TInt the function is active and opens the heat exchanger by-pass damper.
Note: To use this function the outside and return temperature probes must be enabled, respectively PH43=1 and PH41=1. If one of the two probes is in error condition the function is disabled.
6.7.6 Modulation of the air flow with CO2 probe
This function is enabled by setting PF01=3 and can be enabled only during COMFORT time bands. In this configuration the fan speed control is based on the value sensed by the CO2 probe. The fans speed depend on the value set on parameters PF14, PF15 which indicate the set for CO2 concentration for each of the three speeds. In this state the minimum speed is V1.
Example. Parameters default
CO2 probe
0V -> PH03 = 100 ppm
5V -> PH04 = 1100 ppm
Fans
PF14 = 500 and PF15 = 1500 ppm. Speed 1 for measured value < 500 ppm Speed 2 for measured value between 500 ppm (included) and 1500 ppm Speed 3 for measured value ≥ 1500 ppm
Note: To use this function the CO2 probe must be enabled (parameter PH42=1) along with the relevant linearisation values (parameters PH03 and PH04). If the RTC clock is in error condition it is possible to set parameterPF05 which defines the fans speed in this condition.
6.7.7 Heating control depending on Return Air Temperature
It is possible to decide whether to control the space heating (by means of hot water coil or electric heaters) depending on the return ait temperature instead of on the supply air temperature (Pb01=0). To use this function set Pb01=1 and also set the SPHR parameter indicating the value of the regulation set point on the return air temperature. To use of this the return air temperature probe must be enabled (PH41=1).
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7 DIAGNOSTICS
The application can manage a series of alarms relevant to the fans and the devices configured. Depending on the various types of alarm it is possible to configure a manual or automatic reset, a possible delay and the actions to carry out in the specific case.
When one or more alarms are active the alarm icon on the main page flashes, if configured (PH20=1) and only with the machine ON the buzzer is also activated. To display the alarms, select ALARMS on the general menu or press ESC from the main page and then select “Show ALARMS >>”. If the ESC key is pressed on an alarm page or you wait 60 seconds for timeout, go back to the main page of the application. To scroll through the various active alarms, press ENTER again: the alarms are presented in the order of priority, as they are listed in the alarms table. To silence the buzzer, press the vGRAPH1 down key for about 2 seconds.
7.1 Manual and automatic reset alarms
As shown previously there are two types of alarm. Those with manual reset and those with automatic reset. For some alarms it is possible to set (Alarms Reset) the most suitable type of reset for user needs by means of the relevant parameters. Other alarms have predetermined reset type.
7.1.1 Manual reset alarms
If a manual rest alarm occurs the alarm icon starts to flash and the buzzer is activated (if configured PH20=1). Once the conditions for which the alarm has occurred are reset it is possible to manual reset the alarm. To perform this operation:
⋅ Enter the relevant alarm page ⋅ hold the ENTER key down for about 2 seconds.
At this point, if there are no other active alarms, the page indicating “NO ALARMS” will be displayed, the icon disappears, the buzzer switches off and the unit starts working normally. If there are other active alarms the page relevant to the next active alarm will be displayed. The consequences relevant to an active manual reset alarm remain valid until the user reset the alarm message.
7.1.2 Automatic reset alarms
If an automatic reset alarm occurs the alarm icon starts to flash and the buzzer is activated (if configured PH20=1). Once the conditions for which the alarm occurred are reset the alarm message and the relevant consequences are reset automatically without need of user intervention.
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7.2 Alarms table
Below is a list of all alarms managed by the application. The order of presentation is the same as the order of active alarms occurrence. The alarms can be displayed also with the machine in OFF status.
Code Alarm description Reset Consequence Delay
AL01 Supply fan thermal overload AL02 Return fan thermal overload AL03 Differential pressure switch
AL04 Hot water coil anti-freeze Automatic
AL05
AL06
AL07 AL09 Supply fan running hours Manual
AL10 Return fan running hours Manual AL11 Anti-freeze temperature probe Automatic Inhibits the relevant control Selectable AL12 Supply air temperature probe Automatic Inhibits the relevant control AL13 Return air temperature probe Automatic Inhibits the relevant control AL14 CO2 probe Automatic Inhibits the relevant control AL15 Outdoor intake air temperature probe Automatic Inhibits the relevant control
AL16 RTC broken or battery discharged alarm Manual
AL17 Expansion communication alarm Automatic
Electric heaters thermal overload – manual reset Outside air damper limit switch “completely
(*1)
open” Outside air damper limit switch “completely closed” Electric heaters thermal overload – automatic reset
(*1) These alarms cause the unit to switch OFF (OFF due to alarm status) (*2) To reset the alarms linked to running hours just reset the device hours.
(*1)
(*1)
Automatic Switches all devices off Fixed 2 s
(*1)
Automatic Switches all devices off Fixed 2 s
(*1)
Manual Switches all devices off Selectable
- Open the hot water valve
completely
- Close the fresh air damper
- Switches fans OFF
Manual Switches the heaters OFF Fixed 2 s
Manual Switches all devices off Selectable
Automatic Switches the heaters OFF Selectable
(*2)
Signalling only -
(*2)
Signalling only -
Inhibits the control depending on RTC Switches OFF the devices connected to the expansion
Selectable
Selectable Selectable Selectable Selectable
-
-
7.3 General alarm relay
The controller manages a configurable alarm relay. For each alarm there is a parameter which selects whether that alarm must be signalled on the alarm relay. Several alarms can be addressed to the relay. Via the relevant parameter (PH61) it is possible to establish the polarity (NO, or NC) of the alarm relay.
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7.4 Alarms log
The controller record the ALARMS LOG in a non-volatile area of the memory organised as FIFO (First In First Out), that is a list of the last 100 alarms occurred. To display the alarms log, select LOG from the General menu or press ESC from the main page to display this page:
Move the cursor on “Show HISTORIAN>>>” and push the Enter key. The alarms log screen will be displayed:
Each element of the log has the following information associated:
- Alarm running number
- Alarm mnemonic code (AL01, AL03, …)
- Alarm occurrence date and time
- A possible value associated to the alarm
The alarm mnemonic code is the one shown in the alarms table. The log can hold 100 events.
Via the PH18 (Delete alarms log) parameter it is possible to cancel all the alarms stored in the log. Set the parameter at SI (1) and wait a few seconds for the NO (0) default value to be read again.
Note 1: The storing in the log of an alarm beyond the maximum number allowed (100) means the first alarm of the log is overwritten.
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8 MODBUS VARIABLES
The controller can be managed by a supervisor via Modbus protocol. The communication takes place via optional TTL/RS485 serial interface outside the controller. The various states/parameters exported from the controller are shown below.
8.1 ModBus exporting table
Addr
Base 0
0x0100 257 Packed_DI 0 0 65535
0x0180 385 Packed_DO 0 0 65535
0x0200 513 AI01_Antireeze_Probe 0.0 -3276.8 3276.7 R/O 0x0201 514 AI02_AirSupply_Probe 0.0 -3276.8 3276.7 R/O 0x0202 515 AI03_AirReturn_Probe 0.0 -3276.8 3276.7 R/O 0x0203 516 AI04_CO2_Probe 0 -32768 32767 R/O 0x0204 517 AI05_AirExternal_Probe 0.0 -3276.8 3276.7 0x0281 642 AO_ByPassRecover 0.00 0.00 100.00 R/W 0x0282 643 inverterFan_Return 0.00 0.00 100.00 R/W
Addr
Base
1
Name Value Min Max Description Mode
Bit1=DI1, Bit2=DI2, Bit3=DI3, ..., Bit13=DI13, Bit14=DI14
Bit1=DO1, Bit2=DO2, ..., Bit13=DO13, Bit14=DO14
Only Complete Version
R/W
R/W
R/O
0x0283 644 inverterFan_Supply 0.00 0.00 100.00 R/W
0x0284 645 AO_HeatingCoilRequest 0.00 0.00 100.00
0x0300 769 PackedAlarm_1 0 0 65535
0x0301 770 PackedAlarm_2 0 0 65535
Only Complete Version
Bit1=AL01, Bit2=AL02, Bit3=AL03, Bit4=AL04, Bit5=AL05, Bit6=AL06, Bit7=AL07, Bit8=free, Bit9=AL09, Bit10=AL10, Bit11=AL11, Bit12=AL12, Bit13=AL13, Bit14=AL14, Bit15=AL15, Bit16=AL16
Bit1=AL17, Bit2=AL18, Bit3=AL19,
R/W
R/W
R/W
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0x0400 1025 Status_OnOff_bySUP 0 0 1 R/W 0x0500 1281 CLOCK_RTC ( Low ) 0 0 2147483647 R/W 0x0501 1282 CLOCK_RTC ( High ) 0x0502 1283 StatusUnit 0 0 5 R/W 0x0503 1284 UI_MainLabelDown 0 0 7 R/W
0x0504 1285 Status_SupplyFan 0 0 9
Bit4=AL20, Bit5=AL21, Bit6=AL22, Bit7=AL23, Bit8=Free, Bit9=AL25, Bit10=AL26, Bit11=AL27, Bit12=AL28, Bit13=AL29
0=Disabilitato, 1=OFF, 2=Wait ON, 3=ON, 4=Wait OFF, 5=ALL, 6=Manual
R/W
0=Disabilitato,
0x0505 1286 Status_ReturnFan 0 0 9
0x0506 1287 UI_byPassAntiFreeze 0 0 1 R/W 0x0507 1288 Status_FreshAir 0 0 5 R/W 0x0508 1289 byPassRecover_Summer 0 0 1 0x0509 1290 Status_Heater1 0 0 5 R/W
0x050A 1291 Status_Heater2 0 0 5 R/W
0x050B 1292 Status_Heater3 0 0 5
0x050C 1293 active_ProbeHeating 0.0 -3276.8 3276.7 R/O 0x050D 1294 active_SetPointHeating 0.0 -20.0 230.0 R/W 0x050E 1295 active_HeatingCapacity 0.00 0.00 100.00
0x0606 1543 SPHR_SetPoint_Return 20.0 -20.0 230.0 R/W 0x0607 1544 SPHM_SetPoint_Supply 22.0 -20.0 230.0 R/W
1=OFF, 2=Wait ON, 3=ON, 4=Wait OFF, 5=ALL, 6=Manual
Only Complete Version
Only Complete Version
0=Disabilitato, 1=OFF, 2=Wait ON, 3=ON, 4=Wait OFF, 5=ALL
Only Complete Version
R/W
R/W
R/W
R/W
0x0608 1545 PT01_Start_Confort_TB ( Low ) 28800 0 86399 R/W
0x0609 1546 PT01_Start_Confort_TB ( High ) 0x060A 1547 PT02_Start_Economy_TB ( Low ) 72000 0 86399 R/W 0x060B 1548 PT02_Start_Economy_TB ( High )
0x060C 1549 PT11a17_TypeDay[0] 0 0 1
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0=Sunday,.. 6=Saturday
R/W
0x060D
0x060E 1551 PT11a17_TypeDay[2] 0 0 1
0x060F 1552 PT11a17_TypeDay[3] 0 0 1
0x0610 1553 PT11a17_TypeDay[4] 0 0 1
0x0611 1554 PT11a17_TypeDay[5] 0 0 1
0x0612 1555 PT11a17_TypeDay[6] 0 0 1
0x0613 1556 PM01_Limit_HourFan ( Low ) 8000 0 100000 R/W
0x0614 1557 PM01_Limit_HourFan ( High )
0x0615 1558 PM11_Calibration_AntiFreezeProbe 0.0 -18.0 18.0 R/W
0x0616 1559 PM12_Calibration_AirSupplyProbe 0.0 -18.0 18.0 R/W
0x0617 1560 PM13_Calibration_AirReturnProbe 0.0 -18.0 18.0 R/W
1550 PT11a17_TypeDay[1] 0 0 1
0=Sunday,.. 6=Saturday
0=Sunday,.. 6=Saturday
0=Sunday,.. 6=Saturday
0=Sunday,.. 6=Saturday
0=Sunday,.. 6=Saturday
0=Sunday,.. 6=Saturday
R/W
R/W
R/W
R/W
R/W
R/W
0x0618 1561 PM14_Calibration_CO2_Probe 0 -200 200 R/W
0x0619 1562 PM15_Calibration_AirExternalProbe 0.0 -18.0 18.0 R/W 0x061A 1563 PM02_SupplyFan_Hours ( Low ) 0 0 100000 R/W 0x061B 1564 PM02_SupplyFan_Hours ( High ) 0x061C 1565 PM03_ReturnFan_Hours ( Low ) 0 0 100000 R/W 0x061D 1566 PM03_ReturnFan_Hours ( High ) 0x061E 1567 PM90_LastMaintainDATE ( Low ) 252460801 299721601 2147483647 R/W
0x061F 1568 PM90_LastMaintainDATE ( High )
0=Continue, 1=Auto,
0x0620 1569 PF01_FanRegulationType 0 0 3
0x0621 1570 PF02_SpeedFan_ManualReg 3 0 3 R/W
0x0622 1571 PF03_SpeedFan_Confort 2 1 3 R/W
0x0623 1572 PF04_SpeedFan_Economy 1 0 2 R/W
2=Auto with DI, 3=CO2 Probe (Only Complete Version)
R/W
0x0624 1573 PF05_SpeedFan_ErrorRTC 0 0 3 R/W
0x0625 1574 PF06_MinTimeOnStepsFan 3 0 999 sec R/W
0x0626 1575 PF07_SetPointAntiFreeze 2.0 -20.0 273.0 R/W
0x0627 1576 PF08_DiffAntiFreeze 2.0 0.0 20.0 R/W
0x0628 1577 PF09_DeadZoneOutsideTime 5 1 99 Minute R/W
0x0629 1578 PF10_DiffByPassAntiFreeze 2.0 0.0 20.0 R/W
Page 49
0x062A 0x062B 1580 PF12_SpeedFan_Confort_DI 3 1 3 R/W 0x062C 1581 PF13_SpeedFan_WeekEnd 0 0 3 R/W 0x062D 1582 PF14_SetCO2_FanSpeed1_2 500 0 10000 R/W 0x062E 1583 PF15_SetCO2_FanSpeed2_3 1100 0 10000 R/W
0x062F 1584 PF21_AOValue_Speed1 33.50 0.00 100.00 R/W
0x0630 1585 PF22_AOValue_Speed2 66.50 0.00 100.00 R/W
0x0631 1586 PF23_AOValue_Speed3 100.00 0.00 100.00 R/W
0x0632 1587 Pb01_HeatRegulationProbe 0 0 1 R/W
0x0633 1588 Pb02_HeatingDiff 10.0 0.0 36.0 R/W
0x0634 1589 Pb03_HeatingCoil_Ti 0 0 999 R/W
0x0635 1590 Pb04_ForceHeat_OnErrorProbe 0.00 0.00 100.00 R/W
0x0636 1591 Pb05_HeaterOnOffDelayTime 60 0 999 R/W
0x0637 1592 Pb06_HeaterOnErrorProbe 0 0 3 R/W
0x0638 1593 PS01_PreStartTime_Fresh_Fan 45 0 65535 R/W
1579 PF11_MinTimePostFan 30 0 999 sec R/W
0x0639 1594 PS02_DelayOFF_Fresh 15 0 65535 R/W 0x063A 1595 PS05_LimitSwitch_WaitTime 60 0 999 R/W 0x063B 1596 Pr01_SetPoint_MinTemp_HeatRecover 1.0 -20.0 230.0 R/W 0x063C 1597 Pr02_Diff_MinTemp_HeatRecover 2.0 0.0 36.0 R/W 0x063D 1598 Pr03_TimeByPass_Recover 5 1 99 Minute R/W 0x063E 1599 Pr04_SetPointExt_ByPassSummer 15.0 -20.0 230.0 R/W
0x063F 1600 Pr05_SetPointRet_ByPassSummer 22.0 -20.0 230.0 R/W
0x0640 1601 PA01_En_Alarm_HourFan 1 0 1 R/W
0x0641 1602 PA02_HourFanAlarm_Rele 0 0 1 R/W
0x0642 1603 PA03_EnableThermalFanAlarm 1 0 1 R/W
0x0643 1604 PA04_ThermalFanAlarm_Rele 1 0 1 R/W
0x0644 1605 PA05_En_AirFlowPressSwitch 1 0 1 R/W
0x0645 1606 PA06_AlarmAirFlowSwitchDelay 10 0 999 R/W
0x0646 1607 PA07_AlarmAirFlowSwitchDelay_StartUp
0x0647 1608 PA08_PressSwitchAlarm_Rele 1 0 1 R/W
60 0 999 R/W
0x0648 1609 PA09_EnableAntiFreezeCoil 0 0 1 R/W
0x0649 1610 PA10_DelayAlarm_AntiFreezeCoil 10 0 999 R/W 0x064A 1611 PA11_AntiFreezeCoilAlarm_Rele 1 0 1 R/W 0x064B 1612 PA12_EnableThermalResistor 1 0 1 R/W
Page 50
0x064C 0x064D 1614 PA15_LimitSitwchAlarm_Rele 1 0 1 R/W 0x064E 1615 PA16_EnHighTempAlarm 1 0 1 R/W
0x064F 1616 PA17_SetPointHT 85.0 -20.0 230.0 R/W
0x0650 1617 PA19_Diff_TempAlarm 3.0 0.0 36.0 R/W
0x0651 1618 PA20_TempAlarmDelay 10 0 999 R/W
0x0652 1619 PA21_LT_HT_Alarm_Rele 1 0 1 R/W
0x0653 1620 PA22_ExpansionDelayAlarm 5 0 999 R/W
0x0654 1621 PA23_ExpAlarm_Rele 1 0 1 R/W
0x0655 1622 PA24_EnableAlarmRTC 1 0 1 R/W
0x0656 1623 PA25_RTCAlarm_Rele 1 0 1 R/W
0x0657 1624 PA26_AlarmProbe_Delay 10 0 240 R/W
0x0658 1625 PA27_ProbeAlarm_Rele 1 0 1 R/W
0x0659 1626 PH01_MinTempValue -15.0 -20.0 230.0 R/W 0x065A 1627 PH02_MaxTempValue 95.0 -20.0 230.0 R/W
1613 PA13_ThermalResistorAlarm_Rele 1 0 1 R/W
0x065B 1628 PH03_MinPPM_CO2 0 0 10000 R/W 0x065C 1629 PH04_MaxPPM_CO2 1100 0 10000 R/W 0x065D 1630 PH05_Enable_OnOffByDI 1 0 1 R/W 0x065E 1631 PH06_Enable_OnOffBySuperv 0 0 1 R/W
0x065F 1632 PH11_Modbus_Address 1 1 247 R/W
0x0660 1633 PH12_Modbus_Baud 3 0 4 R/W
0x0661 1634 PH13_Modbus_Parity 2 0 2 R/W
0x0662 1635 PH14_Modbus_StopBit 0 0 1 R/W
0x0663 1636 PH18_HistoryReset 0 0 1 R/W
0x0664 1637 PH20_EnableBuzzer 1 0 1 R/W
0x0665 1638 PH30_TemperatureHR 0 0 1 R/W
0x0666 1639 PH40_EnableAirSupplyProbe 1 0 1 R/W
0x0667 1640 PH41_EnableAirReturnProbe 1 0 1 R/W
0x0668 1641 PH42_EnableCO2Probe 1 0 1 R/W
0x0669 1642 PH43_EnableAirExternalProbe 1 0 1 R/W 0x066A 1643 PH51_Logic_DI1 0 0 1 0=NO, 1=NC R/W 0x066B 1644 PH52_Logic_DI2 0 0 1 0=NO, 1=NC R/W 0x066C 1645 PH53_Logic_DI3 1 0 1 0=NO, 1=NC R/W 0x066D 1646 PH54_Logic_DI4 1 0 1 0=NO, 1=NC R/W
Page 51
0x066E 1647 PH55_Logic_DI5 0 0 1 0=NO, 1=NC R/W
0x066F 1648 PH56_Logic_DI6 1 0 1 0=NO, 1=NC R/W
0x0670 1649 PH57_Logic_DI7 0 0 1 0=NO, 1=NC R/W
0x0671 1650 PH58_Logic_DI8 1 0 1 0=NO, 1=NC R/W
0x0672 1651 PH59_Logic_DI9 0 0 1 0=NO, 1=NC R/W
0x0673 1652 PH60_Logic_DI10 0 0 1 0=NO, 1=NC R/W
0x0674 1653 PH61_Logic_DO_Alarm 0 0 1 R/W
0x0675 1654 PH80_CAN_BaudRate 1 1 4
0x0676 1655 PH99_RestoreDefault 0 0 1 R/W
0x0677 1656 PG01_EnableExpansion 1 0 1 R/W
0x0678 1657 PG02_HeatingType 2 0 2
0x0679 1658 PG03_ByPassDamper_Type 0 0 1 0=DO7, 1=AO3 R/W 0x067A 1659 PG04_Enable_FreshAir_Shutter 1 0 1 R/W 0x067B 1660 PG05_EnablePostVentilation 1 0 1 R/W 0x067C 1661 PG06_EnableAntiFreezeType 1 0 2 R/W 0x067D 1662 PG08_Enable_ByPassRecover_Summer 1 0 1 R/W 0x067E 1663 PG09_EnableLimitSwitch_FreshAir 1 0 1 R/W
0x067F 1664 PG10_FanType 0 0 1 R/W
0x0680 1665 PSd1_UserPassword 0 -999 9999 R/W
0x0681 1666 PSd2_InstallerPassword 0 -999 9999 R/W
0x0682 1667 PSd3_ManufacturerPassword 0 -999 9999 R/W
1=20k ,2=50k, 3=125k, 4=500k
0=Disable, 1=Coil, 2=Resistor
R/W
R/W
Page 52
Application manual C-PRO MICRO SAVE Version 1.01 of November 2010 Code 144SAVEU0E01.
This publication is exclusive property of Evco, which prohibits reproduction and distribution,, unless expressly authorised by Evco itself. Evco does not assume any liability regarding the features, technical data and possible errors in this document or deriving from use of the same. Evco cannot be held responsible for any damage caused by the failure to comply with the warnings. Evco reserves the right to make any modifications at any time without jeopardising the essential functionality and safety features, without forewarning.
Page 53
OFFICES Evco
Via Mezzaterra 6, 32036 Sedico Belluno ITALIA Tel. 0437-852468 Fax 0437-83648 info@evco.it www.evco.it
OVERSEES BRANCHES Control France
155 Rue Roger Salengro, 92370 Chaville Paris FRANCE Tel. 0033-1-41159740 Fax 0033-1-41159739 control.france@wanadoo.fr
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Evco Pacific
59 Premier Drive Campbellfield, 3061, Victoria Melbourne, AUSTRALIA Tel. 0061-3-9357-0788 Fax 0061-3-9357-7638 everycontrol@pacific.com.au
Evco Russia
111141 Russia Moscow 2-oy Proezd Perova Polya 9 Tel. 007-495-3055884 Fax 007-495-3055884 info@evco.ru
Every Control do Brasil
Rua Marino Félix 256, 02515-030 Casa Verde São Paulo SÃO PAULO BRAZIL Tel. 0055-11-38588732 Fax 0055-11-39659890 info@everycontrol.com.br
Every Control Norden
Cementvägen 8, 136 50 Haninge SWEDEN Tel. 0046-8-940470 Fax 0046-8-6053148 mail2@unilec.se
Every Control Shangai
B 302, Yinhai Building, 250 Cao Xi Road, 200235 Shangai CHINA Tel. 0086-21-64824650 Fax 0086-21-64824649 evcosh@online.sh.cn
Every Control United Kingdom
Unit 19, Monument Business Park, OX44 7RW Chalgrowe, Oxford, UNITED KINGDOM Tel. 0044-1865-400514 Fax 0044-1865-400419 info@everycontrol.co.uk
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