Regin Corrigo E81-3, E81D-3, E151-3, E151D-3, E151W-3, E151DW-3, E15D-S-LON, E152W-3, E152DW-3, E281-3, E281D-3, E281W-3, E281DW-3, E282W-3, E282DW-3, E28D-S-LON, E283W-3, E283DW-3 ventilation controller Manual
Corrigo E81-3, Corrigo E81D-3, Corrigo E151-3, Corrigo E151D-3, Corrigo E151W-3, Corrigo E151DW-3, Corrigo E15D-S-LON, Corrigo E152W-3, Corrigo E152DW-3, Corrigo E281-3, Corrigo E281D-3, Corrigo E281W-3, Corrigo E281DW-3, Corrigo E282W-3, Corrigo E282DW-3, Corrigo E28D-S-LON, Corrigo E283W-3, Corrigo E283DW-3 are ventilation controllers designed for DIN-rail mounting. They can be used for controlling various aspects of an air handling unit, including temperature, humidity, and fan speed. The controllers offer a variety of control modes and functions to meet the specific needs of different applications.
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WE TAKE BU I L D I N G
AUTOMAT I ON PER SONALLY
MANUAL
CORRIGO VENTILATION
© Copyright AB Regin, Sweden, 2015
DISCLAIMER
The information in this manual has been carefully checked and is believed to be correct. Regin however, makes no warranties as regards the contents of this manual and users are requested to report errors, discrepancies or ambiguities to Regin, so that corrections may be made in future editions. The information in this document is subject to change without prior notification.
The software described in this document is supplied under licence by Regin and may be used or copied only in accordance with the terms of the licence. No part of this document may be reproduced or transmitted in any form, in any fashion, electronically or mechanically, without the express, written permission of Regin.
COPYRIGHT
AB Regin. All rights reserved.
TRADEMARKS
Corrigo, E tool
©
, EXOdesigner, EXOreal, EXOrealC, EXOline, EXO4, EXO4 Web Server, Optigo, Regio and Regio tool are registered trademarks of AB Regin.
Windows, Windows 2000, Windows XP, Windows Vista, Windows 7, Windows 8 and Windows Server 2003 are registered trademarks of Microsoft Corporation.
Some product names mentioned in this document are used for identification purposes only and may be the registered trademarks of their respective companies.
Revision S, October 2014
Software revision: 3.4
Table of contents
INDEX ........................................................................................................................................ 118
APPENDIX FREQUENCY CONVERTERS AND PRESSURE TRANSMITTERS ...................................... 122
Chapter 1 About the manual
This manual covers all the models in the Corrigo series used with the ventilation application. This revision covers program revisions from 3.4.
More information
More information about Corrigo can be found in:
• Corrigo ventilation user guide – A simplified manual
• Manual E tool
©
– Manual on how to configure the controllers using the PC software
E tool
©
, available in Swedish, English, German and French.
• LON-interface variable list – Variable list for the Corrigo series, available in Swedish and
English.
• Corrigo ventilation variables for EXOline, Modbus and BACnet – Variable list for
EXOline, BACnet and Modbus communication, available in English.
• Editable PDF files for Corrigo
• CE - Declaration of conformity, Corrigo
The information is available for download from Regin's website, www.regincontrols.com.
6 Chapter 1 About the manual Manual Corrigo Ventilation, revision S
Chapter 2 About Corrigo
The Corrigo series comprises three model sizes: 8, 15 or 28 in-/outputs.
In each third generation model Corrigo, all applications are loaded in a separate memory area. The models have article number E...-3 (where 3 stands for third generation). A new feature as of version
3.3 are models with three communication ports. The 3 port Corrigo models have article number
E...3-3 (where the initial “3” stands for 3 ports). For more detailed information, see chapter 16.
The controllers are available with or without a front panel display and buttons. For all third generation units, both with and without display, a separate, cable-connected terminal E3-DSP with display and buttons is available.
All configuration and normal handling can be done using the display and buttons or using the configuration tool E tool
©
, installed on a PC and connected via the communication cable E-cable.
2.1 Application choice
On delivery, the main memory in the Corrigo is empty. All the application programs that can be run in the Corrigo are located in a separate memory area.
On the first start-up, the controller will start a special program for downloading a suitable application to the main memory.
The start screen will be displayed.
Application
System
Communication
Time/Date
Input/Output
Use the up and down arrows to move the cursor in the left edge of the display to the function you wish to select. Select “Application” and press the right arrow.
Corrigo vent.140616
Expansion unit 1
Expansion unit 2
Corrigo vent.140327
Move the cursor to the desired application. Press the right arrow.
Title:
Corrigo Ventilation
3.4
Activate? No
Press ”OK” and change ”No” into ”Yes”. Press ”OK”.
The most recently loaded ventilation application will now be entered into memory. This will take approx. 30 seconds. The application start screen is displayed.
To change languages, press the right arrow 3 times and then choose a language in the same way you selected an application.
2.1.1 Additional menu options
System:
Information on the Corrigo model and serial number.
Manual Corrigo Ventilation, revision S Chapter 2 About Corrigo 7
Controller
E283DW-3
Serial:
011310170148
EXOreal version.
EXOreal C revision:
3.2-0-07
SVN Build:
1420
MAC address and IP address.
MAC adress
00:30:97:00:87:78
IP:
10.0.0.197
Battery status and memory size.
Backup battery:
3.13 V
Flash total size:
8192 kB
Memory status and voltage frequency.
Flash mem. Free:
1168 kB
Mains power freq:
50Hz
Communication:
Communication mode selection.
Serial
TCP/IP
8
Serial:
Enables selection of EXOline address, communication speed, port mode and routing span.
EXOline address
PLA: 254
ELA: 30
Bitrate port #
1: 9600 bps
2: 9600 bps
Mode port #
1: Slave
2: Slave
Chapter 2 About Corrigo Manual Corrigo Ventilation, revision S
Routing (pipe)
Min Max
PLN: 0 255
ELA 0 255
TCP/IP:
Enables EXOline address selection
EXOline address
PLA: 254
ELA: 30
Choice of DHCP (Yes/No).
DHCP: Yes
Set static IP
Current IP:
10.0.0.197
Also enables manual IP address and subnet mask setting before initiating the Corrigo.
IP:
192.168.001.234
Subnet mask:
255.255.255.000
Default gateway and DNS name are also available from under this menu.
Default gateway:
192.168.001.001
DNS:
192.168.001.001
Current subnet mask, gateway and DNS name.
Current Subnetmask:
255.255.255.0
Current Gateway:
10.0.0.1
Main computer status.
Current DNS:
10.0.0.130
MainComputer status
Not configured
Main computer IP address.
Permit connection to main computer.
MainComputer IP:
Enable connection to
MainComputer: No
TCP port routing to serial port 1 or 2.
TCP port routing to
serial port: 1
Manual Corrigo Ventilation, revision S Chapter 2 About Corrigo 9
Time/Date:
Permits setting the time and date.
Time: 11:50
Date: 2014-06-25
Weekday: Wednesday
Input/Output:
Enables input/output reading and writing.
Analog Inputs
Digital Inputs
Universal Inputs
Analog Outputs
Digital Outputs
Analog Inputs
AI1: 0.0 0-10 Volts
AI2: 0.0 0-10 Volts
AI3: 0.0 0-10 Volts
AI4: 0.0 0-10 Volts
Digital Inputs
DI1: Off
DI2: Off
DI3: Off
DI4: Off
DI5: Off
DI6: Off
DI7: Off
DI8: Off
Universal Inputs
UAI1: 0.0 0-10 Volt
UAI2: 0.0 0-10 Volt
UAI3: 0.0 0-10 Volt
UAI4: 0.0 0-10 Volt
UDI1: Off
UDI2: Off
UDI3: Off
UDI4: Off
Analogue Outputs
AO1: 0.0 V
AO2: 0.0 V
AO3: 0.0 V
AO4: 0.0 V
AO5: 0.0 V
Digital Outputs
DO1: Off
DO2: Off
DO3: Off
DO4: Off
DO5: Off
DO6: Off
DO7: Off
10 Chapter 2 About Corrigo Manual Corrigo Ventilation, revision S
2.1.2 Ventilation application
The temperature controller is based on a supply air PI-controller for heating control with a preprogrammed set of control modes. A number of different control functions as well as analogue and digital in- and output functions can be bound to this controller. Certain functions are necessary, while others can be considered optional. The choice of which functions are to be used is free, the only restriction is the physical number of inputs and outputs of the different models. The maximum number of I/Os is 3*28 (a 2- or 3-port Corrigo with two expansion units).
The Corrigo is designed for DIN-rail mounting.
The program for an air handling unit contains, apart from other things, the following functions:
Different temperature control modes:
•
Supply air temperature control, with or without outdoor temperature compensation
•
Room temperature control (cascade control).
•
Extract air control (cascade control).
•
Seasonal switching between supply air temperature control and room/extract air temperature control.
•
Outdoor compensated room/extract air control.
•
Extra, separate temperature control circuit for after-heaters, etc. Can also be controlled as cascade control.
•
Extra control sequences Y4 and Y5 (in addition to Y1, Y2 and Y3) for free integration into the controller output.
With control of:
• Heat exchanger (liquid connected, plate or rotating) or mixing dampers.
• Heating coil: Water with or without frost protection or electric with high temperature limit switch.
• Cooling: Water or DX cooling in up to 3 steps.
• Circulation pumps heating, cooling, exchanger.
Fan control
• 1- or 2-speed supply air and extract air fans.
• Frequency controlled supply and extract air fans with pressure or flow control, manual control or external control from a VAV system.
• Pressure controlled supply air fan with slave connected extract air fan (output dependent or flow dependent) or opposite function (pressure controlled extract air fan with slave connected supply air fan, output dependent or flow dependent).
Humidity control
It is possible to use either humidification or dehumidification, or to use combined humidification and dehumidification.
Timer control
For starting and stopping the unit, annual clock function. Up to 5 timer outputs for control of external functions such as lighting, door locks etc.
Manual Corrigo Ventilation, revision S Chapter 2 About Corrigo 11
Demand controlled ventilation
In buildings with strongly varying occupancy the fan speeds or mixing dampers can be controlled by the air quality measured by a CO
2
sensor.
Support control
When using the control function room control or extract air temperature control, it is possible to utilise support-heating and/or support-cooling.
Free cooling
When this function has been activated, it is used during the summer to cool the building during the night using cool outdoor air thereby reducing the need to run chillers during the day.
Free heating
If the outdoor temperature is higher than the indoor temperature and there is a heating demand, the recovery damper will not open for recovery but instead open fully for outdoor air. This may occur during low night-time outdoor temperatures, when the room has been cooled considerably and the outside heat is rising faster than indoors. This function is activated at the same time as “Free cooling”.
Enthalpy control
Measures and compares the energy content (enthalpy) of the outdoor air and the extract air
(temperature and air humidity). When this function is active, the mixing damper signal will be overridden to recirculation if the enthalpy is higher outdoors than indoors.
Pretreatment
Damper and pump control for preheating or precooling of the outdoor air via an underground intake channel.
Cooling recovery
If the extract air is colder than the outdoor air and cooling is required, the heat exchanger control is reversed in order to return the cool extract air.
Recirculation control
Recirculation of air using a supply air fan and (optionally) extract air fan and a recirculation damper with or without temperature control. Used as a recovery function or during heating with support control during the night. Recirculation control is available as an analogue or a digital function.
Step controllers Heating/Cooling
As an alternative to the analogue control of ”Actuator heating Y1” or ”Actuator cooling Y3” step controllers can be used for controlling heating or cooling in steps using digital control.
Change-over
In 2-pipe systems where a combination heater/cooler is operating together with a heat pump,
Change-over is a function that enables using the same pipe for both heating and cooling, depending on which is currently required. It uses the output Y1 heating/Y3 cooling.
12 Chapter 2 About Corrigo Manual Corrigo Ventilation, revision S
Corrigo hardware overview
AI*
DI*
UI*
AO*
DO*
RS485
BACnet/IP
LON
TCP/IP
1 port
2 ports
3 ports
Display
•
2 2 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
3 3 4 4 4 4 4 4 4 8 8 8 8 8 8 8 8 8
- - - - - - - - - 4 4 4 4 4 4 4 4 4
•
1 1 3 3 3 3 3 3 3 5 5 5 5 5 5 5 5 5
2 2 4 4 4 4 4 4 4 7 7 7 7 7 7 7 7 7
• •
•
•
•
•
•
•
•
•
•
• •
• •
•
•
•
•
•
•
•
•
•
•
• •
•
• •
•
• •
• •
• •
•
•
•
•
• • • •
• • • •
• •
• • •
•
•
• •
•
• •
•
* AI=analogue inputs, DI=digital inputs, AO=analogue outputs, DO=digital outputs, UI=universal inputs (can be configured to function as either analogue input or digital input).
All third generation Corrigo controllers support external displays.
E81D-3
E151D-3
E281D-3
E15D-S-LON
E28D-S-LON
E151DW-3
E281DW-3
E152DW-3
E282DW-3
E283DW-3
Corrigo model overview
Models with display Models without display Description
Standard controller with RS485 port
E81-3
E151-3
E281-3
E15-S-LON
E28-S-LON
E151W-3
E281W-3
E152W-3
E282W-3
E283W-3
Controller with both LON and RS485 port
Controller with TCP/IP port and built-in web server
Controller with one RS485 port, one TCP/IP port and built-in web server
Controller with two RS485 ports, one TCP/IP port and built-in web server
Manual Corrigo Ventilation, revision S Chapter 2 About Corrigo 13
2.2 Technical data
Protection class .................................................................................................................. IP20
Display........................................................ 4 rows of 20 characters. Background illumination.
LEDs
Yellow ....................................................................................................... Settable parameter
Red ............................................................................................................... Alarm indication
Clock .................................................................. Year base 24 hour clock with battery backup.
Automatic summer-/winter-time changeover.
Operating system .......................................................................................................... EXOreal
Supply voltage .................................................... 24 V AC ±15%, 50…60 Hz or 21…36 V DC
Power consumption ........................................ 5 VA, 3 W (DC), model …W: 9 VA, 5 W (DC)
Dimensions .................................................................... 148x123x60 (WxHxD incl. terminals)
Casing .......................................................................... Standard Euronorm (8.5 modules wide)
Mounting ................................................................................................................ On DIN-rail
Operation
Climatic conditions according to IEC 721-3-3 ........................................................ Class 3k5
Ambient temperature ..................................................................................................0...50°C
Ambient humidity .............................................................................................. Max 95% RH
Mechanical requirements according to IEC721-3-3 .............................................. Class 3M3
Vibration .......................................................... IEC60068-2-6, Test FC, vibration Sinusoidal
Shock ................................................................................................ IEC60068-2-27, Test Ea
Transport
Climatic conditions according to IEC 721-3-2 ........................................................ Class 2k3
Ambient temperature .............................................................................................. -20...70°C
Ambient humidity .............................................................................................. Max 95% RH
Mechanical requirements according to IEC721-3-2 .............................................. Class 2M2
Vibration .......................................................... IEC60068-2-6, Test FC, vibration Sinusoidal
Shock ................................................................................................ IEC60068-2-27, Test Ea
Free fall .............................................................................................IEC60068-2-27, Test Ed
Storage
Climatic conditions according to IEC 721-3-1 ........................................................ Class 1k3
Ambient temperature .............................................................................................. -20...70°C
Ambient humidity .............................................................................................. Max 95% RH
Battery
Type .................................................................................... Replaceable Lithium cell, CR2032
Battery life ................................................................................................... Better than 5 years
Warning .................................................................................................... Low battery warning
Battery backup ............................................................................... Memory and real time clock
Communication
EXOline Port 1, insulated via a built-in RS485 contact.
EXOline Port 2, via a built-in RS485 contact.
EXOline TCP/IP.
Modbus communication via serial RS485 communication or TCP/IP.
BACnet/IP via TCP/IP or BACnet MS/TP via RS485 (requires BACnet router).
LON serial communication.
Suitable model should be selected for appropriate needs.
EMC emission and immunity standard
This product conforms to the requirements of the EMC Directive 2004/108/EC through product standards EN 61000-6-1 and EN 61000-6-3.
RoHS
This product conforms to the Directive 2011/65/EU of the European Parliament and of the Council.
14 Chapter 2 About Corrigo Manual Corrigo Ventilation, revision S
Inputs
Analogue inputs AI .............................................. Settable 0…10 V DC or PT1000, 12 bit A/D
Digital inputs DI ....................................................................................... Potential-free closure
Universal inputs UI ........................................... Can be set to act as either an analogue input or
a digital input with specifications as above
Outputs
Analogue outputs AO ............................................... Configurable 0…10 V DC; 2…10 V DC;
10…0 V DC or 10…2 V DC
8 bit D/A short-circuit protected
Digital outputs DO ........................................... Mosfet outputs, 24 V AC/DC, 2 A continuous.
Totally max 8 A.
24V DC output(+C)
Voltage.................................................................................................... ........... 24 V DC+- 2V
Max charge ....................................................................................................................... 0.1 A
Options
LON ................................................................... FT3150, gives a second communication route
…W (TCP/IP-port) ........................................................ EXOline and Modbus communication
2-port Corrigo models ........................ Two serial ports or one serial port and one TCP/IP port
3 ports Corrigo............................................................ .... Two serial ports and one TCP/IP port
External hand terminal, E3-DSP ............................ For use with Corrigo units without display
External room unit...................................................................... ED-RU / ED-RUD / ED-TCV
Position of the terminals on the Corrigo
Manual Corrigo Ventilation, revision S Chapter 2 About Corrigo 15
Chapter 3 Installation and wiring
3.1 Installation
Corrigo can be mounted in a DIN-standard casing (minimum 9 modules), on a DIN-rail in a cabinet or, using a suitable front-mounting kit, in a cabinet door or other control panel.
Ambient temperature: 0…50°C.
Humidity: Max. 90 % RH, non-condensing.
The picture below shows a wiring example for Corrigo E283W-3.
3.2.1 Supply voltage
24 V AC ±15%, 50…60 Hz or 21…36 V DC
If Corrigo and its connected actuators share the same transformer, it is essential that the same transformer pole is used as reference for all the equipment. The equipment may otherwise not function as intended and may also suffer damages.
16 Chapter 3 Installation and wiring Manual Corrigo Ventilation, revision S
3.2.2 Inputs and outputs
The list of input and output functions in section 3.2.3 is a handy instrument to help you keep track of which inputs and outputs you will need to configure.
Analogue inputs
Analogue inputs must refer to an Agnd terminal placed in the same terminal block as the input being wired.
Analogue inputs can, depending on the configuration, be used for either PT1000 temperature sensors or for 0…10 V DC analogue input signals, for example from a pressure transmitter.
Digital inputs
Digital inputs must refer to +C on terminal 4. Digital inputs may only be wired to voltage-free contacts. Any external voltage applied to a digital input may harm the unit. The input signal can be set to either NO or NC.
Universal inputs
A universal input can be configured to act as either an analogue input or as a digital input.
A universal input configured as an analogue input can, depending on the configuration, be used for either PT1000 temperature sensors or for 0…10 V DC analogue input signals, for example from a pressure transmitter.
Universal inputs configured as an analogue input must refer to an Agnd terminal placed in the same terminal block as the input being wired.
A universal input configured as a digital input must, just like other digital inputs refer to C+ on terminal 4. It may only be wired to voltage-free contacts.
Analogue outputs
Analogue outputs must refer to the Agnd terminal placed in the AO terminal block.
All analogue outputs can be individually set to any one of the following signals:
0…10 V DC
2…10 V DC
10…0 V DC
10…2 V DC
If the Corrigo and the actuators connected to it share the same transformer it is essential that the same transformer-pole is used as reference for all the equipment. Failure to do so will prevent the equipment from functioning as intended and may also lead to damages.
Digital outputs
Digital outputs should normally refer to G
DO
on terminal 10. G
DO is internally connected to G on terminal 1 and supplies 24 V AC or DC depending on the choice of supply voltage.
All the digital outputs are controlled by MOSFET transistors. The outputs are internally connected with G
0
and can deliver max 2 A per output. However, the total power for all the DOs must not be over 8 A.
A number of different wiring alternatives are possible depending on the type of supply voltage to the Corrigo and the relay type.
Manual Corrigo Ventilation, revision S Chapter 3 Installation and wiring 17
24 V AC supply and 24 V AC relays
24 VAC
L
24 V AC
N
G
G
0
10
11
12
24 V DC supply and 24 V DC relays
24 V DC
+
-
G
G
0
+ -
+ -
+ -
10
11
12
24 V AC supply and 24 V DC relays
+ -
24 VAC
L
24 V AC
N
G
G
0
+ -
+ -
+ -
10
11
12
18 Chapter 3 Installation and wiring Manual Corrigo Ventilation, revision S
24 V DC supply and 24 V AC relays
L N
24 V DC
+
-
G
G
0
10
11
12
3.2.3 Input and output lists
The lists below are intended to be used during commissioning to help you keep track of the desired input and output functions.
The left column contains a description of the in-/output signal, the middle column displays the name of the corresponding signal in E tool
©
and the right column shows the text displayed in the Corrigo controller.
Analogue input signals
Description
E tool
©
Display
Manual Corrigo Ventilation, revision S
Inactive input Not active
Outdoor temperature sensor, PT1000 or
0…10V
Outdoor temp
Supply air temperature sensor Supply air temp
Extract air temperature sensor
Exhaust air temperature sensor
Room temperature sensor 1, PT1000 or
0…10V
Room temperature sensor 2
Room temp 1
Room temp 2
CO
2
sensor, 0…10 V DC
Pressure transmitter supply air, 0…10
V DC
Extract air temp
Exhaust air temp
CO2 sensor
SAF pressure
Pressure transmitter extract air, 0…10
V DC
De-icing sensor, heat exchanger
Frost protection sensor
Room humidity sensor
Duct humidity sensor
EAF pressure
Deicing temp
Frost protection temp
Humidity room
Humidity duct
Outdoor humidity sensor Humidity outdoor
Temperature sensor, Extra controller Extra unit temp
External control supply air fan
External control extract air fan
Pressure transmitter supply air 2
External control SAF
External control EAF
SAF pressure 2
Not used
Outd temp
Supply temp
Extract temp
Exhausttemp
Room temp1
Room temp2
CO2 sensor
SAF pressure
EAF pressure
Deicing temp
Frost prot temp
Humidity room
Humidity duct
Humidity out
Extra unit temp
SAF ext ctrl
EAF ext ctrl
SAF pressure2
Chapter 3 Installation and wiring 19
Description
Intake temperature
Extra temperature sensor 1
Extra temperature sensor 2
Extra temperature sensor 3
Extra temperature sensor 4
Extra temperature sensor 5
Extra pressure transmitter supply air
Extra pressure transmitter extract air
External flow pressure transmitter
Analogue filter guard 1
Analogue filter guard 2
Efficiency temperature sensor
E tool
©
Intake temp
Extra sensor temp 1
Extra sensor temp 2
Extra sensor temp 3
Extra sensor temp 4
Extra sensor temp 5
Extra SAF pressure
Extra EAF pressure
External flow setpoint
Filter guard 1
Filter guard 2
Efficiency temp
Display
Intake temp
Extsensor1
Extsensor2
Extsensor3
Extsensor4
Extsensor5
Extra SAF pressure
Extra EAF pressure
Ext sp flow
Filtguard1
Filtguard2
Efficiency
Digital input signals
Description
E tool
©
Display
Inactive input
Filter guard, supply air
Filter guard, extract air
Run-indication/alarm circulation pump,
Heating
Run-indication/alarm circulation pump, exchanger
Not active
Filter guard 1
Filter guard 2
Heat pump indication
Exchange pump indication
Not used
Filter guard1
Filter guard2
P1 heating
P1 exchanger
Run-indication/alarm circulation pump,
Cooling
Fire alarm
Cooling pump indication
Fire alarm
Fire damper end-switch monitoring
Extended operation, Normal
Extended operation, Reduced
External switch
External alarm
P1 cooling
Fire alarm
Fire damper indication Fire damper ind
Extended operation, normal Ext run 1/1
Extended operation, reduced Ext run 1/2
External switch
External alarm
External switch
External alarm
Flow switch
Rotation guard exchanger
Run-indication/alarm supply air fan
Flow switch
Exchange rotation
SAF indication
Run-indication/alarm extract air fan
Deicing thermostat exchanger
EAF indication
Deicing
Frost protection thermostat water heater Frost protection
High temperature limit switch Overheated electric heater
Recirculation start
Change over
Acknowledgement of all alarms
Extra alarm 1
Extra alarm 2
Recirculation
Change-over
Alarm acknowledgement
Extra alarm 1
Extra alarm 2
Flow guard
Rot sent exch
SAF ind
EAF ind
Deicing
Frost prot
Overheat protection
Recirculation
Change-over
Alarm ack
Ext alarm1
Ext alarm2
20 Chapter 3 Installation and wiring Manual Corrigo Ventilation, revision S
Description
Extra alarm 3
Extra alarm 4
Extra alarm 5
Extra alarm 6
Extra alarm 7
Extra alarm 8
Extra alarm 9
Extra alarm 10
Start extra motor 1
Start extra motor 2
Run-indication/alarm extra motor
Run-indication/alarm extra motor
E tool
©
Display
Extra alarm 3
Extra alarm 4
Extra alarm 5
Extra alarm 6
Extra alarm 7
Extra alarm 8
Extra alarm 9
Extra alarm 10
Motor control 1
Motor control 2
Motor control 1 indication
Motor control 2 indication
Ext alarm3
Ext alarm4
Ext alarm5
Ext alarm6
Ext alarm7
Ext alarm8
Ext alarm9
Ext alarm10
Motor1
Motor2
Ind motor1
Ind motor2
The universal inputs on Corrigo E28 can be individually configured as either analogue inputs, using any of the analogue input signals above, or as digital inputs using any of the digital inputs above.
Analogue output signals
Description
E tool
©
Display
Inactive output
Y1 actuator heating
Y2 actuator exchanger
Y3 actuator cooling
Frequency converter, supply air fan
Frequency converter, extract air fan
Actuator Humidity control
Not used
Heating Y1
Exchanger Y2
Cooling Y3
SAF
EAF
Dehumidification/
Humidification
Split Split of any one of temp outputs Y1, Y2,
Y3 or Y1 Heating/Y3 Cooling outputs
Extra controller
Y1 heating / Y3 cooling, change-over output
Y4 extra sequence
Also used for control of recirculation air damper 0...10V
Y5 extra sequence
Temperature output
Optional temperature 0…10V
Extra unit control
Y1 heating/Y3 cooling
Extra sequence Y4
Extra sequence Y5
Temperature
Not used
Y1 heating
Y2 exchanger
Y3 cooling
SAF
EAF
Humidity
Split
Extra unit
Y1 heat/Y3 cool
Y4 extra sequence
Y5 extra sequence
Temperature
Manual Corrigo Ventilation, revision S Chapter 3 Installation and wiring 21
Digital output signals
Description
E tool
©
Display
Inactive output
Start/stop Supply air fan Normal
Start/stop Extract air fan Normal
Start/stop Supply air fan Reduced
Start/stop Extract air fan Reduced
Start/stop circulation pump, heating
Fire damper
Sum alarm A- B- and C-alarm
Sum alarm A-alarm
Sum alarm B- and C-alarm
Start/stop circulation pump, cooling
Start/stop circulation pump, liquid exchanger
Activation-signal SAF frequency converter
Activation-signal EAF frequency converter
Activate heating
Activate cooling
Activate exchanger
Exhaust air close-off damper
Fresh air close-off damper
Not used Not used
SAF start 1/1 normal speed SAF 1/1-speed
EAF start 1/1 normal speed EAF 1/1-speed
SAF start 1/2 reduced speed SAF 1/2-speed
EAF start 1/2 reduced speed EAF 1/2-speed
Heating pump start P1 heating
Fire damper
Sum alarm
Fire damper
Sum alarm
Sum alarm A
Sum alarm B/C
Cooling pump start
Exchanger start
SAF freq start
EAF freq start
Heating activate
Cooling activate
Exchanger activate
Exhaust air damper
Outdoor air damper
Recirculation damper
Heating 3-position actuator, increase
Recirculation air damper
Heating increase
Heating 3-position actuator, decrease Heating decrease
Exchanger 3-position actuator, increase Exchanger increase
Exchanger 3-position actuator, decrease Exchanger decrease
A-sum alarm
B-sum alarm
P1 cooling
P1 exchanger
SAF frequence
EAF frequence
Heat start
Cool start
Exch start
Exhaust air damper
Outd air damper
Recirc damper
Heat inc
Heat dec
Exch inc
Exch dec
Cooling 3-position actuator, increase Cooling increase
Cooling 3-position actuator, decrease Cooling decrease
Step controller heating, step 1 Heat step 1
Step controller heating, step 2
Step controller heating, step 3
Heat step 2
Heat step 3
Step controller heating, step 4
Step controller cooling, step 1
Step controller cooling, step 2
Step controller cooling, step 3
Extra time channel 1
Heat step 4
Cool step 1
Cool step 2
Cool step 3
Time channel 1
Extra time channel 2
Extra time channel 3
Extra time channel 4
Extra time channel 5
Humidity
External controller active
Heating/cooling step 1
Time channel 2
Time channel 3
Time channel 4
Time channel 5
Humidity/Dehumidity
Extra unit active
Heat/cool step 1
Cool inc
Cool dec
Heat step1
Heat step2
Heat step3
Heat step4
Cool step1
Cool step2
Cool step3
Timer1
Timer2
Timer3
Timer4
Timer5
Humidity
ExtraUnitActivate
HeatCoolStep1
22 Chapter 3 Installation and wiring Manual Corrigo Ventilation, revision S
Description
Heating/cooling step 2
Heating/cooling step 3
Free cooling operation
Pretreatment
Split sequence active
Run indication
Pulse modulated heating output
Activate Y4
Activate Y5
Pulse modulated cooling output
Start/stop extra motor 1
Start/stop extra motor 2
Run indication/alarm extra motor
Run indication/alarm extra motor
E tool
©
Display
Heat/cool step 2
Heat/cool step 3
Free cool run
Pretreatment
Split sequence
Run indication
Heating PWM
HeatCoolStep2
HeatCoolStep3
Free cool run
Pretreatment
Split sequence
Run ind
Heating PWM
Y4 extra sequence activate Y4 extra seq
Y5 extra sequence activate Y5 extra seq
Cooling PWM Cooling PWM
Motor control 1 start
Motor control 2 start
Motor control 1 indication
Motor control 2 indication
Motor1
Motor2
Ind motor1
Ind motor2
Manual Corrigo Ventilation, revision S Chapter 3 Installation and wiring 23
Chapter 4 Commissioning
General
Before the Corrigo can be used, all inputs and outputs must first be configured, as well as all relevant parameters.
All commissioning can be done using the Corrigo front panel display and buttons or using the external display unit E3-DSP.
E tool
©
The best way however, is to configure the Corrigo by using E tool
©
.
E tool
©
is a PC-based configuration program specially developed to simplify the commissioning of the Corrigo series.
When using E tool
©
the whole configuration and all settings can be done on the computer and then be downloaded to the Corrigo. An infinite number of different configurations can be saved in computer memory for later use.
A communication cable is required in order to configure Corrigo. E-CABLE2-USB or E-CABLE-
RS232 are used for controllers featuring RS485 communication, and an E-CABLE-TCP/IP
(crossover network cable) for controllers with a TCP/IP port.
The Corrigo must be powered up and the application selected in order for it to be configured.
4.1 How to do it
For configuration using E tool
©
, see the E tool
©
manual.
For configuration using the front panel or E3-DSP, there are two ways to go depending on how much help you need.
Option 1:
• Jump straight to chapter 7 and 8, Display, LEDs and buttons and Access rights.
• After learning how to use the buttons and menu system, connect power to your Corrigo, log on as Admin and go to the menu "Configuration".
• Go to the In-/Outputs configuration menu and begin by configuring these.
• Proceed to control functions.
• Run through the configuration menus in order and set whatever functions and parameters you wish to include. Use chapter 6 of this manual for reference.
Keep track of which inputs and outputs you will need. To help you, there is a list of input and output functions provided in chapter 3, (3.2.3 Input / Output list.)
• Finally, configure In-/Outputs.
• Exit the "Configuration" menu and go to "Settings".
• Set the control values in "Settings".
• Set the clock and scheduler functions in "Time Settings".
• Set the control setpoints in temperature and air control as well as in humidity control if humidity control has been configured
Your Corrigo is now ready for use.
24 Chapter 4 Commissioning Manual Corrigo Ventilation, revision S
Option 2:
Read this manual in the order given below: The manual has been designed to act as a guide through the commissioning. The last chapters of the manual, not listed below, cover menus and functions that are not used during commissioning.
Functional description
Start by reading chapter 5. Functional description below. Some functions are essential to the working of the unit and must be included. Others are more of the nature of optional extras which can be excluded.
At the end of each function description there is a table of the necessary inputs and outputs to implement the function. At the end of the manual there is a list of all the analogue and digital inputs and outputs. As you read, mark in the list the inputs and outputs you will be using for the application you are building. Note that the universal inputs in Corrigo individually can be configured as either analogue or digital inputs.
Display, buttons and LEDs
Read chapter 7 on how to use the front panel buttons to navigate the Corrigo menu system.
Access rights
Chapter 8: Learn how to log on to the Corrigo.
Configuration
Chapter 16: Configuration.
Connect power to the Corrigo. Using the buttons and menu system, go through the configuration menus covering the functions you wish to use.
On delivery the units already have the inputs and outputs assigned to various functions. These can be read using E tool
©
or directly in the display.
Settings
Chapter 15.
Set the control parameters, P-band, I-time for the temperature control.
Set the control parameters for the pressure control if you have pressure- or flow- controlled fans.
Set the control parameters for the humidity control if activated.
Set the alarm parameters; alarm levels and delay times.
Time settings
Chapter 13.
Set the clock and calendar functions.
Setpoints
Chapters 10, 11 and 12.
Set all the setpoints for all active control loops.
Manual Corrigo Ventilation, revision S Chapter 4 Commissioning 25
Manual/Auto
Chapter 14.
Learn to use manual control. A very useful tool for testing out and troubleshooting your system.
Other functions
Chapter 18.
Alarm handling etc.
26 Chapter 4 Commissioning Manual Corrigo Ventilation, revision S
Chapter 5 Functional description
5.1 Temperature control
General
Corrigo has a choice of the following control modes:
1. Supply air control
2. Outdoor temperature compensated supply air control
3. Cascaded room temperature control
4. Cascade connected extract air temperature control
5. Outdoor temperature dependent switching between supply air control with outdoor temperature compensation and room temperature control
6. Outdoor temperature dependent switching between supply air control with outdoor temperature compensation and extract air control
7. Outdoor compensated room temperature control
8. Outdoor compensated extract air control
The supply air temperature controller is reverse acting, i. e. the output will increase for decreasing temperature. The controller is a PI-controller with settable P-band and I-time.
In the first mode, the temperature at the supply air sensor will be constantly kept at the user setpoint value. In the second mode, the supply air temperature setpoint is adjusted depending on the outdoor temperature.
In modes three and four the supply air is controlled as part of a cascade controller together with the room/extract temperature controller. The room/extract temperature offset will dictate the supply air temperature setpoint.
Mode five and six vary according to the outdoor temperature: Outdoor temperature compensated supply air control, as in mode two, in winter and cascaded room control or cascaded extract air control in summer, as in modes three or four. The switch-over temperature is settable.
In applications with mixing dampers instead of heat exchanger the signal for the damper control will be reversed compared to the signal for heat exchanger control i. e. decreasing signal on increasing heat demand. This is done automatically on configuring the exchanger output = dampers.
The heater can be either a hot water heater battery or an electric heater.
Outputs
The supply air controller output is split between one or more of the output blocks "Heating Y1",
"Exchanger Y2" and "Cooling Y3". Each of these output blocks can be bound to either an analogue
0…10 V DC output or to two digital 3-position increase/decrease outputs.
Each output block has two parameters for setting the control range:
Heating Controller Output signal (HCOut) at which the output should be 0 %
Heating Controller Output signal (HCOut) at which the output should be 100 %
These settings are used to establish the output activation order and to split the P-band between the outputs.
Manual Corrigo Ventilation, revision S Chapter 5 Functional description 27
Example:
0 % Cooling at HCOut = 30 %
100 % Cooling at HCOut = 0 %
0 % heat exch. at HCOut = 32 %
100 % heat exch. at HCOut = 50 %
0 % Heating at HCOut = 54 %
100 % Heating at HCOut = 100 %
Output signal
100%
0%
Controller signal
100%
54%
50%
32%
30%
0%
Cooling Heat exch.
Heating
Heat demand
In addition to these three, it is possible to connect two additional analogue output signals for control of optional sequences, Y4 extra sequence and Y5 extra sequence. ”Y4 extra sequence” and ”Y5 extra sequence” are both set in the same way as above. It is also possible to select whether “Y4 extra sequence” should be affected by the enthalpy control and/or the cooling recovery. Cooling recovery must be activated in order for Y4 to work together with this function. An outdoor temperature higher than the extract air temperature with a settable difference will result in an increasing signal on Y4. The same applies if the outdoor enthalpy value is greater than the indoor value during enthalpy control.
0 % at HCOut = 0% (HCOut= Heating Controller Output)
100 % at HCOut = 0% (HCOut=Heating Controller Output)
”Y4 extra sequence” can also be used for control of a modulating recirculation air damper. In cases where “Y4 extra sequence" controls a water heater battery, frost protection control may be activated.
A change-over signal can also be configured, “Y1 Heating/Y3 Cooling”.
It is also possible to split one of the three analogue outputs Heating, Heat exchanger or Cooling into two equal parts if an additional output function is desired.
Y4 extra sequence, Y5 extra sequence, Humidity control, Extra controller valve and Y1 heating/Y3 cooling can also be split.
There are two digital outputs that are pulse-width modulated, ”Heating PWM” and “Cooling
PWM”.
Their period times are settable, with a default setting of 60 s.
Example:
With a controller output of 50 % and a period time of 60 s, the output will be on for 30 s and off for
30 s. With a controller output of 25 % the output will be on for 15 s and off for 45 s.
28 Chapter 5 Functional description Manual Corrigo Ventilation, revision S
5.1.1 Control modes
1. Supply air control
The supply air temperature is kept at the setpoint value by controlling the output signals for
"Heating Y1", "Exchanger Y2", "Cooling Y3", "Extra sequence Y4" and “Extra sequence Y5”. A single PI control loop is used.
A neutral zone can be set around the setpoint value.
Example: If the setpoint is 18°C and the neutral zone is 2K, the cooling setpoint will be 19°C and
the heating setpoint will be 17°C (FS=0K).
The setpoint value is set using the front panel or alternatively using an external setpoint device.
Alarms which are activated when the supply air temperature is too high or too low are active.
Alarm for control offset of the supply air temperature is active.
2. Outdoor temperature compensated supply air control
The supply air temperature setpoint is outdoor temperature compensated using a control curve with
8 node points.
The supply air temperature is kept at the setpoint value by controlling the output signals for "Y1 heating", "Y2 exchanger", "Y3 cooling", "Extra sequence Y4" and “Extra sequence Y5”. A single
PI control loop is used.
Alarms which are activated when the supply air temperature is too high or too low are active.
Alarm for control offset of the supply air temperature is active.
3. Cascaded room temperature control
Cascade control of room temperature and supply air temperature to achieve a constant, settable room temperature. The room controller output signal generates the supply air controller’s setpoint value.
One or two room sensors can be connected. If two sensors are connected the average of their values will be used. The number of room sensors is detected automatically. The room temperature is kept at the setpoint value by controlling the output signals for "Y1 heating", "Y2 exchanger", "Y3 cooling", "Extra sequence Y4" and “Extra sequence Y5”. Two PI loops are used.
The room setpoint value is set using the front panel or alternatively using an external setpoint device.
4. Cascaded extract air temperature control
Cascade control of extract air temperature and supply air temperature to achieve a constant, settable room temperature. The extract air controller output signal generates the supply air controller’s setpoint value.
The extract air temperature is kept at the setpoint value by controlling the output signals for "Y1 heating", "Y2 exchanger", "Y3 Cooling", "Extra sequence Y4" and “Extra sequence Y5”. Two PI loops are used.
The extract air setpoint value is set using the front panel or, alternatively, by using an external setpoint device.
5. Outdoor temperature dependent switching between supply air temperature control and room temperature control
When the outdoor temperature is lower than a settable limit (winter), outdoor compensated supply air temperature control will be active, otherwise (summer) cascaded room temperature control.
Manual Corrigo Ventilation, revision S Chapter 5 Functional description 29
6. Outdoor temperature dependent switching between supply air temperature control and extract air temperature control
When the outdoor temperature is lower than a settable limit (winter), outdoor compensated supply air temperature control will be active, otherwise (summer) cascaded room temperature control as in control mode 4.
7. Outdoor compensated room temperature control
The room temperature can be compensated when the outdoor temperature increases. One can, for instance, imagine accepting a slightly higher room temperature if it is warm outside or, conversely, a slightly lower temperature if it is chilly. This function is included to conserve energy.
8. Outdoor compensated extract air control
The extract air temperature can be compensated when the outdoor temperature increases. One can, for instance, imagine accepting a slightly higher extract air temperature if it is warm outside or, conversely, a slightly lower extract air temperature if it is chilly. This function is included to conserve energy.
In- and outputs
1 2 3 4 5 6 7 8 Control mode
AI AI AI AI AI AI AI AI Supply air sensor
AI
AI AI AI AI Outdoor temperature sensor
AI AI AI
Room sensor
AI AI
AI Extract air sensor
AO AO AO AO AO AO AO AO Y1 heating 0…10 V DC **
AO AO AO AO AO AO AO AO Y2 exchanger 0…10 V DC **
AO AO AO AO AO AO AO AO Y3 cooling 0…10 V DC **
AO AO AO AO AO AO AO AO Y4 extra sequence 0...10 V DC
AO AO AO AO AO AO AO AO Extra split Y1, Y2 or Y3 0…10 V DC (optional)
AO AO AO AO AO AO AO AO
Y1 heating/Y3 cooling
Change-over (option)
DO DO DO DO DO DO DO
DO Heating 3-pos. increase **
DO DO DO DO DO DO DO
DO Heating 3-pos. decrease **
DO DO DO DO DO DO DO
DO Exch. 3-pos. increase **
DO DO DO DO DO DO DO
DO Exch. 3-pos. decrease **
DO DO DO DO DO DO DO
DO Cooling 3-pos. increase **
DO DO DO DO DO DO DO
DO Cooling 3-pos. decrease **
** Choose output type depending on the actuator type: Either AO 0…10 V or DO 3-position increase/decrease.
5.1.2 Heater types
5.1.2.1 Water heating
Control
When the unit is in running mode the heating valve is controlled by the analogue output ”Y1 heating” or by two digital outputs “Heating 3-pos. actuator, increase” and “Heating, 3-pos. actuator, decrease”.
30 Chapter 5 Functional description Manual Corrigo Ventilation, revision S
Frost protection
The heater return water temperature is measured using the analogue input ”Frost prot.temp”. Low temperatures will generate an internal, proportional signal that is used to force the heating valve open thereby preventing freeze-up of the heater.
The internal signal (“Internal signal”) will begin to rise as the frost protection temperature falls below “Alarm level” + “Prop. Band” in order to reach 100 % output when the signal has fallen to
“Alarm level”.
When ”Internal signal” reaches 100 % or the digital input ”Deicing heat exchanger” is activated, the unit is shut down, the heating output is set to completely open mode and an alarm is activated. The unit is restarted when the alarm has been acknowledged and the temperature for the frost protection sensor has risen above “Alarm limit frost” + “P-Band”.
Frost protection control is available on Y1 heating, Y4 extra sequence or on both Y1 and Y4.
The frost protection alarm level is set in the menu Settings/Alarm settings/Alarm limit.
“Internal signal”
Prop.band
100 %
0 %
“Frost protection sensor”
Alarm level
Shutdown mode
If frost protection is activated the controller will go into ”Shutdown mode” when the running mode switches to ”Off”. The shutdown controller will control the heating output to maintain a constant settable temperature at the frost protection sensor.
5.1.2.2 Electric heating
Control
The heating is controlled using the analogue output ”Y1 heating”. On activation of the digital input
“High temp limit switch” the unit will be shut down, either according to the stop sequence described in section Start/stop of unit or as an emergency shutdown. The unit will restart after the alarm has been acknowledged and “High temp limit switch” has reset. Note that activation of the input signal
“Flow switch” will also stop the unit.
Relay el. heating Control voltage
High limit thermostat
Corrigo
Contr. voltage
Auxiliary relay
Wiring suggestion high temp limit when using electric heating.
Manual Corrigo Ventilation, revision S Chapter 5 Functional description 31
Contactors are drawn inactivated.
Note: It is important that the high temperature thermostat is hardwired to disconnect the power to
the heater to ensure that the heating is shut down when the thermostat is activated even if the
Corrigo should be faulty.
5.1.2.3 Water heating and electric heating
The water heating is controlled by "Y1 heating", and the electric heating is controlled by the sequence "Split". Split (see the section Split of optional temp sequence) must always be set to
"Heating". On increasing heat demand, the water heating is first activated and then, if needed, the electric heating.
Frost protection and overheating protection are both active. If "step controller heating" is used, the function is tied to the output signal "Split".
5.1.2.4 Fast stop on overheating
If the function "fast stop on overheating" is active, the fans will be immediately stopped when there is an overheating alarm, regardless of the set cool-down time.
In- and outputs
Water heating
Electric heating
AI
DI**
DI
DI
Frost protection sensor (optional)
Frost protection thermostat water heater
(optional)
High temperature limit switch
Flow switch (optional)
**Frost protection can also be created using the digital input “Frost protection thermostat water heater” and an external thermostat. Activation of the input will force the running mode to Off and an alarm will be activated. The heating output is set to completely open, the remaining control outputs are set to zero.
Frost protection thermostat cannot be combined with shutdown mode.
5.1.3 Heat exchangers
The heat exchanger unit can be set to one of the following alternatives:
• Plate exchanger
• Rotating exchanger
• Liquid connected exchanger
• Mixing dampers
Plate exchanger
Control
The airflow through the exchanger is controlled by a shut-off damper and a by-pass damper. Both dampers are controlled by the same analogue output ”Y2 exchanger” or by two digital outputs
“Exchanger 3-pos. actuator, increase” and “Exchanger, 3-pos. actuator, decrease”, and are wired so that one opens as the other closes.
32 Chapter 5 Functional description Manual Corrigo Ventilation, revision S
Deicing
De-icing is activated either when the digital input signal ”De-icing exchanger” is activated or when the value of the analogue input ”Deicing temp” falls below the deicing limit (-3°C). It is deactivated when the digital input is reset or the analogue input rises above the limit value plus a settable differential. If a differential pressure switch is used in addition to the heat exchanger, the digital input ”Deicing thermostat exchanger” will also be used.
On de-icing:
A PI-controller compares the de-icing setpoint with the signal ”Deicing exchanger”. The lesser of the output signal from this controller and the output from the ordinary controller is used as output to the dampers.
Rotating exchanger
Control
Rotational speed is controlled by the analogue signal ”Y2 exchanger. A rotation sentinel can be connected to the digital input ”Rotation sentinel exchanger”. An alarm is generated if this input is activated at the same time as the analogue output signal is higher than 1.0V.
Liquid connected exchanger
Control
A mixing valve in the exchanger circulation system is controlled by the analogue signal ”Y2 heat exchanger” or by two digital outputs “Exchanger 3-pos. actuator, increase” and “Exchanger, 3-pos. actuator, decrease”.
The circulation pump (digital output "Start/stop P1, liquid exchanger") is started as soon as the actuator control signal exceeds 0.1 V and is stopped when the valve has been closed for more than 5 minutes.
De-icing
De-icing is activated either when the digital input signal ”De-icing exchanger” is activated or when the value of the analogue input ”Deicingtemp” falls below the de-icing limit (-3°C). It is deactivated when the digital input is reset or the analogue input rises above the limit value plus a settable differential.
On de-icing:
A PI-controller compares the de-icing setpoint with the signal ”De-icing Exchanger”. The lesser of the output signal from this controller and the output from the ordinary controller is used as output to the actuator.
Outdoor temp control of exchanger
Instead of using Y2 for analogue control of the heat exchanger it can be set to run on-off against outdoor temperature. The function controls a digital output “Exch control”, which is activated when the outdoor temperature falls below a set value.
Mixing dampers
Control
The analogue output signal ”Exchanger Y2”, or the two digital output signals "Exchanger 3position, increase" and "Exchanger 3-position, decrease", control two dampers for gradual mixing of outdoor air and recirculated air. In this mode the output signal decreases with increasing heat demand.
Manual Corrigo Ventilation, revision S Chapter 5 Functional description 33
CO
2
If demand controlled ventilation (see 5.4.2) is activated in combination with mixing dampers, and the CO
2
-value rises above the setpoint value, the dampers will let in more outdoor air. The function is controlled by a PI-controller. Factory settings: P-band 100ppm and I-time 100 seconds. These values can only be changed in E tool
©
.
CO
2
/VOC control can be used on ”Y2 exchanger” or ”Y4 extra sequence”. The control is selectable for use on Y2, Y4 or on both outputs.
Minimum limit
An outdoor air minimum limit for can be set using the front panel. The limit value is settable between 0 and 100 %.
In- and outputs
Plate Rotating
Exch.
Liquid Dampers
AI
DO
AI
DI
AI
DO
DI
AI
DO
AI
DI
AI
DO
Outdoor temp. sensor (optional, outd. temp start)
Activate exchanger (optional, outd. temp start)
Deicing sensor (optional)
Deicing signal (optional)
Rotation sentinel (optional)
Start delay exchanger
This function delays the exchanger start at start-up of the unit.
100 % exchanger output at start-up
After the delay described above, the exchanger output will be 100 % during the set time.
5.1.4 Types of chillers
Step controller Heating / DX cooling
As alternative or complement to the above mentioned analogue control, heating and cooling can be activated in steps. The internal signal is then used to activate digital outputs for control of the heaters/chillers. Up to four heater outputs and three cooler outputs can be configured. There are two possible modes:
Sequential
Each output step has individually settable on and off values in percent of the control signal. The number of steps is equal to the number of heater/chiller groups. Minimum on and off times can be set, i.e. the minimum time the step has to be inactive or active for a change to occur.
Binary
The heater power outputs should be binary weighted (1:2:4:8 for heating, 1:2:4 for cooling). The number of loads to be controlled is set. Thereafter the program will automatically calculate the individual activation levels. Switching differential and minimum on/off times can be set. The number of heating steps will be: 2 no. of groups
-1. In binary mode, the analogue output signal may be used to fill out between the steps. The signal will go 0…100 % between the activation of each step.
The load connected to the analogue signal should have the same size as the smallest of the binary groups. In the example below there are 4 heater groups (1:1:2:4) and the total number of heating steps is eight.
34 Chapter 5 Functional description Manual Corrigo Ventilation, revision S
Y1 = 1
1
2
1
1
2
1
4
Step controllers and Change-over
The digital output signals "Heating/cooling step 1", "Heating/cooling step 2" and "Heating/cooling step 3" are used for step controllers during change-over control (see section 5.1.12). They have the same functions as other step controller outputs, but are set to either heating or cooling depending on whether heating or cooling is required.
DX cooling with room or extract air control
If DX cooling is used in conjunction with room temperature control or extract air temperature control, there are two configuration alternatives, DX cooling or DX cooling with exchanger control.
DX cooling without exchanger control
When running cascade control, the supply air controller setpoint is normally controlled by the room/extract air controller output signal.
When DX cooling is activated, the supply air controller setpoint is lowered to five degrees
(adjustable) below the setpoint given by the room/extract air controller. This prevents the DX cooling from being activated/deactivated too often.
DX cooling with exchanger control
When running cascade control, the supply air controller setpoint is normally controlled by the room/extract air controller output signal.
When DX cooling is activated, the supply air controller setpoint is lowered to five degrees
(adjustable) below the setpoint given by the room/extract air controller. This prevents the DX cooling from being activated/deactivated too often. If the supply air temperature falls below the setpoint given by the room/extract air controller, the heat exchanger output will be activated in order to try to maintain the supply air setpoint given by the room/extract air controller. The output uses Pcontrol with a P-band of half the setpoint lowering (adjustable, 2.5°C as default). The setpoint given by the room/extract air controller cannot drop below the set min limit. When there is no longer a cooling demand, the supply air controller setpoint will return to the value given by the room/extract air controller.
Note: The function cannot be used if the exchanger signal controls a mixing damper.
Example:
The room controller gives a supply air setpoint of 16°C. If there is a cooling demand, the supply air controller setpoint is lowered to 11°C (16 – 5) and DX cooling is activated. Should the supply air temperature fall below 16°C, the exchanger output will be activated and reach 100 % output when the supply air temperature has fallen to 13.5°C (16 - 2.5).
Blocking of DX cooling at low outdoor temperature
DX cooling can be blocked when the outdoor temperature is low. It is possible to block the three cooling steps individually or to block all DX cooling. The temperature limits are adjustable (+13°C default) and have a fixed one degree hysteresis.
Manual Corrigo Ventilation, revision S Chapter 5 Functional description 35
When two DX cooling steps are used with binary function, the cooling effect is divided into three steps. The desired blocking level can be set individually for each of these steps.
When three DX cooling steps are used with binary function, the cooling effect is divided into seven steps. However, the controller still only has three blocking level settings. Therefore, Blocking step 1 will apply to binary steps 1 and 2, Blocking step 2 to binary steps 3 and 4, and Blocking step 3 to binary steps 5, 6 and 7.
Blocking of DX cooling at low supply air fan speed
When DX cooling is used in conjunction with pressure controlled or flow controlled fans it is possible to block DX cooling if the supply air fan control signal falls below a preset values. For sequential control, the blocking level is individually settable for each DX cooling step.
When two DX cooling steps are used with binary function, the cooling effect is divided into three steps. The desired blocking level can be set individually for each of these steps.
When three DX cooling steps are used with binary function, the cooling effect is divided into seven steps. However, the controller still only has three blocking level settings. Therefore, Blocking step 1 will apply to binary steps 1 and 2, Blocking step 2 to binary steps 3 and 4, and Blocking step 3 to binary steps 5, 6 and 7.
Blocking of DX cooling on cooling pump alarm
Corrigo can be configured to block DX cooling on cooling pump alarm.
In- and outputs
Heating Cooling Heating/Cooling
Change-over
DO
DO
DO
DO
DO
DO
DO
DO
DO
DO
Step controller, step 1 (optional)
Step controller, step 2 (optional)
Step controller, step 3 (optional)
Step controller, step 4 (optional)
Override of reduced speed for DX cooling
Override to normal quantity of air for DX cooling when the unit runs on reduced quantity of air. The fans can be set to normal operation when cooling is required at high outdoor temperatures (e.g.
>14°C, the same temperature limit as for blocking of DX cooling).
5.1.5 Support control
Support control is normally used when room temperature control or extract air control has been configured. When extract air control is configured a room sensor must be installed. “Support control
Heating” or “Support control Cooling” will run if Support control is configured, the running mode is in Off-state (timer control OFF and not in extended running) and if conditions call for support control (see below). Minimum run time is settable 0 to 720 minutes (FS= 20 minutes).
Support control can also be configured when supply air temperature control is used, if a room sensor is installed. The controller uses the configured min. (FS=15°C) and max. (FS=30°C) limitation values as support control setpoints. However, in this case the min. and max. limitation values cannot be changed. To change the values, temporarily configure room control, change the min. and max. values and then change back to supply air control.
Support control can also be configured to start only with the supply air fan. In this mode, the extract air fan is not active. This requires a digital output to be configured, which controls the recirculation damper to open completely so the supply air fan can circulate the air to and from the room. The digital output is called ”recirculation damper”.
36 Chapter 5 Functional description Manual Corrigo Ventilation, revision S
Support control heating
Demand for support control heating is when the room temperature is lower than the start value which is settable 0 to 30°C. The fans will run at the preset speed, the heater and the heat exchanger are controlled by the supply air temperature controller with the configured max limitation for the supply air (FS=30°C) as setpoint and the cooling is shut off (0%). Support control heating stops when the room temperature rises to the stop value and the minimum run time has been exceeded or the running mode changes to ”On”.
Support control cooling
Demand for support control cooling is when the room temperature is higher than the start value which is settable 20 to 50°C. The fans will run at the preset speed, the heater and the heat exchanger are shut down (0 %) and the cooling is controlled by the supply air temperature controller with the configured minimum limitation (FS=15°C) as setpoint. Support control cooling stops when the temperature falls below the stop value and the minimum run time has been exceeded or the running mode changes to ”On”.
5.1.6 Free cooling
This function is used during the summer to cool the building night-time using cool outdoor air, thereby reducing the need for cooling during the day and saving energy.
Free cooling requires an outdoor sensor (or an inlet temperature sensor) and either a room sensor or an extract air sensor. The outdoor sensor can be placed in the fresh air inlet duct.
Free cooling is only activated when all the start conditions are fulfilled.
Start conditions:
• Less than four days have passed since the unit was last in running mode.
• The outdoor temperature during the previous running period exceeded a set limit (22°C).
• It is between 00:00 and 07:00:00 in the day (settable).
• The timer outputs for "normal speed", "Extended running, Normal" and "External switch" are Off.
• A timer channel will be On sometime during the recently started 24 hours.
If the outdoor sensor is located in the fresh air inlet duct and/or an extract air sensor is selected and
ALL the start conditions are fulfilled, free cooling is activated and will run for 3 minutes to ensure that the temperature measurement when using an extract air sensor reflects the corresponding room temperature and that the outdoor temperature sensor senses the outdoor temperature even if it is placed in the fresh air inlet duct. If the outdoor sensor is not located in the fresh air inlet duct and a room sensor is selected, the unit will not start free cooling as long as all the temperatures are not within the start and stop temperature intervals.
After three minutes, the stop conditions will be controlled.
Stop conditions:
• Outdoor temp above the set max. value (18°C) or below the set min. value (condensation risk, 10°C).
• The room temp/extract air temp. is below the set stop value (18°C).
• The timer outputs for "normal speed", "Extended running, Normal" or "External switch" are On.
• It is past 07:00:00 in the day.
If any stop condition is fulfilled after three minutes, the unit will stop again. Otherwise, operation will continue until a stop condition is fulfilled.
When free cooling is active, the fans run at normal speed or the set value for pressure/flow control.
An offset can also be entered for the fan setpoints during free cooling. The digital output ”Free cool run” is active. The outputs "Y1 heating", "Y2 heat exchanger" and "Y3 cooling" are shut down.
After free cooling has been active, the heating output is blocked for 60 minutes (configurable time).
Manual Corrigo Ventilation, revision S Chapter 5 Functional description 37
In- and outputs
AI
Outdoor temperature sensor or Intake temperature
AI
DO
Room sensor or Extract air sensor
Free cooling operation
5.1.7 Cooling recovery
If the cooling recovery has been configured, there is a cooling requirement and the extract air temperature is a settable amount lower than the outdoor temperature, cooling recovery can be activated. When cooling recovery is activated the heat exchanger signal will be reversed to give increasing recovery on increasing cooling demand. The function also activates the heating function
“Free heating”: if heating is required and the outdoor temperature is higher than the extract air temperature, outdoor air will primarily be used.
Output signals
100%
Controller signal
0%
Cooling Exchanger
In- and outputs
AI
Outdoor temperature sensor
AI
Extract air sensor
5.1.8 Enthalpy control
Calculating the enthalpy means to calculate the energy content of the air, taking into consideration both the temperature and the air humidity. The value is given in energy per kilogram air (kJ/kg). If enthalpy control is configured, the enthalpy is calculated both indoors and outdoors. If the enthalpy is higher outdoors than indoors, the recirculation damper will be overridden to increase the recirculation. The function is not active when using free cooling, in this case outdoor air is used for cooling the room instead. For the enthalpy calculation to be made, four sensors are required:
In- and outputs
AI
Outdoor temperature sensor
AI
Outdoor humidity sensor
AI
AI
Room/Extract air temperature sensor
Room humidity sensor
38 Chapter 5 Functional description Manual Corrigo Ventilation, revision S
5.1.9 Heat exchanger efficiency monitoring
General
The function calculates the heat exchanger temperature efficiency in percent when the output signal to the exchanger is higher than 5 % and the outdoor temperature is lower than 10°C.
When the control signal is lower than 5 % or the outdoor temperature is higher than 10°C the display will show 0 %.
The heat exchanger efficiency is calculated using the following formula:
Option 1: Efficiency = (Extract air temp – Exhaust air temp) /
(Extract air temp – Outdoor temp) * 100
Option 2: Efficiency = (Efficiency temp – Outdoor temp) / (Extract air temp – Outdoor temp) * 100
Alarm
An alarm is activated if the efficiency falls below the set alarm level (50 %).
In- and outputs
AI
Outdoor temperature sensor
AI
AI
AI
Extract air sensor
Exhaust air sensor
Efficiency temperature sensor
The efficiency temperature sensor should be placed after the heat exchanger but before the heater. It will then replace the exhaust air temperature sensor.
5.1.10 External setpoint
An external setpoint device, e.g. TBI-PT1000 or TG-R4/PT1000 can be connected. The setpoint device must follow the PT1000 resistance curve. The unit is connected to the analogue input signal
”Extra temperature sensor 1”. The function must be activated in the menu ”Configuration/External setpoint”. The setting range can be min/max limited via a setting in the controller. The factory setting is min: +12, max: +30.
In- and outputs
AI
Extra temperature sensor 1
5.1.11 Recirculation
Recirculation is a function for distributing the air in the room using the supply air fan. The function can be used even when there is no heating or cooling demand. When using recirculation control, the extract air fan stops (but can also be set to run) and a recirculation damper opens which allows the air to circulate through the unit.
Recirculation is activated either via a digital input signal or by connecting it to "Timer output 5". If timer output for normal/reduced speed is activated during recirculation via ”Timer output 5”, normal/reduced speed gets priority. If timer output for normal/reduced speed is activated during recirculation via a digital input, recirculation gets priority.
Either a digital output (Recirculation damper) or an analogue output (Y4 Extra sequence) can be used as an output signal. When Y4 Extra sequence is used, the damper will become modulating.
Recirculation control can be configured as either air circulation (temperature control inactive) or air circulation with temperature control. (Only heating, only cooling or both heating and cooling).
Recirculation control has its own setpoint. However, the other settings are the same as for normal operation, i. e. if normal operation has been configured as room control, room control will also be used during recirculation.
Manual Corrigo Ventilation, revision S Chapter 5 Functional description 39
The recirculation setpoint can be configured as constant or offset. Constant means that the recirculation setpoint will be used. Offset is based on an offset from the supply air setpoint.
To lower the temperature, it is possible to configure free cooling to be used during recirculation, if the conditions for free cooling are fulfilled. Then, the recirculation damper closes, the supply and extract air dampers open and the extract air fan starts (the supply air fan also starts, if it is not already running). If the free cooling function is not configured for recirculation control and you want to cool down the supply air via a low recirculation setpoint, the cooling battery will be used. A max. room temperature can be configured for recirculation control. If the room temperature rises above the set value (FS 25°C), recirculation will be stopped. When the room temperature has fallen
1 K below the set max limit, recirculation will start again if the start conditions are still fulfilled.
When running frequency controlled fans and using recirculation control you can, depending on the type of fan control, configure a special pressure/flow offset for the setpoint or a manual output signal for the supply air fan.
5.1.12 Change-over
Change-over is a function for installations with 2-pipe systems. It makes it possible to use the same pipe for both heating and cooling, depending on whether heating or cooling is required.
A special analogue output signal, "Y1 heating/Y3 cooling", is used for Change-over control.
Switching between heating and cooling can be done in two ways. A digital Change-over input signal is normally used. Open contact gives heating control and closed contact gives cooling control. If the input has not been configured, change-over is handled by the internal controller signal. The output signal will follow the two regular output signals "Y1 heating" and "Y3 cooling".
For heating control, the digital outputs ”Heating activate” and ”Heat step 1-4” are active. For cooling control ”Cooling activate” and ”Cool step 1-3” are active.
If frost protection sensor has been configured, it will function in the usual way when heating is active. However, when cooling is active, it will only be used for indicating temperature.
Three digital output signals, "Heat/Cool Step 1", "Heat/Cool Step 2" and "Heat/Cool Step 3", are also connected with change-over. The signals can be used for reversing a step controlled heating pump etc. See also section 5.1.4 Step controller Heating/ DX cooling.
The change-over function can be split if needed. If so, set the analogue output to “Split” and select the function Y1 heating/Y3 cooling.
A digital function called “Split sequence” is connected to the split signal. It is active when the corresponding analogue signal exceeds 0.1 V.
5.1.13 Extra temperature sensor
The input signals ”Extra Sensor Temp 1”, ”Extra Sensor Temp 2”, ”...”, ”Extra Sensor Temp 5”, can be used to add extra temperature sensors for supervision of temperatures that are not related to any control functions. Each sensor has three alarms tied to it: High temperature, Low temperature and
Sensor error. “Extra temperature sensor 1” should be used for external setpoint input. “Extra Sensor
Temp 1” should be used for external setpoint input.
5.1.14 Extra flow sensors supply air and extract air
The input signals ”Extra SAF Pressure” and ”Extra EAF Pressure” can be used to display the flow in the supply air and extract air ducts. The K- and X-constants for each fan are used to calculate the flow.
5.2 Extra controller
An independent temperature control circuit for control of for example after-heaters. The circuit can be configured to heating or cooling. It has an analogue input signal for temperature sensors and an analogue output signal 0…10 V. There is also a digital output signal which is activated when the analogue output signal is above 1 V and deactivated when the analogue signal is below 0.1 V. The circuit can be configured to be active all the time or to be active only when the main unit is running at normal speed.
40 Chapter 5 Functional description Manual Corrigo Ventilation, revision S
The extra controller can also be used for humidity control. The cooling battery will be used for dehumidification if the room/extract air humidity is too high. The function uses the sensor “Extra unit temp” and is placed immediately after the cooling battery. The function also requires use of a room humidity or extract air humidity sensor.
Example:
If the room humidity exceeds the setpoint for the function, the cooling battery will be controlled by the external controller. The heater is controlled normally. When the room humidity falls below the setpoint once more, the cooling control will return to normal control. A hysteresis of 1 % is added to the function.
The function can be used for ”Cascaded room temperature control”, ”Cascade connected extract air temperature control”, ”Outdoor compensated room temperature control” as well as ”Outdoor compensated extract air control”.
An alarm will be triggered if ”Extra controller” is in manual position or if a sensor error occurs.
5.3 Humidity control
General
Humidity control can be configured as Humidification, Dehumidification or both Humidification and Dehumidification.
Two humidity sensors can be connected, a room sensor for control and an optional duct sensor for maximum limiting. The limit sensor can be omitted.
The humidity control is handled by a PI-controller.
The humidity sensors must give 0…10 V DC for 0…100 % RH.
Humidification
An analogue output is used to control a humidifier. The output will increase on decreasing humidity.
A digital output can also be used to start a humidifier.
Maximum limitation function using duct humidity sensor:
If the maximum limitation is 80 % RH and the hysteresis is 20 % RH, the controller output signal will begin decreasing at 60 % RH. When halfway to 80 % RH (i.e. when at 70 % RH), half the output signal will be damped. If the humidity in the duct still reaches 80 % RH, the entire output signal will be damped.
Dehumidification
An analogue output is used to control a dehumidifier. The output will increase on increasing humidity. A digital output can also be used to start a dehumidifier.
Humidification/dehumidification
An analogue output is used to control a humidifier. The output will increase on decreasing humidity.
The cooling output Y3 will be activated for dehumidification through condensation. The output will increase on increasing humidity. This signal overrides the cooling signal from the temperature controller so the output can be activated for dehumidification even if the temperature controller demand is zero.
For good temperature control when using cooling for dehumidification it is important that the cooler is placed first in the air stream so that the exchanger and heater can be used to reheat the air after dehumidification.
Manual Corrigo Ventilation, revision S Chapter 5 Functional description 41
Digital humidity signal
A digital output signal, "Dehumidification/Humidification", can be used for on/off control of humidifiers/dehumidifiers. The output signal has an activation value and a deactivation value which are connected to the humidity controller output. The signal is activated when the humidity controller output rises above the set activation value and is deactivated when the humidity controller output drops below the set deactivation value.
If a start signal is needed for a cooling unit or a magnetic valve for DX dehumidification, the digital output signal “Start P1-Cooling” should be used. In this case, the “pump” stop delay should be set to
0 s.
Inputs and outputs
AI
Room humidity sensor
AI
AO
DO
Duct humidity sensor
Humidity control output 0…10 V DC
Dehumidification/Humidification
5.4 Fan control
General
Fans can be 1-speed, 2-speed or variable speed via a frequency converter.
1-speed fans are controlled using the digital outputs "Start SAF-Normal" and "Start EAF-Normal".
2-speed fans are controlled using the digital outputs "Start SAF-Normal" and "Start EAF-Normal" as well as "Start SAF-reduced" and "Start EAF-reduced" giving normal and reduced speed respectively.
Variable speed control uses an analogue output per fan for controlling a frequency converter. There are two setpoints for each fan, "Normal" and "Reduced". Pressure or air flow control can be used.
Variable speed fans can also be configured to be run with fixed output values.
Compensation curve
When running pressure or flow control, it is also possible to for the pressure/flow to be temperature compensated.
The compensation can be made depending on supply air, extract air, room or outdoor temperature.
Crosswise interlock
Crosswise interlock of fans can be configured, which e.g. means that if one fan stops, the other fan will also stop.
Timer outputs, interlock at low outdoor temperatures
The fans are normally controlled by the timer channels for normal and reduced speed. At very low outdoor temperatures, "2-speed fans" or "pressure controlled fans" can be forced to "reduced speed".
The limit temperature is settable and the function has a differential of 2K.
Normal and reduced speed
Units with 2-speed or pressure control fans are always started at "reduced speed". After a settable time, Corrigo switches to "Normal speed" if normal speed is valid at start-up. When 2-speed fans are switched from "Reduced speed" to "Normal speed", "Reduced speed" is first disengaged. About
2 sec later, "Normal speed" is activated.
When Corrigo switches from "Normal speed" to "Reduced speed", there is a settable retardation time from disengagement to activation. See the section Retardation time.
42 Chapter 5 Functional description Manual Corrigo Ventilation, revision S
The extract air fan and the supply air fan have individual start and stop delays which are normally set so that the extract air fan is started before the supply air fan. If there are not enough digital outputs for individual control, both fans will have to be started using the signal for the supply air fan, and the delay be created using an external time relay.
5.4.1 Pressure control
Frequency control pressure
During pressure control, two separate analogue output signals are used for supply and extract air and two separate analogue input signals for supply and extract air for pressure transmitters. The fan speeds are controlled via frequency converters, thereby maintaining constant pressure. The pressure transmitter inputs are scalable using “Min volt input (Vmin)” and “Max volt input (Vmax)”.
A digital activation signal is normally used for each fan (“SAF freq conv start” and “EAF freq conv start”), for sending a start signal to the frequency converters. The start signal is activated as long as the fan is expected to be running.
For the supply and extract air fans, there are two individually settable setpoint values, one corresponding to normal speed and one corresponding to reduced speed. Changing between the two setpoint values is done using the timer channels for normal and reduced speed or using digital input signals ("Extended Operation, normal" and "Extended Operation, reduced").
Outdoor compensation
When running pressure control, it is also possible to outdoor compensate the pressure setpoint value.
The outdoor compensation is linear and is set using two parameter pairs which give the value of the compensation at two different outdoor temperatures. The compensation can be positive or negative.
The outdoor compensation is set in the menu Actual/Setpoint.
Using E tool
©
, you can also choose to only outdoor compensate the pressure value of the supply air fan. In that case, the extract air fan is controlled with constant flow, independent of the outdoor temperature.
The compensation can be selected to apply to both normal and reduced speed, or for normal speed only (factory setting = both speeds).
Extra compensation curve
As a complement to the above outdoor compensation, there is a function called ”Extra compensation curve pressure/flow setpoint” which can be used to set a compensation based on the room, extract air, supply air or outdoor temperature. The curve has three parameter pairs which correspond to the value of the compensation at three different temperatures.
Controller output-dependent extra compensation curve
The compensation is made using the control curve, one for heating demand and one for cooling demand. It is possible to select whether the compensation (0...10000) should increase or decrease the pressure setpoint. The 0...10000 compensation follows the current control quantity for the fans.
Manual Corrigo Ventilation, revision S Chapter 5 Functional description 43
100%
Y3 Y2 Y1
10000 units
10000 units
0%
Kompensation vid compensation
Controller output
Regulator- utsignal
Kompensation vid compensation
Frequency control flow
Instead of giving a pressure setpoint value, it is possible to use an airflow volume value in m
3
/h. The value from the pressure transmitter is recalculated to a volume flow using the formula below and the fans will be controlled to give a constant flow.
Flow = K *
∆ P
X
Where K and
X
are settable constants dependent on the fan size and
∆ P is the differential pressure, measured in Pa, over the fan. Each fan has its own set of parameters.
X
is normally 0.5 indicating that the flow is proportional to the square root of the differential pressure.
Outdoor compensation
Also when running flow control, it is possible to outdoor compensate the setpoint value.
The outdoor compensation is linear and is set using two parameter pairs which give the value of the compensation at two different outdoor temperatures. The compensation can be positive or negative.
Using E tool
©
, you can also choose to only outdoor compensate the flow of the supply air fan. In that case, the extract air fan is controlled using constant flow, independent of the outdoor temperature.
The compensation can be selected to apply to both normal and reduced speed, or for normal speed only (factory setting = both speeds).
Extra compensation curve
As a complement to the above outdoor compensation, there is a function called ”Extra compensation curve” which can be used to set a compensation based on the room, extract air, supply air or outdoor temperature. The curve has three parameter pairs which correspond to the value of the compensation at three different temperatures.
Controller output-dependent extra compensation curve
The compensation is made using the control curve, one for heating demand and one for cooling demand. It is possible to select whether the compensation (0...10000) should increase or decrease the pressure setpoint. The 0...10000 compensation follows the current control quantity for the fans, in this case pressure.
44 Chapter 5 Functional description Manual Corrigo Ventilation, revision S
100%
Y3 Y2 Y1
10000 units
10000 units
0%
Controller output
Regulator- utsignal
Frequency control manual
Frequency controlled fans can be controlled at a fixed rotational speed. The rotational speed is selected by setting a fixed output signal (0 – 100%). Values for normal and reduced speed can be configured for each fan.
Fans that are run with a fixed output signal can also be compensated (see the section above). In this mode, pressure sensors are not needed.
Frequency control external control signal
Two 0…10 V input signals are used for direct control of frequency controlled fans. The signal is received from e.g. a VAV unit. The signal controls the fans 0…100% (0…10 V on the analogue output). Pressure transmitters are not used in this control mode.
Frequency control SAF with EAF slave
The rotational speed of the supply air fan is controlled by a pressure transmitter which is placed in the supply air duct. The extract air fan does not have a pressure transmitter, instead you let the output for the extract air fan follow the control signal for the supply air fan. A scaling factor can be added if the characteristics of the extract air fan are not the same as the characteristics of the supply air fan. (Only pressure control of the supply air fan is possible using this function.) The extract air fan will start directly at 50% after the start delay. Then the heating of the exchanger will work for this operating mode as well. When the supply air fan starts, the extract air fan will be slave controlled by the supply air flow.
Frequency control EAF with SAF slave
The rotational speed of the extract air fan is controlled by a pressure transmitter which is placed in the extract air duct. The supply air fan has no pressure transmitter. Instead, the supply air fan output is made to follow the extract air fan control signal. A scaling factor can be added if the supply air fan characteristics are not the same as the characteristics of the extract air fan (only pressure control of the extract air fan is possible using this function).
Frequency control SAF with flow control EAF
The rotational speed of the supply air fan is controlled by a pressure transmitter which is placed in the supply air duct. The extract air fan is controlled by the supply air flow, in order to achieve a balanced ventilation. A pressure transmitter which is placed in the supply air fan cone ("Pressure transmitter SAF 2") gives a measured value of the present supply air flow. A corresponding pressure transmitter is placed in the extract air fan cone and gives a measured value of the extract air flow.
Manual Corrigo Ventilation, revision S Chapter 5 Functional description 45
The supply air flow is the setpoint used for control of the extract air fan. A scaling factor can be added if the extract air fan does not have the same characteristics as the supply air fan.
Frequency control EAF with flow control SAF
The rotational speed of the extract air fan is controlled by a pressure transmitter which is placed in the extract air duct. The supply air fan is controlled by the extract air duct flow in order to achieve a balanced ventilation. A pressure transmitter placed in the extract air fan cone (“Extra SAF
Pressure”) provides a measurement of the current extract air flow. A corresponding pressure transmitter is placed in the supply air fan cone, providing a measurement of the supply air flow.
The supply air fan is controlled using the extract air flow as a setpoint. A scaling factor can be added if the supply air fan does not have the same characteristics as the extract air fan.
Frequency control SAF and EAF with external flow setpoint
This signal can be used to control the SAF and EAF flow setpoints from an external VAV system if the ”Frequency control external” fan type is used.
If this signal is configured as an analogue input signal, the flow setpoint for the SAF and EAF will be controlled in normal speed.
The signal can be configured by using scaling: Min volt input (Vmin)/Min flow and Max volt input
(Vmax)/Max flow.
Minimum limit
For frequency controlled fans an adjustable minimum limit can be set individually on the supply air and extract air fan control signals.
In- and outputs
1-speed 2-speed Pressure/
Flow
DI
DO
DO
DI
DO
DO
DO
DO
DI
DI
DO
DO
AI
AI
AI
AI
AI
AI
AO
AO
Start SAF Normal
Start EAF Normal
Start SAF reduced
Start EAF reduced
SAF frequency start
EAF frequency start
Indication/alarm SAF
Indication/alarm EAF
Pressure transmitter SAF
Pressure transmitter EAF
Pressure transmitter 2 SAF
Extra pressure transmitter SAF
Extra EAF Pressure
External flow setpoint
Frequency converter SAF
Frequency converter EAF
46 Chapter 5 Functional description Manual Corrigo Ventilation, revision S
5.4.2 Demand controlled ventilation
In applications with varying occupancy the fan speeds or mixing dampers can be controlled by the air quality as measured by a CO
2
sensor.
You can choose to activate the function "1. Always", "2. Only when the running mode is On", "3.
Only when the running mode is Off".
When the function is activated and combined with pressure controlled fans and the CO
2
value rises above control value one the fans will start at reduced speed, if they are not already running. Should the CO
2
value continue to rise the fan speed will also increase until the CO
2
value reaches control value two at which point the fans will be running at normal speed. The fans will stop when the CO
2 value falls 160 ppm below control value one.
When used with 2-speed fans they will start using reduced speed when the CO
2
value rises above control value one and switch to normal speed when the CO
2
value reaches control value two. The fans will stop when the CO
2
value falls 160 ppm below control value one.
Manual Corrigo Ventilation, revision S Chapter 5 Functional description 47
If demand controlled ventilation is activated in combination with mixing dampers, and the CO
2
value rises above the setpoint value, the dampers will let in more outdoor air. The function is controlled by a PI-controller. See section 5.1.3 Heat exchanger types.
The function has a settable minimum running time.
In- and outputs
AI
CO
2
sensors
5.4.3 Extra control for external motor
External control of an external (fan) motor can be configured. The fan is started via either a digital input or a time channel.
A digital output activates the (fan) motor. A digital input is available for run time indication/motor protection.
Inputs and outputs
DI
Motor control 1
DI
DI
Motor control 1 indication
Motor control 2
DI
DO
DO
Motor control 2 indication
Motor control 1 start
Motor control 2 start
5.5 Pump control
Digital inputs and outputs can be configured for pump control.
All the pumps can use run indication with malfunction alarm or an alarm input connected to a motor protection or similar.
48 Chapter 5 Functional description Manual Corrigo Ventilation, revision S
5.5.1 Heating circuit
The circulation pump for the heating circuit will always run when the outdoor temperature is lower than a settable value (FS +10°C). At higher outdoor temperatures the pump will run when the heating output is larger than 0V.
If no outdoor temperature sensor has been configured, the stop temperature can be set to 0°C. Then the pump will only run on heat demand.
The pump has a settable stop delay.
The pump will be exercised once daily at 3 p.m. for one minute or the set shortest running time, whichever is the longest.
5.5.2 Exchanger circuit, liquid connected exchangers
The circulation pump for the exchanger circuit will run when the output to the exchanger valve is larger than 0V.
The pump has a settable, shortest running time.
The pump will be exercised once daily at 3 p.m. for 1 minute, or the set stop delay, whichever is the longest.
5.5.3 Cooling circuit
The circulation pump for the cooling circuit will run when the output to the cooling valve is larger than 0V.
The pump has a settable, shortest running time.
The pump will be exercised once daily at 3 p.m. for 1 minute, or the set stop delay, whichever is the longest.
Corrigo can be configured to block DX cooling if a ”Malfunction P1-Cooling” alarm should occur.
In- and outputs
Heating Exch. Cooling
AI
DO
DI
DO
DI
DO
DI
Outdoor temperature sensor
Start/stop circulation pump
Run ind/alarm, circ. pump
5.6 Damper control
5.6.1 Close-off dampers
The outdoor air and exhaust air ducts close-off dampers can be controlled by digital outputs or be hard-wired to the supply air fan relays for normal and reduced speed in such a fashion that the damper is open when the supply air fan is running. When using pressure controlled fans the digital activation signal is activated as soon as the fan has start conditions. This signal can be used to open the close-off damper.
5.6.2 Fire dampers
Fire dampers are normally configured to open on fire alarm. However, they can be configured to be normally open instead via the display.
Se chapter 16.15 for more information on the function.
Manual Corrigo Ventilation, revision S Chapter 5 Functional description 49
Fire damper exercising
Fire damper exercising can be configured. The exercise interval is settable. To be able to use this function, all the dampers must have end-position switches.
The digital input: "Fire damper end-switch monitoring" should be wired to all the fire damper end position switches.
90° i
Damper...
Damper 3
Damper 2
Damper 1
E
When the test cycle is initiated, the output "Fire dampers" will be activated and the dampers will begin to move. Within the set time (90 sec) the signal on "Fire damper end-switch monitoring" must change to indicate that the dampers have left their normal positions. If not an alarm will be triggered.
Then, within the set time, ”Fire damper, end-switch monitoring” must change again to indicate that all the dampers have reached the other end position. If not an alarm will be triggered.
When all dampers have reached the end position the output "Fire dampers" will be reset to drive the dampers back to normal position. Again, within the set time (90 sec) the signal on the input "Fire damper end-switch monitoring"must change to indicate that the dampers have left the end positions.
If not an alarm will be triggered.
Then, within the set time, "Fire damper end-switch monitoring" must change again to indicate that all the dampers are back to their normal positions. If not an alarm will be triggered.
The controller can be configured to stop the air handling unit during the damper testing.
All dampers must be wired to the same output in order to get correct results.
The fire alarm input can be configured as normally closed or normally open.
In- and outputs
DO
Outdoor air damper
DO
DO
DI
DI
Exhaust air damper
Fire damper
Fire alarm
Fire damper end switch monitoring
5.7 Extended running and External switch
The digital inputs for extended running can be used to force the unit to start although the timer says the running mode should be “Off”. Normal running always takes precedence over reduced speed.
"Extended Operation, Normal" takes precedence over the timer output for reduced speed.
For 2-speed fans and pressure/flow controlled fans there are inputs for normal speed and reduced speed. The unit will run for the set time. If the running time is set to 0 the unit will only run as long as the digital input is closed.
The signal ”External switch” will stop the unit, even if the timer or one of the signals "Extended
Operation, Normal" or "Extended Operation, Reduced" says it should stay in running mode.
In- and outputs
DI
Extended Operation, Normal
DI
DI
Extended Operation, Reduced
External switch
50 Chapter 5 Functional description Manual Corrigo Ventilation, revision S
5.8 Time-switch outputs
Up to five digital time-switch outputs can be configured. Each timer channel has a separate scheduler with two periods per week-day.
Timer output five can be used to control the function Recirculation. See 5.1.11.
In- and outputs
DO
Extra time channel 1
DO
DO
DO
Extra time channel 2
Extra time channel 3
Extra time channel 4
DO
Extra time channel 5
5.9 Alarms
Alarm handling
Alarms are indicated by the red alarm LED on the front or on E3-DSP.
All alarms can be monitored, acknowledged and blocked using the display and buttons or via E3-
DSP. There is also a digital input for acknowledging all alarms.
Alarm priorities
Alarms can be given different priority levels, A-alarm, B-alarm, C-alarm or not active. Digital outputs can be bound to act as alarm outputs for A-alarms or B/C-alarms or both A- and B/C alarms.
The digital outputs can be inverted, so that an inoperative alarm gives a high output and vice versa.
A- and B-alarms must be acknowledged to reset. C-alarms automatically reset as soon as there is no longer a cause for alarm.
Stop function
For each alarm there is the possibility of choosing whether activated alarm should stop control or not. Automatic restart will take place after removal of the alarm cause and the alarm has been acknowledged.
For some alarm types such as electric heating high temperature limit and water heating frost protection it would be dangerous to not stop the unit on alarm. Therefore, for such alarm types, the program will always reset the stop function to "Active" even if the operator should choose
"Inactive".
Unfortunately it is not possible to remove the display text concerning the stop function for these alarm types. This since the available program space demands that all alarms are treated in the same way in the display.
Note: For alarms that have been set to "Inactive", the extra stop function should also be set to
"Inactive", or unexpected malfunctions may occur.
Manual Corrigo Ventilation, revision S Chapter 5 Functional description 51
Alarm text
The alarm text that should be shown in the display when there is an alarm can be changed using E tool
©
. For more information, see the E tool
©
manual.
In- and outputs
DO
Sum alarm A + B + C
DO
DO
Sum alarm A
Sum alarm B/C
External alarms
There are 11 possible external alarms. One digital input called ”External Alarm” and 10 digital inputs called ”Extra alarm”.
52 Chapter 5 Functional description Manual Corrigo Ventilation, revision S
Chapter 6 Starting and stopping the unit
6.1 Start conditions
The unit will be started and will run when any one of the following conditions is met:
1. Timer output for normal speed or timer output for reduced speed is ON
2. The unit is started manually using the Corrigo front panel or via E3-DSP
3. Digital input for extended running is activated
4. Support control is activated and the present room temperature is higher/lower than the preset starting value (Support heating/cooling)
5. Demand controlled ventilation is activated and the value at the CO2 sensor is higher than the preset start condition.
6. Recirculation control has been configured and the conditions for recirculation control are fulfilled.
Possibility to block automatic restart at power-up
The function ”Automatic restart at power-up” makes it possible to block automatic restart of the unit at power-up. At power-up, the B-alarm ”Restart blocked after power on” is generated. Once this alarm has been acknowledged, the unit will start.
6.2 Stop conditions
The unit will be stopped when any of the following conditions are met:
1. Timer output for normal speed or timer output for reduced speed are OFF, and the signal for extended running is OFF.
2. Activated frost protection alarm. The unit will restart on resetting of the alarm.
3. Activated fire detector if the function has been configured. The unit will restart on resetting of the alarm.
4. If the unit has electric heating and the supply fan flow switch alarm or the high temperature limit alarm is activated.
5. Activation of external switch.
6. The unit is stopped manually using the Corrigo front panel or E3-DSP.
7. Support control is activated and the present room temperature is higher/lower than the preset stop value (support heating/cooling)
8. Demand controlled ventilation is activated and the value at the CO
2
sensor falls below the pre-set start condition less the set differential.
9. Recirculation control is active and the conditions for recirculation control are no longer fulfilled.
10. At an activated alarm configured with the extra function of stopping the unit on activation.
The unit will restart on resetting of the alarm.
Manual Corrigo Ventilation, revision S Chapter 6 Starting and stopping the unit 53
6.3 Start sequence
Start of the unit will run according to the following sequence:
1. If the controller is configured for water heating and has an outdoor temperature sensor and the outdoor temperature is below +3ºC the heating valve is opened and the heating circulation pump is started.
2. If the controller is configured with a heat exchanger and has an outdoor temperature sensor and the outdoor temperature is below +15ºC the heat exchanger will be run at 100% capacity for a pre-set time.
3. Signals for outdoor air and exhaust air dampers are activated.
4. The extract air fan or the pressure control of the extract air fan will be started after a preset time.
5. The supply air fan or the control of the supply air pressure will be started after a preset time.
6. Thereafter temperature control according to the configured control mode is started. Electric heating, if configured, is not started until a run signal from the supply air fan or flow switch has been received. And not yet activated pumps will be started.
7. After a pre-set delay, the alarm handling system is activated. The unit is in normal running mode.
6.4 Stop sequence
Stopping of the unit will run according to the following sequence:
1. Deactivation of the alarm handling system.
2. Electric heating, if configured, is shut down.
3. After individually set delay times the fans are stopped.
4. Outdoor air and exhaust air dampers are shut down.
5. Actuator signals are set to zero and the pumps are stopped.
6. If shutdown mode is configured, it will be activated.
In order to maintain an acceptable supply air temperature as long as possible, the heat exchanger will continue to run during the stop sequence until everything else is stopped.
54 Chapter 6 Starting and stopping the unit Manual Corrigo Ventilation, revision S
Chapter 7 Display, LEDs and buttons
7.1 Display
The display has four rows of 20 characters and is backlit. The illumination is normally dimmed, but is activated as soon as a button is pressed. The illumination will be dimmed again after a period of inactivity.
7.2 LEDs
This section is applicable to Corrigo units with display and buttons but also to the hand terminal E3-
DSP which can be connected to Corrigo units without display and buttons.
Room units are available with or without display, or as a touch display (see instructions and product sheets for ED-RU..., ED-RU-D... and ED-TCV).
There are two LEDs on the front: The alarm LED marked with the symbol. The “write enable”
LED marked with the symbol.
The four LEDs placed next to the upper terminal strip will be described later.
7.3 Buttons
There are seven buttons: four arrow buttons which will be called UP, DOWN, RIGHT and LEFT.
The menus in the Corrigo are organized in a horizontal tree structure. The UP/DOWN buttons are used to move between menus at the present menu level. The RIGHT/LEFT buttons are used to move between menu levels. When changing parameters the UP/DOWN buttons are used to increase/decrease the value of the parameter and the RIGHT/LEFT buttons to move between digits within the parameter.
• The OK button is used to confirm the choice of a parameter setting. See more in the section
"Change parameters" below.
• The C button is used to abort an initiated parameter change and restore the original value.
• The ALARM button, marked with a red button top, is used to access the alarm list.
7.4 Navigating the menus
The choice of access level/user access determines which menus are shown in the menu system.
The start display, the display normally shown, is at the root of the menu tree.
Manual Corrigo Ventilation, revision S Chapter 7 Display, LEDs and buttons 55
Regulator vent. sys
2008-11-20 13:30
System: Running
Sp: 18.0 Act: 18.2°C
Pressing DOWN will move you through the menu choices at this, the lowest level. UP will move you back through the choices. Which menus are shown depends on which access level you are using
(see chapter eight for more information about logging on to higher levels).
Using Normal access, the access which normally does not require logging on, only a few basic menus are shown:
Running mode
Temperature
Air control
Humidity control
Time settings
Access rights
In the menu "Running mode", you can view and set the unit’s running mode, view selected control functions and view the alarm events.
In the menus "Temperature", "Air control" and "Humidity control", you can view actual values and setpoint values. Setpoints can only be changed if you have Operator or Admin access.
In "Time settings", the time, date and set running times are shown. Values can only be changed if you have Operator or Admin access.
Without logging on to Operator or System level, you are only authorised to change the unit’s running mode and acknowledge alarms.
With Operator access, you can access more information and change other operation parameters like setpoints and time functions.
With Admin access, you have full access to the complete menu system and can change all parameters.
To enter a higher menu level, use UP or DOWN to place the display marker opposite the menu you wish to access and press RIGHT. At each level there may be several new menus through which you may move using the UP and DOWN buttons.
Sometimes there are further submenus linked to a menu or menu item. This is indicated by an arrow symbol at the right-hand edge of the display. To choose one, use RIGHT again. To back down to a lower menu level, use LEFT.
Change parameters
In some menus there are parameters that can be set. This is indicated by the yellow LED with flashing.
A quick blinking (2 times/s) indicates that the parameter can be changed using the present user access.
A slower blinking (1 time/s) indicates that a higher user access is required to change the parameter.
To change a parameter, first press the OK button. If you need higher authority than you have to change the parameter, a log on menu will be displayed, see chapter eight below. Otherwise, a cursor will appear at the first settable value. If you wish to change the value, do so by pressing the UP and
DOWN buttons.
In numbers containing several digits you can move between the digits using the LEFT / RIGHTbuttons.
When the desired value is displayed press OK.
If there are further settable values displayed the cursor will automatically move to the next one.
To pass a value without changing it, press OK.
To abort a change and return to the initial setting, press and hold the C-button until the cursor disappears.
56 Chapter 7 Display, LEDs and buttons Manual Corrigo Ventilation, revision S
Chapter 8 Access rights
Running mode
Temperature
Time settings
Access rights
There are four different access levels. The Admin level has the highest access, while the Service,
Operator and basic “no-log on” level have the lowest. The choice of access level determines which menus are shown, as well as which parameters can be changed in the displayed menus.
Admin level gives full read/write access to all settings and parameters in all menus.
Service level gives access to all menus except the submenus "Configuration"/"In- and Outputs" and
"Configuration"/"System".
Operator level gives access to all menus except ”Configuration”.
The basic level only permits changes in "Running mode" and gives read-only access to a limited number of menus.
Repeatedly press the DOWN button when the start-up display is shown until the arrow-marker to the left of the text-list points to "Access rights". Press RIGHT.
Log on
Log off
Change password
8.1 Log on
Log on
Enter password:****
Actual level:None
In this menu it is possible to log on to any access level by entering the appropriate 4-digit code.
The log on menu will also be displayed should you try to gain access to a menu or try to do an operation requiring higher authority than you have.
Press the OK button and a cursor marker will appear at the first digit position. Repeatedly press the
UP button until the correct digit is displayed. Press the RIGHT button to move to the next position.
Repeat the procedure until all four digits are displayed. Then press OK to confirm. After a short while the text on the line: Present level will change to display the new log on level. Press the LEFT button to leave the menu.
8.2 Log off
Use this menu to log off from the present level to the basic "no-log on" level.
Log off?
No
Actual level:Admin
Automatic logoff
If the access level is Operator, Service or Admin, the user will automatically be logged off to
Normal after a settable time of inactivity. See also the section "Automatic logoff". It is possible to remove the automatic logoff, see 8.4 below.
Manual Corrigo Ventilation, revision S Chapter 8 Access rights 57
8.3 Change password
As default Corrigo comes with the following passwords for the different levels:
Admin
Service
Operator
Normal
1111
2222
3333
5555
You can only change the password for log on levels lower or equal to the presently active level, i.e. if you are logged in as Admin you can change all passwords, but as Operator you can only change the Operator and Normal passwords. There is no point in changing the Basic password since access to that level is granted automatically to all users.
Change password for level:Operator
New password: ****
Note: Do not set the password for Admin to the same value as the password for a lower level since this will prevent access to the Admin level.
Forgotten your password? If the password for Admin has been changed and then lost, a temporary password can be obtained from Regin. This code is date dependent and only valid for one day.
8.4 Change password to remove automatic logoff
If you want to remove the automatic logoff, change the password of the desired level to 0000. After changing the password, the level will always be activated.
Note: This should be done with consideration, since no alarm is continuously given that a certain level has been activated. However, it is very useful in certain cases, if the unit is intended to be used by educated personnel or for instance at commissioning.
58 Chapter 8 Access rights Manual Corrigo Ventilation, revision S
Chapter 9 Running mode
Running mode
Temperature
Time settings
Access rights
Collected here are a number of menus showing running mode, selected functions, alarm events and status of inputs and outputs.
Running mode
Selected functions
Alarm events
Input/Output
9.1 Running mode, unit
The unit’s running mode can be changed without logging on.
Running mode
Auto
Running time
SAF: 14.6 h
Running time
EAF: 14.6 h
9.2 Selected functions
Shows the present configuration. These are read-only menus. No changes can be made here.
Control function
Supply air control
Fan control
1-speed
Heating: Water
Exchanger: Plate exc
Cooling: Water
Free cool active: No
Support control
Active: Yes
CO2/VOC active
If timer on
Manual Corrigo Ventilation, revision S Chapter 9 Running mode 59
Fire damper funct
Not active
Operation when alarm
Stopped
Frost protection
Active
Cooling recovery
No
External setpoint
Not active
9.3 Alarm events
Alarm log which contains the 40 latest alarm events. The most recent event is listed first. The alarm log can only be used for viewing the alarm history. Alarms are handled in a special area, see section
18.1.
24 Nov 14:32 B
Malf. SAF
Acknowledged
9.4 Inputs/Outputs
This is a read-only menu block showing the present values for all configured inputs and outputs. If correction factors have been applied to input values, the corrected values will be shown.
This is a read-only menu. No changes can be made here.
AI
DI
UI
AO
DO
Analogue inputs and digital outputs are shown here as examples.
Analogue inputs
AI1:18.5 Outd temp
AI2:20.3 Supply temp
AI3:28.2 Extract temp
AI4:19.9 Room temp1
Digital outputs
DO1:Off SAF 1/1-speed
DO2:Off EAF 1/1-speed
DO3: On P1 heating
DO4:Off Sum alarm
60 Chapter 9 Running mode Manual Corrigo Ventilation, revision S
Chapter 10 Temperature
Running mode
Temperature
Time settings
Access rights
Here you can view all actual and setpoint values for temperature control. The menu is visible to all users, regardless of log on level. However, to make changes you need at least Operator authority.
The below menus are available, providing the corresponding input has been activated.
Setpoints are available with a separate value for reduced speed. This is achieved using a temperature offset when the unit runs in reduced speed.
The temperature is available in either Celsius (°C) or Fahrenheit (°F).
Setpoint.
Control mode 1: Supply air control.
Outd temp:18.4°C
Supply air temp
Act: 19.8°C Setp
Setp: 20.0°C
Submenu: Setpoint
Supply air temp
Setp: 20.0°C
Control mode 2: Outdoor compensated supply air control.
Control mode 5: Outdoor temperature dependent supply air or room temperature control.
Control mode 6: Outdoor temperature dependent supply air or extract air control.
Outd temp:18.4°C
Supply air temp
Act: 19.8°C Setp
Setp: 20.0°C
Submenu: "Setpoint curve"
In control modes five and six, the setpoint relationship is used when supply air control is active.
Use the eight breakpoints to generate a "setpoint"/"outdoor temperature" relationship.
Both the outdoor and supply air temperatures are changeable for the curve.
Outdoor comp setp
-20.0°C = 25.0°C
-15.0°C = 24.0°C
-10.0°C = 23.0°C
Manual Corrigo Ventilation, revision S Chapter 10 Temperature 61
Outdoor comp setp
-5.0°C = 23.0°C
0.0°C = 22.0°C
5.0°C = 20.0°C
Outdoor comp setp
10.0°C = 18.0°C
15.0°C = 18.0°C
In-between-values are calculated using straight lines between breakpoints. Setpoints for temperatures lower than the lowest breakpoint and higher than the highest breakpoint are calculated by extending the line between the two last breakpoints at either end.
Example: At the lower end the setpoint is increasing by 1°C for every 5 °C lowering of the outdoor temperature. So the setpoint at –23°C would be 25°C + .6x 1.0°C = 25.6°C.
Setpoint. Control mode 3 and 5: Cascaded room temperature control.
Room temp1
Actual: 22.0°C
Setp: 21.5°C
In control mode five, the setpoint is used when cascade connected room control is active.
Submenu for setting the min and max limitation temperatures for the supply air.
If cascade control max/min supply setp
Max: 30.0°C
Min: 12.0°C
If two room sensors have been configured you will also get the following menu:
Room temp2
Actual: 21.8°C
Control mode 4: Cascade connected extract air control.
Control mode 6: Outdoor temperature-dependent supply or extract air control.
Extract air temp
Actual: 21.0°C
Setp: 21.1° C
In control mode six, the setpoint is used when cascade connected extract air control is active.
Submenu for setting the min. and max. limitation temperatures for the supply air.
If cascade control max/min supply setp
Max: 30.0°C
Min: 12.0°C
62 Chapter 10 Temperature Manual Corrigo Ventilation, revision S
Control mode 7: Outdoor temperature compensated room control.
Room temp1
Actual: 22.0°C
Setp: 21.5°C
Outdoor comp setp
-20.0°C = 25.0°C
-15.0°C = 24.0°C
-10.0°C = 23.0°C
Outdoor comp setp
-5.0°C = 23.0°C
0.0°C = 22.0°C
5.0°C = 20.0°C
Outdoor comp setp
10.0°C = 18.0°C
15.0°C = 18.0°C
If cascade control max/min supply setp
Max: 30.0°C
Min: 12.0°C
In control mode seven, the room setpoint is compensated based on outdoor temperature. Note that the curve must be reset for optimum functionality.
Both the outdoor and room temperature are changeable for the curve.
Control mode 8: Outdoor temperature compensated extract air control.
Extract air temp
Actual: 21.0°C
Setp: 21.1° C
Outdoor comp setp
-20.0°C = 25.0°C
-15.0°C = 24.0°C
-10.0°C = 23.0°C
Outdoor comp setp
-5.0°C = 23.0°C
0.0°C = 22.0°C
5.0°C = 20.0°C
Outdoor comp setp
10.0°C = 18.0°C
15.0°C = 18.0°C
If cascade control max/min supply setp
Max: 30.0°C
Min: 12.0°C
Manual Corrigo Ventilation, revision S Chapter 10 Temperature 63
In control mode 8, the extract air setpoint is compensated based on outdoor temperature. Note that the curve must be adjusted for optimal functionality.
Both the outdoor and extract air temperature are changeable for the curve.
Support control heating
Support heating
Room temp for
Start: 15.0°C
Stop: 21.0°C
Support control cooling
Support cooling
Room temp for
Start: 30.0°C
Stop: 28.0°C
Frost protection temperature
Frost protection
Actual: 30.9°C
Deicing exchanger
Deicing exchanger
Actual: 11.2°C
Setp: -3.0°C
Hysteresis: 1.0°C
Heat exchanger efficiency monitoring
Efficiency exch
Actual: 93%
Output exchanger
Actual: 100%
Recirculation (see 5.1.11)
Temp.setpoint when recirc. (Supply/
Extract/Room)
18.0°C
Offset SAF when frequency control and recirculation
0.0 Pa
"Offset SAF" makes it possible to add an offset to the setpoint during normal operation. If pressure control has been configured, offset is entered in Pa or inch of water gauge (in.wg.). A factor (x100) is used in both the program and display when the unit “in.wg.” has been selected.
During flow control, it is set in m
3
/h and during manual control in percent (%).
Extra unit (see 5.2)
Extra unit
Actual: 21.2°C
Setp: 20.0°C
64 Chapter 10 Temperature Manual Corrigo Ventilation, revision S
Enthalpy control
Enthalpy indoors
33.8 kJ/Kg
Enthalpy outdoors
35.0 kJ/Kg
Submenus
Outd temp
Act: 12.8 °C
Humidity outdoors
Act: 98.7% RH
Indoor temp
Act: 17.2 °C
Humidity indoors
Act: 55.7 % RH
Status enthalpy control
Override cool recovery due to enthalpy
Active
Manual Corrigo Ventilation, revision S Chapter 10 Temperature 65
Chapter 11 Air control
Pressure control SAF and EAF
Pressure control can be entered in pascal (Pa) or inch water gauge (in.wg.). A factor (x100) is used in both the program and display when the unit “in.wg.” has been selected.
When using pressure or flow controlled fans, the setpoint can be temperature compensated.
The compensation has the default value 0 Pa, i.e. no compensation is added. The compensation is linear between the setting points. The compensation can be positive or negative.
The same compensation normally applies to both fans. Using E tool
©
, you can choose to compensate only the supply air fan.
The same compensation is applied to both "Normal" and "Reduced", which means that you need to take caution when using this function so the pressure does not become too low or even negative when running reduced speed.
Depending on the choice of fan control, different combinations of the menus below will be shown.
Pressure control SAF (there are corresponding menus for EAF)
Pressure ctrl SAF
Actual: 480 Pa
Setp: 490 Pa
Submenu "Setpoint"
Pressure ctrl SAF
Setp 1/1: 490 Pa
Setp 1/2: 300 Pa
Submenu "Outdoor compensation"
Outdoor comp setp
-20 °C = -50 Pa
10 °C = 0 Pa
Act. Comp -5 Pa
Submenu "Extra compensation curve"
Comp sens:Roomtemp1
15 °C = 0 Pa
20 °C = 0 Pa
25 °C = 0 Pa
Submenu “Controller output compensation if cooling”
Controller output comp if cooling
0 at HCOUT= 0%
100 at HCOUT= 0%
Submenu “Controller output compensation if heating”
Controller output comp if heating
0 at HCOUT= 0%
100 at HCOUT= 0%
The compensation follows the current control quantity, in this case pressure.
Submenu “Controller output compensation”
66 Chapter 11 Air control Manual Corrigo Ventilation, revision S
Controller output compensation
Not active
Submenu “Compensation only when”
Compensation only when
1/1-speed: No defrosting: No
Flow units can be measured in both m
3
/h (cubic meters per hour) and in CFM (cubic feet per minute).
Flow control SAF (there are corresponding menus for EAF)
Flow control SAF
Actual: 1800 m3/h
Setp: 2000 m3/h
Submenu "Setpoint"
Flow control SAF
Setp 1/1: 2000 m3/h
Setp 1/2: 1000 m3/h
Submenu "Outdoor compensation"
Outdoor comp setp
-20 °C = 0.0 m3/h
10 °C = 0.0 m3/h
Act comp:0.0
Submenu "Extra compensation curve"
Comp sens:Roomtemp1
15 °C = 0 m3/h
20 °C = 0 m3/h
25 °C = 0
Submenu “Controller output compensation if cooling”
Controller output comp if cooling
0 at HCOUT= 0%
100 at HCOUT= 0%
Submenu “Controller output compensation if heating”
Controller output comp if heating
0 at HCOUT= 0%
100 at HCOUT= 0%
The compensation follows the current control quantity, in this case pressure.
Submenu “Controller output compensation”
Controller output compensation
Not active
Submenu “Compensation only when”
Compensation only when:
1/1-speed: No defrosting: No
Manual Corrigo Ventilation, revision S Chapter 11 Air control 67
Flow units can be measured in both m
3
/h (cubic meters per hour) and in CFM (cubic feet per minute).
Manual frequency control SAF (there are corresponding menus for EAF)
Frequency control manual SAF
Output: 75%
Submenu "Setpoint"
Frequency control manual SAF
Output 1/1: 75%
Output 1/2: 50%
Submenu "Outdoor compensation"
Outdoor comp. outp.
-20 °C = 0 %
10 °C = 0 %
Act comp: 0 %
Submenu "Extra compensation curve"
Comp sens:Roomtemp1
15 °C = 0 %
20 °C = 0 %
25 °C = 0 %
Submenu “Controller output compensation if cooling”
Controller output comp if cooling
0 at HCOUT= 0%
100 at HCOUT= 0%
Submenu “Controller output compensation if heating”
Controller output comp if heating
0 at HCOUT= 0%
100 at HCOUT= 0%
The compensation follows the current control quantity, in this case %. The function should not be used when fan setpoint is set to %, as the fans will then risk stopping in some modes.
Submenu “Controller output compensation”
Controller output compensation
Not active
Submenu “Compensation only when”
Compensation only when:
1/1-speed: No defrosting: No
Flow units can be measured in both m
3
/h (cubic meters per hour) and in CFM (cubic feet per minute).
CO2
CO2
Actual:920 ppm
Setp:850 ppm
68 Chapter 11 Air control Manual Corrigo Ventilation, revision S
Chapter 12 Humidity control
Humidity control can be configured as Humidification, Dehumidification or both Humidification and Dehumidification.
Two humidity sensors can be connected, a room sensor for control and an optional duct sensor for maximum limiting. The limit sensor can be omitted.
The humidity control is handled by a PI-controller.
The humidity sensors must give 0…10 V DC for 0…100 % RH.
Humidity sensor room
Humidity room
Actual: 51.9% RH
Setp: 50.0% RH
Humidity sensor duct
Humidity duct
Actual: 72.2% RH
Max limit: 80.0% RH
Hyst: 20.0% RH
If the maximum limitation is 80 % RH and the hysteresis is 20 % RH, the controller output signal will begin decreasing at 60 % RH. When halfway to 80 % RH (i.e. when at 70 % RH), half the output signal will be damped. If the humidity in the duct still reaches 80 % RH, the entire output signal will be damped.
Manual Corrigo Ventilation, revision S Chapter 12 Humidity control 69
Chapter 13 Time settings
Running mode
Temperature
Time settings
Access rights
General
Corrigo has a year-base clock function. This means that a week-schedule with holiday periods for a full year can be set. The clock has an automatic summertime/wintertime change-over.
Individual schedules for each week-day plus a separate holiday setting. Up to 24 individual holiday periods can be configured. A holiday period can be anything from one day up to 365 days. Holiday schedules take precedence over other schedules.
Each day has up to two individual running periods. For two-speed fans and pressure controlled fans there are daily individual schedules for normal speed and reduced speed, each with up to two running periods.
Up to 5 digital outputs can be used as timer controlled outputs. Each with individual weekschedules with two activation periods per day. These outputs can be used to control lighting, doorlocks etc.
Time/Date
Timer normal speed
Timer reduced speed
Extended running
Timer output1
Timer output2
Timer output3
Timer output4
Timer output5
Holidays
13.1 Time / Date
This menu shows and permits the setting of time and date.
Time is shown in 24-hour format.
Date is shown in the format YY:MM:DD.
Time: 18:21
Date: 04-08-04
Weekday: Wednesday
13.2 Timer Normal speed
There are eight separate setting menus, one for each weekday and one extra for holidays.
Holiday schedules take precedence over other schedules.
For 24 hour running, set a period to 0:00 – 24:00.
To inactivate a period, set the time to 00:00 – 00:00. If both periods of a day are set to 0:00 – 0:00, the unit will not run at 1/1-speed that day.
Normal speed
Monday
Per 1: 07:00 – 16:00
Per 2: 00:00 - 00:00
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If you want to run the unit from one day to another, e.g. from Mon 22:00 to Tue 09:00, the desired running time for both days must be entered.
Normal speed
Monday
Per 1: 07:00 – 16:00
Per 2: 22:00 - 24:00
Normal speed
Tuesday
Per 1: 00:00 – 09:00
Per 2: 00:00 - 00:00
13.3 Timer Reduced speed
These settings will be ignored if single speed fans are configured.
Should periods for normal speed and periods for reduced speed overlap, normal speed takes precedence.
There are eight separate setting menus, one for each weekday and one extra for holidays. Holiday schedules take precedence over other schedules. For 24 hour running, set a period to 00:00 – 24:00.
To disable a period, set it to 00:00 – 00:00. If both periods of a day are set to 00:00 – 00:00, the unit will not run at "Reduced speed" that day.
Reduced speed
Sunday
Per 1: 10:00 – 16:00
Per 2: 00:00 - 00:00
13.4 Extended running
Digital inputs can be used to force the unit to start although the timer says the running mode should be “Off”.
For 2-speed fans and pressure/flow controlled fans, inputs for normal speed and reduced speed can normally be used.
The unit will run for the set time. If the running time is set to zero the unit will only run as long as the digital input is closed.
Extended running
60 min
Time in ext running
0 min
13.5 Timer outputs 1…5
Up to 5 digital outputs can be used as timer controlled outputs. Each with individual weekschedules with two activation periods per day. Each output has eight separate setting menus, one for each weekday and one extra for holidays. Holiday schedules take precedence over other schedules.
Only the time channels which have been configured, i.e. have been wired to a digital output, will be shown.
Timer output2
Wednesday
Per 1: 05:30 – 08:00
Per 2: 17:00 – 23:00
If the function "Recirculation" has been configured (see 5.1.11), "Timer output 5" can be used to control start/stop of the recirculation function.
Manual Corrigo Ventilation, revision S Chapter 13 Time settings 71
13.6 Holidays
Up to 24 separate holiday periods for a full year can be set.
A holiday period can be any number of consecutive days from 1…365. The dates are in the format:
MM:DD.
When the present date falls within a holiday period, the scheduler will use the settings for the weekday “Holiday”.
Holidays (mm:dd)
1: 01-01 – 02-01
2: 09-04 – 12-04
3: 01-05 – 01-05
72 Chapter 13 Time settings Manual Corrigo Ventilation, revision S
Chapter 14 Manual / Auto
General
In this menu the running mode of all the configured output signals and a number of control functions can be manually controlled. This is a very handy feature which simplifies the checking of individual functions in the Corrigo.
The running mode for the whole unit is set in the menu "Running mode". See section 9.1.
The supply air controller's output signal can be manually set (Manual/Auto) to any value between 0 and 100 %. The temperature output signals will change accordingly if they are in "Auto" mode. It is also possible to manually control each of the temperature output signals individually.
All the configured digital outputs can be set to "Auto", "Off" or "On".
Since leaving any of the outputs in manual control will disrupt the normal control, an alarm will be generated as soon as any output is set to a manual mode.
Since the menus vary according to the configuration of the outputs only the most common ones will be shown here. For the digital signals you can normally choose between "Auto" and "On" and "Off" or similar words indicating the two possible manual states of the digital output.
Manual/Auto
Supply air controller running mode
Can be set to "Auto", "On" or "Off". In manual "On" mode the output signal can be set 0…100 %.
The outputs "Y1", "Y2", "Y3", "Y4" and "Y5” if in "Auto" mode, will follow the signal according to the set split values.
Supply temp contr
Auto
Manual setting
42.0
Start signal "SAF" and "EAF"
Can be set to manual 1/1-speed, manual 1/2-speed and off. Manual 1/2-speed is not valid for single speed fans.
Supply air fan
Auto
Extract air fan
Auto
With pressure controlled fans you get the following menu: Can be set to "Auto", "Manual normal",
"Manual reduced", "Manual" and "Off". In "Manual" mode the output signal can be set 0…10 V.
SAF: Auto
Manual set: 0.0
Manual Corrigo Ventilation, revision S Chapter 14 Manual / Auto 73
EAF: Auto
Manual set: 0.0
Y1 heating output
Heating
Auto
Manual set: 0.0
Y2 heat exchanger
Exchanger
Auto
Manual set: 0.0
Y3 cooling
Cooling
Auto
Manual set: 0.0
Humidification/dehumidification
Humidification/
Dehumidification
Auto
Manual set: 0%
Circulation pumps: Heating, Exchanger and Cooling
P1 heating
Auto
P1 exchanger
Auto
P1 cooling
Auto
Dampers: Outdoor air, Recirculation air, Exhaust air and Fire dampers
Outdoor air damper
Auto
Exhaust air damper
Auto
Extra controller
Extra ctrl unit
Auto
Manual set: 0.0
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Extra sequence Y4
Extra sequence Y4
Auto
Manual set: 0.0
Extra sequence Y5
Extra sequence Y5
Auto
Manual set: 0.0
Manual Corrigo Ventilation, revision S Chapter 14 Manual / Auto 75
Chapter 15 Settings
In this menu group all settings for all activated functions should be available. The menu group is only available when logging on as Admin. Depending on what choices have been made during configuration, some of the alternatives in this menu group may not be shown.
Settings
Control temp
Control pressure
Control flow
Control humidity
Control CO2
Control extra unit
Alarm settings
15.1 Control temp
Supply air controller
Supply air control
P-band: 33.0 °C
I-time: 100.0 sec
The set P-band for the supply air controller is for the whole controller signal. This means that the Pband for each sequence is proportionate to the split percentage values given to sequences.
Example:
The P-band for the supply air controller has been set to 33K. HCOut is set so that cooling receives
0…30 % = 30 %, the exchanger receives 32…50 % = 18 % and heating receives 54…100 % = 46
%. The individual P-bands will then be:
Cooling: 30 % of 33°C = 10°C.
Exchanger: 18 % of 33°C = 6°C.
Heating: 46 % of 33°C = 15°C.
The remaining 2.5°C constitute the neutral zone between cooling and exchanger and between exchanger and heating.
The split values are set in the configuration submenu Other parameters.
If cascade control max/min supply setp
Max: 30°C
Min: 12°C
Room controller
Room control
P-band: 100.0 °C
I-time: 300.0 s
Extract air controller
Extract air control
P-band: 100.0 °C
I-time: 300.0 s
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Shutdown mode
Shutdown mode
P-band: 100.0 °C
I-time: 100 s
Frost protection temperature
Frost protection
Frost protection
Active
Setp shutdown: 25°C
P-band active: 5°C
Fast stop at frostprotection alarm
Yes
"Setp shutdown" is the shutdown mode setpoint.
P-band active 5°C means that the frost protection controller will start overriding the heating output when the frost protection temperature is less than five degrees above the set frost alarm limit. The default alarm limit is 7°C. It can be changed in the menu Settings/Alarm settings/Alarm limits/Alarm limit frost protection.
Exchanger de-icing
Deicing
P-band: 100 °C
I-time: 100 s
15.2 Control pressure
Pressure control SAF
Pressure control SAF
P-band: 500 Pa
I-time: 60 s
Min.output: 0 %
Pressure control EAF
Pressure contr EAF
P-band: 500 Pa
I-time: 60 s
Min.output: 0 %
15.3 Control flow
Flow control SAF
Flow control SAF
P-band: 1000 m3/h
I-time: 60 s
Min.output: 0 %
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Flow control EAF
Flow control EAF
P-band: 1000 m3/h
I-time: 60 s
Min.output: 0 %
15.4 Humidity control
Control humidity
P-band: 100.0 %RH
I-time: 300.0 s
15.5 Control CO
2
Control CO2
P-band: 100.0 ppm
I-tid: 100.0 s
15.6 Control extra unit
Control extra unit
P-band: 33.0 °C
I-time: 100.0 s
15.7 Alarm settings
Alarm settings
Alarm limits
Alarm delays
Restore alarm
15.7.1 Alarm limits
Alarm limits, supply air
Al lim supply air
Control dev: 10.0 °C
High temp: 30.0 °C
Low temp: 10.0
Alarm limits, extract air
Al lim extract air
High temp: 30.0 °C
Low temp: 10.0 °C
Alarm limits, room
Al lim room air
High temp: 30.0 °C
Low temp: 10.0 °C
Alarm limit frost protection
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Alarm limit frost protection
7.0 °C
Alarm limit, pressure
Control dev SAF
40.0 Pa
Control dev EAF
40.0 Pa
Alarm limit Humidity
Control deviation humidity: 10 %
Alarm limit, exchanger efficiency
Low efficiency
50.0 %
Service alarm filter
Service alarm
(Filter alarm)
Time until alarm activates: 0 month
15.7.2 Alarm delays
Alarm delay, supply air
Al del supply air
Control dev: 30 min
High temp: 5 s
Low temp: 5 s
Alarm delay, extract air
Al del extract air
High temp: 30.0 min
Low temp: 30.0 min
Alarm delay, room
Al. del. room air
High temp: 30.0 min
Low temp: 30.0 min
Alarm delay, frost protection
Alarm delay
Frost prot.: 0 s
Frost risk: 0 s
Alarm delay control SAF and EAF
Alarm delay control dev pressure
SAF: 30 min
EAF: 30 min
Alarm delay, Humidity
Manual Corrigo Ventilation, revision S Chapter 15 Settings 79
Alarm delay control deviation humidity
30 min
Alarm delay, exchanger efficiency
Low efficiency
30 min
Alarm delay, fan malfunction (SAF and EAF)
Alarm delay malfunction
SAF: 120 s
EAF: 120 s
Alarm delay, pump malfunction
Alarm delay malfunc
P1 heating: 5 s
P1 cooling: 5 s
P1 exchan: 20 s
Alarm delay, misc.
Filter guard1: 180 s
Filter guard2: 180 s
Flow switch: 5 s
Frost prot: 0 s
Ext. Frost prot. DI refers to the digital input signal Deicing Heat exchanger.
Alarm delay, misc. 2
Alarm delay
Deicing DI: 0 s
Fire alarm: 0 s
Ext alarm: 0 s
Frost protection DI refers to the digital input signal De-icing thermostat exchanger.
Alarm delay, misc. 3
Alarm delay
Elec. heat: 0 s
Sensor error: 5 s
Rot sent exch: 20 s
15.7.3 Restore alarm
Service alarm
(Filter alarm)
Time counter set to zero: No
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15.8 Save and restore settings
Restore factory settings: No
Restore user settings: No
In this menu, it is possible to restore all parameters to their factory settings or to the user settings they were saved as earlier, see below.
Save user settings
No
The present configuration can be saved in a separate memory area and can later be restored using the previous menu, "Restore user settings".
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Chapter 16 Expansion model
16.1 Ports
The ports are used for connecting to E tool
©
and, possibly, a SCADA system. In an E…3W-3 model, port 3 is the TCP/IP output.
The serial ports (ports 1 and 2) are used for expansion purposes, e.g for connection of expansion units, external display and Vacon NXL / Lenze SMV / Omron V1000 / Emerson / LS / EBM /
Danfoss FC 101 / EC Blue frequency converters. A maximum of two frequency converters and two expansion units can be connected. The units must be Corrigo controllers. There is no point in using slave controllers with a display, since the display cannot be used or show anything. However, an
E3-DSP is required when initially starting up slave units without display. All configuration takes place using E tool
©
, or via the display on the master controller. All inputs and outputs can be viewed
in the master controller. For configuration, see chapter 17.
As of version 3.1, frequency converters and expansion units can be used together.
Ports 1 and 2 have the same functions. They can, however, not be configured to have the same function at the same time. The TCP/IP port (port 3) can be used to connect the controller to
CLOUDigo or, optionally, to load a web page to the unit. For more information, see the E tool
© manual.
16.2 Wiring
2 and 3 port Corrigo units are available with or without display. Both models have a TCP/IP port and one or two serial ports. For a list of the various models, see the Corrigo model overview in chapter 2.
16.2.1 Vacon / Lenze / Omron / Emerson / LS / EBM / EC
Blue frequency converters
If the Corrigo is to control either one or two Vacon NXL / Lenze SMV / Omron V1000 / Emerson /
LS / EBM / Danfoss FC 101 / EC Blue frequency converters, this will take place via Modbus communication using port 1 or 2.
It is possible to run two parallel connected frequency converters for supply air and two parallel connected frequency converters for extract air. The supply air fan will have address 1 and the parallel supply air fan address 3. The extract air fan will have address 2 and the parallel extract air fan address 4.
For additional settings for frequency converters, see appendix at the end of this document.
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16.2.2 Expansion units EXOline
Communication between the master and expansion units takes place via EXOline. The slave controllers will be given the addresses 241:1 and 241:2 (ELA:PLA) respectively.
16.2.3 Expansion units LON
For a 2 or 3 port Corrigo master to be able to communicate via LON, the first expansion unit must have a LON port. Communication between the master and expansion units takes place via EXOline.
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Chapter 17 Configuration
Start by logging on as Admin. See chapter 8.
Move the marker using the DOWN and UP buttons until it is opposite the menu ”Configuration” and press RIGHT.
The configuration main menu is shown (different menus are visible depending on the configured inputs and outputs).
Inputs/Outputs
Sensor settings
Control function
Fan control
Extra control unit
Extra sequence Y4
Extra sequence Y5
Heating
Exchanger
Cooling
Pump control
Free cooling
Support control
CO2/VOC control
Fire function
Humidity control
Exchanger de-icing
Cooling recovery
Enthalpy control
Min lim. dampers
External setpoint
Run ind/Motor prot.
Actuator type
Actuator run time
Actuat. period time
Step controllers
Recirculation
Pretreatment
Alarm settings
Communication
Other parameters
System
17.1 Inputs and outputs
AI
DI
UI
AO
DO
General
Free configuration
Any control signal can be bound to any in- and output, the only restriction being that digital signals cannot be bound to analogue inputs and vice versa. It is up to the user doing the binding to make sure that activated functions are bound to appropriate in- and outputs.
Delivery setting
On delivery, all physical in- and outputs have already been bound to a signal.
The delivery settings are suggestions only and can easily be changed.
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17.1.1 Analogue inputs AI
AI1:
Sign: Outd temp
Raw value: 18.4
Compensation:0.0 °C
All analogue inputs are for PT1000 or 0…10 V.
Input signals can be compensated e.g. for wiring resistance.
The raw value will show the actual, uncompensated input value.
If inputs have been assigned to pressure or flow control of fans, alternatively humidity or CO
2 control, the following menus will appear:
SAF Pressure at
0 V: 0.0 Pa
10 V:500.0 Pa
Filter factor: 0.2
CO2 at
0V: 0.0 ppm
10V: 2000 ppm
Filter factor: 0.2
Set the parameter values that should correspond to the input signal levels 0 V and 10 V.
The filter factor is the damping you want the program to work with in order to reduce the influence of potential signal fluctuations on the sensor input. The filter factor can be changed via the display or E tool
©
and is found after ”analogue inputs” in ”configuration”. A new value is calculated using the following formula:
New value = old value * filter factor + raw value * (1 - filter factor)
17.1.2 Digital inputs DI
DI1
NO/NC: NO Signal:
Filter guard1
Status: No
To simplify adaptation to external functions, all digital inputs can be configured to be either normally open, NO, or normally closed, NC.
The inputs are as standard normally open, i. e. if the input is closed, the function connected to the input in Corrigo is activated.
Be careful when changing the input from NO to NC since some digital functions can be configured to either NO or NC themselves. For example, you can choose if the Fire alarm input should be activated when it is closed or opened. Therefore, there is a risk that the signal is changed twice and the result is the opposite of the desired.
17.1.3 Universal inputs UI
On the largest hardware version, E28 there are universal inputs. These can individually be configured as either analogue inputs or as digital inputs. When configured as analogue inputs they can be bound to any of the analogue signals described under Analogue signals.
When configured as digital inputs they can be bound to any of the digital signals described under
"Digital signals".
UI1:
Choose AI or DI sign
AI sign: SAF pressure
DI sign: Not used
Manual Corrigo Ventilation, revision S Chapter 17 Configuration 85
After choosing AI or DI signal (the unused alternative must be set to not active) there are submenus with settings. These menus are accessed by pressing RIGHT.
UAI1:
Sign: SAF pressure
Raw value:8.5
Compensation: 0.0 °C
UDI1:
NO/NC: NO Signal
Not used
Status: No
To simplify adaptation to external functions, all universal inputs configured as digital inputs can be set to be either normally open, NO, or normally closed, NC.
The inputs are as standard normally open, i. e. if the input is closed, the function connected to the input in Corrigo is activated.
Be careful when changing the input from NO to NC since some digital functions can be configured to either NO or NC themselves. For example, you can choose if the Fire alarm input should be activated when it is closed or opened. Therefore, there is a risk that the signal is changed twice and the result is the opposite of the desired.
17.1.4 Analogue outputs
Analogue outputs are 0…10 V DC.
AO1:
Sign: Y1 heating
Auto
Value: 0.0 V
Analogue outputs can be set in run mode "Auto", "Manual" or "Off".
17.1.5 Digital outputs
DO1:
Signal: SAF 1/1-speed
Auto
Status: On
Digital outputs can be set in run mode "Auto", "Manual-On" or "Manual-Off".
17.2 Sensor settings
PT1000 setpoint devices can be connected to function as outdoor and room temperature sensors.
Alternatively, 0...10 V transmitters can also be used.
Room temp1
Sensor type: PT1000
If any of the sensors are set to 0...10 V, the sensor can be scaled using the right arrow key on the controller:
Room temp1
0V = 0 °C
10V = 100 °C
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17.3 Control function
Control function
Mode:
Supply air control
There are eight different control functions to choose from:
1. Supply air control.
2. Outdoor-temperature compensated supply air control.
3. Cascaded room temperature control
4. Cascade connected extract air temperature control.
5. Outdoor temperature dependent switching between outdoor compensated supply air temperature control and room temperature control
6. Outdoor-temperature controlled switching between Outdoor-temperature compensated supply air control and Cascade connected extract air temperature control.
7. Outdoor compensated room temperature control
8. Outdoor compensated extract air control
For detailed description of the control modes, see section 5.1.1 Control modes.
In control modes five and six, there is a submenu for setting of the change-over outdoor temperature.
Outdoor temp for control mode change
13 °C
17.4 Fan control
Fan control
1-speed
Choose between "Single-speed", "Two-speed", "Pressure control", "Flow control", "Frequency manual" (fixed output), "Frequency external control", "SAF with EAF slave", or "SAF with EAF flow control".
For detailed description of fan control alternatives, see section 5.4 Fan control.
Flow control
If flow control has been configured, there is a submenu for setting of calculation parameters for conversion of pressure to flow. There are two menus, one for "SAF" and one for "EAF".
SAF flow control factors
K-constant: 100
X-constant: 0.50
For more detailed description, see the section Air flow control under 5.4.1 Pressure control.
Manual Corrigo Ventilation, revision S Chapter 17 Configuration 87
SAF with EAF slave / EAF with SAF slave
If fan slave operation has been configured, there is a submenu for setting the CAV factor, a factor which determines the slave fan output in relation to the output of the controlling fan.
SAF/EAF CAV factor
1.00
For more detailed description, see the section SAF with EAF slave under 5.4.1 Pressure control.
SAF with EAF flow control / EAF with SAF flow control
If fan slave operation and flow control has been configured, there are submenus for setting the flow calculation factors for "SAF" and "EAF", and the CAV factor for "SAF/EAF".
SAF flow control factors
K-constant: 100
X-constant: 0.50
EAF flow control factors
K-constant: 100
X-constant: 0.50
SAF/EAF CAV factor:
1.00
For more detailed description, see the section SAF with EAF flow control / EAF with SAF flow control under 5.4.1 Pressure control.
Crosswise interlock between fans
Crosswise interlock means that if one of the fans stops running, the other fan will automatically stop as well.
Crosswise interlock between SAF and EAF
No
17.5 Extra control circuit
The extra control circuit can be configured to be either constantly active or to be active only when the regular control circuit is active.
Mode extra unit
Running if unit runs
The extra control circuit can be configured to be either a heating or a cooling circuit.
Control mode extra unit
Heating
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17.6 Extra sequence Y4
"Extra sequence Y4" can be configured to one of the following alternatives: "Active", "Active with cooling recovery", "Active with enthalpy control" and "Active with both cooling recovery and enthalpy control".
Mode Extra sequence Y4
Not active
17.7 Extra sequence Y5
"Extra sequence Y5" can be configured to “Active” or “Not active”.
Mode Extra
Sequence Y5
Not active
17.8 Heating coil
Heating
Water
The heater can be set to "Water", "Electric", "Water/Electric" or "Not used".
For detailed description of heater alternatives, see section 5.1.2 Heater types.
17.9 Exchanger
Exchanger
Rot exchanger
The heat exchanger unit can be set to one of the following alternatives:
• Plate exchanger
• Rotating exchanger
• Liquid connected exchanger
• Mixing dampers
• Not connected
• Damper limiting for minimum outdoor air percentage is settable 0…100%.
In the submenu parameters for outdoor temperature control of exchanger can be set.
Outd temp control of exch: Off
Outd temp start: 10°C
Diff stop: 0.2°C
For detailed description of exchanger alternatives, see section 5.1.3 Heat exchanger.
17.10 Chiller
Cooling
Water
Manual Corrigo Ventilation, revision S Chapter 17 Configuration 89
Select chiller type: "Water", "DX", "DX with exchanger control" or "Not used".
For detailed description of DX-cooling, se section 5.1.4 Step controllers.
If DX cooling has been configured, there are submenus for setting of certain operation parameters.
Min limit lowering
If DX cooling is used in combination with room or extract air control, the supply air temperature minimum limit value can be lowered to give smoother (more continuous) running of the chillers.
The set lowering of the limit value is activated when the DX cooling is running.
Lowering of min limit for supply air control on active
DX cooling: 5.0°C
This parameter is also used for setting the lowering of the cooling setpoint when running "DX cooling with exchanger control".
See 5.1.4.
Blocking the DX cooling at low outdoor temp
Outdoor temperature dependent blocking of DX cooling is individually settable for each cooling step. If the outdoor temperature is below the set value, it is not possible to activate the cooling step.
The function has a 1K hysteresis, i.e. if a cooling step is blocked, it can only be activated again when the outdoor temperature has risen to 1K above the set value.
Block DX-cooling, step1, at outdoor temp lower than
13.0 °C
Blocking of DX cooling on cooling pump alarm
DX cooling can be blocked on activation of the cooling pump alarm.
Block DX-cooling on alarm
”Malfunction P1 cooler”:No
Override of reduced speed for DX cooling
Override to normal quantity of air for DX cooling when the unit runs on reduced quantity of air. The fans can be set to normal operation when cooling is required at high outdoor temperatures (e.g.
>14°C, the same temperature limit as for blocking of DX cooling).
Force normal speed if active
DX-cooling:Yes
17.11 Pump control
P1 heating
P1 exchanger
P1 cooling
In these menus the parameters for pump control are set.
90 Chapter 17 Configuration Manual Corrigo Ventilation, revision S
If, for any of the control circuits, no output is configured for pump control these settings will be ignored.
P1 Heating
Pump stop: Yes
Stop delay: 5 min
Outd temp stop 10 °C
Differential: 1.0
P1 Exchanger
P1 exchanger
Stop delay: 5 min
P1 Cooling
P1 cooling
Stop delay: 5 min
For a detailed description of pump functions, see the section Pump control.
17.12 Free cooling
Free cool active:Yes
Outd temp activation
22.0°C
Outd temp night
High: 18.0 °C
Low: 10.0 °C
Room temp min 18.0°C
Hour for start/stop free cooling
Start: 0
Stop: 7
Time to block heat output after free cooling
60 min
Fan setpoint offset when free cooling
SAF: 0
EAF: 0
Outdoor sensor placed in intake channel
No
For detailed description, see section 5.1.6 Free cooling.
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17.13 Support control
Note: If you select the function support control without EAF (extract air fan), a recirculation damper must be used. See more in section 5.1.5.
Support control active: Yes
EAF running during support contr: Yes
Minimum running time
Min run time for support ctrl: 20 min
For detailed description, see 5.1.5 Support control.
17.14 CO
2
Demand control
CO2/VOC active
Never
Type: Dampers
Min. time: 20 min
Activation level
1/2-speed: 800 ppm
1/1-speed: 1000 ppm
diff: 160 ppm
For detailed description, see the section Demand control.
17.15 Fire function
Fire dampers are normally configured to open on fire alarm. However, they can be configured to be normally open instead via the display. You can use E tool
©
to configure the air handling unit’s running mode on fire alarm. The following options are available: "stopped", "continuous run", "run via normal start/stop conditions", "only supply air fan in operation” or "only extract air fan in operation".
As of software version 3.2, fire alarm priority has been altered so that the unit will not stop for any other alarm (e.g. frost protection) when it has been configured for continued operation during fire alarms. The digital input ”external switch” will still stop the unit.
The fire alarm input can be configured to normally open or normally closed.
All dampers must be wired to the same output in order to get correct results.
Fire damper function
Not active
Operation when alarm
Stopped
Select if fire alarm should be normally closed or normally open and activation of fire damper exercising if the unit should be stopped or not: ”No”, ”Yes unit running” ,”Yes unit stopped” ,
Fire alarm input
Normally open
Damper exercise
No
Set the parameters for damper exercise in the submenu.
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Damper exercise
Running time: 90 s
Interval in days: 1
Hour for exerc: 00
Running time is the time the damper actuator needs to open or close.
Hour for exercise is the hour of the day at which you want the function to be run.
For detailed description of damper exercising, see the section Damper control.
17.16 Humidity control
Humidity control can be configured as either humidification or dehumidification or as combined humidification/dehumidification.
These settings are for the digital output "Humidification/Dehumidification".
Humidity control
Humid-/Dehumidificat
Start limit: 15%
Stop limit: 5%
For a detailed description, see the section Humidity control.
17.17 Exchanger de-icing
Exchanger deicing
Yes
De-icing parameters
Setp deicing:-3.0°C
Hysteresis: 1.0 °C
Stop temp SAF:-10.0 °
Min. run time: 5 min
For detailed description of exchanger alternatives, see section 5.1.3 Heat exchanger.
17.18 Cooling recovery
Cooling recovery
Off
Cooling limit: 0.0°C
Cooling limit is the difference in temperature between extract air and outdoor air.
For details, see section 5.1.7 Cooling recovery.
17.19 Minimum limit dampers
Min limit dampers
Not active
Min limit.: 5%
For detailed description of exchanger alternatives, see section 5.1.3 Heat exchanger.
17.20 Enthalpy control
Manual Corrigo Ventilation, revision S Chapter 17 Configuration 93
Cooling recovery run when enthalpy is greater outd than indoors : Active
For a detailed description, see section 5.1.8 Enthalpy control.
17.21 External setpoint
An external setpoint device, for example TBI-PT1000 or TG-R4/PT1000 can be connected. The setpoint device must follow the PT1000 resistance curve. The setting range can be restricted.
External setpoint
Not active
Min setp: 12.0°C
Max setp: 30.0°C
For details, see section 5.1.10 External setpoint.
17.22 Run indication / Motor protection
Digital input signals are used to supervise fans and pumps. They can be configured either for indication of the motor running or for monitoring of motor protection contacts.
An input configured for run indication should normally be closed during operation.
Open input when the motor is running, i.e. motor control output is activated, will generate an alarm.
For supply air fans and extract air fans, there is also a conflict alarm, i. e. an alarm if the run indication input is closed even though the motor control output is not activated. See alarm 33
Supply Air Fan external operation and alarm 34 Extract Air Fan external operation in the section
Alarm configuration.
An input configured as motor protection should be normally open, i. e. closed contact when the motor is running, i.e. motor control output is activated, will generate an alarm.
Run ind/Motor prot
SAF: Motor prot
EAF: Motor prot
Run ind/Motor prot
P1 heat: Motor prot
P1 exch: Motor prot
P1 cool: Motor prot
When running frequency controlled fans, the pressure signal from each respective fan’s pressure transmitter is normally used as run indication signal. If the pressure falls below the set value during normal operation, a malfunction alarm is activated.
Min pressure for run indication
SAF: 25.0 Pa
EAF: 25.0 Pa
Alarm from frequency converter
When running frequency controlled fans, you sometimes want to use both a pressure signal from a pressure transmitter and a digital alarm signal from a frequency converter. An analogue input for a pressure transmitter and a digital input for "SAF Indication" or "EAF Indication" must then be configured. The setting "Run indication/Motor protection SAF" or "EAF Indication" must be set to
"Motor protection". A fan alarm will be activated both when there is no pressure signal from the pressure transmitter, and when the digital signal "SAF Indication" or "EAF Indication" is activated.
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17.23 Actuator type
Choose output signals to the actuators connected to the analogue control outputs: 0…10 V DC,
2…10 V DC, 10…0 V DC or 10…2 V DC.
Actuator type
Y1 heating: 0-10V
Y2 exchan: 0-10V
Y3 cooling: 0-10V
Actuator type
SAF: 0-10V
EAF: 0-10V
Split: 0-10V
Actuator type
Humidity: 0-10V
Extra unit: 0-10V
Y1 heat/Y3 cool 0-10V
Actuator type
Y4 extra seq: 0-10V
Actuator type
Y5 extra seq: 0-10V
NOTE: Even though many manufacturers state 0…10 V DC as control signal for many actuators,
the actual control signal is more often than not 2…10 V DC. Check the actuator documentation carefully. If uncertain, choose 0…10V DC. Although control might be less accurate, it will ensure that the valve always can be driven to its fully opened and fully closed positions.
17.24 Running time, 3-position actuators
These parameters have no function if analogue actuators are configured.
The values are used to determine the control parameters for 3-position actuators.
It is important to set correct values since incorrect values lead to sloppy control.
Actuator run time
Heating: 255 s
Exchanger: 255 s
Cooling: 255 s
17.25 Step controllers
Step contr heating
Step contr cooling
17.25.1 Step controller heating
Step controller heating can be set to sequential or binary.
Manual Corrigo Ventilation, revision S Chapter 17 Configuration 95
Step contr. heating
Sequential
Binary steps
Step controller Heating activation levels for sequential control.
For binary control the activation levels are calculated by the controller depending on the number of steps involved
Start step1: 10 %
Stop step1: 5 %
Start step2: 45 %
Stop step2: 40 %
Start step3: 70 %
Stop step3: 65 %
Start step4: 95 %
Stop step4: 90 %
Control parameters. Heater groups is used to calculate activation levels for binary control.
"Hyst." is the switching differential used for each step when running binary control.
Nbr of steps: 4
Minimum on/off
time: 60 s
Hyst: 0.5 %
17.25.2 Step controller cooling
"Step controller Cooling" can be set to sequential or binary.
Step contr. cooling
Sequential
"Step controller Cooling" activation levels for sequential control.
For binary control the activation levels are calculated by the controller depending on the number of steps involved
Start step 1: 10 %
Stop step 1: 5 %
Start step 2: 50 %
Stop step 2: 45 %
Start step 3: 95 %
Stop step 3: 90 %
Control parameters. Chiller groups is used to calculate activation levels for binary control.
“Hyst.” is the switching differential used for each step when running binary control.
Nbr of steps: 3
Minimum on/off- time: 60 sec
Hyst: 0.5 %
When DX cooling is used in conjunction with pressure controlled or flow controlled fans it is possible to block DX cooling if the supply air fan control signal falls below a preset values. The blocking level is individually settable for each DX cooling step.
96 Chapter 17 Configuration Manual Corrigo Ventilation, revision S
At lower SAF output block step1: 0 % block step2: 0 % block step3: 0 %
For a more detailed description, see section 5.1.4 Step controllers.
17.25.3 Step controllers Change-over
The digital output signals "Heating/cooling step 1", "Heating/cooling step 2" and "Heating/cooling step 3" are used for step controllers during Change-over control (see section 5.1.12). They have the same functions as other step controller outputs, but are set to either heating or cooling depending on whether heating or cooling is required. In other words, when heating is active, they will follow the settings for "Heating 1-3" and when cooling is active they will follow the settings for "Cooling 1-3".
17.26 Recirculation
Recirculation is a function for distributing the air in the room using the supply air fan. The extract air fan can also be used, if desired. The function can be used even when there is no heating or cooling demand. When using recirculation control, the extract air fan stops and a recirculation damper opens which allows the air to circulate through the unit.
Either a digital output (Recirculation damper) or an analogue output (Y4 Extra sequence) can be used as an output signal. When Y4 Extra sequence is used, the damper will become modulating.
Enable temp control when recirculation
No
Recirculation control can be configured as either air circulation (temperature control inactive) or air circulation with temperature control. (Only heating, only cooling or both heating and cooling.)
Recirculation control can either have a unique setpoint or follow the supply air setpoint, with an adjustable offset. The other settings are the same as for normal operation, i.e. if normal operation has been configured as room control, room control will also be used during recirculation.
End recirculation control when room temp exceeds:
25.0°C
If the room temperature rises above the set limit value, recirculation will be stopped.
Enable free cool when recirculation
No
To lower the temperature, it is possible to configure free cooling to be used during recirculation, if the conditions for free cooling are fulfilled.
Use extra time group5 to start recirculation: No
Recirculation is activated either via a digital input signal or by connecting it to "Timer output 5".
EAF running during recirculation: No
The extract air fan can be selected to run during recirculation.
Manual Corrigo Ventilation, revision S Chapter 17 Configuration 97
17.27 Pretreatment
Control of dampers and pump for preheated or pre-cooled outdoor air via an underground intake channel. The digital output ”Pretreatment” is set to preheating when the unit is started and the outdoor temperature is below the set heating start limit (default 8°C) or to precooling when the outdoor temperature is above the set cooling start limit (default 19°C).
If the outdoor temperature exceeds the set heating start limit by more than 1°C (fixed), preheating will be aborted, as well as if the outdoor temperature falls below the cooling start limit by 1°C.
If a sensor is configured in the intake duct (”intaketemp”) this temperature will be compared with the outdoor temperature. If the temperature in the intake duct does not exceed the outdoor temperature by more than 1°C (adjustable) 5 minutes (fixed) after start-up when using preheating, preheating will be aborted. The same conditions apply to precooling, i.e. if the intake temperature is not more than 1°C (adjustable) cooler than the outdoor temperature, precooling will be aborted.
Pretreatment always starts at start-up of the unit, if the outdoor temperature so permits. If pretreatment is aborted due to a small difference between the intake temperature and the outdoor temperature, pretreatment will be blocked for 6 hours. Then pretreatment will start (if the outdoor temperature so permits) and run for at least 5 minutes.
Outdoor temp for activating preheating: 8.0 °C precooling: 19.0 °C
Minimum diff outdoor temp- intaketemp: 1.0 °C
17.28 Alarm setting
Permits configuration of all alarms.
Select the appropriate alarm number (from the alarm list). The alarm text for the alarm will be displayed and the alarm priority can be set; "A-alarm", "B-alarm", "C-alarm" or "not active". The extra stop function gives, for each alarm, the option to stop or not stop the unit on alarm activation.
Malfunction supply air fan
Priority: B-alarm
Extra stop function
Active
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Alarm text
The alarm text that should be shown in the display when there is an alarm can be changed using E tool
©
. For more information, see the E tool
©
manual.
Alarm list
The alarm text and priority columns show the factory set values.
Alarm text Prio Description
1
2
3
4
5
6
Malfunction supply air fan
Malfunction P1 cooler
Malfunction P1 exchanger
Filter alarm 1
B
Malfunction extract air fan B
Malfunction P1 heater B
B
B
B
Malfunction supply air fan
Malfunction extract air fan
Malfunction pump, heating circuit
Malfunction pump, cooling circuit
Malfunction pump, liquid connected exchanger
Filter guard pressure switch or analogue filter switch activated. The analogue filter switch may be flow dependent.
7
8
9
10
11
12
13
14
25
26
27
Flow guard
External frost guard
Deicing pressure guard
Fire alarm
External switch
External alarm
Supply air control error
Humidity control error
Low frost guard temp
Low efficiency
Sensor error outdoor temp
B
A
-
A
C
B
B
-
A
B
B
Flow switch activated
External frost protection thermostat activated
Exchanger de-icing pressure switch activated
Fire alarm activated
"External switch" activated
External alarm activated
Supply air temp deviates too much from the setpoint for too long.
The room humidity deviates too much from the setpoint.
Supply air temp too high 15 High supply air temp
16
17
18
19
Low supply air temp
Supply air temp max limit
Supply air temp min limit
High room temp
B
B
-
-
B
20
21
22
23
Low room temp
High extract air temp
Low extract air temp
B Room temp too low during room temp control
B High extract air temp during extract air control
B
Electric heating is overheated A
Low extract air temp during extract air control
Heater high temperature limit switch activated
24 Frost risk B
Supply air temp too low
Maximum limiting of supply air temp active
Minimum limiting of supply air temp active
Room temp too high during room temp control
Frost protection function is overriding the control of the heater output
Frost protection temperature below frost limit value
Heat exchanger efficiency below limit value
Malfunction in connected sensor
Manual Corrigo Ventilation, revision S Chapter 17 Configuration 99
28
29
30
31
32
Alarm text
Analogue deicing
Rotation sentinel exchanger
Malfunction fire damper
Supply air fan control error
Extract air fan control error
33 Supply air fan external operation
34 Extract air fan external
35
36 operation
Ventilation manual mode
Manual supply air control
B
B
-
-
C
C
C
C
37 Manual supply air fan mode C
38 Manual supply air fan freq control
C
39 Manual extract air fan mode C
40 Manual extract air fan freq control
C
41 Manual heater control
42 Manual exchanger control
43 Manual cooler control
44 Manual P1 heater
C
C
C
C
Prio Description
- Exchanger de-icing activated by de-icing sensor
Exchanger rotation sentinel alarm activated
Fire damper exercise test failed
Supply air pressure deviates too much from the setpoint for too long.
Extract air pressure deviates too much from the setpoint for too long.
SAF run-signal received when unit is stopped
EAF run-signal received when unit is stopped
The unit is in manual mode
Supply air temp controller in manual control
Supply air fan in manual control
The SAF is in manual mode
Extract air fan in manual control
The EAF is in manual mode
45
46
Manual P1 exchanger
Manual P1 cooler
47 Manual fire damper
48 Internal battery error
51 Sensor error room temp 1
52 Sensor error room temp 2
55 Sensor error SAF pressure
56 Sensor error EAF pressure
57 Sensor error deicing temp
58 Sensor error frost protection temp
C
C
C
A
49 Sensor error supply air temp B
50 Sensor error extract air temp B
B
B
53 Sensor error exhaust air temp B
54 Sensor error extra sensor 1 B
B
B
B
B
59 Sensor error CO2 B
60 Sensor error humidity room B
61 Sensor error humidity duct B
The heater is in manual mode
Heat exchanger output in manual control
Cooling output in manual control
Heating circulation pump in manual control
Exchanger circulation pump in manual control
Cooling circulation pump in manual control
Fire dampers in manual control
Internal battery needs replacing
Malfunction in connected sensor
Malfunction in connected sensor
Malfunction in connected sensor
Malfunction in connected sensor
Malfunction in connected sensor
Sensor error Extra sensor 1
Malfunction in connected sensor
Malfunction in connected sensor
Malfunction in connected sensor
Malfunction in connected sensor
Malfunction in connected sensor
Malfunction in connected sensor
Malfunction in connected sensor
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91
92
93
Alarm text
62 Sensor error extra unit temp B
63 Sensor error external control
SAF
B
64 Sensor error external control
EAF
B
65 Sensor error SAF pressure 2 B
66 Sensor error outdoor humidity B
67 Sensor error intake temp
68 Sensor error extra sensor 2
B
B
69 Sensor error extra sensor 3
70 Sensor error extra sensor 4
71 Sensor error extra sensor 5
72 Sensor error extra SAF pressure
73 Sensor error extra EAF pressure
B
B
B
B
B
74 Sensor error backup 8
75 Sensor error backup 9
76 Sensor error backup 10
77 Alarm frequency converter
SAF
78 Alarm frequency converter
EAF
79 Communication error frequency SAF
A
C
80 Alarm frequency converter
EAF
81 Communication error expansion unit 1
C
C
82 Communication error expansion unit 2
83 Warning frequency converter
SAF
C
C
B
B
B
A
84 Warning frequency converter
EAF
C
85 Output in manual mode
86 Time for service
C
C
C 87 Y4 extra sequence control manual
88 Restart blocked after poweron
B
89 Y5 extra sequence control manual
90 Filter guard 2
C
B
High temp extra sensor 1
Low temp extra sensor 1
High temp extra sensor 2
Prio Description
Malfunction in connected sensor
Malfunction in connected sensor
-
-
-
Malfunction in connected sensor
Malfunction in connected sensor
Malfunction in connected sensor
Malfunction in connected sensor
Malfunction in connected sensor
Malfunction in connected sensor
Malfunction in connected sensor
Malfunction in connected sensor
Malfunction in connected sensor
Malfunction in connected sensor
Malfunction in connected sensor
Malfunction in connected sensor
Malfunction in connected sensor
Malfunction of frequency converter SAF
Malfunction of frequency converter EAF
Communication error Vacon NXL/Lenze
SMV/Omron V1000/Emerson
Communication error Vacon NXL/Lenze
SMV/Omron V1000/Emerson
Communication problem with connected expansion unit
Communication problem with connected expansion unit
Alarm from frequency converter via
Modbus communication
Alarm from frequency converter via
Modbus communication
Analogue or digital output in manual mode
Time for service
Y4-Extra sequence in manual control
Restart blocked due to earlier power failure
Y5 Extra sequence in manual control
Filter guard pressure switch or analogue filter switch activated. The analogue filter switch may be flow dependent.
High temperature extra sensor 1
Low temperature extra sensor 1
High temperature extra sensor 2
Manual Corrigo Ventilation, revision S Chapter 17 Configuration 101
Alarm text Prio Description
94 Low temp extra sensor 2
95 High temp extra sensor 3
96 Low temp extra sensor 3
97 High temp extra sensor 4
98 Low temp extra sensor 4
99 High temp extra sensor 5
100 Low temp extra sensor 5
101 Extra alarm 1
102 Extra alarm 2
103 Extra alarm 3
104 Extra alarm 4
105 Extra alarm 5
106 Extra alarm 6
107 Extra alarm 7
108 Extra alarm 8
109 Extra alarm 9
110 Extra alarm 10 -
111 Extra unit in manual mode -
112 Malfunction motor control 1 -
-
-
113 Malfunction motor control 2 -
114 Motor control 1 external operation
-
115 Motor control 2 external operation
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Low temperature extra sensor 2
High temperature extra sensor 3
Low temperature extra sensor 3
High temperature extra sensor 4
Low temperature extra sensor 4
High temperature extra sensor 5
Low temperature extra sensor 5
Extra alarm 1 on digital input
Extra alarm 2 on digital input
Extra alarm 3 on digital input
Extra alarm 4 on digital input
Extra alarm 5 on digital input
Extra alarm 6 on digital input
Extra alarm 7 on digital input
Extra alarm 8 on digital input
Extra alarm 9 on digital input
Extra alarm 10 on digital input
Extra controller in manual mode
Malfunction in motor control 1
Malfunction in motor control 2
External operation of motor control 1
External operation of motor control 2
17.29 Communication
17.29.1 Modbus communication
Corrigo can be connected to a network for Modbus communication.
Modbus communication slave, port 1
Not Active
If Modbus communication is activated, you can set the address etc.
Modbus communication takes place using 1 stop bit.
Modbus address: 1
Speed: 9600 bps
Two stop bits:Yes
Parity:No
NOTE: Only one stop bit can be used.
102 Chapter 17 Configuration Manual Corrigo Ventilation, revision S
Slave
For connection to E tool
©
and a Modbus SCADA system.
Function port1
Slave
Expansion unit
In order to connect additional I/Os (in- and outputs) to the Corrigo, port 1 or 2 should be set as an expansion unit (only Corrigo controllers can be connected). It is possible to connect two expansion units, giving a maximum number of 28*3 = 84 inputs/outputs. The expansion units must have the addresses 241:1 and 241:2 respectively (ELA:PLA).
Expansion unit1
None
Expansion unit2
None
To initiate the expanded controllers, select ”Expansion unit” at start-up (see below). If the controller does not contain program version 3.0 or later, the initiation must be made via E tool
©
(see the E tool
©
manual). However, this requires that the controller hardware is of a second generation Corrigo
(…S). After initiating the expansion units and setting the master controller, all inputs and outputs are available for configuration in the master controller under "Configuration" / "Inputs/Outputs" (the expansion units’ in-/outputs are named Exp1/Exp2).
Ventilation
Heating
Boiler
Expansion unit1
Expansion unit2
Frequency converters
Up to four separate Vacon NXL / Lenze SMV/ Omron V1000 / Emerson Commander/ LS iG5a/ LS iS7/ EBM-PABST/ Danfoss FC 101/ ABB ACS/ ECBlue frequency converters can be controlled using Modbus communication. The Corrigo can handle two parallel supply air fans and two parallel extract air fans. Miscellaneous alarms and indications can be read from the frequency converters.
For a complete list of alarms, see the alarm list. For communication addresses see “Appendix 1”, located at the end of this manual.
The Corrigo Modbus settings are listed below. They are not adjustable and must also be set in the current frequency converters.
Modbus address: Supply air fan = 1, Extract air fan = 2, Parallel supply air fan = 3, Parallel extract air fan = 4
Speed: 9600 bps, 1 stop bit, no parity
For additional settings for every model, see Appendix 1 at the end of this document.
Type of freq conv connected on Modbus
Vacon NXL
Dual? No
External display
ED-TCV or ED/RU-RUD can be used as an external display.
External display
None
Manual Corrigo Ventilation, revision S Chapter 17 Configuration 103
Expansion unit and frequency converters
Frequency converters can be used in combination with expansion units on the same port. The master controller will switch the port between Modbus and EXOline in order to communicate with the frequency converters via Modbus and with the expansion unit via EXOline.
Function port 1
Exp and freq/press
Press RIGHT to select which expansion units are to be connected.
Expansion unit1
None
Expansion unit2
None
Then go a step down to select which frequency converters are to be connected. For additional settings for frequency converters, see appendix at the end of this document.
Type of freq conv connected on Modbus
None
Dual? No
Expansion unit and external display
Function port1
Exp and ext display
An expansion unit and external display can be used on the same port simultaneously.
17.29.2 Function port 2
In a Corrigo with 3 ports, both serial ports have the same function. They can, however, not be configured to have the same function at the same time.
17.29.3 BACnet communication
Corrigo is capable of communication via the BACnet protocol, using either IP or MS/TP data link formats. In order to connect a Corrigo running a ventilation application to a BAS (Building
Automation System) via BACnet/IP, a third generation Corrigo with a TCP/IP port is required. To connect to a BAS via BACnet MS/TP, a third generation Corrigo with a second RS485 communication port is required.
17.29.4 BACnet/IP configuration
Upon delivery, the BACnet/IP protocol is disabled as a default. To enable BACnet communication, simply change the setting “Not active” to “Active”. The protocol will now be available for use:
TCP/IP
BACnet/IP communication
Active
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Device name
CorrigoVentilation
BBMD address
Device ID low
2640
Device ID high
0 (x10000)
Device name
This is the devices name that is shown on the BAS when a device is discovered.
BBMD address
The BBMD address (BACnet/IP Broadcast Management Device) is used for discovering devices that are attached to different BACnet/IP subnets and separated by an IP router. The address is entered as host:port, where “host” can be the host’s name if DNS is configured. If DNS is not configured, the host address should be entered in the format “xxx.xxx.xxx.xxx”, followed by the port number (default setting 47808).
Example: mybbmd:47808 (with DNS configured) or 10.100.50.99:47808
Device ID
The ID of a device, used to identify it on the BACnet network. This number cannot be duplicated
anywhere on the BACnet network and must therefore be unique. To set an ID value of 34600, the
low number would be set to 4600 and the high number to 3.
DHCP
The Dynamic Host Configuration Protocol (DHCP) is a network protocol used on Internet Protocol
(IP) networks for dynamic distribution of network configuration parameters, such as IP addresses,
DNS servers and other services. The Corrigo can be configured to either obtain an IP address from a
DHCP server (dynamic) or the address can be set manually (static).
If you wish to set a static IP address for the Corrigo, simply enter the IP address you wish to use along with the subnet mask, gateway address and DNS server address:
TCP/IP
DHCP: Yes
Set static IP
Current IP
-
IP
192.168.001.234
Subnet mask
255.255.255.000
Current subnet mask
-
Current gateway
-
Default gateway
192.168.001.001
DNS
192.168.001.001
Current DNS
-
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17.29.5 BACnet MS/TP Configuration
Upon delivery, the BACnet MS/TP protocol is disabled as a default. To enable BACnet communication, the function must first be activated. The default communication settings upon delivery are as follows:
Speed = 9600 bps
MAC address = 0
Device ID = 2640
Max Master = 127
Function port1
Slave
BACnet MS/TP communication port1
Active
Device name
CorrigoVentilation
MAC
0
Device ID low
2640
Device ID high
0 (x10000)
Speed
9600 bps
Max master address
127
Device name
This is the name of the device, as shown on the BAS when discovering devices.
MAC
The MAC address of the device. This needs to be unique only to the subnet to which the device is attached.
Device ID
The ID of a device, used to identify it on the BACnet network. This number cannot be duplicated
anywhere on the BACnet network and must therefore be unique. To set an ID value of 34600, the
low number would be set to 4600 and the high number to 3.
Speed
Sets the communication speed of the MS/TP network. This value is typically set to 38400 or 76800 but can be 9600, 19200, 38400 or 76800.
Max master address
The max master is the MAC address of the highest master device on the BACnet MS/TP network segment. Setting this number above the highest MAC address will decrease network performance.
For additional information, see the Corrigo PICS document, available via www.regincontrols.com.
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17.30 Other parameters
17.30.1 Start and stop delays for the fans
Use start delay if you wish one of the fans to start before the other and for example if you wish to give the close-off dampers time to open before starting the fans. Use stop delay e.g. to create a cooldown period when using electric heating. In order to avoid letting in too cold air, e.g. in the winter, the heat exchanger will continue to run during the stop delay.
Delay SAF
Start: 60 s
Stop: 30 s
Delay EAF
Start: 0 s
Stop: 30 s
17.30.2 Retardation time
When switching two-speed fans from 1/1-speed to 1/2-speed there is a settable retardation time. The same time applies to both fans.
Retardation time
1/1-1/2-speed
10 s
17.30.3 Heating at start-up and high speed blocking
At outdoor temperatures below the set value, the heating output will be forced to 100% before startup.
Two speed fans and pressure controlled fans can be blocked from using high speed at outdoor temperatures lower than the set value. This function should not be combined with the function
”Outdoor compensation of pressure setpoint”. See the section Demand control.
Both functions need an outdoor temperature sensor.
Outd temp for heat start: 3.0°C
Blocking of
1/1-speed: -10°C
17.30.4 Start delay exchanger
Start delay exch
0 s
17.30.5 Exchanger to 100% at start and alarm delay at start
To minimise the risk of freeze-up problems, the heat exchanger can be forced to maximum capacity for the set time at start-up.
To eliminate the risk of, for example, fan pressure alarms at start-up, all alarm functions can be suppressed for the set time.
Manual Corrigo Ventilation, revision S Chapter 17 Configuration 107
Exch 100% at start
2 s
Alarm delay at start
60 s
For the function ”Slave control of the extract air fan”, the fan will start directly at 50 % after the start delay, in order for the heating of the exchanger to work for this operating mode. When the supply air fan starts, the extract air fan will be slave controlled by the flow in the supply air duct.
17.30.6 Split controller signal
Splits the controller output (Heating Controller Output signal = HCOut) between the analogue temperature control output signals Y1, Y2 and Y3 for "Heating", "Heat exchanger" and "Cooling",
"Y4" and "Y5".
To create a neutral zone, leave a percentage gap between sequences.
The set P-band for the supply air controller is for the whole controller signal. This means that the Pband for each sequence is proportionate to the split percentage values given to sequences.
Example:
P-band for the supply air controller is set to 33K. The HCOut is set so that cooling gets 0…30 % =
30 %, the exchanger gets 32…50 % = 18 % and the heater gets 54…100 % = 46 %. The individual
P-bands will then be:
Chiller: 30 % of 33°C = 10°C
Exchanger: 18 % of 33°C = 6°C
Heating: 46 % of 33°C = 15°C
The remaining 2°C are the neutral zone between cooling and exchanger and between exchanger and heating.
Split settings exchanger
0% at HCOut= 32%
100% at HCOut= 50%
Split settings heating
0% at HCOut= 54%
100% at HCOut= 100%
Split settings cooling
0% at HCOut= 30%
100% at HCOut= 0%
Split settings extra sequence Y4
0% at HCOut= 0%
100% at HCOut= 0%
Split settings extra sequence Y5
0% at HCOut= 0%
100% at HCOut= 0%
108 Chapter 17 Configuration Manual Corrigo Ventilation, revision S
Output signal
100%
0%
Controller signal
100%
54%
50%
32%
30%
0%
Cooling Heat exch.
Heating
Heat demand
17.30.7 Outdoor temp. for control mode change
If the unit is configured for combined Supply air/Room control this menu permits the setting of the change-over outdoor temperature.
Outdoor temp for control mode change
13.0°C
17.30.8 Split of optional temp. sequence
Any one of the analogue temperature control output sequences "Y1", "Y2" and "Y3", ”Y1 heating/Y3 cooling”, ”Y4-extra sequence” or ”Y5-extra sequence” can be split, for example to control two heating valves in sequence. The split is always even, 50/50, which means that each part of the split will have half the part of the P-band assigned to the output. An analogue output must be assigned to the output signal “Split”. On increasing output demand, the regular output is always run first and then the output that has been configured as Split.
Split optional temperature sequence
Y1 Y2 Y3
No split
17.30.9 Fast stop on overheating
If this function is active, the fans will be immediately stopped when there is an overheating alarm, regardless of the set cool-down time.
Fast stop on alarm
“Electric heating is overheated”: No
17.30.10 Automatic restart at power-up
The function ”Automatic restart at power-up” makes it possible to block automatic restart of the unit at power-up. At power-up, the B-alarm ”Restart blocked after power on” is generated. Once this alarm has been acknowledged, the unit will start.
Manual Corrigo Ventilation, revision S Chapter 17 Configuration 109
Automatically restart after power-on: Yes
17.31 System
17.31.1 Change language
Use this menu to change the display language.
Choose language
English
Note, this menu is also directly accessible by holding the OK-button depressed during power-up or by pressing right arrow three times when the start display is shown.
The different language files are stored in the application memory and are downloaded to the work memory. If a Corrigo via E tool
©
has been reloaded with a newer program revision than the factory revision, the controller will not allow language files to be downloaded from the application memory. This is because there is a risk that the language files are not compatible with the new revision. Therefore, you are limited to the two languages you have downloaded using E tool
©
.
17.31.2 Choose start display, the text normally shown on the display
There are five different to choose from.
Type 1
The text on the first line can be changed using E tool
©
.
The second line shows the date and time.
The third line shows the present running status.
The fourth line shows the present temperature setpoint and actual values.
Vent unit 18 PX
2004-08-15 11:28
System: Running
Sp:22.0°C Act:21.8°C
Type 2
The first line shows the date and time.
The second line shows the present running status.
The third line shows the present temperature setpoint and actual values.
The fourth line shows the present temperature control output values.
2004-08-15 11:28
System: Running
Sp:22.0°C Act:21.8°C
Y1:0% Y2:93% Y3:0%
Type 3
The first line shows the date and time.
The second line shows the present running status.
110 Chapter 17 Configuration Manual Corrigo Ventilation, revision S
The third line shows the present temperature setpoint and actual values.
The fourth line shows the present SAF and EAF pressures.
15/03/2004 11:28
System: Running
Sp:22.0°C Act:21.8°C
SF:1100Pa EF:1050Pa
Type 4
The text on the first line can be changed using E tool
©
.
The second line shows the date and time.
The third line shows the present running status.
Vent unit 18 PX
2004-03-15 11:28
System: Running
Type 5
The text on the first line can be changed using E tool
©
.
The second line shows the date and time.
Vent unit 18 PX
2004-03-15 11:28
17.31.3 Automatic summer-/wintertime change-over
When Corrigo is set on automatic summertime/wintertime change-over, the timer will automatically change between summertime and wintertime according to European standard.
Automatic summer/ winter time change-over
Yes
17.31.4 Address
Corrigo uses the addresses below when connecting to E tool
©
, and when multiple controllers are connected in an EXO network. E tool
©
normally uses the addresses below, so if an address is changed, the new address must also be entered in E tool
©
. If several Corrigo are connected in a network, all the units must have the same ELA address, but each unit must have a unique PLA address.
Address
PLA: 254
ELA: 254
17.31.5 Display anywhere (remote control)
If multiple Corrigo units are connected in a network, it is possible to remote control a unit in the network from a unit with display. You do this by entering the address of the unit you wish to remote control in the unit with display. The function is aborted by pressing the buttons UP, OK and DOWN simultaneously.
Address for remote communication
(PLA:ELA) : 00:00
Manual Corrigo Ventilation, revision S Chapter 17 Configuration 111
17.31.6 Automatic logoff
If the access level is Operator, Service or Admin, the user will automatically be logged off to
Normal after a settable time of inactivity. The time is settable in units of 5 seconds. Standard 60 units = 5 minutes.
The automatic logoff can be removed, see 8.4.
Time before user is automatically logged off:60
(Unit 5 s)
17.31.7 Activation of start-up wizard
The start-up wizard is a special program which at the first start-up guides the operator through a number of start-up menus where you set certain operation parameters. For more information, see the section Start-up wizard.
Activate wizard
No
112 Chapter 17 Configuration Manual Corrigo Ventilation, revision S
Chapter 18 Other functions
18.1 Alarm handling
If an alarm condition occurs, the red Alarm LED on the front panel of units with display or the
Alarm LED on a connected display unit will start flashing. The LED will continue to flash as long as there are unacknowledged alarms.
Alarms are logged in the alarm list. The list shows type of alarm, date and time for the alarm and the alarm class (A, B or C alarm).
To access the alarm list, press the alarm button, the front panel button with the red button-top, on the front of the Corrigo / E3-DSP.
Sensor error supply air temp
24 Aug 10:43 Class:B
Reset
If there are multiple alarms, this is indicated by up/down arrow symbols at the right-hand edge of the display.
Use the UP and DOWN buttons to access the other alarms.
At the left end of the bottom display line the alarm status is shown. For active, unacknowledged alarms the space is blank. For alarms that have reset the text “Reset” is shown. Acknowledged, still active or blocked alarms are indicated by Acknowledged or Blocked.
Alarms are acknowledged by pressing the OK button. You are then given the choice of acknowledging the alarm or blocking the alarm.
Acknowledged alarms will remain on the alarm list until the alarm input signal resets. The LED is then lit.
Blocked alarms remain on the alarm list until the alarm has reset and the block has been removed.
New alarms of the same type will not be activated as long as the block remains.
Since blocking alarms can be potentially hazardous, you need a high user access to block alarms.
Class A and B alarms will activate alarm output(s) if these have been configured.
Class C alarms are removed from the alarm list when the alarm input resets even if the alarm has not been acknowledged.
18.2 Free text
If RIGHT is pressed once when the start-menu is shown, a menu showing text of your choice is displayed. The text can be used to show information concerning the commissioning company, name and phone number to service personnel etc. The easiest way to enter text is to use E tool
©
, but the buttons can also be used. Four lines of 20 characters.
18.3 Revision number
If RIGHT is pressed twice when the start-menu is shown, a menu showing the program revision number, i.e. the date on which the program was created, and the Corrigo ID number (not to be confused with its serial number) is displayed.
Manual Corrigo Ventilation, revision S Chapter 18 Other functions 113
18.4 Language
When the start menu is displayed, pressing the RIGHT button three times will display a menu in which the language can be changed.
The different language files are stored in the application memory and are downloaded to the work memory. If a Corrigo via E tool
©
has been reloaded with a newer program revision than the factory revision, the controller will not allow language files to be downloaded from the application memory. This is because there is a risk that the language files are not compatible with the new revision. Therefore, you are limited to the two languages you have downloaded using E tool
©
.
18.5 Indication LEDs
Status indication can be found in the upper left corner of the master controller. For controllers with display, the alarm indication and change mode LEDs are located in the keypad area.
Status indication
Designation Colour Description
Tx
Rx
Serv (…LON models)
LAN (…W models)
P/B (Power/Battery)
Controllers with built-in display
Green
Green
Port 1, Transmitting
Port 1, Receiving
Yellow Service LED LON, commissioning
Yellow/Green Green: Connected to other network equipment
Blinking green: Network traffic
Blinking yellow: For identifying
Green/Red Power on/Battery error
Red
Yellow
Alarm indication
Change mode
18.6 Changing the battery
This procedure requires knowledge of proper ESD protection; i.e. an earthed wristband must be used!
When the alarm ”Internal Battery” is activated and the battery LED lights up red, the battery for backup of program memory and real-time clock has become too weak. The battery is replaced as described below. A backup capacitor saves the memory and keeps the clock running for at least 10 minutes after the power supply is removed. Therefore, if the battery replacement takes less than 10 minutes, there will be no need to reload the program, and the clock will continue to run normally.
The replacement battery must be of the type CR2032.
114 Chapter 18 Other functions Manual Corrigo Ventilation, revision S
Remove the cover by pressing down the locking torques at the edge of the cover using a small screwdriver, and at the same time pulling the edges outwards.
Battery location
Grip the battery firmly with your fingers and lift it upwards until it rises from its holder.
Press the new battery firmly down into place. Note: To preserve correct polarity, the battery can only be inserted the “right way round”!
18.7 Start-up wizard
The start-up wizard is a function that can be activated in "Configuration"/"System". See the section
Activation of start-up wizard.
If the wizard has been activated, the operator will access a number of menus at power-up. These menus contain certain operation parameters that should be set.
The wizard is useful when the controller is delivered pre-configured together with an air handling unit. After the controller has been configured, the manufacturer of the air handling unit will activate the start-up wizard, which will help the operator to set setpoint values, running times etc. without having to log on.
In the first menu, the language is chosen.
Manual Corrigo Ventilation, revision S Chapter 18 Other functions 115
Choose language
English
In the second menu, the setpoint is set. The appearance of the menu depends on which control type has been configured.
Supply air temp
Setp: 18°C
In the third menu, time and date are set.
Time: 14:27
Date: 2013-11-25
Weekday: Tuesday
In the fourth menu, the running time for normal speed Monday – Friday is set.
Normal speed
Monday
Friday
Per 1: 07:00 – 16:00
Per 2: 00:00 – 00:00
In the fifth menu, the running time for normal speed Saturday, Sunday and holiday is set.
Normal speed
Saturday
Holiday
Per 1: 00:00 – 00:00
Per 2: 00:00 – 00:00
If 2-speed fans or pressure/flow controlled fans have been configured, the corresponding times for reduced speed will be displayed in the sixth and seventh menus.
Reduced speed
Monday
Friday
Per 1: 07:00 – 16:00
Per 2: 00:00 – 00:00
Reduced speed
Saturday
Holiday
Per 1: 00:00 – 00:00
Per2: 00:00 – 00:00
The last menu is used to turn off the wizard, and the Corrigo will switch to normal running mode.
The selected values will be used.
The wizard will not be shown again during further use.
116 Chapter 18 Other functions Manual Corrigo Ventilation, revision S
18.8 Energy calculation
The total energy consumption of the air handling unit can be obtained by internally calculating the various partial outputs of system components. By combining the various outputs of heaters/coolers, fans, etc., current power consumption is calculated based on their combined output.
18.9 SFP (Specific Fan Power)
If fans are used that are controlled by frequency converters connected via Modbus and which also supply information on motor output, the Corrigo is capable of calculating SFP using the following formula:
SFP = Total effect from both fans / Supply air fan flow in kW / (m
3
/s).
“Extra pressure transmitter supply air” is always used to measure flow, if connected. Otherwise
”SAF Pressure” will be used or, alternatively, ”SAF Pressure 2” if fan control is ”Frequency control
SAF with EAF flow control”.
Power loss as a percentage of the frequency converter can be added for calculating the total output.
If, for instance, power loss is 5 %, the total output will be as follows:
Total output = (Supply air fan output + Extract air fan output) x 1.05.
A daily and a monthly average (always 30 days) are also computed and presented in the display and in E tool
©
. SFP for the average values is calculated only when the unit is running.
The display image is located under the menu Running modeRunning mode unit:
SFP: 0.0 kW/m3/s
Day: 0.0 kW/m3/s
Month: 0.0 kW/m3/s
Freq loss: 0 %
Manual Corrigo Ventilation, revision S Chapter 18 Other functions 117
Index
A
Access rights, 57
Actuator type, 95
Address, 111
Air control, 66
Alarm
Setting, 98
Alarm events, 60
Alarm list, 99
Alarm settings, 78
Alarms, 51
Alarm delay at startup, 107
Alarm delays, 79
Alarm handling, 113
Alarm limits, 78
Alarm list, 99
Analogue inputs, 17
Analogue outputs, 17
Automatic restart at power-up, 109
B
Battery exchanger. See Liquid connected exchanger
Blocking of automatic restart at power-up, 53
Blocking of high speed, 107
Buttons, 55
C
Cascaded extract air temperature control, 29
Cascaded room temperature control, 29
Change language, 110, 114
Change password, 58
Change-over, 40
Changing the battery, 114
Close-off dampers, 49
Communication, 102
Configuration, 84
Actuator type, 95
Alarm setting, 98
Battery type, 88, 89
Control function, 87
Cooling control, 89
Demand control, 92
Exchanger de-icing, 93
External setpoint, 94
Fan control, 87
Fire dampers, 92
Free cooling, 91
Heat exchangers, 89
Heater type, 88, 89
Humidity control, 93
In- and outputs, 84
Objects, 87
Other parameters, 107
Pump control, 90
Run indication / Motor protection, 94
Running time, 3-position actuators, 95
Step controllers, 95
Support control, 92
System, 110
Control CO
2
, 78
Control function, 87
Control pressure
Settings, 77
Control signal, analogue outputs. See
Cooling recovery, 38, 93
Crosswise interlock, 88
D
Damper control, 49
Damper limit, 93
De-icing Liquid connected exchanger. See Heat exchangers Liquid connected exchanger
De-icing plate exchanger. See Heat exchangers Plate exchanger
Demand control
Setpoint, 68
Demand controlled ventilation, 47, 92
Mixing dampers, 34
Digital inputs, 17
Digital outputs, 17
Display, 55
DX cooling, 34, 95
Min limit lowering, 90
Setting, 95
DX cooling, blocking, 90
E
ELA, 111
Electric heating, 31
Energy calculation, 117
Enthalpy control, 38, 93
Exchanger de-icing, 33, 93
Setpoint, 64
Expansion model, 82
Expansion unit and Modbus master, 104
Extended running, 71
External setpoint, 39, 94
Extra control circuit, 40
Extra flow sensors supply air and extract air, 40
Extra sequence Y4, 89
Extra sequence Y5, 89
Extra temperature sensor, 40
F
Fans
Control, 42
Delays, 107
Frequency control EAF with flow control SAF, 46
Frequency control external control signal, 45
Frequency control flow, 44
Frequency control SAF with EAF slave, 45
Frequency control SAF with flow control EAF, 45
Interlock, 88
Manual frequency control, 45
Pressure control, 43
Retardation time, 107
Timer output ½ speed, 71
Timer output 1/1 speed, 70
Fire dampers, 49, 92
Exercising, 50
Flow control
Extra compensation curve, 44
Outdoor compensation, 44
Setpoint, 44
Settings, 77
Free cooling, 37, 91
Free text, 113
Frost protection, 31
H
Hardware overview, 13
Heat exchanger
Mixing dampers, 33
Heat exchanger efficiency monitoring, 39, 64
Heat exchangers, 32
Liquid connected exchanger, 33
De-icing, 33
Outdoor temp control of exchangers, 33
Plate exchanger, 32
De-icing, 33
Rotating exchanger, 33
Start condition, 107
Holidays, 72
Hot start, 107
Humidity control, 41, 69, 93
Setpoint, 69
Settings, 78
I
In-/Outputs, 60
Indication LEDs, 114
Information screen, 113
Inputs and outputs, 17, 84
Analogue inputs, 17
Analogue outputs, 17
Digital inputs, 17
Digital outputs, 17
Input and output lists, 19
Universal inputs, 17
Intermittent drift, 92
L
Language, change, 110, 114
LEDs, 55, 114
Liquid connected exchanger, 33
Log off, 57
Log on, 57
Logoff, 112
M
Manual / Auto, 73
Menus, 55
Mixing dampers, 33
Modbus, 102
Model overview, 13
Motor protection / Run indication, 94
N
Navigating the menus, 55
O
Objects, 87
Other functions, 113
Other parameters, 107
Outdoor temp control of exchanger, 33
Outdoor temp. for control mode change, 109
Outdoor temperature compensated supply air control, 29
Outdoor temperature dependent switching between supply air temperature control and extract air temperature control, 30
Outdoor temperature dependent switching between supply air temperature control and room temperature control, 29
Outputs. See
Override of reduced speed for DX cooling, 90
P
Password, 58
PLA, 111
Plate exchanger, 32
Port 2, function, 104
Pressure control, 43
Extra compensation curve, 43
Outdoor compensation, 43
Setpoint, 43
Pretreatment, 98
Pump control, 48, 90
R
Recirculation, 39, 97
Remote control, 111
Restore alarm, 80
Revision number, 113
Rotating exchanger, 33
Run indication / Motor protection, 94
Running mode, 59
Running mode, unit, 59
Running time, 3-position actuators, 95
S
Save and restore settings, 81
Selected functions, 59
Setpoint fan control, 66
Setpoint humidity control, 69
Setpoint, external, 39, 94
Setpoints temperature, 61
Settings, 76
Shutdown mode, 31
Specific Fan Power, 117
Split of optional temp. sequence, 109
Split settings, 108
Start menu, 110
Starting and stopping the unit, 53
Start-up wizard, 112, 115
Status indication, 114
Step controllers, 34, 95
Setting, 95
Summer time, 111
Supply air control, 29
Support control, 36, 92
Cooling, 37
Heating, 37
T
Temperature, 61
Temperature control, 27
Settings, 76
Time settings, 70
Time/Date, 70
Timer output ½ speed, 71
Timer output 1/1 speed, 70
Timer outputs, 71
Time-switch outputs, 51
Types of chillers, 34
U
Universal inputs, 17
V,W
Vacon/Lenze/Omron/Emerson/LS/EBM frequency converters, 82
Water heating, 30
Wizard, 112
Appendix
Appendix Frequency converters and
pressure transmitters
Version 3.4 of Corrigo ventilation supports the frequency converters and pressure transmitters listed below:
• Vacon NXL
• Lenze
• Omron V1000
• Emerson Commander
• LS
• EBM
• Danfoss FC 101
• ABB ACS
• EC Blue
When communicating via frequency converters through Modbus, it is sometimes necessary to change certain settings in the frequency converter.
Two parallel connected frequency converters for supply air and two parallel connected frequency converters for extract air can be run. The supply air fan will have address 1 and the parallel supply air fan address 3. The extract air fan will have address 2 and the parallel extract air fan address 4.
Below is described what settings are necessary in the various models:
Vacon NXL
No settings necessary. Vacon NXL frequency converters are controlled via Modbus.
Communication, alarms and certain indications can be read:
The following signals can be read/written from/to the frequency converter:
Address Modbus register Name Scaling Type
2003
2001
11
80
2103
2105
2106
2107
1501
2110
2111
2101
32003, 42003
32001, 42001
30011, 40011
30080, 40080
32103, 42103
32105, 42105
32106, 42106
32107, 42107
31501, 41501
32110, 42110
32111, 42111
32101, 42101
FB speed reference (SP)
FB status word
Acc. motor output
Number of decimals for acc. motor output
FB motor speed
Motor speed
Current
Torque
Output
Voltage DC
Alarm
FB status word
1
1
1000
-
100
1
100
10
-
-
1000
1
The variables presented in the display of the Corrigo are:
Frequency (Hz), Current (A), Output (kW), Accumulated power (kWh).
%
Binary kW kWh
%
+/- Rpm
A
+/- % (of nominal) kW
V
Error code
Binary
Lenze
No settings necessary. Lenze frequency converters are controlled via Modbus. Communication, alarms and certain indications can be read.
The following signals can be read/written from/to the frequency converter:
Address Modbus register Name Scaling Type
49
50
45
2
512
528
509
511
506
30
27
32049, 42049
32050, 42050
30045, 40045
30002, 40002
32512, 42512
32528, 42528
32509, 42509
32511, 42511
31506, 41506
32110, 42110
32027, 42027
Password
Parameter version
FB speed reference (SP)
FB status word
Acc. motor output
Motor frequency
Current
Output
Voltage DC
Alarm
FB status word
-
-
50
-
1
10
1
-
-
1000
1
-
-
%
Binary kW
Hz
A kW
V
Error code
Binary
The variables presented in the display of the Corrigo are:
Frequency (Hz), Current (A), Output (kW), Accumulated power (kWh).
Omron V1000
Connected via RS485:
•
R+ is connected to S+
•
R- is connected to S-
•
R+/S+ is connected to B on port 1 or 2
•
R-/S- is connected to A on port 1 or 2
Parameters
The following parameters must be set from the display of the frequency converter:
•
H5-01 (0x425): Slave address, set to = 1 for Supply air fan and = 2 for Exhaust air fan
•
H5-07 (0x42B): RTS Control, set to = 1 (enabled) for activation of RS485
• o1-03 (0x502): Frequency reference units, set to = 1 for 0-100%.
•
H5-03 (0x427): Parity, set to = 0 (no parity)
Default values should be used for remaining parameters. The following values may not be changed:
•
H5-02 (0x426): Communication speed, default =3 (9600)
•
H5-04 (0x428): Stopping method after communication error, default = 3 (no stop)
•
H5-11 (0x43C): Communication Enter Function, default=1 (Enter command not necessary)
•
H5-12 (0x43D): Run command, default=0 (bit 0=forward start/stop, bit 1= reverse start/stop)
• b1-01 (0x180): Frequency Reference selection 1, default = 2 (via Modbus)
• b2-01 (0x181): Run command selection 1, default = 2 (via Modbus)
Omron frequency converters are controlled via Modbus. Communication, alarms and certain indications can be read.
The following signals can be read/written from/to the frequency converter:
Address Modbus register Name Scaling Type
39
40
38
33
3
2
36
63
34
93
30003, 40003
30002, 40002
30036, 40036
30063, 40063
30039, 40039
30040, 40040
30038, 40038
30033, 40033
30034, 40034
30093, 40093
FB Speed reference (SP) 10
Password -
Motor frequency
Motor speed
100
1
Current
Output
DC voltage
Status change
Alarm
Acc. Motor output
-
1
10
10
10
-
%
-
Hz
+/- Rpm
A kW
V
Binary
Binary kW
The variables presented in the display of the Corrigo are:
Frequency (Hz), Current (A), Output (kW), Accumulated power (kWh).
Emerson Commander
Connections RS485-RJ45:
•
RJ45:2 (orange) is connected to B on port 1 or 2
•
RJ45:7 (white/brown) is connected to A on port 1 or 2
•
If using a termination resistor, it should be connected between RJ45:1 (white/orange) and
RJ45:8 (brown).
If Modbus communication is not initialised after powering up, disconnect the termination resistor and try again.
Terminals
•
Connect terminal B4 (Drive enabled) to B2 (+24V)
•
Connect terminal B5 (Forward) to B2 (+24V)
Parameters
The following parameters must be set from the display of the frequency converter:
•
44: Slave address, set to = 1 (default) for Supply air fan and = 2 for Exhaust air fan
•
43: Baud rate: 9.6 (default: 19.2)
•
Default values should be used for remaining parameters.
Changing parameters
•
Deactivate the unit. The display should read “iH 0.0”. This is performed by opening terminal B4.
•
Set parameter 10 to ”L3”, i.e. all parameters up to and including 95 can then be altered.
•
Set parameter 43 to 9.6 (9600 baud).
Emerson frequency converters are controlled via Modbus. Communication, alarms and certain indications can be read:
The following signals can be read/written from/to the frequency converter:
Address Modbus register Name Scaling Type
501
2
504
402
114
18
1038
615
503
505
1040
30114, 40114
30018, 40018
31038, 41038
30615, 40615
30501, 40501
30002, 40002
30504, 40504
30402, 40402
30503, 40503
30505, 40505
31040 41040
Speed selection
FB speed reference (SP)
FB status word
Control switch
Motor frequency
Max speed
Motor speed
Current
Output
Voltage DC
Status change
10
10
1
10
10
1
-
-
-
-
10
-
%
-
Binary
Hz
Hz
+/- Rpm
A kW
V
Binary
The variables presented in the display of the Corrigo are:
Frequency (Hz), Current (A), Output (kW), Accumulated power (kWh).
LS
LS frequency converters are controlled via Modbus. Communication, alarms and certain indications can be read.
LS iG5A
The following signals can be read/written from/to the frequency converter:
Address Modbus register Name Scaling Type
21
9
13
12
14
15
29
5
6
10
31
30005,40005
30006,40006
30010,40010
30031,40031
30029,40029
30009,40009
30013,40013
30012,40012
30014,40014
30015,40015
30029,40029
FB speed reference (SP) 10
FB status word -
Motor frequency
Torque
100
100
RPM
Motor current
Output
Voltage
Status change
Alarm
Alarm 2
-
-
-
1
10
10
10
The variables presented in the display of the Corrigo are:
Frequency (Hz), Current (A), Output (kW), Accumulated power (kWh).
%
Binary
Hz
%
Rpm
A kW
V
Binary
Binary
Binary
5
6
10
791
786
784
790
789
14
816
817
LS iS7
The following signals can be read/written from/to the frequency converter:
Address Modbus register Name Scaling Type
30005,40005
30006,40006
30010,40010
30791,40791
30786,40786
30784,40784
30790,40790
30789,40789
30014,40014
30816,40816
30817,40817
FB speed reference (SP) 10
FB status word -
Motor frequency
Torque
100
100
RPM
Motor current
Output
1
10
10
Voltage
Status change
Alarm
Alarm 2
-
-
10
-
%
Binary
Hz
%
Rpm
A kW
V
Binary
Binary
Binary
EBM-PAPST
EBM frequency converters are controlled via Modbus. Communication, alarms and certain indications can be read.
The following signals can be read/written from/to the frequency converter:
Address Modbus register Name Scaling Type
53250
53249
53265
53266
53267
53268
53269
30250,40250
30249,40249
30265,40265
30226,40266
30267,40267
30268,40268
30269,40269
FB speed reference (SP) 640
FB control word -
RPM
FB status word -
Status change
DC voltage
Motor current
The variables presented in the display of the Corrigo are:
Frequency (Hz), Current (A), Output (kW), Accumulated power (kWh).
%
Rpm
Binary
Binary
V
A
Danfoss FC 101
Danfoss frequency converters are controlled via Modbus. Communication, alarms and certain indications can be read.
The following signals can be read/written from/to the frequency converter:
Address Modbus register Name Scaling Type
15
16
34
21
13
3100
50000
16130
16140
16100
16300
16030
33100,43100
350000,450000
316130,416130
316140,416140
316100,416100
316300,416300
316030,416030
FB speed reference (SP) 100
FB control word
Motor frequency
-
10
Current
Output
DC voltage
Status change
100
1000
1
-
%
Hz
A kW
V
The variables presented in the display of the Corrigo are:
Frequency (Hz), Current (A), Output (kW), Accumulated power (kWh).
ECBlue
ECBlue frequency converters are controlled via Modbus. Communication, alarms and certain indications can be read.
The following signals can be read/written from/to the frequency converter:
Address Modbus register Name Scaling Type
3
5
30003,40003
30005,40005
30015,40015
30016,40016
30034,40034
30021,40021
30013,40013
FB speed reference (SP) 1
FB control word -
RPM
Current
Output
DC voltage
Alarm
100
1
1
-
%
0 = off
3 = on
Rpm
A kW
V
Error code
R E G I N – T H E C H A L L E N G E R I N B U I L D I N G A U T O M A T I O N
AB Regin
Head office
Box 116, S-428 22 Kållered,
Sweden
Phone: +46 31 720 02 00
Fax: +46 31 720 02 50 [email protected]
www.regincontrols.com
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Key features
DIN-rail mounting
Temperature control
Humidity control
Fan speed control
Timer control
Demand controlled ventilation
Support control
Free cooling
Recirculation control
Step controllers Heating/Cooling
Frequently asked questions
The supply voltage is 24 V AC ±15%, 50…60 Hz or 21…36 V DC.
The dimensions are 148x123x60 (WxHxD incl. terminals).
The operating temperature range is 0…50°C.
The communication options include EXOline, Modbus, BACnet/IP, LON, and TCP/IP.
The inputs and outputs include analogue inputs, digital inputs, universal inputs, analogue outputs, and digital outputs.
