Daikin D-AHU Professional AH-ERQ-U User manual

Digital AHU
ADK
D-STREAM
Revision
01
Date
06/2021
Supersede
D-EOMOAH00903-21EN
OPERATING MANUAL
D-EOMOAH00903-21_01EN

D-EOMOAH00903-21_01EN - 2 / 37
Table of Contents
1About this document..............................................................................................................3
1.1 Revision History..............................................................................................................................3
1.2 Notice.............................................................................................................................................3
1.3 Before starting................................................................................................................................3
2Safety Information.................................................................................................................4
3Introduction........................................................................................................................... 5
4Basic Control System Diagnostic........................................................................................... 6
5Control Functions..................................................................................................................7
6Main Menu screen................................................................................................................. 8
6.1 Control Source................................................................................................................................8
6.2 Actual Mode ...................................................................................................................................9
6.3 Unit State...................................................................................................................................... 10
6.4 Active Setpoint.............................................................................................................................. 11
6.5 Local Switch................................................................................................................................. 12
6.6 Summer/Winter state.................................................................................................................... 13
6.7 Setpoints ...................................................................................................................................... 14
6.8 I/O Overview................................................................................................................................. 17
6.9 Time Scheduler ............................................................................................................................ 18
6.10 Alarm handling.............................................................................................................................. 21
6.11 About Unit..................................................................................................................................... 28
7Modbus nodes diagnostic and alarms..................................................................................30
7.1 Node#HardwareErr....................................................................................................................... 30
7.2 Node#CommErr............................................................................................................................ 30
7.3 Node#InOutErr ............................................................................................................................. 30
7.4 Node#DP1Err............................................................................................................................... 30
7.5 Node#DP2Err............................................................................................................................... 31
7.6 Modbus nodes troubleshooting..................................................................................................... 31
8Appendix A: Room Unit Module - POL822...........................................................................32
8.1 Buttons Overview ......................................................................................................................... 32
8.2 Display Overview.......................................................................................................................... 33
8.3 AHU On-Off (1)............................................................................................................................. 34
8.4 Occupancy On-Off (2)................................................................................................................... 34
8.5 Date and time (3).......................................................................................................................... 34
8.6 Temperature Setpoint Offset (4 & 5)............................................................................................. 34
8.7 Fan Speed Display (7).................................................................................................................. 35
8.8 Summer/Winter changeover (8).................................................................................................... 35
8.9 Mounting instructions.................................................................................................................... 35

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1 About this document
1.1 Revision History
Name
Revision
Date
Scope
D-EOMOAH00903-21_01EN
1
June 2021
Second edition
•Modified table page 28 –Led yellow #5 of
Modbus node doesn’t represent a
communication error. At present software
versions, if blinking only indicates that at least
once communication has been interrupted.
The only indicator for communication state is the
BLUE led.
D-EOMOAH00903-21EN
0
March 2021
First edition
1.2 Notice
© 2014 Daikin Applied Europe, Cecchina, Roma. All rights reserved throughout the world . The following are
trademarks or registered trademarks of their respective companies:
•MicroTech 4 from Daikin Applied Europe.
1.3 Before starting
Application
range
This document refers to the following components:
Microtech 4
Controller
Users
Users of this document are intended to be:
-AHU users
-Sales staff
Conventions
MicroTech 4 further in this document and when proper will be referred to as “MicroTech”

D-EOMOAH00903-21_01EN - 4 / 37
2 Safety Information
Observe all safety directions and comply with the corresponding general safety regulations in order to prevent personal
injury and damage to property.
•Safety devices may not be removed, bypassed or taken out of operation.
•Apparatus and system components may only be used in a technically fault-free state. Faults that can affect safety
must be rectified immediately.
•Observe the required safety instructions against excessively high contact voltages.
•The plant may not be in operation if the standard safety devices are out of operation or if their effects are
influenced in some other way.
•All handling that affects the prescribed disconnection of the protective extra-low voltage (AC 24 V) must be
avoided.
•Disconnect the supply voltage before opening the apparatus cabinet. Never work when the power is on!
•Avoid electromagnetic and other interference voltages in signal and connection cables.
•Assembly and installation of system and plant components may only be performed in accordance with
corresponding installation instructions and instructions for use.
•Every electric part of the system must be protected against static charging: electronic components, open printed
circuit boards, freely accessible connectors and apparatus components that are connected with the internal
connection.
•All equipment that is connected to the system must be CE marked and comply with the Machine Safety Directive.

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3 Introduction
This operating manual provides the basic information that allows the control of the Daikin Air Handling Unit (AHU). AHUs
are used for air conditioning and air handling in terms of temperature, humidity and CO2level control. There are four types
of AHU, based on the external devices used to produce cooling or heating:
1. AH-ERQ-U
The AH-(ERQ)-U is connected with the Daikin ERQ condensing unit;
2. AH-W-U
The AH-(Water)-U is connected with an external device that provides hot water or cold water used in a water heat
exchanger;
3. AH-DX-U
The AH-(Direct eXpansion)-U is connected with an external condenserless unit;
4. AH-WDX-U
This type of AH-(Water Direct eXpansion)-U can be connected to both water and direct expansion devices.
5. AH-X-U
This type of AHU is not connected to a principal treatment device, or this is of electric type. Refer to
Commissioning Guide for further details.

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4 Basic Control System Diagnostic
Unit controller, extension modules and communication modules are equipped with two status LED, BSP and BUS, to
indicate the operational status of the devices. The “BUS”LED indicates the status of the communication with the controller.
The meaning of the two status LED is indicated below.
-MAIN CONTROLLER
- BSP LED
LED Color
Mode
Solid Green
Application running
Solid Yellow
Application loaded but not running (*) or BSP Upgrade mode active
Solid Red
Hardware Error (*)
Flashing Green
BSP startup phase. The controller needs time for starting.
Flashing Yellow
Application not loaded (*)
Flashing Yellow/Red
Fail safe mode (in case that the BSP upgrade was interrupted)
Flashing Red
BSP Error (software error*)
Flashing Red/Green
Application/BSP update or initialization
(*) Contact Service.
-EXTENSION MODULES
- BSP LED
LED Color
Mode
Solid Green
BSP running
Solid Red
Hardware Error (*)
Flashing Red
BSP Error (*)
Flashing Red/Green
BSP upgrade mode
- BUS LED
LED Color
Mode
Solid Green
Communication running, I/O working
Solid Yellow
Communication running but parameter from the application wrong or missing, or
uncorrect factory calibration
Solid Red
Communication down (*)

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5 Control Functions
This section describes the main control functions available in Daikin Air Handling Units. A typical activation sequence of
the devices installed in Daikin AHU for thermoregulation control is showed below.
The starting sequence is performed according to an energy saving management logic, in order to satisfy the desired
temperature setpoint.
As soon as a device is fully operational (i.e. operates at 100%), the next device starts according to the sequence shown in
the figure above. The same sequence describes also the devices turn-off order by following the opposite direction, ensuring
that the upper devices are directly controlled only when the lowest ones are not working. This ensure that the temperature
setpoint is always satisfied with the lowest energy consumption.
The activation sequence strictly depends on the devices actually installed in your AHU, so it may changes
accordingly.
Mixing Damper
Supply/Return
Fan Start
Fresh/Exhaust
Air Damper Opening
Heat Recovery Device
ERQ
+
Heating Water
Coil
ERQ
Heating
Water Coil
Electric Coil
Cooling
Water Coil
ERQ
Heating
Cooling

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6 Main Menu screen
Through Main Menu screen the user can access to all the information necessary for monitoring the AHU status, in addition
to managing the unit operative mode.
In particular, the user can:
-Control the AHU operative mode
-Change the AHU Setpoint
-Change the Summer/Winter state
-Access to the I/O overview menu
-Program the time scheduler
-Restore alarm conditions
Next chapters will describe any item of the main menu.
6.1 Control Source
This item displays the actual control source of the AHU. All possible control source are reported in the table below.
HMI Path: Main Menu -> Ctrl Source
Main Menu item
Value
Description
Control Source
- Local
- BMS
− Local:
a. HMI:unit control managed directly from the controller interface or
automatically via time scheduler. Refer to Local Switch page for
more details.
b. Room Unit: when Control Source is set to Local, the unit can be
controlled also through the Room Unit device (POL822), if installed.
Refer to Appendix Afor more details on Room Unit control.
−BMS:
a. Modbus:the unit can be controlled by a Modbus Master device
through Modbus protocol, if the corresponding communication
module is installed (POL902). Refer to D-EOMOCAH202-18EN for
more details.
b. BACnet: the unit can be controlled through BACnet communication
if the corresponding communication module is installed
(POL904/POL908). Refer to D-EOMOCAH10009 for more details.

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Value for Ctrl Source determines the priority chain among available control sources, included the Panel switch, according
to the following table:
6.2 Actual Mode
This item (read-only) displays the actual operating mode of the AHU. All possible operating mode are reported in the table
below.
HMI Path: Main Menu -> Actual Mode
Main Menu item
Value
Description
Actual Mode
- Off
- On
- Ventilation
- Economy
Off: AHU in Off mode.
All devices installed on the AHU (fans, cooling/heating coil, dampers, etc..)
are Off.
On :AHU in On mode.
Normal functioning: all controls are active.
Ventilation : AHU in Ventilation mode.
In this mode only fans are running.
Economy: AHU in Economy mode.
Normal functioning: all controls are active, but the AHU works referring to the
Economy set points.
Refer to Setpoints page for more details.

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6.3 Unit State
This item (read-only) displays the actual state of the AHU. All possible states are reported in the table below.
HMI Path: Main Menu -> Unit State
Main Menu item
Value
Description
Unit State
- Fire
- Emergency
- Alarm
- Manual
- Panel Switch
- Local Switch
- BMS
- Scheduler
- Ready
- Occupancy
Fire : AHU in Fire alarm state.
The AHU is in this state when a “ Fire Alarm” digital input is detected.
Emergency: AHU in Emergency state
This state indicates that the Emergency button has been pressed.
Alarm : AHU in alarm state.
This state is displayed when an alarm has been detected.
Manual: AHU in Test mode.
The AHU is in this state when Local Switch is set to Test .
Refer to Local Switch page for more details.
Panel Switch : Switch labeled “Enable Switch” located on the Electrical
Box is set to zero.
Local Switch : Local Switch setpoint in the HMI or switch on/off control
from Room Unit Interface are set to off.
BMS: Network control by BMS is set to off.
Scheduler : AHU in On state by Time Scheduler.
Refer to Time Scheduler page for more details
Ready: AHU in Off state by Time Scheduler.
Refer to Time Scheduler page for more details.
Occupancy: AHU in On state by Occupancy function.
Refer to Room Unit page for more details. ( Appendix A )

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6.4 Active Setpoint
All actual setpoints used by the software to control AHU devices are reported in the Active Setpoint page.
In the Main Menu screen is displayed the actual setpoint used for controlled temperature.
HMI Path: Main Menu -> Active Setpoint
Parameters
Description
Temperature
Display the actual setpoint used for the controlled temperature.
This value is the sum of the basic setpoint (given by Summer/Winter
state) plus the offset set through the Room unit (R.U.), if present.
-Summer mode
Temperature = Cool (+ R.U. Offset, if present)
-Winter mode
Temperature = Heat (+ R.U. Offset, if present)
Supply Fan
Display the actual setpoint value for the supply fan.
This value is the sum of the basic setpoint plus the offset evaluated by the
software for compensation (if a compensation function is active).
Supply Fan = Supply Fan (+ Comp. Offset, if
active)
Return Fan
Display the actual setpoint value for the return fan.
This value is the sum of the basic setpoint plus the offset evaluated by the
software for compensation (if a compensation function is active).
Return Fan = Return Fan (+ Comp. Offset, if
active)
Humidification
Display the actual humidification setpoint.
Dehumidification
Display the actual dehumidification setpoint.
Air Quality
Display the actual air quality setpoint.

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6.5 Local Switch
This item is used to control locally the operating mode of the AHU.
NOTE! Note: Local switch must set to a value not Off or Test in order the BMS to be able to turn unit
ON provided that Control Source is set to BMS. (see Control source priority chain).
HMI Path: Main Menu -> Local Switch
Main Menu item
Value
Description
Local Switch
- Auto
- Off
- On
- Ventilation
- Economy
- Test
Auto :AHU On-Off state is managed by the time scheduler.
Refer to Time Scheduler page for more details.
Off: turn off the AHU.
On :turn on the AHU.
In this mode all controls are active and setpoints related to temperature
regulation and fans control are the normal setpoints.
Refer to Setpoints page to change normal setpoints.
Ventilation : Switch the AHU in ventilation mode.
In this mode only fans are running.
No temperature control is performed.
Economy : Switch the AHU in economy mode.
In this mode all controls are active, but the setpoints related to temperature
regulation and fans control switch from normal setpoints to economy
setpoints.
Refer to Setpoints page to change economy setpoints.
Test: AHU in Test mode.
In this mode every device of the AHU can be manually controlled.
NOTE! This function is only available with service password
entered and the item is visible only if the AHU is OFF.

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6.6 Summer/Winter state
The AHU software provides several options for summer/winter changeover control:
Auto Mode
The controller monitors one of the several temperatures available on the AHU (Room, Return or
Outside). The value of this temperature is compared with two limits (one for summer and one for
winter) and, depending on the result of this comparison, the controller chooses the cool/heat state
for the next period.
Manual Mode
The changeover is managed via controller interface or through the Room Unit device (if installed).
Pursuit Mode
This logic can be used when it is desired to follow a temperature setpoint, regardless of the actual
heating/cooling mode of the unit.
The unit will automatically switch to Summer/Winter state when the actual controlled temperature
has passed respectively the to Summer/to Winter thresholds, which are calculated based on the
actual temperature setpoint selected.
BMS
The changeover is managed via a Building Management System (BMS) through BACnet or
Modbus protocol communication.
For additional information on summer/winter changeover logics and settings refer to Summer/Winter state section.
The available summer/winter changeover modes depend on the components and functions configured
in the AHU, so the number and configuration may changes accordingly.
The AHU software provides three different options for summer/winter changeover control:
-Automatic changeover based on temperature.
The controller monitors one of the several temperatures available on the AHU (Room, Return or Outside). The
value of this temperature is after compared with two limits (one for summer and one for winter) and, depending
on the result of this comparison, the controller chooses the cool/heat state for the next period.
-Manually changeover via HMI or Room Unit.
-Changeover managed via BMS.
All information and settings for this control are available in the following HMI page:
HMI Path: Main Menu -> Su/Wi State
The following table explains all items present in the Su/Wi state page and how configure them to obtain the desired
control.

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Parameters
Value
Description
Su/Wi chg
source
1. Auto
2. HMI
3. BMS
4. Pursuit*
This parameter defines which mode is used to control the
Summer/Winter switch:
1. Auto: changeover is done automatically by the AHU based
on the auto mode configuration
2. HMI: Summer/Winter state is set manually by the HMI
3. BMS: Summer/Winter state is set via BMS communication.
4. Pursuit*: changeover is performed automatically in order to
reach and maintain the desired temperature setpoint. Refer to
Setpoints page to change Pursuit mode setpoints.
*Available from Airstream 1.00.A software version and only if Return or
Room temperature control has been selected.
HMI changeover
- Summer
- Winter
Set actual mode of the AHU if Su/Wi chg source = HMI
Network
changeover
- Summer
- Winter
Display the mode set via BMS.
If the Su/Wi chg source = BMS , this value is the current state of
the AHU.
Current State
- Summer
- Winter
Display the current state in which the AHU is operating.
Auto mode settings:
Tmp Used
- Return
- Room
- Outside
Select the temperature monitored to determine the Summer/Winter
state changeover.
Time constant
0…36000 [h]
Define the frequency at which the check is being performed for the
Summer/Winter changeover in Auto Mode.
Example:
If this parameter is set equal to 6 hours, the controller maintains the
same state (Summer or Winter) for six hours. After six hours, the
controller performs again the check to determine the next state that will
be maintained for next six hours.
Tmp Damped
-64...64 [°C]
Display the value of temperature stored when automatic changeover
happened.
Su tmp
-64...64 [°C]
Changes over to summer operation when the selected temperature is
greater than this value.
Wi tmp
-64...64 [°C]
Changes over to winter operation when the selected temperature is
less than this value.
6.7 Setpoints
All setpoints of the AHU can be set from the HMI. Depending on the AHU configuration some setpoints can be available
or not.
HMI Path: Main Menu -> Setpoints

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Parameters
Value Range
Description
Temperature:
Cool
10..40 [°C]
Cooling temperature setpoint.
(Available when direct Htg/Clg setpoint
control selected)
Heat
10..40 [°C]
Heating temperature setpoint.
(Available when direct Htg/Clg setpoint
control selected)
Cool Economy
Cool..40 [°C]
Cooling temperature setpoint in Economy
mode.
(Available when direct Htg/Clg setpoint
control selected)
Heat Economy
10..Heat [°C]
Heating temperature setpoint in Economy
mode.
(Available when direct Htg/Clg setpoint
control selected)
Central Temp
10..40 [°C]
Central temperature setpoint.
(Available only when temperature regulation
with deadzone control selected)
Band Temp
0..20 [°C]
Deadzone temperature setpoint.
(Available only when temperature regulation
with deadzone control selected)
Central Temp
Economy
Cool..40 [°C]
Central temperature setpoint in Economy
mode.
(Available only when temperature regulation
with deadzone control selected)
Band Temp
Economy
10..Heat [°C]
Deadzone temperature setpoint in Economy
mode.
(Available only when temperature regulation
with deadzone control selected)
Pursuit
10..40 [°C]
Pursuit mode temperature setpoint. Refer to
Summer/Winter state for more details.
(Available from Airstream 0.10.B SW version
and only if Return or Room
temperature control has been selected)
Pursuit Eco
10..40 [°C]
Pursuit mode temperature economy
setpoint.
Refer to Summer/Winter state for more
details.
(Available from Airstream 0.10.B SW version
and only if Return or Room
temperature control has been selected)
Pursuit Band
3,5..10 [°C]
Pursuit mode offset temperature setpoint.
This value is added/subtracted from actual
Pursuit setpoint in order to estimate
Summer/Winter changeover tresholds. Refer
to Summer/Winter state for more
details.
(Available from Airstream 0.10.B SW version
and only if Return or Room temperature
control has been selected)
R.U. Offset
-6…6 [°C]
Display the actual offset set through the
room unit.
(Available only with room unit)
Pre-Heating
0..30 [°C]
Temperature threshold for Pre-Heating
control activation.

D-EOMOAH00903-21_01EN - 16 / 37
(Available only if pre-heating control
enabled)
Fan Ventilation:
Supply
0..100 [%]
0..4000[Pa]
0..140000[m3/h]
Fans setpoints.
Depending on the control type of the fan, the
setpoint can be expressed in Percentage
[%], Pascal [Pa], Cube meter per hour
[m3/h].
(Not available if fans are controlled in On/Off
mode)
Return
0..100 [%]
0..4000[Pa]
0..140000[m3/h]
Supply Economy
0..100 [%]
0..4000[Pa]
0..140000[m3/h]
Return Economy
0..100 [%]
0..4000[Pa]
0..140000[m3/h]
Supply Defrost
0..100 [%]
0..4000[Pa]
0..140000[m3/h]
Supply fan setpoint in case of defrost of the
condensing unit ERQ
(Available only if fan-defrost limitation control
enabled)
Return Defrost
0..100 [%]
0..4000[Pa]
0..140000[m3/h]
Return fan setpoint in case of defrost of the
condensing unit ERQ
(Available only if fan-defrost limitation control
enabled)
Supply filter #
Warning
# = 1,2,3,4
0..1000 Pa
Differential Pressure threshold for Warning
on supply filter # Alarm
Return filter #
Warning
# = 1,2
0..1000 Pa
Differential Pressure threshold for Warning
on return filter # Alarm
Others:
Dehumidification
- 0…100 [%rH]
- Humidification…100 [%rH] (if humidification
control enabled)
Dehumidification setpoint
(Available only if dehumidification control
enabled)
Humidification
- 0…100 [%rH]
- 0…Dehumidification [%rH] (if dehumidification
control enabled)
Humidification setpoint.
(Available only if humidification control
enabled)
Air Quality
0..3000 [ppm]
Aircontrol quality setpoint. Limit of ppm (parts
per million) for the CO2.
(Available only if CO2 control enabled)
Fan fire
setpoint
0..100 [%]
Fans setpoints when fire alarm detected.
(Available only if Fire Alarm enabled)

D-EOMOAH00903-21_01EN 17 / 37
6.8 I/O Overview
This menu allows the user to monitor all analog/digital inputs and outputs of the controller. The list can be different for each
specific AHU as it depends on the installed components of the unit which are activated during the commissioning.
HMI Path: Main Menu -> I/O overview
Parameters
Description
Digital inputs
Monitor all digital inputs of the controller.
Digital inputs can be connected to alarm signals coming from different installed
devices in the AHU (Fan, Damper, Pressure Switch, Water Pump, etc…), or to
external switches (Emergency stop, Unit enable).
Analog inputs
Contains the values of all installed sensors: temperature, pressure, air flow,
CO2, humidity.
Digital outputs
Contains the values of all digital outputs used to command the several devices
of the AHU (ERQ on/off, Pump on/off, Fan on/off, etc…).
Analog outputs
Contains the values of all analog outputs used to command different devices of
the AHU (Fan speed, damper opening, percentage of heat recovery, etc…).

D-EOMOAH00903-21_01EN - 18 / 37
6.9 Time Scheduler
The time scheduler is a function that allows the user to set the time slots at which the AHU can be turned ON or OFF. If
the scheduler is set, the AHU will be turned On/Off automatically by following the time slot configuration. In the next tables
are reported the items of the time scheduler menu and their description. The time scheduler page contains also the
configuration pages for single day time scheduling.
HMI Path: Main Menu -> Time Scheduler
Parameter
Value
Function
TS actual state
- Off
- On
-
Ventilation
- Economy
Actual operating mode from time scheduler function.
Monday
- Active
- Passive
Active if the present day is Monday.
Refer to Day Scheduler for more details.
Copy schedule
- Off
- On
Copy Monday schedule to all weekdays.
Tuesday
- Active
- Passive
Active if the present day is Tuesday.
Refer to Day Scheduler for more details.
….
….
….
Sunday
- Active
- Passive
Active if the present day is Sunday.
Refer to Day Scheduler for more details.
Exception
- Passive
- Active
Active if the present day is an exception day.
Refer to both Day Scheduler and Calendar Exception and Calendar
Fix off for more details.
Period: Start
Start date for the weekly schedule.
If equals to *,* *.00, weekly schedules is always enabled.
Period: End
End date for the weekly schedule.
If equals to *,* *.00, weekly schedules is never disabled.
Calendar
exception
- Passive
- Active
Active if the present day is an exception day.
Refer to Calendar Exception/Fix off for more details.
Calendar fix
off
- Passive
- Active
Active if the present day is a fix off day.
Refer to Calendar Exception/Fix off for more details.

D-EOMOAH00903-21_01EN 19 / 37
6.9.1 Day Scheduler
By entering in each day page, normal or exception, it is possible to set up to 6 time slots.
Parameter
Range
Function
Time 1
00:00
SPECIAL CASE: this entry must always be set to 00:00!
Value 1
- Off
- On
- Ventilation
- Economy
Switching command for Time 1.
Time 2
00:00 - 23:59
Switching time 2
(*:*-> Entry disabled)
Value 2
- Off
- On
- Ventilation
- Economy
Switching command for Time 2.
…
Time 6
00:00 - 23:59
Switching time 6
(*:*-> Entry disabled)
Value 6
- Off
- On
- Ventilation
- Economy
Switching command for Time 6
Below is an example of a day scheduler setting. In this case the AHU will be turned ON from 9.30 until 13.00 and in
Economy mode from 14:00 until to 18:40.
ATTENTION! If a time value is set incorrectly (i.e. it is less than the previous) the AHU will not work properly and it could
be always keep ON or OFF.
6.9.2 Calendar exception and Calendar fix off
Exception days are defined in the calendar items. These may include a specific date, periods or certain days of the week.
When an exception day occurs, the “Exception” day scheduler configuration override the weekly schedule. The time slots
at which occurs the exception days can be configured in the “Calendar exception” page. The “Calendar fix Off”page is a
special exception day configuration that allows to switch off the plant at specific time slots.
Entering in the “Calendar exception” or “Calendar fix off”page allows the user to find the items reported in the table below.
Parameter
Value
Time 1
00:00
Value 1
Off
Time 2
09:30
Value 2
On
Time 3
13:00
Value 3
Off
Time 4
14:00
Value 4
Economy
Time 5
18:40
Value 5
Off
Time 6
*:*
Value 6
Off

D-EOMOAH00903-21_01EN - 20 / 37
Parameter
Range
Function
Present value
- Passive
- Active
Displays whether a calendar entry is currently enabled:
−No calendar entry is currently enabled.
−A calendar entry is currently enabled.
Choice-x
- Date
- Range
- Week Day
- Passive
Specifies the entry for the exception:
−Date: a certain day (e.g. Friday).
−Range: a period (e.g. vacation).
−Week Day: a certain day of the week (e.g. every Monday).
−Passive: entries are ignored.
This value should be set last, after the date is entered.
(Start) date
If Choice-x = date -> Enter data for a single day.
If Choice-x = range -> Enter start date for the period.
End date
For Choice-x = range only -> Enter end date for the period.
End date must always be after the start date.
Weekday
For Choice-x = weekday only -> Enter the day of the week.
Example 1: Choice = Date
Only the entry in (start) is relevant:
- (start) date = *,01.01.09
Result: January 1, 2009 is an exception date.
- (Start) date = Mo,*.*.00
Every Monday is an exception day.
- (Start) date = *,*.Evn.00
The days for the entire month are exception day for each even month (February, April, June, August, etc.).
Example 2: Choice = Range
The entries in (start) date and end date are relevant:
- (start) date = *,23.06.09 / end date = *,12.07.09.
June 23, 2009 through July 12, 2009 are exception days (e.g. vacation).
- (start) date = *,23.12.00 / end date = *,31.12.00.
December 23 through 31 are exceptions for each year. The entry end date =*,01.01.00 does not work
here, since January 1 is before December 23.
- (start) date = *,23.12.09 / end date = *,01.01.10.
23. December 23, 2009 through January 1, 2010 are exception days.
- (Start) date = *,*.*.00 / -End date = *,*.*.00
Attention! This entry is always enabled! The plant is continuously on exception or off.
Example 3: Choice = Weekday
The entries for week day are relevant.
- Week day = *,Fr,*
Every Friday is an exception day.
- Week day = *,Fr,Evn
Each Friday in even months (February, April, June, August, etc.) is an exception day.
- Week day = *,*,*
Attention! This settings always enables “calendar exception”or “calendar off”days.