Emerson Dixell iPro Master IPM500D Wiring diagram

IPM500D (V.4.4)
USER MANUAL
(Internal Use Only)

User manual IPM500 EN rel1.0.doc iPro Series 2/48
INDEX
1. IMPORTANT RECOMMENDATIONS 3
1.1 PRODUCT DISPOSAL (WEEE) 4
2. GENERALITIES 5
3. AVAILABLE APPLICATION CONFIGURATIONS 6
3.1 PLANT WITHOUT DEDICATED RESOURCES 6
3.2 PLANT WITH DEDICATED RESOURCES 7
4. MAIN FUNCTIONS 8
5. USER INTERFACE VISOGRAPH 1.0 10
5.1 VISOGRAPH SCREENS 10
5.1.1 MAIN SCREEN..........................................................................................................................................................................10
5.1.2 SET POINT SCREEN – FROM MAIN SCREEN .....................................................................................................................11
5.1.3 UNITS SCREEN – FROM MAIN SCREEN..............................................................................................................................11
5.1.4 ALARM & NOTIFY SCREEN – FROM ANY SCREEN............................................................................................................12
5.1.5 SERVICE SCREEN – FROM MAIN SCREEN.........................................................................................................................13
5.1.6 SYSTEM STATUS SCREEN – FROM SERVICE SCREEN...................................................................................................13
5.1.7 UNIT STATUS SCREEN – FROM SYSTEM STATUS SCREEN...........................................................................................14
5.1.8 UNIT PROBE STATUS SCREEN – FROM SYSTEM STATUS SCREEN.............................................................................14
5.1.9 SYSTEM PROBE STATUS SCREEN – FROM SYSTEM STATUS SCREEN ......................................................................16
5.1.10 SYSTEM PUMP STATUS SCREEN – FROM SYSTEM STATUS SCREEN....................................................................16
5.1.11 FUNCTIONS SCREEN – FROM SERVICE SCREEN........................................................................................................17
5.1.12 WORKING HOURS SCREEN – FROM SERVICE SCREEN.............................................................................................19
5.1.13 TIME BANDS SCREEN – FROM SERVICE SCREEN.......................................................................................................20
5.1.14 TIME AND DATE SCREEN – FROM TIME BANDS SCREEN ..........................................................................................21
5.1.15 PARAMETERS SCREEN – FROM SERVICE SCREEN....................................................................................................21
5.2 STAGES ROADMAP 24
5.2.1 PAGE 1......................................................................................................................................................................................24
5.2.2 PAGE 2......................................................................................................................................................................................25
6. PARAMETERS LIST 26
6.1 PARAMETERS GROUPS 26
6.1.1 PARAMETERS CF....................................................................................................................................................................26
6.1.2 PARAMETERS ST....................................................................................................................................................................27
6.1.3 PARAMETERS EX....................................................................................................................................................................28
6.1.4 PARAMETERS OL....................................................................................................................................................................32
6.1.5 PARAMETERS RO...................................................................................................................................................................33
6.1.6 PARAMETERS BK....................................................................................................................................................................34
6.1.7 PARAMETERS RT....................................................................................................................................................................35
7. ALARMS LIST 37
7.1 IPRO.LINK (IPL500D) 41
7.1.1 Description of the connections..................................................................................................................................................41
7.1.2 Description of the inputs and outputs.......................................................................................................................................42
7.1.3 Technical specifications............................................................................................................................................................42
7.1.3.1 Wiring diagrams...............................................................................................................................................................42
7.1.3.2 Mechanical specifications................................................................................................................................................43
7.1.3.3 Electrical specifications....................................................................................................................................................43
7.1.3.4 Plastic container...............................................................................................................................................................43
7.2 IPX106D 44
7.2.1 Description of the connections..................................................................................................................................................44
7.2.2 Description of the inputs and outputs.......................................................................................................................................45
7.2.3 Technical specifications............................................................................................................................................................46
7.2.3.1 Analogue inputs ...............................................................................................................................................................46
7.2.3.2 Digital inputs.....................................................................................................................................................................46
7.2.3.3 Analogue outputs.............................................................................................................................................................46
7.2.3.4 Digital outputs ..................................................................................................................................................................46
7.2.3.5 Wiring diagrams...............................................................................................................................................................47
7.2.3.6 Mechanical specifications................................................................................................................................................47
7.2.3.7 Electrical specifications....................................................................................................................................................47
7.2.3.8 Plastic container...............................................................................................................................................................48
7.2.3.9 Setting the address of the device....................................................................................................................................48

User manual IPM500 EN rel1.0.doc iPro Series 3/48
1. IMPORTANT RECOMMENDATIONS
The symbol alerts the user of non-insulated “dangerous voltage” within the product area that
is sufficiently high to constitute a risk of electric shock to persons.
The symbol alerts the user of important operating and maintenance (assistance) instructions
found in the documentation attached to the device.
Dixell Srl cannot accept any liability for damages caused by modems that are not supported. Dixell
Srl reserves the right to modify this manual without prior notice. The documentation can be
downloaded from www.dixell.com even prior to purchase.
This manual form part of the product and must always be kept near the device for easy and quick
reference. The device cannot be used as a safety device. Verify the limits of application before using
the device.
Verify that the power supply voltage is correct before connecting the device. Do not expose it to
water or humidity: use the controller only within the operating limits, avoiding sudden changes in
temperature and high atmospheric humidity in order to prevent condensation from forming.
Recommendation: disconnect all the electric connections before performing any maintenance. Insert
the probe where it cannot be reached by the End User. The device must not be opened. Consider
the maximum current that can be applied to each relay. Make sure that the wires for the probes, the
loads and the electrical power supply are separated and sufficiently distant from each other, without
crossing or intertwining with each other. In the case of applications in industrial environments, it may
be useful to use the main filters (our mod. FT1) in parallel to the inductive loads.
The customer shall bear full responsibility and risk for product configuration in order to achieve the
results pertaining to installation and/or final equipment/system. Upon the customer's request and
following a specific agreement, Dixell s.r.l. may be present during the start-up of the final
machine/application, as a consultant, however, under no circumstances can the company be held
responsible for the correct operation of the final equipment/system.
Since Dixell products form part of a very high level of technology, a
qualification/configuration/programming/commissioning stage is required to use them as best as
possible. Otherwise, these products may malfunction and Dixell cannot be held responsible. The
product must not be used in any way that differs from that stipulated in the documentation.
The device must always be inserted inside an electrical panel that can only be accessed by
authorised personnel. For safety purposes, the keyboard must be the only part that can be reached.
The device must never be hand-held while being used.
It is good practice to bear the following in mind for all Dixell products:
oPrevent the electronic circuits from getting wet as contact made with water, humidity or any
other type of liquid can damage them. Comply with the temperature and humidity limits
specified in the manual in order to store the product correctly.
oThe device must not be installed in particularly hot environments as high temperatures can
damage it (electronic circuits and/or plastic components forming part of the casing). Comply
with the temperature and humidity limits specified in the manual in order to store the product
correctly.
oUnder no circumstances is the device to be opened - the user does not require the internal
components. Please contact qualified service personnel for any assistance.

User manual IPM500 EN rel1.0.doc iPro Series 4/48
oPrevent the device from being dropped, knocked or shaken as either can cause irreparable
damage.
oDo not clean the device with corrosive chemical products, solvents or aggressive detergents.
oThe device must not be used in applications that differ from that specified in the following
material.
Separate the power of the device from the rest of the electrical devices connected inside the
electrical panel. The secondary of the transformer must never be connected to the earth.
Dixell Srl reserves the right to change the composition of its products, even without notice,
ensuring the same and unchanged functionality."
1.1 PRODUCT DISPOSAL (WEEE)
With reference to the Directive 2002/96/EC of the European Parliament and of the Council of 27 January
2003 and to the relative national legislation, please note that:
There lies the obligation not to dispose of electrical and electronic waste as municipal waste but to
separate the waste.
Public or private collection points must be used to dispose of the goods in accordance with local
laws. Furthermore, at the end of the product's life, it is also possible to return this to the retailer when
a new purchase is made.
This equipment may contain hazardous substances. Improper use or incorrect disposal can have
adverse effects on human health and the environment.
The symbol shown on the product or the package indicates that the product has been placed on the
market after 13 August 2005 and must be disposed of as separated waste.
Should the product be disposed of incorrectly, sanctions may be applied as stipulated in applicable
local regulations regarding waste disposal.

User manual IPM500 EN rel1.0.doc iPro Series 5/48
2. GENERALITIES
iPro Master\Slave is a programmable controller for application on Air Conditioning plants.
It is possible to manage up to 10 units made with the IC208CX controller through the communication to
synchronize the regulation and treat them as a single unit working on a plant.
The main feature for this regulation are:
Possibility to use the units’ resources for the main regulation or dedicated resources
Synchronized defrost management
Back up unit management
Limiter and Overboost functionalities
Dedicated HMI showing the overall plant status
The system is composed by:
IPM500D
Master controller: it performs the system control through temperature reading, slave
operation status, etc., and calculates how many slaves have to be switched on and the number of
compressors to activate.
It is possible to configure in Master controller the plant water pumps and plant probes; in this case
the I/O expansion board is required.
Through the Visograph user interface it is possible to read the status of the system.
IPX106D or IPX206D or IPX306D
I/O expansion: needs to be used if the system requires a plant probe and/or plant water pump
IC206CX EVO / IC208CX EVO / IC205D EVO / IC207D EVO
Slave controller: the slaves managed by the Master are the Ichill 200 EVO series (IC206CX EVO /
IC208CX EVO / IC205D EVO / IC207D EVO); each slave manages the resources of the local unit. In
case of lack of communication with the Master (for more than 60 seconds), each slave regulates in
stand alone mode in accord with its parameters programming.
Note:
The Ichill 200 EVO can be configured in many ways, but to use it as slave some
configurations are not possible. Following not allowed configurations and functions:
oMotorcondensing unit
oInverter compressor
oScrew compressor
oCompressors with different capacity
oDomestic hot water
oFree cooling
oSolar panels
oCompressor rack function

User manual IPM500 EN rel1.0.doc iPro Series 6/48
3. AVAILABLE APPLICATION CONFIGURATIONS
The controller can manage two main configurations:
- Plant without dedicated resources (No I\O expansion board present)
- Plant with dedicated resources (I\O expansion board present)
3.1 PLANT WITHOUT DEDICATED RESOURCES
The system uses the resources connected directly to the Ichill.
- The main regulation is made on the average value read by the single unit regulation probes
- It is possible to assign different weights to different units
- The water pumps are managed directly by the ichills
- The defrost synchronization is managed by the master
- No expansion board required and no I\O presnt on the master

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3.2 PLANT WITH DEDICATED RESOURCES
The system may use the resources on the expansion module connected directly to the measter.
- The main regulation is made on the value read by the expansion board probes
- It is possible to manage up to three main water pumps
- It is possible to manage flowswitches and pressureswitches
- Even if the regulation probe is in alarm, the master will continue the regulation according to the
average of the single unit regulation probes

User manual IPM500 EN rel1.0.doc iPro Series 8/48
4. MAIN FUNCTIONS
Master actions
Main Master actions:
- Regulation management
The master communicates to each single slave (from 2 to up to 10 slaves):
oOperation mode: cooling or heating
oHow many power steps must be turned on
- Defrost management
The master acquiring defrost request coming from each slave, manages the queue of the slave that
must defrost, in order to allow only one unit in defrost at every time
- Alarm and notification management
The master, reading the status of each slave, manages all the units to guarantee the right operation
of the system. If a unit is on alarm, then not available for the regulation, the Master verify if there are
units in st-by and activate one of them to compensate
- Special functions
The Master can actuate some special functions, if enabled by setting dedicated parameters, like
power limiter and overboost (see description in paragraphs below).
The Master can manage, if enabled for this, plant water pumps and plant probes
Slave configuration / actions
Slave actions:
- When the Master enables a slave, it turns on the number of compressors that the Master requires
and manages all the resources that are configured in the unit (condenser fan, water pump, etc.)
- When the slave detects the conditions to defrost, it waits the Master authorization before starting
it. In case of forceddefrost, the slave actuates immediately the defrostwithout Master
authorization.
Slave configuration:
- The regulation type, proportional or neutral band, is defined in Master configuration; the Master
overwrites the correspondant parameter of each Ichill
- The regulation mode (only chiller, only heat pump or chiller + heat pump) is defined in Master
configuration; the Master overwrites the correspondant parameter of each Ichill
- The working mode (summer / winter) will be defined by the masterand distributes to each Ichill
- The regulation probe is defined in Master configuration; the Master overwrites the correspondant
parameter of each Ichill
- The set points and the bands for both chiller and heatpump will be overwrited by the master
- The number ofactive power steps will be decided by the master; the iChill, according to selected
internal configuration, hestablish which compressor has to be activated
- The iChill communicates to the Master:
othe total number of power steps, total number of active steps, total number of not
available steps (compressor in maintenance, compressor on alarm, etc.)
ovalue of the NTC evaporator inlet probe, value of the NTC evaporator outlet probe, value of
the NTC condenser inlet probe,value of the NTC condenser outlet probe (only configured
probes)
owater pump status
oaverage working hours and start-up of its resources

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Slave ON/OFF:
- During the regulation the on/offstate will be managed from the master
- Local OFF state, generated by digital input activation or by keyboard, has priority over Master
control
ON command by remote digital input or by keyboard allows the unit to turn on in the operation mode
(chiller or heat pump) set by the master
When the iChill is in slave mode, the alarms will be managed as follow:
- In case of alarm that has not influence on the regulation, the iChill notifies the alarm to the Master
- In case of compressor\circuit alarm or alarm that stops the unit, the iChill notifies the alarm to the
Master that calculates the new number of power steps active and available
The maximum number of slaves managed by the IPM500D is 10.

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5. USER INTERFACE VISOGRAPH 1.0
Using the VISOGRAPH LCD graphic keyboard, it is possible to monitor and modify the status of the master
unit and the system status.
5.1 VISOGRAPH SCREENS
5.1.1 MAIN SCREEN
Main information:
Status: here is shown the working mode and the state of the system (Cooling, Heating or Off).
Regulation Probe: here is shown the regulation value. According to the configuration this may be a
physical probe connected to the expansion boad or the average value of the slave units regulation
probes.
Set Point: When the unit is ON, here is shown the actual regulation set point according to the Status
(Cooling set or Heating set).
Date & Time: here is shown the current date and time programmed in the master unit.
Number of Units: this number raprresent the number of slave units connected to the system.
Active\Available power steps: These numbers show the number of active and available power steps
in the system
Active\Available water pumps: These numbers are shown only when the expansion board is
available and has configured the system water pumps. Show the number of active and available
water pumps.
Main actions:
On\Off: this key is used to turn on and off the system when it is configured only for cooling or only for
heating. In case of Cool & Heat configuration is used to turn on the system in cooling mode.
Set Point page: this button open the screen for the configuration of the set points.
Hidden On\Off: The third button is used to turn on the heating mode when the system is configuraed
for both cooling and heating.
Unit page: this button open the Units screen to show the overall slaves status.
Alarm Page: this button open the alarms and notify page. When a notify is active a bell will be shown
on the top roght of the screen. When an alarm is active a danger symbol will appear on the right side
square of the screen.
Service Page: thus button open up the service menu where is possible to define parameters and
activate special functions.

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5.1.2 SET POINT SCREEN – FROM MAIN SCREEN
Main information:
System Status: here is shown the state of the system (Cooling, Heating or Off).
Cooling Set Point: here is shown the actual cooling set point if the system is configured for Cooling
mode or for Cool & Heat mode. The setpoint can be changed using the screen keys.
Heating Set Point: here is shown the actual cooling set point if the system is configured for Heating
mode or for Cool & Heat mode. The setpoint can be changed using the screen keys.
Main actions:
Esc key: this key is used to go back on the previous page.
Up & Down keys: these keys are used to select the setpoint that need to be changed. They are also
used the change the value after the enter key is pressed to activate the change mode.
Enter: this key is used to enter the change mode and also to confirm the newvalue for the selected
set point.
Alarm Page: this button open the alarms and notify page. When a notify is active a bell will be shown
on the top roght of the screen
5.1.3 UNITS SCREEN – FROM MAIN SCREEN
Main information:
Units Status: here is shown the the state of all the units connected to the system. For every unit are
shown the following information:
oIndex: rapresent the unit index from 1 to 10
oUnit state: rapresent the general state of the unit (On, Off, Offline)
oLocal resources: here are shown the active and available resources for the single unit. When
a unit is off, in alarm or in defrost the resources will be always considered 0 / 0
oDefrost state: this icon show which unit is perform a defrost
Main actions:
Esc key: this key is used to go back on the previous page.

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5.1.4 ALARM & NOTIFY SCREEN – FROM ANY SCREEN
Main information:
Current Alarms: here is shown the total number of active\resettable alarms.
Active Alarm List: here are shown the acronyms described in the alarms section of the active and
resettable alarms.If more then 4 alarms are present at the same time the number of alarm pages will
be increased automatically.
Reset state: here is shown if an active alarm is manually resettable
Main actions:
Previous page: in case of more then 4 alarms active, more alarm pages will be generated
automatically. This key is used to go to the previous page.
Esc Key: this key is used to go back to the previous page.
Notify key: this key is used to enter the Notifies page of the alarm section.
Reset key: this key is used to reset al the resettable alarms of the system.
Next page: in case of more then 4 alarms active, more alarm pages will be generated automatically.
This key is used to go to the next page.
Main information:
Current Notifications: here is shown the total number of active notifications.
Active Notification List: here are shown the acronyms described in the alarms section of the active
notifications.If more then 4 notifications are present at the same time the number of notification
pages will be increased automatically.
Main actions:
Previous page: in case of more then 4 notifications active, more notification pages will be generated
automatically. This key is used to go to the previous page.
Esc Key: this key is used to go back to the previous page.
Alarm key: this key is used to enter the Alarms page of the alarm section.
Next page: in case of more then 4 notiications active, more notification pages will be generated
automatically. This key is used to go to the next page.

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5.1.5 SERVICE SCREEN – FROM MAIN SCREEN
Main information:
Service menu icons: selecting these icons is possible to enter the various menus of the master
showing information and available settings.
Main actions:
Esc Key: this key is used to go back to the previous page.
Up & Down keys: these keys are used to scroll through the menu icons in order to select the wished
functionality.
Select key: this key is used to enter in the select icon menu.
Alarm Key: this button open the alarms and notify page.
Info Key: this button is used to shown the information screen related to the master.
5.1.6 SYSTEM STATUS SCREEN – FROM SERVICE SCREEN
This screen is accessible selecting the icon in the service menu.
Main information:
Service menu icons: selecting these entries it is possible to enter the various menus for the system
showing information and available settings.
Main actions:
Esc Key: this key is used to go back to the previous page.
Up & Down keys: these keys are used to scroll through the menu icons in order to select the wished
functionality.
Select key: this key is used to enter in the select menu entry.
Alarm Key: this button open the alarms and notify page.

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5.1.7 UNIT STATUS SCREEN – FROM SYSTEM STATUS SCREEN
This screen is accessible selecting the entry “Unit status” in the service menu.
Main information:
Unit regulation probe: here is shown the regulation probe related to the selected unit.
Unit status: identify the state of the selected unit: ON, OFF, ONLINE and OFFLINE
Steps and power status: here is shown the number of used/total power steps available on the unit.
Other then this is shown the percentage of the delivered power for the single unit.
Alarm notify: if there is an alarm or notify active an alarm icon will be shown.
Backup unit notify: this part is visible if the unit is actually the backup unit
Unit weigth: here is shown the configured weight for the single unit.
Working hours: here is shown an average value of the working hours for the power steps of the unit.
Starts number: here is shown an average value of the number of starts for the power steps of the
unit.
Main actions:
Previous key: this key is used to go to the previous configured unit page if available.
Esc key: this key is used to go back to the system status screen.
Reset key: this key is used to reset the working hours and number of starts of the single unit.
Alarm key: this button open the alarms and notify page.
Next key: this key is used to go to the next configured unit page if available.
5.1.8 UNIT PROBE STATUS SCREEN – FROM SYSTEM STATUS SCREEN
This screen is accessible selecting the entry “Unit probe status” in the service menu.

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Main information:
Evaporator inlet probes: selecting this entry is possible to have the overall view of the single unit
probes confugred as evaporator inlet.
Evaporator outlet probes: selecting this entry is possible to have the overall view of the single unit
probes confugred as evaporator outlet.
Condenser inlet probes: selecting this entry is possible to have the overall view of the single unit
probes confugred as condenser inlet.
Condenser outlet probes: selecting this entry is possible to have the overall view of the single unit
probes confugred as condenser outlet.
Main actions:
Esc Key: this key is used to go back to the previous page.
Up & Down keys: these keys are used to scroll through the menu icons in order to select the wished
functionality.
Select key: this key is used to enter in the select menu entry.
Alarm Key: this button open the alarms and notify page.
Selecting any entry of the menu will bring up the following pages that shows the oversal information of a
specific type of probe:
Main actions:
Esc Key: this key is used to go back to the previous page.
Alarm Key: this button open the alarms and notify page.

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5.1.9 SYSTEM PROBE STATUS SCREEN – FROM SYSTEM STATUS SCREEN
This screen is accessible selecting the entry “System probe status” in the service menu.
Main information:
Evaporator inlet probe: here is shown the value of the expansion board evaporator inlet probe.
Evaporator outlet probe: here is shown the value of the expansion board evaporator outlet probe.
Condenser inlet probe: here is shown the value of the expansion board condenser inlet probe.
Condenser outlet probe: here is shown the value of the expansion board condenser outlet probe.
Tank probe: here is shown the value of the expansion tank probe.
Main actions:
Esc Key: this key is used to go back to the previous page.
Alarm Key: this button open the alarms and notify page.
5.1.10 SYSTEM PUMP STATUS SCREEN – FROM SYSTEM STATUS SCREEN
This screen is accessible selecting the entry “System pump status” in the service menu.

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Main information:
System pumps: from here is possible to check the status of every pump configured on the expansion
module.
Unit pumps: from here is possible to check the status of every main pump configured on the units.
Main actions:
Previous key: this key is used to switch between the two page views.
Esc key: this key is used to go back to the previous page.
Alarm key: this button open the alarms and notify page.
Next key: this key is used to switch between the two page views.
5.1.11 FUNCTIONS SCREEN – FROM SERVICE SCREEN
This screen is accessible selecting the icon in the service menu.
Main information:
Unit defrost status: here is shown the single state of defrost for each unit, if the defrost functionality is
available.
Main actions:
Previous key: this key is used to switch between the functionality pages view.
Esc key: this key is used to go back to the previous page.
Alarm key: this button open the alarms and notify page.
Next key: this key is used to switch between the functionality pages view.

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Main information:
Overboost status: here is shown the state of the Overboost functionality (ON or OFF).
Overboost manual request: here is possible to see if the current Overboost was enabled by key.
Overboost relevant data: on the left side are shown the percentage of extra power that will be
delivered, unit that actually is configured as back up unit and the function priority (Overboost or
Limiter). On the right side the number of the actual power steps used by the functionality.
Main actions:
Previous key: this key is used to switch between the functionality pages view.
Esc key: this key is used to go back to the previous page.
Enb/Dis key: enable manually the Overboost functionality
Alarm key: this button open the alarms and notify page.
Next key: this key is used to switch between the functionality pages view.
Main information:
Limiter status: here is shown the state of the Limiter functionality (ON or OFF).
Limiter manual request: here is possible to see if the current Limiter was enabled by key.
Limiter relevant data: on the left side are shown the percentage of limited power that will be delivered
and the function priority (Overboost or Limiter). On the right side the number of the actual power
steps used by the functionality.
Main actions:
Previous key: this key is used to switch between the functionality pages view.
Esc key: this key is used to go back to the previous page.
Enb/Dis key: enable manually the Limiter functionality
Alarm key: this button open the alarms and notify page.
Next key: this key is used to switch between the functionality pages view.

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5.1.12 WORKING HOURS SCREEN – FROM SERVICE SCREEN
This screen is accessible selecting the icon in the service menu.
Main information:
Working hours counters: here are shown the single working hour counters for every single unit.
Starts counters: here are shown the single start counters for every single unit.
Main actions:
Previous key: this key is used to switch between the functionality pages view.
Esc key: this key is used to go back to the previous page.
Reset key: with this key is possible to erase all the stored data related to the working hours and
number of starts in the configured units. Clicking this button will popup a further confirmation request
before performing the action.
Alarm key: this button open the alarms and notify page.
Next key: this key is used to switch between the functionality pages view.

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5.1.13 TIME BANDS SCREEN – FROM SERVICE SCREEN
This screen is accessible selecting the icon in the service menu.
Main information:
Time bands settings: in these three pages are shown all the settings of the time bands. The
pourpose of these pages is only to show the settings and not to change them.
Main actions:
Previous key: this key is used to switch between the time bands pages view.
Esc key: this key is used to go back to the previous page.
Set time key: with this key is possible to enter the real time clock setting page in order to update the
time settings.
Alarm key: this button open the alarms and notify page.
Next key: this key is used to switch between the time bands pages view.