Danfoss DECS 2.0 Operating instructions

Brand: Danfoss

Model: DECS 2.0

Type: Operating instructions

Alarm description

DECS 2.0

Danfoss District Energy VI.HX.K2.02 DEN-SMT/DK

1.0 Contents .................................................................................................................................................................................................................................1

2.0 Alarm menu ........................................................................................................................................................................................................................... 2

2.1 List of alarms ........................................................................................................................................................................................................................2

2.2 Selecting Priority ................................................................................................................................................................................................................2

2.3 Selecting Status ..................................................................................................................................................................................................................2

2.4 Specifying Event Text ........................................................................................................................................................................................................3

2.5 Selecting Source ................................................................................................................................................................................................................. 3

2.6 Selecting Place ....................................................................................................................................................................................................................3

2.7 Sorting the list of alarms .................................................................................................................................................................................................. 3

2.8 Alarm on sensors ................................................................................................................................................................................................................4

2.9 ECL System Alarms.............................................................................................................................................................................................................6

2.10 OPR10 System Alarms ....................................................................................................................................................................................................7

2.11 Communication alarms .................................................................................................................................................................................................8

2.12 M-bus meter alarms ........................................................................................................................................................................................................ 8

2.13 ECL Application Alarms .............................................................................................................................................................................................. 10

1.0 Contents

Alarm description DECS 2.0

DEN-SMT/DK VI.HX.K2.02 Danfoss District Energy

2.0 Alarm menu

2.1 List of alarms

By clicking on the Alarms menu a list of alarms will be shown.

The contents in the list of alarms depend on the selected ltering

criteria. These criteria are Priority, Status, Event text, Source and

Place. Each of these criteria is explained below.

It is possible to see the Priority, time stamp, customer name and

controller ID, Place, Event text, Status, Value as well as Accept

and User for each alarm in the list. Each of these information is

explained below.

The buttons on the lower right side of the window makes it pos-

sible to show History of alarms for a specic period of time or to

quickly Accept All alarms in the list. The list can also be exported to

a CSV le.

Figur 1 shows the Alarms window accessible via the Alarms menu.

2.2 Selecting Priority

The alarms which can be generated by DECS 2.0 each have a pre-

dened priority. In this way the alarms can i.e. be ltered to have

only the highest priority alarms (1 – 601) shown in the list.

By selecting a Priority in the dropdown list then only alarms with

that priority or higher will be shown in the list.

Alarms of highest priority are dened as ‘1 – 601’ and lowest prior-

ity as ‘5 – 201’.

The predened priority of each alarm is shown in the lists of sup-

ported alarms.

Figur 2 shows how to select Priority in the lter conditions.

2.3 Selecting Status

When an alarm is triggered then the status of that alarm will be set

to On. This happens when the trigger condition for that alarm is

fullled, i.e. a sensor is disconnected.

If or when the trigger condition for that alarm is no longer fullled

then the status of that alarm will be set to O, i.e. if the sensor is

reconnected.

The trigger conditions are described in the lists of supported

alarms.

In the Status dropdown list it is possible to select only to show

alarms with a particular Status in the list. If ‘None’ is selected then

no Status lter is applied.

The other options in the dropdown list provide lter criteria which

depends on both the current status of the alarm (On/O) and

whether or not the alarm has been accepted by a user (Accepted/

Unaccepted). For example, select ‘On Unaccepted’ to show only

the alarms which are currently On and which have not yet been

accepted by a user. Alternatively, select the ‘On O Unaccepted’

option to show all unaccepted alarms regardless if Status is On or

O.

Figur 3 shows how to select Status in the lter conditions.

Alarm description DECS 2.0

Danfoss District Energy VI.HX.K2.02 DEN-SMT/DK

2.4 Specifying Event Text

Each alarm supported by DECS 2.0 has a predened Event Text

which is shown in the ‘Event Text’ column in the list of alarms.

By specifying a lter criteria to be alarms with a specic Event Text

then only alarms which have this Event Text will be shown in the

list.

It is possible to specify all of the Event Text or just the initial part

of the Event Text, i.e. by specifying “Reachability”, then all alarms

starting with that Event Text will be shown. The lter is not case-

sensitive.

The predened Event Text of each alarm is shown in the lists of

supported alarms.

Figur 4 shows how to specify an Event Text in the lter conditions.

2.5 Selecting Source

DECS 2.0 supports ECL Comfort 310, OPR20 and OPR10 controllers

as source of alarms.

By selecting a source as a lter criteria then only the alarms from

that specic source will be shown in the list of alarms. If ‘All’ is se-

lected then alarms from any of the sources will be shown in the list.

The alarms supported by each source are shown in the lists of sup-

ported alarms.

2.6 Selecting Place

One or more Places can be created in the General Settings avail-

able in the Administrator menu.

Each of these places is selectable in the Place dropdown list. Only

the alarms from that specic Place will be shown in the list of

alarms.

2.7 Sorting the list of alarms

The list of alarms can be sorted ascending or descending based on

any of the columns shown in the list of alarms.

Click on the title of the column to be used for sorting the list. By

clicking the same column again it will be sorted in reversed order.

The column used for sorting is indicated by an arrow-down (de-

scending) or arrow-up (ascending).

Figur 7 shows how to sort the list of alarms.

Figur 6 shows how to select a specic Place in the lter conditions.

Figur 5 shows how to select a specic Source in the lter conditions.

Place the mouse pointer on a eld in the list of alarms to see

the complete contents of that eld.

Alarm description DECS 2.0

DEN-SMT/DK VI.HX.K2.02 Danfoss District Energy

2.8 Alarm on sensors

The ECL controller can be congured to monitor one or more sen-

sor inputs and then trigger an alarm if a sensor is short circuited or

disconnected.

It is described in the installation guide for the application key

installed in the ECL controller how to congure it.

To make the ECL controller monitor an input then it must be acti-

vated via the Raw Input Overview menu in the controller.

The ECL controller will then show a magnifying glass next to the

sensor input. Only sensor inputs used by the application itself can

be monitored for alarms.

The sensor input has a measuring range from -60 ... 150 ° C. If the

input is exceeding these limits then the alarm is triggered.

Alarm description DECS 2.0

Danfoss District Energy VI.HX.K2.02 DEN-SMT/DK

Event Text Priority Source Trigger condition

Alarm on sensor 1 3 ECL Alarm status goes On if sensor is short circuited or disconnected. The sensor input is monitored by

the controller.

Alarm on sensor 2 3 ECL Alarm status goes On if sensor is short circuited or disconnected. The sensor input is monitored by

the controller.

Alarm on sensor 3 3 ECL Alarm status goes On if sensor is short circuited or disconnected. The sensor input is monitored by

the controller.

Alarm on sensor 4 3 ECL Alarm status goes On if sensor is short circuited or disconnected. The sensor input is monitored by

the controller.

Alarm on sensor 5 3 ECL Alarm status goes On if sensor is short circuited or disconnected. The sensor input is monitored by

the controller.

Alarm on sensor 6 3 ECL Alarm status goes On if sensor is short circuited or disconnected. The sensor input is monitored by

the controller.

Alarm on sensor 7 3 ECL Alarm status goes On if sensor is short circuited or disconnected. The sensor input is monitored by

the controller.

Alarm on sensor 8 3 ECL Alarm status goes On if sensor is short circuited or disconnected. The sensor input is monitored by

the controller.

Alarm on sensor 9 3 ECL Alarm status goes On if sensor is short circuited or disconnected. The sensor input is monitored by

the controller.

Alarm on sensor 10 3 ECL Alarm status goes On if sensor is short circuited or disconnected. The sensor input is monitored by

the controller.

Alarm on sensor 11 3 ECL Alarm status goes On if sensor is short circuited or disconnected. The sensor input is monitored by

the controller.

Alarm on sensor 12 3 ECL Alarm status goes On if sensor is short circuited or disconnected. The sensor input is monitored by

the controller.

Alarm on sensor 13

(ECA 32)

4 ECL Alarm status goes On if sensor is short circuited or disconnected. The sensor input is monitored by

the controller. The controller needs to be equipped with an ECA 32 input/output module.

Alarm on sensor 14

(ECA 32)

4 ECL Alarm status goes On if sensor is short circuited or disconnected. The sensor input is monitored by

the controller. The controller needs to be equipped with an ECA 32 input/output module.

Alarm on sensor 15

(ECA 32)

4 ECL Alarm status goes On if sensor is short circuited or disconnected. The sensor input is monitored by

the controller. The controller needs to be equipped with an ECA 32 input/output module.

Alarm on sensor 16

(ECA 32)

4 ECL Alarm status goes On if sensor is short circuited or disconnected. The sensor input is monitored by

the controller. The controller needs to be equipped with an ECA 32 input/output module.

Alarm room unit A

Sensor 1

5 ECL Alarm status goes On if sensor is short circuited or disconnected. The sensor input is monitored by

the controller. The controller needs to be connected to an ECA 30 Remote Control Unit.

Alarm room unit B

Sensor 1

5 ECL Alarm status goes On if sensor is short circuited or disconnected. The sensor input is monitored by

the controller. The controller needs to be connected to an ECA 30 Remote Control Unit.

Sensor 4 discon-

nected (HK2V1)

3 OPR20 Alarm status goes On if sensor is disconnected. The sensor input is monitored by the controller.

Sensor 5 discon-

nected (HK3V1)

3 OPR20 Alarm status goes On if sensor is disconnected. The sensor input is monitored by the controller.

Sensor 6 disconnect-

ed (Boiler 1, HK4V1)

3 OPR20 Alarm status goes On if sensor is disconnected. The sensor input is monitored by the controller.

Sensor 7 discon-

nected (Boiler 2)

3 OPR20 Alarm status goes On if sensor is disconnected. The sensor input is monitored by the controller.

Alarm description DECS 2.0

DEN-SMT/DK VI.HX.K2.02 Danfoss District Energy

2.9 ECL System Alarms

The ECL controller can be congured to monitor one or more

system alarms. It is described in the installation guide for the ap-

plication key installed in the ECL controller how to congure it, i.e.

the Temperature Monitor.

It depends on the application key installed in the ECL controller

which types of system alarms are supported. It can be seen in

the installation guide for the application key and/or in the Alarm

Overview menu in the ECL controller.

DECS 2.0 reads the status of the rst 5 types of system alarms in

the ECL controller (PNU 1040-1044).

Event Text Priority Source Trigger condition

ECL system Alarm

(PNU1040)

2 ECL Alarm status goes On if the conditions for the alarm specied in the controller are exceeded. When

the conditions are no longer exceeded the Status automatically switches back to O. The alarm

conditions are monitored by the controller.

ECL system Alarm

(PNU1041)

2 ECL Alarm status goes On if the conditions for the alarm specied in the controller are exceeded. When

the conditions are no longer exceeded the Status automatically switches back to O. The alarm

conditions are monitored by the controller.

ECL system Alarm

(PNU1042)

2 ECL Alarm status goes On if the conditions for the alarm specied in the controller are exceeded. When

the conditions are no longer exceeded the Status automatically switches back to O. The alarm

conditions are monitored by the controller.

ECL system Alarm

(PNU1043)

2 ECL Alarm status goes On if the conditions for the alarm specied in the controller are exceeded. When

the conditions are no longer exceeded the Status automatically switches back to O. The alarm

conditions are monitored by the controller.

ECL system Alarm

(PNU1044)

2 ECL Alarm status goes On if the conditions for the alarm specied in the controller are exceeded. When

the conditions are no longer exceeded the Status automatically switches back to O. The alarm

conditions are monitored by the controller.

In case a P330 application key is installed then the Flow Tem-

perature Monitor feature in the ECL controller monitors the ow

temperature of the master circuit (PNU 1040) and circuit 1-4 (PNU

1041-1044). However, only the circuits supported by the sub ap-

plication (P330.1-15) are monitored.

If the conditions for triggering a system alarm are fullled, i.e. a

ow temperature exceeds the limits specied in the ECL control-

ler, the Status of that corresponding alarm is set to On. If/when

the conditions for that alarm are no longer fullled then the ECL

controller automatically cancels the alarm, meaning the Status of

the alarm is set back to O.

Alarm description DECS 2.0

Danfoss District Energy VI.HX.K2.02 DEN-SMT/DK

Some examples of system alarms are shown below:

Application key Bit PNU Description

P330 1

1040

1041

1042

1043

1044

Flow temperature monitor, master circuit

Flow temperature monitor, circuit 1

Flow temperature monitor, circuit 2

Flow temperature monitor, circuit 3

Flow temperature monitor, circuit 4

A237, A337 1

1040

1041

1042

1043

1044

(Not supported)

Flow temperature monitor, all circuits

(Not supported)

A247, A260, A347,

A367

1040

1041

1042

1043

1044

(Not supported)

Flow temperature monitor, circuit 1

Flow temperature monitor, circuit 2

(Not supported)

A266 1

1040

1041

1042

1043

1044

(Not supported)

Flow temperature monitor, circuit 1

Flow temperature monitor, circuit 2

Flow temperature max monitor, circuit 1

(Not supported)

A377 1

1040

1041

1042

1043

1044

(Not supported)

Flow temperature monitor, circuit 1

Flow temperature monitor, circuit 2

Flow temperature monitor, circuit 3

(Not supported)

2.10 OPR10 System Alarms

The OPR10 controller can be congured to monitor one or more

system alarms. It is described in the installation guide for the con-

troller how to congure it.

Event Text Priority Source Trigger condition

OPR0010 system

alarm (1)

2 OPR10 Alarm status goes On if the conditions for the alarm specied in the controller are exceeded. When

the conditions are no longer exceeded the Status automatically switches back to O. The alarm

conditions are monitored by the controller.

OPR0010 system

alarm (2)

2 OPR10 Alarm status goes On if the conditions for the alarm specied in the controller are exceeded. When

the conditions are no longer exceeded the Status automatically switches back to O. The alarm

conditions are monitored by the controller.

If the conditions for triggering a system alarm are fullled the

Status of that corresponding alarm is set to On. If/when the

conditions for that alarm are no longer fullled then the controller

automatically cancels the alarm, meaning the Status of the alarm

is set back to O.

Alarm description DECS 2.0

Danfoss District Energy VI.HX.K2.02 DEN-SMT/DK

2.11 Communication alarms

The communication between DECS 2.0 and the controllers is con-

stantly monitored by DECS 2.0.

If DECS 2.0 cannot reach the controller via the data communica-

tion interface, i.e. Modbus-TCP or Modbus-RS485, then it will try

again at next polling cycle. If the controller cannot be reached

after 5 consecutive polling cycles the Reachability status is set to

False and the Communication alarm is triggered.

Event Text Priority Source Trigger condition

Communication

alarm

1 ECL

OPR10

OPR20

Alarm status goes On if the controller cannot be reached via the data communication interface after

5 consecutive polling cycles. The reachability of the controller is monitored by DECS 2.0.

Alarm on time

dierence

2 OPR20 Alarm status goes On if the time dierence between the controller and DECS 2.0 server time is more

than 15 minutes. The time dierence is monitored by DECS 2.0.

In this situation DECS 2.0 will wait 3 hours until it tries to reach the

controller again. If the controller then is reachable again the Com-

munication alarm is set back to O.

The interval between each polling cycle depends on the amount

of controllers registered to DECS 2.0 as well as the usage of DECS

2.0, but is typically 15 minutes.

2.12 M-bus meter alarms

If an m-bus meter is connected to the controller then DECS 2.0 will

monitor if an error is reported by the meter or if the consumption

value read from the meter is corrupt.

The meters are monitored at each polling cycle. The interval

between each polling cycle depends on the amount of controllers

registered to DECS 2.0 as well as the usage of DECS 2.0, but is typi-

cally 15 minutes.

It depends on the meter which types of error it can report to DECS

2.0 and also in which format the error is reported.

It also depends on the meter what the conditions are for the error

to be triggered. These details must be found in the documenta-

tion for that specic type of meter.

The error from the meter is reported to DECS 2.0 as an integer

value. This value is then shown in the list of alarms. Please consult

the documentation for the meter to learn about the conversion

between the error shown in the display of the meter and the inte-

ger value reported to DECS 2.0. See examples of errors supported

by Danfoss energy meters on the next page.

Alarm description DECS 2.0

Danfoss District Energy VI.HX.K2.02 DEN-SMT/DK

Event Text Priority Source Trigger condition

Alarm heat meter 1 error 1 ECL, OPR10,

OPR20

Alarm status goes On if heat meter 1 reports a non-zero error code to DECS 2.0. The m-bus