Alarm description
DECS 2.0
1
Danfoss Heating Segment VI.HX.K3.02 DHS-SRMT/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 Selecting Object Number ................................................................................................................................................................................................ 3
2.8 Sorting the list of alarms .................................................................................................................................................................................................. 3
2.9 Alarm on sensors ................................................................................................................................................................................................................4
2.10 ECL System Alarms ..........................................................................................................................................................................................................6
2.11 OPR10 System Alarms ....................................................................................................................................................................................................7
2.12 Communication alarms .................................................................................................................................................................................................8
2.13 M-bus meter alarms ........................................................................................................................................................................................................ 8
2.14 ECL Application Alarms .............................................................................................................................................................................................. 11
1.0 Contents
Alarm description DECS 2.0
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DHS-SRMT/DK VI.HX.K3.02 Danfoss Heating Segment
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, object number, event text, status and accept
status. 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 specic 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-
dened 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 dened as ‘1 – 601’ and lowest prior-
ity as ‘5 – 201’.
The predened 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
fullled, i.e. a sensor is disconnected.
If or when the trigger condition for that alarm is no longer fullled
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
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Danfoss Heating Segment VI.HX.K3.02 DHS-SRMT/DK
2.4 Specifying Event Text
Each alarm supported by DECS 2.0 has a predened 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 specic 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 predened 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 specic source will be shown in the list of alarms. If ‘All’ is
selected 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.
Figur 5 shows how to select a specic Source in the lter conditions.
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 specic Place will be shown in the list of
alarms. Figur 6 shows how to select a specic Place in the lter conditions.
2.7 Selecting Object Number
You can set a lter for the object number to nd only the alarms
from that one.
If you want to see the controller overview of a controller, which
have an active or inactive alarm, then you have to click on the
object number of that controller. This is a hyperlink and the system
will jump to the controller overview display of the controller, on
which the alarm appeared.
Figur 7 shows how to select object number.
2.8 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 8 shows how to sort the list of alarms.
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
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DHS-SRMT/DK VI.HX.K3.02 Danfoss Heating Segment
2.9 Alarm on sensors
The ECL controller can be congured 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 congure 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
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Danfoss Heating Segment VI.HX.K3.02 DHS-SRMT/DK
Event Text Priority Source Trigger condition
Alarm sensor 1 3 ECL Alarm status goes On if sensor is short circuited or disconnected. The sensor input is monitored by
the controller.
Alarm sensor 2 3 ECL Alarm status goes On if sensor is short circuited or disconnected. The sensor input is monitored by
the controller.
Alarm sensor 3 3 ECL Alarm status goes On if sensor is short circuited or disconnected. The sensor input is monitored by
the controller.
Alarm sensor 4 3 ECL Alarm status goes On if sensor is short circuited or disconnected. The sensor input is monitored by
the controller.
Alarm sensor 5 3 ECL Alarm status goes On if sensor is short circuited or disconnected. The sensor input is monitored by
the controller.
Alarm sensor 6 3 ECL Alarm status goes On if sensor is short circuited or disconnected. The sensor input is monitored by
the controller.
Alarm sensor 7 3 ECL Alarm status goes On if sensor is short circuited or disconnected. The sensor input is monitored by
the controller.
Alarm sensor 8 3 ECL Alarm status goes On if sensor is short circuited or disconnected. The sensor input is monitored by
the controller.
Alarm sensor 9 3 ECL Alarm status goes On if sensor is short circuited or disconnected. The sensor input is monitored by
the controller.
Alarm sensor 10 3 ECL Alarm status goes On if sensor is short circuited or disconnected. The sensor input is monitored by
the controller.
Alarm sensor 11 3 ECL Alarm status goes On if sensor is short circuited or disconnected. The sensor input is monitored by
the controller.
Alarm sensor 12 3 ECL Alarm status goes On if sensor is short circuited or disconnected. The sensor input is monitored by
the controller.
Alarm ECA32 sensor
13
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 ECA32 sensor
14
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 ECA32 sensor
15
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 ECA32 sensor
16
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.
Sensorerror Sensor 4
HK2VL
3 OPR20 Alarm status goes On if sensor is disconnected. The sensor input is monitored by the controller.
Sensorerror Sensor 5
HK3VL
3 OPR20 Alarm status goes On if sensor is disconnected. The sensor input is monitored by the controller.
Sensorerror Sensor 6
Boiler 1, HK4VL
3 OPR20 Alarm status goes On if sensor is disconnected. The sensor input is monitored by the controller.
Sensorerror Sensor 7
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
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DHS-SRMT/DK VI.HX.K3.02 Danfoss Heating Segment
2.10 ECL System Alarms
The ECL controller can be congured 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 congure 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
Alarm PNU1040 2 ECL Alarm status goes On if the conditions for the alarm specied 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.
Alarm PNU1041 2 ECL Alarm status goes On if the conditions for the alarm specied 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.
Alarm PNU1042 2 ECL Alarm status goes On if the conditions for the alarm specied 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.
Alarm PNU1043 2 ECL Alarm status goes On if the conditions for the alarm specied 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.
Alarm PNU1044 2 ECL Alarm status goes On if the conditions for the alarm specied 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 fullled, i.e. a
ow temperature exceeds the limits specied 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 fullled then the ECL
controller automatically cancels the alarm, meaning the Status of
the alarm is set back to O.
Alarm description DECS 2.0
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Danfoss Heating Segment VI.HX.K3.02 DHS-SRMT/DK
Some examples of system alarms are shown below:
Application key Bit PNU Description
P330 1
2
3
4
5
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
2
3
4
5
1040
1041
1042
1043
1044
(Not supported)
Flow temperature monitor, all circuits
(Not supported)
(Not supported)
(Not supported)
A247, A260, A347,
A367
1
2
3
4
5
1040
1041
1042
1043
1044
(Not supported)
Flow temperature monitor, circuit 1
Flow temperature monitor, circuit 2
(Not supported)
(Not supported)
A266 1
2
3
4
5
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
2
3
4
5
1040
1041
1042
1043
1044
(Not supported)
Flow temperature monitor, circuit 1
Flow temperature monitor, circuit 2
Flow temperature monitor, circuit 3
(Not supported)
2.11 OPR10 System Alarms
The OPR10 controller can be congured to monitor one or more
system alarms. It is described in the installation guide for the con-
troller how to congure it.
Event Text Priority Source Trigger condition
OPR0010 system
alarm (1)
2 OPR10 Alarm status goes On if the conditions for the alarm specied 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 specied 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 fullled the
Status of that corresponding alarm is set to On. If/when the
conditions for that alarm are no longer fullled then the controller
automatically cancels the alarm, meaning the Status of the alarm
is set back to O.
Alarm description DECS 2.0
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Danfoss Heating Segment VI.HX.K3.02 DHS-SRMT/DK
2.12 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
Reachability of
controller
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.
Date/time controller
(At least 15 minutes
dierent from server
time)
2 OPR20 Alarm status goes On if the time dierence between the controller and DECS 2.0 server time is more
than 15 minutes. The time dierence 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.
2.13 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 specic 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
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Danfoss Heating Segment VI.HX.K3.02 DHS-SRMT/DK
Event Text Priority Source Trigger condition
ERROR Heatmeter 1 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
meter alarm is monitored by DECS 2.0.
ERROR Heatmeter 2 1 ECL, OPR10,
OPR20
Alarm status goes On if heat meter 2 reports a non-zero error code to DECS 2.0. The m-bus
meter alarm is monitored by DECS 2.0.
ERROR Heatmeter 3 1 ECL, OPR10,
OPR20
Alarm status goes On if heat meter 3 reports a non-zero error code to DECS 2.0. The m-bus
meter alarm is monitored by DECS 2.0.
ERROR Heatmeter 4 1 ECL, OPR10,
OPR20
Alarm status goes On if heat meter 4 reports a non-zero error code to DECS 2.0. The m-bus
meter alarm is monitored by DECS 2.0.
ERROR Heatmeter 5 1 ECL, OPR10,
OPR20
Alarm status goes On if heat meter 5 reports a non-zero error code to DECS 2.0. The m-bus
meter alarm is monitored by DECS 2.0.
ERROR Heatmeter 6 1 OPR10
OPR20
Alarm status goes On if heat meter 6 reports a non-zero error code to DECS 2.0. The m-bus
meter alarm is monitored by DECS 2.0.
ERROR Heatmeter 7 1 OPR10
OPR20
Alarm status goes On if heat meter 7 reports a non-zero error code to DECS 2.0. The m-bus
meter alarm is monitored by DECS 2.0.
ERROR Heatmeter 8 1 OPR10
OPR20
Alarm status goes On if heat meter 8 reports a non-zero error code to DECS 2.0. The m-bus
meter alarm is monitored by DECS 2.0.
ERROR Heatmeter 9 1 OPR10
OPR20
Alarm status goes On if heat meter 9 reports a non-zero error code to DECS 2.0. The m-bus
meter alarm is monitored by DECS 2.0.
ERROR Heatmeter 10 1 OPR10
OPR20
Alarm status goes On if heat meter 10 reports a non-zero error code to DECS 2.0. The m-bus
meter alarm is monitored by DECS 2.0.
ERROR Heatquantity 1 2 ECL, OPR10,
OPR20
Alarm status goes On if the consumption value read from energy meter 1 is lower than previ-
ous readout. The consumption alarm is monitored by DECS 2.0.
ERROR Heatquantity 2 2 ECL, OPR10,
OPR20
Alarm status goes On if the consumption value read from energy meter 2 is lower than previ-
ous readout. The consumption alarm is monitored by DECS 2.0.
ERROR Heatquantity 3 2 ECL, OPR10,
OPR20
Alarm status goes On if the consumption value read from energy meter 3 is lower than previ-
ous readout. The consumption alarm is monitored by DECS 2.0.
ERROR Heatquantity 4 2 ECL, OPR10,
OPR20
Alarm status goes On if the consumption value read from energy meter 4 is lower than previ-
ous readout. The consumption alarm is monitored by DECS 2.0.
ERROR Heatquantity 5 2 ECL, OPR10,
OPR20
Alarm status goes On if the consumption value read from energy meter 5 is lower than previ-
ous readout. The consumption alarm is monitored by DECS 2.0.
ERROR Heatquantity 6 2 OPR10
OPR20
Alarm status goes On if the consumption value read from energy meter 6 is lower than previ-
ous readout. The consumption alarm is monitored by DECS 2.0.
ERROR Heatquantity 7 2 OPR10
OPR20
Alarm status goes On if the consumption value read from energy meter 7 is lower than previ-
ous readout. The consumption alarm is monitored by DECS 2.0.
ERROR Heatquantity 8 2 OPR10
OPR20
Alarm status goes On if the consumption value read from energy meter 8 is lower than previ-
ous readout. The consumption alarm is monitored by DECS 2.0.
ERROR Heatquantity 9 2 OPR10
OPR20
Alarm status goes On if the consumption value read from energy meter 9 is lower than previ-
ous readout. The consumption alarm is monitored by DECS 2.0.
ERROR Heatquantity 10 2 OPR10
OPR20
Alarm status goes On if the consumption value read from energy meter 10 is lower than
previous readout. The consumption alarm is monitored by DECS 2.0.
Alarm description DECS 2.0
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DHS-SRMT/DK VI.HX.K3.02 Danfoss Heating Segment
Error codes supported by Danfoss energy meters are shown in the
table below.
The gures 0-255 are the possible error codes that can be shown
in DECS. 2.0.
The codes in the grey row and the grey column are the possible
error codes that can be shown in the meter display.
C-1 E-8 C-1 +
E-8
E-4 C-1 +
E-4
E-8 +
E-4
C-1 +
E-8 +
E-4
E-1 C-1 +
E-1
E-8 +
E-1
C-1 +
E-8 +
E-1
E-4 +
E-1
C-1 +
E-4 +
E-1
E-8 +
E-4 +
E-1
C-1 +
E-8 +
E-4 +
E-1
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 E-7
32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 E-9
48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 E-7 +
E-9
64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 E-3
80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 E-7 +
E-3
96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 E-9 +
E-3
112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 E-7 +
E-9 +
E-3
128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 E-6
144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 E-7 +
E-6
160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 E-9 +
E-6
176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 E-7 +
E-9 +
E-6
192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 E-3 +
E-6
208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 E-7 +
E-3 +
E-6
224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 E-9 +
E-3 +
E-6
240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 E-7 +
E-9 +
E-3 +
E-6
How to read the table:
Example:
DECS 2.0 shows the error code 146 for a Danfoss heat meter.
Find the gure 146 in the table.
Follow the column vertically to the grey area and you will nd E-8.
Hereafter follow the row horizontally to the grey area and you will nd E-7 + E-6.
This means that the error codes E-6, E-7 and E-8 are active in the heat meter.
You can nd an explanation of the possible error codes in the table on the next page.
Alarm description DECS 2.0
1111
Danfoss Heating Segment VI.HX.K3.02 DHS-SRMT/DK
Explanation of error codes
Error code Description
E-1 Temperature measurement error
-) Temperature range outside [-19,9°C ... 199,9°C]
-) sensor short circuit
-) sensor break
E-3 Temperature sensors reversed in hot and cold lines
E-4 Hardware error in ultrasonic measurement
-) transducer or control defective
-) short circuit
E-5 Reading too frequently
E-6 Wrong direction of ow
E-7 No meaningful ultrasonic receive signal
-) air in the measuring path
E-8 No primary voltage (only if mains unit used)
-) supply via backup battery
E-9 Warning: Battery nearly exhausted
C-1 Basic parameter error in ash or RAM
2.14 ECL Application Alarms
DECS 2.0 supports application specic alarms for some application
keys, i.e. A333.
The conditions for such alarms to be triggered are specied in the
Administrator menu.
Event Text Priority Source Trigger condition
Alarm on Sensor 14
- Pump
2 ECL Alarm status goes On if the specied digital sensor input is High/Active. When the input is Low/
Inactive the Status automatically switches back to O. The alarm conditions are monitored by
DECS 2.0.
Flow temperature too
high
2 ECL Alarm status goes On if the ow temperature is higher than the specied limit. When the ow
temperature is below the limit the Status automatically switches back to O. The alarm conditions
are monitored by DECS 2.0.
Return temperature
too high
2 ECL Alarm status goes On if the return temperature is higher than the specied limit. When the ow
temperature is below the limit the Status automatically switches back to O. The alarm conditions
are monitored by DECS 2.0.
DECS 2.0 monitors the corresponding sensor values and detects
if the specied limits are exceeded. If the limit is exceeded then
the Status of that alarm goes On and switches back to O when
the value is no longer exceeding the limit.
Alarm description DECS 2.0
Produced by Danfoss A/S © 10/2015
*087H9249*
*VIHXK302*
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