Danfoss AK-SM 350 User guide
User Guide
Monitoring unit with alarm
function and data collection
AK-SM 350
ADAP-KOOL® Refrigeration control systems
Introduction
The AK-SM 350 is a combined data collection and monitoring unit
for use in refrigeration plant in small supermarkets.
It is used to record the temperature in the various refrigeration
applications, store this data and then present it as documentation
in compliance with regulatory requirements.
Along with recording temperatures, there are alarm limit settings
and the unit will emit an alarm if a threshold value is exceeded.
The alarm is presented on the display and it can be sent to an
external alarm destination such as a mobile phone or a service
company.
The unit is positioned centrally in the supermarket, and the userfriendly interface makes it easy to follow the dierent temperature
readings.
With just a few pushes of the buttons, graphs of the dierent
temperature sequences can be brought up, and in the event of an
alarm, the cause can be read from the display.
All store employees will be able to operate the monitoring unit
and authorised personnel will have access to important settings
with a password.
Setups and settings can be entered via the front panel, but if there
are a lot of names and settings, they can be entered using the AKST type software. This software must be loaded on to a PC.
If there is more than one AK-SM 350 that is to be programmed
with the same settings, the back-up and restore function in the
AK-ST software may prove useful.
Advantages
• Compact unit for registration of temperatures
• Collects temperature data to present to authorities
• System unit with
- Optimisation of suction pressure (P0 optimisation)
- Day/night override
- Alarm function
Contents
Overview .......................................................................... 3
Data .................................................................................. 6
AK-SM 350 ................................................................................................6
Installation ....................................................................... 8
Assembly ................................................................................................... 8
Connections .............................................................................................9
External communication ...................................................................12
Conguration ................................................................13
The functions' mode of operation ........................14
The display .............................................................................................14
The overview display ...................................................................14
Display screens for daily use .....................................................15
Main menu ......................................................................................15
Functions for daily use - Setups/adjustments ...........................16
Day / Night setup ..........................................................................16
Injection ON Signal ......................................................................17
Starting defrosts ............................................................................18
Adaptive defrost ............................................................................19
P0 optimization .............................................................................19
Adaptive Rail heat.........................................................................20
Conguration settings .......................................................................21
Basic setup ......................................................................................21
Setup of points ..............................................................................24
Alarm settings ................................................................................33
Alarm routes ...................................................................................34
Alarm destinations .......................................................................36
Print setup .......................................................................................40
IP conguration .............................................................................41
Relay conguration ......................................................................41
Setup for other networks via protocol interface ...............43
Alarm priorities ..............................................................................43
Daily use .........................................................................44
When there is an alarm ......................................................................44
When you want to print out a data collection ..........................45
When you want to see a graph of the collected temperatures
.............................................................................................................46
When you want to change the store's opening times ...........47
When you want to change the defrost times ............................48
Appendix - Template compiler ............................... 49
Menu survey ..................................................................53
2 Manual RS8EF602 © Danfoss 01-2016 AK-SM 350 Version 2.5x
Overview
Number of connections
The AK-SM 350 is a central monitoring unit that can monitor up to
65 readings. They can originate from:
- up to 16 direct connections from sensors or switch functions
- signals from separate refrigeration controllers, EKC and AK types,
via data communication and AKC via interface AK-PI 200.
- signals from gas detectors. These readings are also transferred
via data communication.
Alarms
The unit advises you of an alarm in several ways:
• With an audio signal
• By ashing the LED on the front
• By showing an alarm symbol on the display
• In addition to this, the unit can route alarms to external alarm
destinations. This alarm routing can be categorised into priorities
and times for dierent alarm destinations at dierent times of
the day.
Alarms from freestanding refrigeration controllers received via
data communication are forwarded to the monitoring unit. The
warnings are then generated as described above.
Data collection
All dened points can be recorded and saved with the set time
intervals.
The values can be viewed on the display and retrieved by connecting a printer or connecting a PC or modem.
Signals
The following types of signals can be received:
• Temperature readings
• Switch functions
• Pulse signal for output reading
• Voltage signal
• Current signal
• Signals from refrigeration controllers types EKC and AK.
• Signals for P0 optimization
• Day/night override.
Gas detector
One or more of the measuring points can be a gas detector. The
gas detector is connected to the data communication, after which
it will send the measured value to the monitoring unit. If the
threshold value set in the monitoring unit is exceeded an alarm is
generated.
For further information on the gas detector, please see document
RD7HA or USCO.EN.S00.A.
Printer
The connection of a printer means that the data collected can be
printed out. The printer must be an HP PCL-3 compatible printer.
The print-out may contain:
• The measuring points’ actual values
• Graphic readout of temperature sequences
• Alarm history
External connections
• Modem
A modem can be connected so that the unit can be in contact
with external alarm destinations or service companies.
The modem can be a standard telephone modem or a GSM
modem for mobile telephony.
• Ethernet
The link to external alarm destinations and service companies
can take place via a TCP/IP network.
• PC
A PC can be connected to the unit. The PC may be stationary,
portable or handheld. Setups and/or alarm receipt can be performed via an operating program.
• Service companies
Users of the following programs can receive alarm calls from the
unit.
AK series software (operating and setting)
AKM type software (only receiving alarms and logging data)
Security
Important settings are password-protected.
When logging on or out from external links, an additional security
check is required to verify the connection. This will be carried out
during the setup.
Battery Backup
The unit contains a battery, so that the clock function is still maintained if there is a power failure.
The recording of temperatures will resume when the power
comes back on.
All setups will be retained during a power failure.
AK-SM 350 Version 2.5x Manual RS8EF602 © Danfoss 01-2016 3
Operation
The following operation options are found on the front of the
monitoring unit:
Escape
• Goes back to the display readout
Navigation
• The arrow keys change what is highlighted in the display. Values
can be changed.
• "Enter" executes a selection.
When an "arrow" is shown on the top right-hand side of the
display, this means there are several menus for this level. Press an
arrow key to move to the menu.
Menu
Provides access to the menu system and consequently the setups.
See page 15 for more information.
Alarm signal and operating the alarms
• The LED ashes when there is a new alarm
• The LED lights up when the alarm is acknowledged and the
"error" has not been dealt with.
• The LED does not go out until the error has both been rectied
and acknowledged.
• The button shows the alarm text and stops the alarm signal
when it is pressed twice.
See overleaf for more information.
Print
• Starts the print-out function. Only used if a printer is connected
to the unit.
See page 40 for more information.
The display
There are several display screens used in daily operation. Here is a
short presentation:
• Overview display, with all measuring point
• Point detail display, showing the point’s actual values
• Point detail display from a controller
• Graph display, showing the point’s previous readings
• "More details" from a point
• "More details" from a controller
Descriptions of the display screens can be found on page 14
onwards.
4 Manual RS8EF602 © Danfoss 01-2016 AK-SM 350 Version 2.5x
Alarm situations
If there is an alarm, the following will happen:
Flashes
Shows alarm symbol
This area shows the alarm limits and delay time
- An alarm symbol will appear in the overview display for the point
in question
- The LED by the alarm button will ash
- The built-in siren will be activated for a set period (but only if it
has been dened)
- If a relay to the alarm function has been dened, the relay will be
enabled
- When you move to the point in question, the alarm symbol will
also be visible at the bottom left-hand side
- The alarm text is entered into the alarm list of active alarms
- If external alarm destinations have been dened, the alarm and
alarm text will be forwarded to the destination.
If you press the alarm button:
- The alarm list is shown in the display
When you select an alarm from the alarm list of active alarms
and then press "Enter", you will see several pieces of information
about the alarm.
When you press the alarm button again:
- All the alarms are acknowledged (conrmation that they have
been seen)
- The built-in siren stops
- If a relay to the alarm function has been dened, it will return to
the state "no alarm" (relay conguration page 41).
- The LED by the alarm button stops ashing and changes over to
being lit constantly if the error is still there. It will go out if the
error has disappeared.
- The alarm text is transferred to the "Alarm history" list
- Active alarms will continue to be shown in the display.
(This second press (acknowledgement) can be blocked with a
password.)
When the alarm disappears:
- The alarm symbol in the overview display disappears
- A "cancelled alarm" is sent to alarm destinations (only IP, SMS
and modem connections).
If you want to see the Alarm history, you need to press the alarm
button and then the "right arrow" button
The Alarm history can store up to 200 alarms. Once it reaches 200 the
new alarms will overwrite the oldest ones.
If you want to see the Event log you need to press the alarm button
and then press the "right arrow" twice
AK-SM 350 Version 2.5x Manual RS8EF602 © Danfoss 01-2016 5
AK-SM 350
Supply 115 V / 230 V
+10/-15%, 50/60 Hz, 10 VA
Data
Connection PT 1000 ohm at 0°C or
Pulse counter inputs for output
reading
Display Graphic LCD, 240 x 64
Direct measuring points 16
Total number of points 65
Measuring range, general -100 to +150°C
Measuring accuracy at Pt 1000 Resolution 0.1 K
Measuring interval 15, 30, 60, 120 or 240 minutes
Data capacity 12 MB ash
Battery backup Button cell for clock function (2032)
Power supply for e.g. pressure
transmitter
PTC 1000 ohm at 25°C or
NTC 5000 ohm at 25°C or
Termistor (-80 to 0, -40 to 40 or 0
to 100°C)
Digital On/O signal or
Standard 0 - 10 V / 4 - 20 mA signal
Acc. to DIN 43864.
(Only for inputs 1 and 2)
Accuracy: +/- 0.5 K
Recording of all data from all
measuring points for one year at
30-minute intervals.
Last 200 alarm warnings
5 V max. 50 mA
12 V max. 50 mA
Printer connection HP PCL-3, Parallel
Modem connection RJ 45
TCP/IP connection RJ 45
PC connection RJ 45 (RS 323)
Data communication RS232, RS485 (LON), RS485 (MOD-
Relays Quantity 2
Max. load 24 V a.c. or 230 V a.c.
Enclosure IP 20
Ambient
environment
Approvals EN 60730-1 and EN 60730-2-9
Weight 1.6 Kg
Capacitive load
The relays cannot be used for the direct connection of capacitive loads such as LEDs
and on/o control of EC motors.
All loads with a switch mode power supply must be connected with a suitable contactor or similar.
0 to 50°C, during operation
-20 to +70°C, during transport
20-80% RH, Non-condensed
No shock loads/vibrations
bus), RS485 (TP) (TP= Third Party)
Imax (AC-1) = 5 A
Imax (AC-15) = 3 A
EN 61000-6-3 and EN 61000-6-2
EN 12830 and EN 13485
6 Manual RS8EF602 © Danfoss 01-2016 AK-SM 350 Version 2.5x
Ordering
Type Measuring points Description Language Code no.
English, German, French,
Dutch, Italian
AK-SM 350 16
Cable for PC
(see also AK-ST 500 literature)
Modem cable 080Z0261
With inputs for PT 1000 ohm,
PTC 1000 ohm , NTC 5000 ohm
RJ 45 - Com port 080Z0262
English (UK), Spanish,
Portuguese, English (US)
English, Polish, Czech 080Z8504
080Z8500
080Z8502
AK-SM 350 Version 2.5x Manual RS8EF602 © Danfoss 01-2016 7
Installation
Assembly
Opening
1. Release one of the two snap catches on the side of the unit.
2. Pull o the cover.
Closing
Push the cover into place so that the two snap catches click shut.
Position
The unit should be positioned as follows:
• At eye level
• Not in direct sunlight
• Nowhere strong light can cause reections on the display
• Not in extreme temperatures or anywhere damp
• Not close to sources of electrical interference
The unit is secured with 3 screws.
The top one is positioned at eye level. Make sure that the head of
the screw is not sticking out so much that it is touching the PCB.
Then hook the unit on the screw and t the two remaining screws.
8 Manual RS8EF602 © Danfoss 01-2016 AK-SM 350 Version 2.5x
Connections
Principle
Up to 16 direct readings can be connected to the AK-SM 350.
If the number of direct measuring points is not sucient, readings
can be retrieved from an AK-LM 330. The readings are retrieved via
the RS485 - LON data communication.
Readings from a gas detector are also retrieved from this data
communication.
If separate refrigeration controllers (type EKC or AK) are used,
temperature readings can be retrieved from these controllers.
The readings are retrieved via the RS485 - LON or MOD-bus data
communication.
Controllers type AKC (DANBUSS data communication) can be connected via AK-PI 200 connected to the TCP/IP input.
Connections overview
The supply voltage is connected on the left-hand side. Next to this
connection are two relays which can, for example, be used for the
modem reset, watchdog or alarm relay. For safety reasons both
relays must be used at the same voltage – 24 V on one relay and
230 V on the other is not permitted.
On the right-hand side all the connections are low voltage.
There are three types of data communication which can be connected to other Danfoss cooling controllers equipped for the
same type of data communication.
Then there is a 5 V and a 12 V supply. They can be used for supply
voltage to a pressure transmitter that is to provide a signal to one
of the measuring points.
There are 16 connections on the far right-hand side. They can be
linked up however you like to signals from sensors, switch functions and voltage signals of up to 10 V. However, if there are pulse
readings, they must be linked up to nos. 1 or 2.
1. Supply voltage
The supply voltage must be 230 V AC or 115 V AC. At
connection, the changeover switch must be set to the actual
voltage.
The permitted tolerances mean that the supply of 115 V also
includes supply voltages of 110 V and 120 V.
1. 2. 4. 3.
AK-SM 350 Version 2.5x Manual RS8EF602 © Danfoss 01-2016 9
2. Relays
The two relays can be used for:
• External alarm function
When connected as shown, an alarm will be emitted in alarm
situations and when the power to the AK-SM 350 disappears.
• Resetting the supply voltage for a modem
After a power outage, the AK-SM 350 will control the supply
voltage for the modem, ensuring the modem restarts in a
controlled manner.
• Watchdog
Here the relay is enabled in time intervals. For example, once
an hour. If there is no relay change, an external unit will sound
an alarm.
The two relays must be connected to either low or high voltage
(115/230 V), but not low voltage on one and high voltage (115/230
V) on the other.
3. Direct measuring points
There are 16 direct measuring points.
All the odd numbers are signal inputs. All the even numbers
are earth. All the even numbers on the PCB behind the terminal
block are linked to a common earth.
If you use a common earth wire to several measuring points you
should delimit it into groups. Do not put temperature signals,
switch signals and voltage signals in the same group.
Keep your distance from sources of electrical interference and
power lines.
Relay 1
Relay 2
Sensor connections
One of the conductors is wired to an odd terminal block
number. The other is wired to earth (even number).
On/o signals from a switch function
One of the conductors is wired to an odd terminal block
number. The other is linked to earth (even number).
The switch can either be a make contact or a circuit breaker. The
function is dened under setup.
Output reading (pulse recording)
Only measuring points 1 and 2 can be used for output readings.
These inputs are designed for fast on/o changes.
Pulses are measured in accordance with DIN 43864.
The signal is wired as an on/o signal.
Voltage signal
The voltage can vary between 0 and 10 V DC.
Minus is wired to earth (even number).
Current signal
The current signal can vary between 4 and 20 mA.
Minus is wired to earth (even number).
Gas detector, type DGS
This gas detector can give a voltage signal or a current signal for
AK-SM 350.
DIN 43864
S01 interface
10 Manual RS8EF602 © Danfoss 01-2016 AK-SM 350 Version 2.5x
4. Data communication
If readings are to be retrieved via data communication, this
must be done as follows:
Controllers
The AK-SM 350 can receive signals from a number of controllers.
The controllers are connected to the RS485-LON communication
or RS485-MOD-bus communication. These two types cannot be
mixed.
Cable
There are no requirements concerning the positioning of the
AK-SM 350 for data communication. It can be at one end of the
cable or it can be anywhere along the cable.
Wiring
• LON-bus
There are no requirements concerning the polarisation of the
A and B connections. The screen connection must be looped
onwards for each controller.
• MOD-bus
A+ must be wired to A+.
B- must be wired to B-.
The screen connection must be fed onwards and tted into all
controllers.
Termination
Each end of the data communication cable must be terminated
with a resistance of 120 Ω. In some EKC controllers a termination jumper is tted. Termination takes place here by closing the
jumper.
The actual installation of the data communication cable must
comply with the requirements mentioned in the document
"Data communication between ADAP-KOOL® Refrigeration
controls". Literature sheet number = RC8AC.
Addressing
Every controller must have an address set. This address will then
be recognised by the AK-SM 350.
BUT this is provided that the address has not already been dened
for the other side (another controller on the same or dierent data
communication). If it has already been used, the existing setting
will be kept and the last one entered will not be used. Nor should
you use an address taken by a gas detector. Duplicated addresses
are not permitted.
• Each EKC controller must have "o03" entered with every address.
• The AK-SM 350 is then able to receive these addresses. There
are two possible ways for this to happen:
- Either by activating "o04" in every EKC controller, but this will
require a voltage on the AK-SM 350. (Controllers with MODbus communication do not have an "o04".)
- Or by enabling the "scan function" in the AK-SM 350. This
requires all the EKC controllers to have an address set. A
controller with MOD-bus communication can only be found
via this scan function.
In the later setup, we want to activate the "scan function", after
which all addresses can be viewed in the network list.
Gas detector, type GD
If a type GD gas detector is used, it must be connected to the
"TP" data communication.
For assembly and connection, please see literature sheet
RD7HA.
Set the address in the gas detector (max. no. of addresses is 65).
An address used by an EKC controller must not be duplicated.
Make a note of the address. It will be used later on, when the
AK-SM 350 has to be set up.
AK-SM 350 Version 2.5x Manual RS8EF602 © Danfoss 01-2016 11
External communication
Danfoss
80Z260.11
At the side of the unit there are connectors for external communication.
They can be used for the following:
• Setting up the unit
• Receiving alarms at a service company
• Receiving alarms on a mobile phone
• Service
• Printer connection. Printing out logs and alarms
PC connection
This connection can be used when setting up the unit or when
carrying out service.
The PC must have the AK service tool program uploaded.
If text for individual points needs to be entered, it would be a
good idea to use a PC connection.
If several units are to be installed with the same setup, it would be
very helpful to use the copy function in the AK service tool.
If logs are to be retrieved from the unit, this can also be done in
this way.
See also the literature sheet for the AK service tool.
TCP/IP connection
Here the unit can be linked to an Ethernet or a unit can be connected for setup and service.
Fx AK-PI 200 and controllers with DANBUSS data
communication
Modem connection
Here a modem can be connected to a xed network or mobile
network.
Printer connection
The printer can be connected when there is a need for print-outs
of e.g. logs, alarms or curves of a temperature sequence.
GSM / SMS
Cable = Modem cable
GSM Box: Siemens TC35I
(Danfoss' approved suppliers list)
Fixed network
Cable = Modem cable
Modem: Ask for a copy of
Danfoss' approved suppliers list.
Cable = Standard parallel
Printer: HP PCL-3 compatible.
Ask for a copy of Danfoss' approved suppliers list.
12 Manual RS8EF602 © Danfoss 01-2016 AK-SM 350 Version 2.5x
Conguration
Principle
This page describes the setups that are to be installed in the
monitoring unit.
The points are detailed briey so that the list can be used as a
checklist.
The monitoring unit is set up once each point has been reviewed.
Procedure
1. Create an overview of all the connections.
Decide where they will be connected.
Decide the alarm priority for the reading.
The table below shows some examples of the various possibilities.
Point no.
in display
Name Type of connection Place of
Tempe-
Di
Ai
Pow-
Power
rature
(on/
(analog)
er
meter
o)
1 xxxx A x 1-16 x
2 xxxx B x 1-16 x
3 xxxx C x 1-16 x
4 xxxx D x 1-2 x 1 or 2 only
5 xxxx E x 1-65 x
6 xxxx F x 1-xxx x
7 xxxx G x Load/store data from Power
meter
log
Gasdetector
If you require help setting up individual points, you will nd a
more detailed explanation in the next section – The functions’
mode of operation.
connection
Controller Terminal Address High Me-
Priority of alarm Note
Low Log
dium
only
meter
Then continue by:
2. Pressing the button for the main menu
3. Selecting "Service Setup" at the bottom of the display
4. Go through all the functions in "Basic setup". In one of the functions, the network will be scanned, which allows the monitoring
unit to recognise all the connected units on the data communication. Do not forget that the controllers must have an address
set, or to check that the power is turned on before the scan
function is enabled.
5. Select Point setup
6. Set all points. Use data from a table like the one above. Some of
the readings will have two alarm limits. Dierent alarm priorities
can be set for each one.
7. Create a table of the alarm activities. See the table on the right.
8. Set up the alarm function
a. Set the general functions rst
b. Then set how an alarm should be handled/routed (i.e. what
will be enabled)
c. And nally, set up the activities chosen (e.g. addresses of the
alarm destinations)
9. Check that the alarms can be sent properly
a. Set the function "Test alarm priority" to "high"
b. Enable the function "Test alarm"
c. Check that the alarm is received
d. Repeat this check for the other alarm priorities
e. Repeat this check until all the destinations have been tested
to see if they can receive alarms.
Table of alarm activities (example)
(Referred to in point 7 and utilised in point 8b)
Route 1
Time Alarm
Day High 1 x
Night High 2
Day High
Night High
Day High
Night High
priority
Medium 1
Low 1
Medium 2
Low -
Alternate destination (if the link to the primary destination fails)
Medium
Low
Medium
Low
Medium
Low
Medium
Low
Remote
no.
Primary alarm destination
Copy destination
Alarm activity
Relay Buzzer SMS
AK-SM 350 Version 2.5x Manual RS8EF602 © Danfoss 01-2016 13
The functions' mode of operation
The display
This section will explain all the dierent functions in the dierent
display screens.
In the overview display you can use the buttons to get to the
dierent points, or the monitoring unit can be set up to "scroll"
through the points. The view is reset once the last point has been
shown.
When an arrow is shown in this position, you can move to the next
or previous point (or display) by pressing the "right arrow" or "left
arrow".
This is the overview display that shows all the dened readings.
Here each point is represented by a symbol.
Point 1 is at the top left. 2 comes next and so on. A total of 65
points, and thus 65 readings, can be shown.
A reading can be a :
• Temperature reading
• Voltage signal or current signal
• On/o signal from e.g. a door switch
• Pulse signal from an output reading
• Signal indicating that a defrost cycle is in progress
• Signal from a gas detector
• Signal from a refrigeration controller. In this case the reading
could be a temperature etc.
If you want to see the reading for point 3 for example, you need
to press the "right arrow" or "left arrow" a number of times until
point 3 is highlighted. Then you need to press "Enter" in order to
see the next display.
Changing the light strength
Hold the ESC button down and press the up/down arrow.
The overview display
The readout always returns to the overview display if it is inactive
for two minutes.
Name
The name of the plant will be entered here.
Symbol for each point
When a point is marked with a square, the text and reading for this
point will be shown at the right of the display.
A symbol for the point is shown inside the square.
The symbol could be one of the following:
Circle = Point
Drops = Defrost
Alarm
The alarm has been suppressed (via the "More details" screen)
Connector = No link to controller
Dashes = Conguration error. See page 26 for information.
Date and time
Changing the contrast
Hold the ESC button down and press the left/right arrow.
Point number
Here it is no. 1 of the 5 dened points.
This text will be replaced with a text that tells you more about the
point, e.g. "Fruit and vegetables".
Reading
Scanning of all points
This function can be chosen as an option. The point's value is
shown here for about 3 seconds. Then it moves on to the next
point. When all the points have been scanned, the process starts
again from the beginning.
14 Manual RS8EF602 © Danfoss 01-2016 AK-SM 350 Version 2.5x
Display screens for daily use
• Point detail display, showing the point’s actual values
• Graph display, showing the point’s previous readings
Name and point number
• Symbol illustrating the operating situation of the point
• Temperature values
• Value for the high temperature alarm
• The delay time for the alarm
• Value for the low temperature alarm
• Access to the graph screen etc.
Temperature sequence for the point
If you want to examine the values from the graph more closely,
press "Enter". A vertical line will then be shown on the graph. This
line indicates the time of the graph.
The temperature value for this time is shown on the top line.
The vertical line can be moved using the arrow keys.
If you want to zoom in or out on a time, use the up/down arrow
keys. These are indicated on the top line with an up arrow and
down arrow.
The values in the "More details" screen can be changed from the
monitoring unit. The new setting will be sent to the controller.
The values in "More details" are written to the controller if they are
changed.
Main menu
The main menu comes up if you press the top right-hand button
on the front panel.
You can access the following four functions from this menu:
Point overview
From here you can go back to the overview display. Please see the
previous page.
(The monitoring unit will automatically return to the overview
display if the buttons are not activated for 2 minutes.)
Network list
The units that are connected via data communication are shown
here.
The readout is only available during setup and service (e.g. in an
alarm situation in which no signal is received from a controller).
Plant control
Here you will nd the functions that are used in daily operation,
i.e.
• Defrost and lighting schedules
• Defrost setups
• P0-optimization
This screen is described overleaf.
Service setup
This is where the basic setups for the individual points and functions are carried out.
This screen is described from page 21 onwards.
AK-SM 350 Version 2.5x Manual RS8EF602 © Danfoss 01-2016 15
Functions for daily use – Setups/adjustments
This is where you set the functions used for daily operation.
• Time schedule for specifying the store’s opening time
This schedule is for sending a signal to selected controllers in
order to tell them that the temperature needs to be adjusted
because covers have been placed over the refrigeration applications.
The schedule is also used to route alarms. However, this is only
if dierent alarm destinations have been dened for the day
period and the night period.
• Time schedule for specifying defrost points
The schedule is used to send signals to selected controllers telling them to start a defrost cycle.
To the end user
These functions are an option, but they are only applicable if controllers have been installed that can
receive the signals in question.
To the installer
Please put a cross in the box if the functions have
been installed in such a way that they can be operated from the monitoring unit.
Yes
No
Defrosts, see 2 pages further
P0 optimisation, see 3 pages further
Day / night setup
Control:
If "Started" the signal status will be sent to the EKCs.
Mode:
• If "Auto" is selected, day and night will change automatically.
The signal follows the on/o value on the reference point. See
next setting.
• If "Day" is selected, the controller will always be in daytime
operation.
• If "Night" is selected, the controller will always be in night-time
operation.
DI override from a Reference point (see “Mode” = auto)
The point which the override signal is to follow is selected here.
If the point is On, the signal status “Day” will be sent to the EKCs.
DI override from a controller parameter
The address and parameter can be set via service tool type AK-ST
500. This is performed as follows:
1. Connect the AK-ST 500 to the monitoring unit
2. When the network overview is shown, press the plant control
button
3. Select day/night group
4. Select the location from which the signal will come:
a. Press 'New'
b. Select controller address (e.g. 001:005)
c. Select the group from which the signal will come
d. Select which parameter will send the signal
State:
This display shows whether the controller is in Day or Night mode.
Status DI override:
This display shows the status of the override signal, which is received from one of the two following settings.
16 Manual RS8EF602 © Danfoss 01-2016 AK-SM 350 Version 2.5x
Time schedule
(The schedule is found "one arrow to the right" of "Day/night
setup")
This is where you set the store’s opening and closing times. The
times can be used for alarm routing and day/night signals to the
controllers.
The hour setting and minute setting is entered using the arrow
keys.
Day/night signal controllers
(The schedule is found "one arrow to the right" of "Store schedule")
Inject ON signal
Name
Enter the name of the group here.
Ctrl. function
Here the user can see if the compressor regulation is in operation
or stopped.
Manual
Here the Injection On regulation can be overridden
This is where you set the addresses for all the controllers that are
to receive day/night signals
Set address.
(00:000 means no address).
Injection
Here the status of the Injection On function is shown
Pack controller
The address of the controller regulating the compressors is set
here.
Pack section number
If the controller can control more than one compressor group, the
current group must be set.
Press 'right arrow' to dene the controllers that will receive the
signal.
Set the controller's address and press 'Enter'.
Continue with the addresses of the other controllers.
AK-SM 350 Version 2.5x Manual RS8EF602 © Danfoss 01-2016 17
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