manualshive.com logo in svg

Danfoss AK-SM 850, Руководство пользователя, Страница: 43 / 74

Поделиться
Скачать
Danfoss AK-SM 850 Скачать руководство пользователя страница 43

AKC ON (Evap shutdown when injection off)

One of the main features of the AKC On function is that the SM 

will detect if there is a pack shutdown condition.  The SM does 

this by monitoring the pack controller for such conditions.  If 

configured to do so, and upon detecting a pack shut down, the 

SM will issue a signal to all (configured) evap controllers under the 

pack suction group to close their AKV valves.  The effect of closing 

the local AKV valve is to limit liquid flow in the evaporator.  Due 

to the AKV valve being closed during a pack shutdown period 

there is a greatly reduced risk of liquid hammer or compressor 

damage upon pack / compressor start up.  The AKC ON function 

must be configured for each pack suction group.  By default, the 

associated evap controllers are set to ‘yes’ under the selection 

choice of Evap shutdown when injection off.  If a evap controller is 

not required to be part of the suction group AKC ON function, set 

this value to ‘No’. 

Pack Configuration

Under the settings / Summary screen set the question

Evap shutdown when injection off to ‘YES’

Evap Configuration

If the Evap is not required to be part of the AKC ON function, modify 

the question

Evap shutdown when injection off to ‘No’

AK-SM 850 

User Guide 

Lit. no. 

USCO.PI.R1.E1.02 © Danfoss 07-2013 

43

Содержание AK-SM 850

Страница 1: ...User Guide v1 0 AK System Manager AK SM 850 MAKING MODERN LIVING POSSIBLE...

Страница 2: ...Evap shutdown when injection off 43 Miscellaneous Configuration 44 Managers Override 51 Lighting Configuration 52 Boolean Logic Calculations 55 Energy Configuration 57 Modbus Port on AK SM 59 Enterpr...

Страница 3: ...Document revision Document Notes USCO PI R1 E1 02 First document release Document History AK SM 850 User Guide Lit no USCO PI R1 E1 02 Danfoss 07 2013 3...

Страница 4: ...al Defrost Case lighting Store Outside Lighting Night setback Shutdown Flexible Alarm Routing Output e mail IP address relay Built in Modbus LonWorks network More scope for control solutions Establish...

Страница 5: ...nd free of major vibra tions The AK SM 850 should be mounted at eye level Dimenstions Unit Width 295 mm 11 6 Unit Height 235 mm 9 3 Unit Depth 65 mm 2 5 Mounting holes 246 mm 9 7 Width Mounting holes...

Страница 6: ...lid Installation Wall Mounting box Attach screw to the wall Mount AK SM 850 to the screw Loosen Technician lid three sides Remove Technician lid Level the AK SM 850 If drilling is necessary mark up 2...

Страница 7: ...he 3 fastener into the housing part The screws are inserted into the fasteners Secure the unit by tightening the screws Remove Technician lid From the back push cables inside the housing Strip the cab...

Страница 8: ...us Lon RS485 field bus Cable type Cables twisted in pairs must be used and they may be provided with a screen Some types of communication require a cable with a screen to be used The conductor s cross...

Страница 9: ...iguring Lon devices on the control bus the highest device address that can be can be used is 127 max 120 controller in total Conductors The two wires are looped from device to device There are no pola...

Страница 10: ...data signal one or more repeaters must be added to stabilise the signal When configuring Modbus devices on the control bus the highest device address that can be used is 127 max 120 controller in tot...

Страница 11: ...ler simulation you can fully pre program your application and save the resulting database to USB for on site install Program simulation From within the web browser session simulate board and point var...

Страница 12: ...ot considered as a safe network practice To avoid these issues Danfoss strongly suggests FTP functionality in LAN network only This would reduce the risk of open FTP ports and enhance network security...

Страница 13: ...nguages The factory default the unit will display English in addition your required language can also be enabled Follow the simple steps below to display your preferred language in the local screen 1...

Страница 14: ...tton to complete the Web Wizard Licensing Wizard Enter new license functionality Not currently used Refrigeration layout Wizard used to define your refrigeration layout grouping case with packs formin...

Страница 15: ...ress the forward button to continue the wizard Use the Add button when creating offline nodes Double click the model line to bring up a selection of nodes Double click the Name line to enter a custom...

Страница 16: ...ed Allow multi case circuit creation is to support Centralized refrigeration control configuration where multiple case circuits are available Leave this check box empty if you are using a de centraliz...

Страница 17: ...oss Pack and Case controllers Under this method each Pack or Case controller on the network can be seen as self contained with control logic built in The front end AK SM under this type of application...

Страница 18: ...es to AK I O relay sensors On Off Inputs and variable outputs Any control questions that have required AK I O control will be seen in these tabs The purpose of these tabs is to allow the viewing of th...

Страница 19: ...type has a column that reflects any configured or scanned status 2 System configuration Time settings preferences The Time tab allows the system time time zone operating hours daylight savings and ho...

Страница 20: ...cific access to key system areas Once new auth types have been created enter custom name and define level of access by selecting the Settings line Authoriza tion pop up box will appear Use this screen...

Страница 21: ...ing Acknowledge Allow user to acknowledge Clear Allow user to clear alarms Log Allow user to set alarm level to log Other Main Menu Allow user to access main menu Device History Allow user to access d...

Страница 22: ...nfigured as per site requirements Master IP address if using multiple AK SM controllers in a host network enter the Master unit address 0 IP address Define the number of connections typically network...

Страница 23: ...ail server If your e mail service requires user authoriza tion enter user name and password Send to Add the e mail address for intended recipients Reply to A mandatory field that must have a valid ent...

Страница 24: ...from being sent Set time period min Hrs to stop alarms being sent Any relays configured for alarm output can be forced on off for testing purposes Remember to leave in Auto position after testing Rout...

Страница 25: ...ut options very flexible Look down each alarm action number column and any associated outputs will be seen in the left hand column Delay Once an alarm action is defined the associated time delay for t...

Страница 26: ...action time delay stop conditions The actual e mail configuration is done in the Alarm Connections page The results of the alarm output configuration can be seen in the central Alarm Routing page Foll...

Страница 27: ...an be seen and changed under the System tab I O Network Fail Alarm if communications to AK I O fails Flash Memory fail Alarm if AK SM system memory fails Database Cleared Alarm if AK SM database is cl...

Страница 28: ...ress 1 with the alarm level set to Normal alarm action 1 These factory settings can be changed in this page Any AK I O points used in the AK SM system can be found on this page with the associated ala...

Страница 29: ...n only discovered devices will be shown in the drop down boxes If your controllers are not yet on the network keep this selection to no Number of Racks Packs max 12 Enter the required amount of suctio...

Страница 30: ...This function forces the AK SM to pull back the controller settings and thus synchronize the AK SM database Only use the Down load function if you have finished controller configuration on the AK SM...

Страница 31: ...e when to perform an upload or download function so that any preset configuration is not overwritten by automatic upload by the AK SM Upload This function may be required where the case and pack contr...

Страница 32: ...SM and opens up the generic controllers parameter list for more customer specific needs The following steps highlight the procedure in Importing From the import page s double click an import line to p...

Страница 33: ...d Clear History Configuration Use this function to clear history configuration points selected for history the frequency of samples Clear History log Use this function to clear stored history in the A...

Страница 34: ...r group lists manual configuration of any param eter can be done in this page Navigate and select appropriate points for history collection via the drop down menu selector Double click a required line...

Страница 35: ...will not show up in the ST device list Once connected navigate to your required controller in the available list Access to all AK2 parameters is available via this connection Service Tool Support Whe...

Страница 36: ...ed or physical Dew point By means of utilizing temperature and relative humidity sensors the AK SM can calculate the relative Dew point Based on this Dew point reference and against a set point the ou...

Страница 37: ...4 0 8 0 90 9 mins on 1 min off 2 0 7 0 Target Dewpoint Range Example of Target Dewpoint relay output ratio Relay output percentage based on cycle time setting Example With a Dew point target range of...

Страница 38: ...Yes to the question line Use Adaptive Rail heat and in this example select Calculated Dewpoint as the dewpoint method Upon answering these questions the AK SM will automatically build sensor points to...

Страница 39: ...Number of schedules select the number of sub schedules required Start Stop Days and Holidays Define the Start Stop times days and holidays Each schedule line will also reflect the current status Fals...

Страница 40: ...cted do this via the Controllers tab Note A start stop time of 12 00AM 12 00AM always ON Set to YES to enable schedule Use drop down box to select other schedules or use Prev Next keys on the local ke...

Страница 41: ...not be corrected by Po Optimization and the maximum benefits will not be seen ensure all plant evaporator cases are running close to their designed setpoints and that defrost are operating correctly A...

Страница 42: ...ization algorithm ignores the evaporator device after a defrost This allows the evaporator to recover from a defrost without effecting the Po Optimization algorithm Define Po stop and alarm conditions...

Страница 43: ...ack shutdown period there is a greatly reduced risk of liquid hammer or compressor damage upon pack compressor start up The AKC ON function must be configured for each pack suction group By default th...

Страница 44: ...ction also has Conversion Factors Calculations Further details on conversion factors and calculations can be seen in this section Once the required misc points have been set number required configurat...

Страница 45: ...must enter in the Bd Pt fields the Bd Pt address of the sending point Type Normally Closed or Normally Open Control Input It is possible to use other defined points includ ing calculations to act as...

Страница 46: ...the point is being received from another controller on the host network You must enter in the Bd Pt fields the Bd Pt address of the sending point Type Select from various option in the drop down list...

Страница 47: ...ess 01 is sending from its Bd Pt address 1 02 then no other controller can have an output at its Bd Pt address 1 02 sending Rec The value of the point is being received from another controller on the...

Страница 48: ...posite Range Select from various option in the drop down list 0 10 10 0 0 5 Volts Control Sensor Output 0 Output 100 Override type Relay Output On Off Override point Failsafe Type Stay unchanged Maxim...

Страница 49: ...080Z0032 analog input output module This new module offers x4 analog inputs and x4 analog outputs allowing easy control of a variety of control applications Terminal 9 12 V max 100 mA Terminal 10 5 V...

Страница 50: ...o of conversion factors Enter the required amount of conversion factors Conv 1 Name for conversion factor user changeable Units Select from a range of unit types psi Bar F C ppm Parts Per million V Vo...

Страница 51: ...for Lighting lighting zones HVAC HVAC units requires suitable license Both The override is for both Lighting and HVAC Other Unit The override is for a point located on another AK SC355 Host network Ov...

Страница 52: ...e Configuration Control Light Lighting control is done via built in AK SM schedules and the optional use of photocells The following section describes a typical lighting configuration using AK SM cont...

Страница 53: ...hen lights are off the number of minutes that the lighting condition must be satisfied before lights will be turned on Post Delay When lights are on the number of minutes that the lighting condition m...

Страница 54: ...d to the Board Point address of the AK I O modules Depending on the control definition made in the previous Configuration Control Light screen various inputs will require board point addresses Navigat...

Страница 55: ...e and style of calculation point will be created Data definitions area This area contains information that identifies points that will be used in the logical statements in the next area and the curren...

Страница 56: ...sulting average value in a miscellaneous sensor driven by the calculation 1 Creating the miscellaneous points for this calculation Sensor inputs Create 3 sensor inputs the 3rd is used to display the a...

Страница 57: ...tion is done under the Configuration Control page Define how many Meters are required then select meter type Energy meter choices Pulse Vol used to record volume via pulse set to Liter Gallon Cubic me...

Страница 58: ...n the emergency generator starts A level will be added each minute unless the specified emergency load for shedding to start is reached Couple begin level Visible when coupling switch yes Emergency ge...

Страница 59: ...AK I O module only use module type AK XM 107A for pulse meter inputs Navigate to the Addresses Tab Demand limiting will be shown in later section Enter appropri ate Board Point location for the pulse...

Страница 60: ...active Update The interval over which reactive compo nents are recalculated Demand Period The interval over which demand is calculated Demand is defined as average power over a specified time interval...

Страница 61: ...ed in to the Danfoss enterprise dashboard the user can select multiple sites and select a time and duration with a load shed level action In our example above if the enterprise user wishes to reduce m...

Страница 62: ...ive on off input for the automatic transfer switch must be wired and configured In addition if the site has a coupling switch you must wire and configure an on off input for the cou pling switch Prior...

Страница 63: ...r example if your application does not have any HVAC configured the Dashboard will not show the HVAC panel Dashboard panels are automatically generated depending on the configuration no user action is...

Страница 64: ...ick the detail button to jump to the device detail screen Use the Mute Ack button to acknowledge the alarm When pressed the alarm will move to the Acknowledge list Global active alarm list Global ackn...

Страница 65: ...vice detail screen Navigation Tree Device alarms History Schedules and Advanced View Snap shot history Full screen button Controller group menu based on the controller type Status Settings Manual Oper...

Страница 66: ...appear showing additional information To view additional information and gain access to settings click the show Detail button A dashboard will slide across where a Status Settings and Manual operation...

Страница 67: ...Generic controllers i e AK CC Night Setback Generic controllers i e AK CC If a host network of AK SM units are configured a full system view can be seen by selecting the folder icon for a AK SM unit...

Страница 68: ...Load history group from file Print History Tool bar When viewing data in the history view the tool bar has a set of functions to enable various actions to be performed Convert history file to CSV Expo...

Страница 69: ...s are possible hst Danfoss history file format csv Excel compatible spreadsheet Saving any collected history as a file allows for future loading and view use the Load history from file button to load...

Страница 70: ...file provides a fall back state if at any time a later remote upgrade fails or gets corrupted Rather than leave a unit in a unstable state in the event of a corrupted remote upgrade the factory image...

Страница 71: ...mends using the Master Application Image software MAI as it contains all relevent files for correct operation Firmware Web and EDF The following steps describe how to update whilst in normal operation...

Страница 72: ...put repeat based on critical repeat time MAI Master Application Image CSI Compressed Software Image FAI Factory Application Image IP Internet Protocol EDF Extended Device File a file that represents t...

Страница 73: ...AK SM 850 User Guide Lit no USCO PI R1 E1 02 Danfoss 07 2013 73...

Страница 74: ...e right to alter its products without notice This also applies to products already on order provided that alterations can be made without subsequent changes being necessary in specifications already a...

Отзывы:

Нет отзывов