Floating Suction Pressure Control User manual - Gafco
Contents
1. Rack controller v1 8 FLSTDmFCOA 30 Rack controller v2 1 or higher FLSTDmFCOA 21 Current setpoint Current setpoint 29 0 bar 103 0 bar 93 131 126 138 0 bar 131 0 bar 2 0 bar 126 0 bar 100 2 1 Current set point Current value of the Set Point variable on the compressor rack 2 Minimum set point Minimum value available for the Set Point variable on the compressor rack 3 Maximum set point Maximum value available for the Set Point variable on the compressor rack Code 030220508 rel 1 1 23 05 08 7 8 Checking the status of the systems Floating Suction Pressure Control After having started the control the trend of the set point on each compressor rack can be checked by reading the graph on the main page If all the showcases associated with the compressor rack have a duty cycle lower than the maximum set point defined for the showcase Floating Suction Pressure Control will increase the value of the set point on the compressor rack If on the other hand at least one showcase has a duty cycle above the maximum duty cycle set Floating Suction Pressure Control will decrease the value of the set point on the compressor rack To see which showcase is making the request double click the compressor rack to see the details Floating Suction Pressure Control TE Association Racks Global view of Floating Suction Pressure Control status Clicking on a rack it is possible to display in detail the rack status W2. Descrizione __ Nome plugin v T Data di installazione Serial number Codice di attivazione Yersione Plugin registrati From the Description list select the plug in to be registered Enter the serial number on the installation package Enter the activation code previously acquired from www carel com Click to save the data IS Code 030220508 rel 1 1 23 05 08 3 Floating Suction Pressure Control 3 How to use Floating Suction Pressure Control The control function must be first configured and then activated To do this proceed as follows Open the plug in Choose which systems the control is to act on Associate these systems with the showcases Start Floating Suction Pressure Control Monitor variations in the set point of the compressor rack in order to adjust if necessary the parameters of the algorithm FI a Ss Once the control has started the following operations are possible e Enable disable the control on a compressor rack e Reset the minimum and maximum peaks of the duty cycle on all the showcases e Reset the minimum and maximum peaks of the duty cycle on an individual showcase e Modify the parameters of the compressor rack and the maximum duty cycle of each showcase 4 Navigating the pages The control has a first level with three pages Main Associations and Systems These pages are connected by the Next button and are used to configure the Floating S
3. Um miAMMH N Floating Suction Pressure Control NS Association Racks Global view of Floating Suction Pressure Control status Clicking on a rack it is possible to display in detail the rack status With button START and STOP it is possible to start or to stop the plugin Uol fmm r Code 030220508 rel 1 1 23 05 08 5 Floating Suction Pressure Control Click Configuration the Systems page is shown with the list of compressor rack controllers compatible with Floating Suction Pressure Control On this page select the systems to be enabled in the plugin NOTE any devices not compatible with Floating Suction Pressure Control are not shown in the list Floating Suction Pressure Control Main Association In this page you may choose racks whose setpoint will be manage by plugin Clicking on Next configuration continues with association between racks and utilities ne 1 Rack controller v2 1 or higher FLSTDMFCOA 22 Rack controller v1 8 FLSTDmFCOA 30 Rack controller v2 1 or higher FLSTDMFCOA 21 NOTE a maximum of eight systems can be enabled Click Enable for all the systems to be enabled At the end click Next the page is displayed for associating the showcases with the enabled systems NOTE any controllers not compatible with Floating Suction Pressure Control are not shown in the list Floating Suction Pressure Control Main Association In this pa
4. term Of the devices present in the installation Floating Suction Pressure Control only involves those that manage showcases or compressor racks and for these devices only displays the essential parameters for this function The parameters of the algorithm are already set in the factory however they can be customised based on specific features of the installation Note A PlantVisorPRO plug in is an optional module to be installed on a computer where PlantVisorPRO Local is already installed and configured 2 Installation and registration After having installed Floating Suction Pressure Control it needs to be registered At www carel com click the link Request PlantVisorPRO activation code and complete all the fields on the application form Important the MAC address will be requested which is found on the PlantVisorPRO system page and the Serial Number printed on the CD Once the data have been confirmed a page will be displayed showing the activation code to be entered on the system page Then proceed as follows 1 Click Configuration in PlantVisorPRO Local and select System pages 2 Click the Plugin page the following page will be displayed for entering the registration data antVisor Globale 2007 03 12 9 02 17 Configurare guardianPRO admin PlantVisorPRO Pagine di sistema Informazioni Sistema IDE Supporto guardianPRO Segnalazioni Plugin Commento alla pagina Sir Plugin non registrati
5. utilities IR 33 C 25 0 0 IR Mpx 27 0 0 IR Mpx 29 0 0 The Parameters page will show the parameters of the compressor rack and the maximum duty cycle that can be set Floating Suction Pressure Control gt Rack detail Detail Parameters Vv Save Rack Rack controller v1 8 FLSTDmFCOA 30 1 s Configuration Utility LI Set all DCs 70 Current setpoint 35 0 bar Minimum setpoint 131 0 bar IR 33 C 24 1 024 70 Maximum setpoint 29 0 bar IR Mpx 26 1 026 Gradient 49 0 bar IR Mpx 28 1 028 70 Time window for DC 420 sty MasterCase 5 1 005 70 calculation IR33 C 23 1 023 70 Frequency for DC calculation 30 min i IR33 C 25 1 025 70 Maximum offline time 30 IR Mpx 27 1 027 y Maximum number of offline 3 IR Mpx 29 1 029 70 utilities 2 Select the compressor rack whose parameters are being set Compressor rack parameters used by the control Maximum duty cycle to be set on all the showcases for the compressor rack and button to save the data Maximum duty cycle to be set on the individual showcase for the compressor rack in question PINI Modify the parameters and click Ba to save the changes Stop and restart the control to make the changes effective Code 030220508 rel 1 1 23 05 08 9 Floating Suction Pressure Control 10 List of compressor rack parameters Parameter Description Default Current set point Current value of the Set Point v
6. CAREL Floating Suction Pressure Control _ Piantvisorpro CAREL PlantVi maoro where you need it LEGGI E CONSERVA QUESTE ISTRUZIONI 4 READ AND SAVE THESE INSTRUCTIONS Technology amp Evolution CONTENTS l Modua A O o In A 2 Installation and reeistrat ON testis iii is a io a 3 How to use Floating Suction Pressure Controla ci 4 Navisating Ihe PAS do 5 Opening Floating Suction Pressure Control cccssssscsscssccscssssssssssssssssssssscssccsssssssssssssssssssscssccscsacsssssssssessssscsscescececsacsnssnsssssseesseeseeseens 6 Configuring Fioating Suction Pressure Con 7 Stanina Floating SUCTION Pressure CO A AA 8 Checking mestaus systens anne else kb 9 Customising the compressor rack and showcase parameters ccsesscsessessesessessessssesssssssessssessessesssssssesscssssessssessessssessessssessesseessseeseees 10 Listor compressor Tack Paramelels nn a is 10 Floating Suction Pressure Control 1 Introduction The PlantVisorPRO Floating Suction Pressure Control plug in has been designed to reduce the energy consumption of showcases To do this it periodically analyses the operation of the showcases associated with the compressor racks that have been enabled and based on the duty cycle values calculated for each showcase automatically modify the set point of the rack This minimises the delivery of liquid refrigerant and consequently reduces power consumption in the medium and long
7. ariable on the rack Minimum set point Minimum value available for the Set Point variable Maximum set point Maximum value available for the Set Point variable Gradient Establishes how much the set point will be increased and decreased by following the calculation of the duty cycle on the showcases Time window for the DC calculation Indicates how long the data corresponding to the solenoid on each individual showcase is 120 minutes saved in the memory The duty cycle will be calculated based on these data once the window is full each new value will overwrite the oldest value The value may vary from 10 to 180 minutes DC calculation frequency Indicates how often the duty cycle must be calculated for the showcases associated with the 30 minutes rack and consequently the set point changed if necessary The value may vary from 10 to 180 minutes Maximum percentage of failed acquisitions for each showcase associated with the rack If this is exceeded the showcase Is considered offline connected set point Is not changed on the rack Code 030220508 rel 1 1 23 05 08 10 CAREL CAREL S p A Via dell Industria 11 35020 Brugine Padova Italy Tel 39 049 9716611 Fax 39 049 9716600 http www carel com e mail carel carel com Agenzia Agency Code 030220508 rel 1 1 23 05 2008
8. ating Suction Pressure Control Click Next the configuration is saved and the main page is shown again with the graphs already set out for each rack Ss 5I S S iN Floating Suction Pressure Control NS Association Racks Global view of Floating Suction Pressure Control status Clicking on a rack it is possible to display in detail the rack status With button START and STOP it is possible to start or to stop the plugin Plugin status Floating Suction Pressure Control stopped Rack controller v2 1 or higher FLSTDMFCOA 10 Rack controller v2 1 or higher FLSTDMFCOA 11 Current setpoint Current setpoint Mok bar Ao bar NaN aN The plug in is ready to be started and control the cooling cycle of the showcases based on the default parameters already set 7 Starting Floating Suction Pressure Control ale From the main page of the plug in click a Floating Suction Pressure Control is started and the first calculation is made of the duty cycle of each showcase Floating Suction Pressure Control yas Association Racks Global view of Floating Suction Pressure Control status Clicking on a rack it is possible to display in detail the rack status With button START and STOP it is possible to start or to stop the plugin Plugin status Ri 0 Floating Suction Pressure Control running Rack controller v2 1 or higher FLS A 22 Current setpoint 76 0 bar 93 0 bar 55 0 bar 55
9. e database even after disabling the compressor rack see Configuring Floating Suction Pressure Control NOTE after having modified the compressor rack or showcase parameters always re start the control When to modify the rack parameters For example if the installation has a lot of showcases to increase the maximum number of showcases for a failed connection Alternatively if the installation has network problems the maximum offline time may need to be increased When to modify the maximum duty cycle of a If when checking the Detail page all the values saved for the duty cycle are above to showcase the maximum duty cycle set check the operation of the showcase and if necessary increase the maximum duty cycle set To modify the parameters on the compressor rack Detail page click Parameters Detail Parameters Detail of the rack selected in the list below In this page rack status and its parameters values are displayed Moreover it is possible to reset minimum and maximum duty cycle registered Rack Rack controller v1 8 FLSTDmFCOA 30 Information Utility Current setpoint 72 0 bar Si Minimum setpoint 87 0 bar Reset all DCs Gradient 137 0 bar IR33 C 24 0 0 0 Number of configured utilities 8 i 1 IR Mpx 26 0 0 0 Lime window for DC 120 minuti i ae IR Mpx 28 0 0 0 Frequency for DC calculation 30 minuti Maximum offline time 30 MasterCase 5 0 0 Maximum number of offline 3 IR 33 C 23 0 0
10. ge you may make the association between utilities and racks It is possible as well not to associate an utility with a rack choosing item list Clicking on Next configuration continues with configuration of racks Parameters Utility MPXPRO 18 MPXPRO 20 IR33 C 24 IR Mpx 26 IR Mpx 28 MasterCase 2 MasterCase 3 MasterCase 4 MasterCase 5 MasterCase2 6 MasterCase2 7 MasterCase2 8 MPXPRO 10 MPXPRO 11 MPXPRO 12 mumnm m The page shows all the devices that can be used to control showcases Only associate the devices that are effectively connected to the showcases with the systems Leave as not configured the showcases in the list Code 030220508 rel 1 1 23 05 08 BE Racks Rack controller v2 1 or higher FLSTDmFCOA 22 Rack controller v2 1 or higher FLSTDmFCOA 22 Rack controller v1 8 FLSTDmFCOA 30 Rack controller v1 8 FLSTDmFCOA 30 Rack controller v1 8 FLSTDmFCOA 30 Ole Rack controller v2 1 or higher FLSTDmFCOA 21 Rack controller v2 1 or higher FLSTDmFCOA 21 vl Rack controller v2 1 or higher FLSTDmFCOA 21 lv Rack controller v1 8 FLSTDmFCOA 30 vl Rack controller v2 1 or higher FLSTDmFCOA 21 Rack controller v2 1 or higher FLSTDmFCOA 21 lv Rack controller v2 1 or higher FLSTDmFCOA 21 Flo
11. ith button START and STOP it is possible to start or to stop the plugin Plugin status U 15 N 1 Floating Suction Pressure Control running ontroller v2 1 or higher FLSTDmFCOA Q Rack controller v1 8 FLSTDmFCOA 30 Current setpoint Current setpoint 76 0 bar 29 0 bar 93 93 0 bar 55 0 bar 55 131 138 0 bar 131 0 bar 100 Rack controller v2 1 or higher FLSTDmFCOA 21 Current setpoint 103 0 bar 126 2 0 bar 126 0 bar 2 Compare the page with the list of parameters used by Floating Suction Pressure Control and the duty cycle values for each showcase i i ri ri ri il sa ea Parameters Detail of the rack selected in the list below In this page rack status and its parameters values are displayed Moreover it is possible to reset minimum and maximum duty cycle registered Rack Rack controller v1 8 FLSTDmFCOA 30 Information Utility Current setpoint 72 0 bar 87 0 bar Maximum setpoint 10 0 bar Gradient 137 0 bar Number of configured utilities 8 Minimum setpoint IR33 C 24 70 0 IR Mpx 26 70 0 IR Mpx 28 70 0 Y 30 minuti 30 Frequency for DC calculation Maximum offline time MasterCase 5 70 Maximum number of offline 3 IR 33 C 23 70 utilities IR 33 C 25 70 IR Mpx 27 70 IR Mpx 29 70 Reset all DCs JA O 0 0 0 0 0 0 0 0 0 NOTE for the descriptio
12. n of the compressor rack parameters see List of compressor rack parameters Variable Description Set DC Maximum value of the duty cycle set on the Parameters page Current DC Last calculated duty cycle value Min DC recorded Minimum duty cycle value recorded Max DC recorded Maximum duty cycle value recorded RST Resets the minimum and maximum values saved RESET Resets the minimum and maximum values saved for all the showcases associated with the rack For example if the current DC exceeds the set DC it means that the showcase Is struggling to reach the operating temperature and must be checked Press RST to set the minimum and maximum duty cycle values of a showcase to zero for example the maximum duty cycle set has been changed see When to modify the maximum duty cycle of a showcase Press RESET to set the minimum and maximum duty cycle values of all the showcases to zero for example the compressor rack parameters have been modified see When to modify the rack parameters Code 030220508 rel 1 1 23 05 08 Floating Suction Pressure Control 9 Customising the compressor rack and showcase parameters Floating Suction Pressure Control is supplied with standard parameters that manage the operation of the control Nonetheless some of the compressor rack parameters or the maximum duty cycle of a showcase can be changed for example to adjust the algorithm to the specific installation The custom parameters are always saved in th
13. uction Pressure Control They can also be opened directly at any time by clicking the name of the page Here is the typical procedure for configuring the control Main Click Systems Click Associations Click SS Configure a eee Next iii Next 4 di The second level accesses two pages Compressor rack detail and Parameters which are used to display and set the parameters for the compressor rack and the maximum duty cycle for the showcase Click the name of the page to open it To display the details of a compressor rack Main Double Compressor rack detail Click Parameters click en NE graph OO the ee o Next a relating to ee E i Parameters Zn Chi Be the rack E EEN page DD e aa nam m gt SN EEE ee Code 030220508 rel 1 1 23 05 08 4 Floating Suction Pressure Control 5 Opening Floating Suction Pressure Control To access the plug in click amp and select PLUG IN the list of plug ins installed will be shown PLUGINS A List of installed and registered plugins To access to the pages of a plugin double click the corresponding row in the list below Floating Suction Pressure Control PPSTDFSODO 1 0 2007 07 31 21 53 25 237221113 ee IDE rn B m la 6 Configuring Floating Suction Pressure Control After having entered the PLUG IN section double click Floating Suction Pressure Control the main page is shown for configuring the control 00 _ l N
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