msk 528 ADDENDUM - Oehme
Contents
1. ii All Compact controller for central units AIR CONDITIONING ADDENDUM Age a Invensys S E aop S Energy Flex addendum msk528 d L i T INTRODUCTION di kon aa e ako ke oak kasek epe e a ek a an ak ka ie a ae Teds Ge USE NEN SAN ki e kwoke da e pe pe donan tate ao te en sd ik daso Bob kip a fast ka trenen sitan 3 LEE 8 I EE EE 3 Ta E ee 3 2 WIRING DIAGRAMS ccccccccsccccccccccccccccccccccccces amp 21 Wiring ACI INS ees Radar EEEa iai 4 Ze IN ZO RENE 4 Ze K EE 5 3 PHYSICAL I O CONFIGURATION ccccsccssssccsescoes Se la TIN NOUN el de ML 6 4 MSK 528 FEATUREG ccccccccccccccccccccsccccccsccccees O 4 1 Pump down on start up and during shutdown PAR CP FOUDERT 8 4 2 EXTERNAL EXCHANGER FANS PARZFEFOLUDERT e 10 A Wry COU OW MAST SE cae cee r t E ea ate nt n pt at e a e ke en okt bak e kk e cut n aes oo a Ie 10 5 PARAMETERS PAF secs 1 2 5 1 Parameter table visibility display folder table and Client table 12 Dll Parameters ASS re e 13 6 1 Low pressure digital alarms arel NON D 14 BEDE te PA E e 14 Ga EE 14 IAAI E 15 Page 2 16 Contents msk 528 Addendum aliall Energy Flex addendum msk528 1 INTRODUCTION 1 1 How to use this manual This manual uses the following conventions to highlight certain parts of the text Information that users must be aware of to prevent any damage to the system or hazards for A Important people devices data etc Users2. 3 PHYSICAL I O CONFIGURATION 3 1 Digital output configuration See the section on Electric Connections available on Energy Flex user manual msk 464 for the number and capacity of relays open collectors and for information on the symbols used on labels supplied with the device e High voltage outputs relays are identified as DO1 DO2 DO3 DO4 and DO6 e The low voltage SELV open collector output is called DO5 All digital outputs can be configured as outlined in the table below Parameter association output configuration CL90 Ges e SR 53 53 See Tab 3 Present in all models configuration CL91 Geng ER SE 53 53 See Tab 3 Present in all models configuration CL92 Ge SES DEEPER 53 53 See Tab 3 Present in all models configuration CL93 SR e SR 53 53 See Tab 3 Present in all models configuration CL94 DOL5 digital output 53 453 See Tab 3 Present in all models configuration Open collector CL95 SE e SES 53 53 See Tab 3 Present in models with 5 relays configuration See Table A msk 464 manual AOL1 digital output Analogue Outputs and Models SES configuration m kin Applies if CL71 0 set CL80 appropriately See Table A msk 464 manual CL97 AOL2 digital output See Tab 3 Analogue Outputs and Models Applies if CL72 0 set CL81 appropriately CE90 ee oie ER 53 53 See Tab 3 Present in all models configuration CE91 a aia SES 53 53 See Tab 3 Present in all models configuration CE92 er p
3. FE32 FE30 In the subsequent defrosting cycles the fan speed defrost calculation will be e Each time the defrost will end up temperature Pressure the speed will be increased by FE32 FE30 4 up to a maximum corresponding to FE32 e Each time the defrost will end however by duration the speed will be decreased by FE32 FE30 4 up to a minimum corresponding to FE30 This method allows optimum defrosting of the heat exchanger with the following settings e dF22 with the duration you set ideal defrost waiting for complete defrosting e end of defrost temperature pressure situation is not common not standard situation this would not in fact have complete defrosting eg for non ideal positioning of the end defrost probe The described mechanism has the advantage of auto adapt quickly to environmental conditions and moreover does not require the processing of the historical data msk 464 parameters involved Maximum defrost time External exchanger fan mode selection External exchanger fan on setpoint in defrost 500 999 External exchanger fan on hysteresis in defrost 1 255 Select ES for external exchanger fan n in defrost Tab 6 msk464 parameters msk 528 Addendum Page 11 16 Energy Flex addendum msk528 alizal 5 PARAMETERS PAr The parameters can be set to fully control Energy Flex controller The parameters can be modified via e Multi Function Key MFK e keys on
4. MUST read and take note of these sections Indicates further information on the subject concerned that the user should take into account En A suggestion that could help the user to understand and make better use of the information P provided E Provides further specifications on an explanation provided previously Provides references to figures details in figures parts of the text Figures are referred to Fig 1 1 Fig 1 etc using an abbreviation in bold E g Fig and a number identifying the reference E g Fig 1 For components inside figures the references are given using a letter or number E g 1 Fig 1 References to parts of the text are given using the number and title of the relative chapters sub chapters paragraphs and sub paragraphs and page number 1 2 Addendum msk 528 This document is an Addendum of Energy Flex User Manual 8MAx0228 msk 464 and should be used as and Appendix All information provided in this paper are relevant to the only specific functionalities of SBA600 MSK 528 All missing information and or related to both msk 464 528 are available on Energy Flex User Manual se HI 1 EN 2 FR 3 ES 5 DE 1 3 msk 528 Functions e Pump down in startup and shutdown e vacuum alarm e dynamic defrost Full list of functionalities is available on Energy Flex User Manual 1 4 Disclaimer This document is the exclusive property of Eliwell Controls srl and may not be reproduced or div
5. until the low pressure analogue input in the same circuit doesn t reach the Setpoint CP34 Pump down interruption set point Page 8 16 msk 528 Addendum L i I Energy Flex addendum msk528 Et On the other case analogue input non configured compressor will remain active until the low pressure digital input is activated On both cases the compressor cannot stay ON after maximum time defined by CP33 Pump down time during shutdown Atthe next request compressors of the circuit the solenoid valve opens and begins the activation of the compressors when the analog input of low pressure exceeds the value AL44 AL45 If the analog input is not configured it starts the activation when the digital input of low pressure is deactivated If the analog input of low pressure is already higher than the specified threshold or in his absence if the digital input of low pressure is already off compressors activation starts simultaneously to the opening of the valve If the analog input does not exceed the specified threshold or in the second case if the digital input low pressure does not turn off the compressor does not start and the unit produces a low pressure alarm analog or digital after a CP33 time Notes e lf an alarm is active the procedure is ignored and the compressors shut down immediately e If the device is OFF the procedure is ignored and the compressors shut down immediately e fthe device is in standby mode the pum
6. bility display folder table and Client table The tables below list all information required to read write and decode all accessible resources in the device There are 3 tables e the parameter table lists all controller configuration parameters saved in the non volatile memory including visibility e the folder table lists all parameter folder visibility details e the client table includes all I O and alarm status resources available in the volatile memory of the instrument Page 12 16 msk 528 Addendum L i Energy Flex addendum msk528 5 1 1 Parameters visibility table BN BE BE BE BE BE BE CP CP33 17162 BYE 49538 RW Pump downtimeduring shutdown Lag 0 sec pcp CP34 17164 BYTE Y 1 aos382 Rw Pump down interruption set point 50 9 99 9 20 bar from analog input AL AL58 50637 BYTE 49622 2 Y RW NANO UNG va an 0 255 10 sec from analog input AL59 17870 BYTE 49622 4 Setpoint of vacuum alarm regulator 50 0 99 9 from analog input AL60 17882 BYTE 49622 ln Hysteresis of vacuum alarm regulator from analog input Tab 7 Parameters visibility msk 528 Addendum Page 13 16 Energy Flex addendum msk528 b i 6 ALARMS Energy Flex performs full installation diagnostics and reports a variety of alarms 6 1 Low pressure digital alarms enabling Low pressure digital alarm follows standard rules see msk 464 user manual Moreover you can decid
7. e whter to activate it or not during defrost through AL13 Enable low pressure alarm during defrost Note Low pressure digital alarm related to dedicated circuit is not active if Pump down valve of the relevant circuit is active valve closed Pump down ongoing and after CP33 time after deactivation 6 2 Digital Alarms table E005 Circuit 1 digital low pressure alarm Circuit compressor activated or reversal of 4 way valve Ais E006 Circuit 2 digital low pressure alarm Circuit compressor activated or reversal of 4 way valve Ais The bypass is activated by the reversal of the 4 way valve only if at least one compressor is on if CP33 is 0 pump down enabled bypass AL11 must be 0 6 3 Analogue Alarms table E007 bow pre e ena AL44 ALAS AL43 AL46 High pressure input circuit 1 AL59 AL60 AL58 Low pressure input circuit 1 reset AL59 AL60 AL58 Low pressure input circuit 2 Page 14 16 msk 528 Addendum Vacuum circuit 2 E008 CAN pian Si Papane ee ae AL44 ALAS AL43 AL46 High pressure input circuit 2 E032 Vacuum circuit 1 L i Energy Flex addendum msk528 6 4 Vacuum alarm Enabling An analogue input shall be set as Low pressure input circuit 1 value 23 For 2 circuit plants an analogue input shall be set as e Low pressure input circuit 2 value 24 General conditions of operation Manual reset only The alarm is delayed by a time set by AL58 Activation time o
8. erature control circuits the status of the fan is dependent on the defrost condition of its respective circuit On completion of defrosting the fan resumes operation as requested by its controller e f FE11 0 the fan is forced off throughout defrosting e f FE11 1 the fan is off or on at minimum speed digital output active depending on the analogue input config ured for control of the fan in defrost and parameter FE12 External exchanger fan on setpoint in defrost in the following way External exchanger Set Point fan FE12 ON Min Probe FE14 1 External exchanger temperature circuit 1 and 2 2 High pressure input circuit 1 and 2 3 External exchanger pressure circuit 1 and 2 regulation in defrost Regulation probe Select probe for external exchanger fan 0 No probe Page 10 16 msk 528 Addendum aliall Energy Flex addendum msk528 MSK 528 features Defrost Fan speed external exchanger fan FE30 Minimum speed external exchanger fan in Cool FE32 Maximum speed external exchanger fan in Cool Once the unit is reset the first time actually the minimum speed FE30 is currently used If the defrost ends for timeout dF22 Maximum defrost time the minimum speed FE30 will be used as well If however the first defrost ends by reaching the temperature pressure then in the next defrost the fan speed will be increased by an amount equal to of the difference between the two maximum and minimum speed
9. f low pressure alarm from analog input regardless of the compressors from power on and or the valve pump down deactivation of the specific circuit The activation is associated with the AL59 Setpoint of vacuum alarm regulator from analog input and AL60 Hysteresis of vacuum alarm regulator from analog input Vacuum i alarm Set Point AL59 Low Pressure probe Notes If probe probes are in error unit will be blocked The vacuum alarm has the same effects of low pressure alarm exclusively on the corresponding circuit Compared to the alarm low pressure typically this alarm has lower setpoint and acts with different timing msk 528 Addendum Page 15 16 ii All Eliwell Controls s r l Via dell Industria 15 e Z I Paludi 32010 Pieve d Alpago BL ITALY Telephone 39 0437 986 111 Facsimile 39 0437 989 066 www eliwell it Technical Customer Support Technical helpline 39 0437 986 300 E mail techsuppeliwell invensys com Sales Telephone 39 0437 986 100 Italy 39 0437 986 200 other countries E mail saleseliwell invensys com SYSTEM ij E SSR di d ak O di l ISo Fe Gio NONO ew R D Z S A ISO 9001 9MA10239 Energy Flex EN 05 13 Copyright Eliwell Controls s r l 2013 All rights reserved
10. ie n 53 53 See Tab 3 Present in all models configuration CE93 B DER vole OSDH 53 53 See Tab 3 Present in all models configuration CE94 DOES digital output 53 453 See Tab 3 Present in all models configuration Open collector CE95 SE aoia ORE 53 53 See Tab 3 Present in models with 5 relays configuration See Table A msk 464 manual AOE1 digital output Analogue Outputs and Models miki configuration SES Applies if CL71 0 set CL80 appropriately Page 6 16 msk 528 Addendum configuration GO L i Energy Flex addendum msk528 i See Table A msk 464 manual Analogue Outputs and Models See Tab 3 Applies if CL72 0 set CL81 appropriately AOE2 digital output configuration Tab 1 Parameter association output configuration complete value list is available on Flex user manual msk 464 If multiple outputs have been configured to run the same resource these outputs will be activated in parallel Outputs configuration table Polarity is defined as indicated below Active when contact closed Active when contact open Tab 2 Digital outputs polarity Tab 3 Digital outputs configuration If multiple outputs have been configured to run the same resource these outputs will be activated in parallel msk 528 Addendum Page 7 16 Energy Flex addendum msk528 aliall 4 MSK 528 FEATURES Energy Flex msk 528 is able to manage pump down on two refrigerant circuits 4 1 Pu
11. mp down on start up and during shutdown PAR CP FOLDER The pump down system consists of unloading the evaporator before each stoppage of the last compressor in the circuit To achieve this aim it is necessary to have a solenoid valve on the liquid line which is able to completely intercept the refrigerant The solenoid valve is installed before the thermostatic expansion valve and is able to completely stop the flow of refrigerant The solenoid valve is controlled by the Energy Flex one for each circuit msk 528 parameters CP33 Pump down time during shutdown 0 999 DI see CP34 Pump down interruption set point SEL 27 Low pressure alarm activation time P i Oze oo 10 sec from analogue input Tab 4 Pump Down parameters msk 464 parameters involved age Reversal valve switching delay BE ae Reversal valve switching from Heat to Defrost delay 0 4255 Reversal valve switching from Defrost to Heat delay 0 255 Low pressure alarm regulator setpoint 500 999 20 from analogue input Low pressure alarm regulator hysteresis 1 255 2 0 b f from analogue input Tab 5 msk464 parameters Enabling The function is enabled if the parameter CP33 Pump down time during shutdown is different from 0 Digital outputs used e Circuit 1 pump down valve e Circuit 2 pump down valve appropriately configured Before the last compressor in the circuit is shut down the solenoid valve is activated closed The compressor remains active
12. p down during shutdown procedure occurs as normal During the pump down phases the digital and analogue low pressure alarms are ignored for further details refer to the msk464 user manual Notes If the value of the parameters St05 St06 St07 is different from 0 the pump down during shutdown procedure does not occur e when passing from Heat mode to defrost and on exiting defrost e when passing to antifreeze with heat pump e when changing mode The alarms which deactivate the digital outputs Circuit 1 pump down valve and Circuit 2 pump down valve are the same alarms which deactivate the compressors in the given circuit Please Note in the alarms table no distinction is made between compressors and valve in the same circuit msk 528 Addendum Page 9 16 Energy Flex addendum msk528 d L i 4 2 EXTERNAL EXCHANGER FANS PAR FE FOLDER 4 3 Fan control in defrost Enable O Ventilation disabled 1 Continuous operation Always ON 2 Operation on call ON when compressor ON Fan activation in defrost mode is useful because pressure at the external exchanger can reach alarm levels if the ex changer is not totally de iced To prevent a high pressure alarm in this situation the fans are run at minimum speed if modulating The behaviour of the external exchanger fan during defrost is determined by FE11 Enable special open system intercooler fan on in which the fans run at maximum speed If the machine has two temp
13. the SKP20 SKP10 SKW22 terminal e personal computer and Device Manager software FK Both parameters and folder visibility can be controlled See Folder table If folder visibility is modified the new setting will apply to all parameters in the folder Levels of visibility There are 4 levels of visibility that can be set by assigning appropriate values to each parameter in the folder only via serial software DeviceManager or other communication SW or programming key The visibility levels are e value 3 parameter or folder always visible e value 2 manufacturer level these parameters can only be viewed by enter the manufacturer s password see parameter Ui28 all parameters specified as always visible parameters visible at installer level and manutacturer level will be visible e value 1 installer level these parameters can only be viewed by enter the installation password see parameter Ui27 all parameters specified as always visible and parameters visible at installer level will be visible e value 0 parameter or folder NOT visible Parameters and or folders with a level of visibility other than 3 password protected will be visible only if the correct password is entered installer or manufacturer following this procedure Parameters and or folders with a level of visibility 3 are always visible even without a password in this case the following procedure is not necessary 5 1 Parameter table visi
14. ulged without the express authorisation of Eliwell Controls srl All possible care has been taken to ensure the accuracy of this document nevertheless Eliwell Controls srl cannot accept liability for any damage resulting from its use msk 528 Addendum Page 3 16 Energy Flex addendum msk528 aliall 2 WIRING DIAGRAMS 2 1 Wiring diagrams Please refer to Electrical Connections chapter from Energy Flex msk 464 manual 2 2 SKP20 Terminal GND 12V LAN Page 4 16 msk 528 Addendum aliall Energy Flex addendum msk528 2 3 SKP20 Flex network soe RS 485 SI S Models only SC646 C e SC646 C S pit Di2 DI3 Di4 DIS DIE AO2 AO1 12 Supply An AR AB Au Als GND GND DO5 5V Supply pit Di D13 Di4 Di5 Die AO2 AO1 12 Supply AN AR AB Aug Als GND GND DOS 5V Supply BLACK GND HR BLACK GND ER BLACK GND BLACK GND BLUE SIGNAL BLUE SIGNAL BLUE SIGNAL BLUE SIGNAL RED 12Vdc RED 12Vdc RED 12Vde RED 12Vde SKW22 L SKP22 L SKW22 22L black GND blue I signal BER BEB Nen a red 12Vdc red 12Vdc e Q blue signal black GND SKP20 and SKW22 SKP22 work in echo mode Both can be present in LAN newtwork Any change on SKW22 SKP22 has effect on SKP20 display and viceversa msk 528 Addendum Page 5 16 Energy Flex addendum msk528 aliall
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