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1. RE7IN 3 bg N RE7OUT A KA r 2 REBIN 5 Fg LA 2 RESOUT 6 i Mand RESIN 7 bg Pd S LA RESOUT 8 il i M2 Panl OH hh NT Fan speed 0 10 V Dh CT 1 ro 0 10V 1 oa N Gnd 3 TEE 4 Y G D L2 L3 Page 67 12 Technical data Technical specifications LMC340i Condensing Unit controller 185mm I 110mm w 61mm h 15 30VDC 12 24VAC 50 60 HZ typical 4 VA max 15 VA Size Power supply CPU Operating temperature Storage temperature Enclosure protection Relative humidity Temperature inputs Analogue inputs Digital inputs High voltage digital input Analogue outputs Relay outputs RS485 ports USB ports Datalog Real time clock 12VDC output Ethernet connection LMC340i ARM7 processor Ethernet connec tion ARM9 20 C 60 C 30 C 60 C IP20 pollution degree 2 5 95 RH non condensing 3 for Lodam NTC sensors 40 C to 130 C 1 C accuracy 1 is used for 0 10V input Remaining tempera ture inputs are not used 2 Al1 and Al2 0 5V with 5 Volt supply for radiometric pressure transmitters Rin 25KO Use Sensata 2CP 49 for Psuc and Sensata 2CP 49 for Pdis or equivalent 2 not galvanic isolated 0
2. RESOUT NO RESOUT NC RESIN o z d e D ka 2x USB Host Modbus Ethernet 11 2 Dual compressor configuration ANOUTO ANOUT1 GND ANOUT2 ANOUT3 GND CPR2 CAP Tamb TEMP7 TEMPS GND TEMP9 TEMP10 GND TEMP11 GND Ext Setadj 12VU LUP200 display GND Fani OH Fan2 OH SCPR1 SCPR2 HP Switch Unit ON OFF Run N Unloader CPR2 Data1 A1 Data1 B1 Data2 A2 Data2 B2 1 ACIN1A 2 ACIN1B 3 ACIN2A ACIN2B ACIN3A ACIN3B ACIN4A ACIN4B ACINSA 10 ACINSB 11 ACINGA 12 ACIN6B CN22 RE6IN RE6OUT RE7IN RE7OUT RESIN RE8OUT RESIN RE9OUT edes LMC340i Power supply 12 24Vac 15 30Vde RE10OUT 8 e zem E 230Vac LLV me RE2OUT le L RE2IN 5 CPR2 Co RE3OUT 4 BEN Unloader CPR1 nloader Ne RE4OUT KSE RE4IN CN Saib 3 CTS Alarm RESIN CN33 34 2 x USB Host Modbus Ethernet Page 55 11 3 LUP200 connections LMC300 CN7 12VU DATA1 A1 DATA1 B1 Om LUP200 RS485 DATA2 A2 DATA2 B2 Gnd 65432 1 Display Power heater supply RS485 CN3 1234 CN1 CN2 12 1 2 3 59 09 ES NAN lt lt lt gt g g O O 5 5 o Max
3. oil level Check cooling of Fl Disconnect supply voltage of Fl for 10 C513 FI overloaded too hot min Restart Replace Fl or compressor if necessary C514 FI has unpermitted under voltage Supply voltage too low Page 78 Technical manual LMC340 C515 A516 C517 C518 C520 C521 C564 W574 W579 W591 W595 W597 A519 A556 W572 W583 W588 W590 W596 C599 Operation C600 C601 C602 W603 W604 W605 W606 C607 C608 C609 C610 C611 C620 C621 C622 C623 W624 FI has unpermitted over voltage Phase failure at Fl Fl overloaded Switching frequency of Fl too high FC over speed FI Auto tune Error FI Brake Resistor FI overloaded Voltage of the intermediate circuit of the Fl too low or opera tion outside of the application limits of the compressor Phase failures at Fl FI overloaded too hot Internal failure of the FI Number of faults has exceeded critical threshold High pressure limiter switch has cut out Compressor overheat protection device has cut out or relay module LOM301 is defect Oil level too low Motor of fan 1 or fan 2 or both overheated External setpoint adjustment beyond allowed limits A sensor transmitter or a cable belonging to it is damaged Tdis limiter activated repeatedly Tc condenser temperature limiter activated repeatedly FI current limiter activated repeatedly To suction temperature activated r
4. Min offset Adjustment offset value is used with sign i e 5 K to 5 K offset adjustment This function can be used for manual or automatic stepless adjustment of the setpoint based on the local varying conditions It could also be used where calibrated sensors are demanded and using their readings to adjust the setpoint 7 8 Condenser control fan control The fan speed is controlled to maintain as stable a liquid temperature as possible as this will lead to the best performance of the evaporator controllers If the condenser temperature is set to follow the ambient temperature the total power usage of the condensing unit is minimized In Installer Settings Fan control section are the parame ters for condenser control Ambient compensation sets if the ambient temperature should be followed or not The Uncomp Setpoint is only used if Ambient compensation is set to Off Ambient temp diff and Stop hysteresis defines how close the ambient temperature is followed Proportional band is the temperature band from 0 to 100 fan speed Start speed is used for securing enough torque to start the fans with dirt leaves snow etc Delta max controls the change of rate in the fan speed accord ing to condenser temperature changes There must be a certain pressure difference across the compressor Setpoint min set the minimum condenser temperature Below this the fans will not be started There Page 25 are tw
5. 17 2 Alarm parameters Together with the alarm up to 4 parameters are also stored according to the table below Parameter 3 Alarm no Parameter 2 Check injection regulators on the evaporator Check the defrost interval Check injection regulators on the evaporator Check the defrost interval Check injection regulators on the evaporator Check the defrost interval Check injection regulators on the evaporators or adjust settings for detection of multiple times liquid in the discharge line Check injection regulators on the evaporators or adjust set tings for detection of multiple times liquid in the suction line Note all changed settings and perform a factory reset in the Installer Service section Update LMC340i controller software Replace LMC340i controller if necessary Replace the LMC340i controller Set date and time of controller in menu system Replace LMC340i controller if necessary Some temperatures will also show 100 C Open the factory menu and set the correct compressor con trol mode in the Model Code field The software in the controller is a test version Update the LMC340i controller software to a released version Change mode from Manual to On in User Mode Parameter 4 Parameter 5 Sensor alarms 100 125 Lower alarm activation limit FC alarms Upper alarm activation limit Actual value 500 599 FC Speed FC Current FC Temp FC Voltage Operation alarms 600 605 Psuc Tsuc 60
6. 4 75 100 On Output step o CH TE _ aM 100 Capacity Dal Page 22 Technical manual LMC340i Each compressor has software runtime counters and start stop timers to avoid excessive wear and obtain equal life time of the two compressors Starting and stopping compressors can be limited by adjusting the Restart Start and Stop time parameters Runtime levelling is achieved by deciding which compres sor to start and which one to stop when a new output step is selected in the table below To keep the same compressor operational warm the change of positions A and B is allowed only when one compressor is more than 100 hours ahead in run time However Restart time and Minimum runtime are respect ed for each compressor Either compressor 1 or 2 can be attached to A or B This depends on the runtime levelling Capacity CPR A CPR B Era 9 0 Relay Relay P 0 25 0 Both compressors stopped 1 25 0 ON 0 0 Compressor A fully unloaded 2 25 50 ON 0 10 0 Compressor A modulated 3 50 100 ON 0 10 ON 0 10 Compressor A B modulated When starting from off state the minimum capacity is V2 V 25 of full capacity given by running one compressor alone with full unload In step 2 from 25 to 50 one compressor is gradually released until its full capacity In step 3 from 50 to 100 both compressors are run in parallel with equal unloader percentage On the chart below is show
7. C 10 C 45 C 55 C 10 C 50 C 55 C 10 C 55 C 55 C 45 C 45 C 7 C 70 C 130 C 140 C 5 bar 22 bar 22 bar 2 0 bar 10 0 bar 3 5 bar 2 1 bar 35 0 C 10 0 C 0 0 C 35 C 10 0 C 0 C 10 C 30 C 60 C 15 C 30 C 60 C 10 C 45 C 60 C 10 C 50 C 60 C 10 C 60 C 60 C 35 C 35 C 0 C 70 C 130 C 140 C 5 bar 23 bar 23 bar 2 0 bar 10 0 bar 3 5 bar 1 8 bar Technical manual LMC340i LICHEN 7 77 naz EEN 10 C 10 C 10 C 10 C Installer Settings Digital input Heat rec Default 57 C 75 C 50 C 57 C Max 63 C 80 C 55 C 60 C Parameters for refrigerants R407C R407F R410A and R507A 25 0 C 35 0 C 30 0 C 45 0 C crak nae aooo ae dac Max 12 5 C 0 0 C 12 5 C 7 5 C Min 25 C 35 C 30 C 45 C Installer Settings WeekProgram Setpoint Default 10 0 C 10 0 C 10 0 C 10 0 C Max 12 C 0 C 12 C LT C Min 10 C 10 C 10 C 10 C Installer Settings Fan control Setpoint Default 30 C 30 C 30 C 30 C Max 62 C 60 C 62 C 55 C Min 15 C 15 C 15 C 15 C Installer Settings Fan control Setpoint min Default 30 C 30 C 30 C 30 C Max 62 C 60 C 62 C 55 C Min 10 C 10 C 10 C 10 C Installer Settings Fan control Economy Setpoint Default 45 C 45 C 45 C 45 C Max 62 C
8. Dataset log Ka eva tm ar greng Pierre fy cm enm TO TY Tdis Troam Safe are Device datalog download Date range all O Today O Last week O Last 30 days Specific From date a 11 01 2000 To date 9 gx CO CO PO DO nd Please note The sample data are from a test controller O Section 0 255 and not a real unit Selecting the Graph view will show something similar to this Comment Download From test controller And finishes with TORT D Dx inrer iun i m am Information id nee T 1 Datalog download complete TES wow man wan wm aoa wem nan See section Datalogger for information about the data in the datalog The datalog is then shown as a table with all the stored data events and alarms Page 85 23 NIC tempera ture resistance table The relation between the temperature and measured resistance in the NTC sensor is listed in the following table where resistance is in Ohm and temperature in C This can be used in case of trouble shooting of the equipment At least one of the terminals of the temperature sensor must be un mounted to make a correct measurement with a multi meter To make the table more compact the listed temperatures are in steps of 29 C i e O9C 2 C 4 C 6 C and 8 C in one row Temp 2K ET L c Ohm Ohm Ohm Ohm Ohm ce HORDE ce 4 DC HOLE oe 50 667828 579718 504230 439445 383712 40 335671 294193 258307 22719
9. Liquid compressor operation detection Web server Modbus interface to external master controller Supports many languages This user manual applies to software version 2 1 6 x or later of LMC340i Page 7 A Condensing unit kit from Lodam 3 Definitions 1 Lodam condensing unit controller CO Building Management System LMC340i with Option board for extra BE D Hecno siewe 2 3606122 1 0 LOM301 and Lodam Ethernet Fl Frequency inverter Module LOM320 HW Hardware electronics Dei Input output electrical signals Limiter Short form for a limiting function which moni fofs the operating conditions 1Lodam full graphical colour display LMT Lodam Multi Tool PC communication tool for with keyboard LUP20O0i Lodam controllers ose NC Normally closed relay E NO Normally open relay Pdis Discharge pressure 1 Connector kit for LMC340i Psuc Suction pressure PWM Pulse Width Modulated Achieve an average value over time RS485 Serial communication interface 3NTC temperatures sensors SW Software Tamb Ambient temperature Tc Saturated condensing temperature calculated from the discharge pressure 1 High temperature NTC temperatures TO Saturated suction temperature calculated Sensors G A from the suction pressure hl Tdis Discharge pipe temperature Tsuc Suction pipe temperature 2 Pressure sensors with cables 2 NN l T Access license to Lodam Multi Tool CH Page
10. Lodam Condensing Unit Controller Technical manual Version 6 0 P Contents To Readthis TIS Cis eax teeth tea o e esq ate trabe 6 1 1 Reading instructions 222 usa assure meine 6 12 Userrari al tete ttes tado cin edle ca dora one 6 1 3 Safety oirir hr I e e eese se eee EA ss ea lass e essa ea ssl 7 2 General mU 7 EM IPM 8 3 1 Overview of the LMC340i Condensing unit controller 9 4 Quick 3 11 5 Optimizing energy use 12 OSFIOWTO UEM EIS MIEL ML dee eS 12 6 1 Change language iss eiie aa Ai eH nne Rs Rab renen Prada 12 6 2 List ln EE 13 6 3 Changereiigoerant eee 13 6 4 Change temperature control Mode susan 14 6 5 Change the temperature setpoint ss susan 14 6 6 Changetanmocde cece cece EEEE I eme eene 15 6 7 Reset controller to factory Settings 15 6 8 Activate Oil return funchlon cece cette eeeee tet eeeeeeees 16 GEELEN EE 17 71 Compressor protection 17 7 2 Liquid carry over detection 17 73 So nd Meel EE 18 74 Compressor control modes Model code 18 7 5 Capacity Control 19 7 6 Setting the 24 7 7 External setpoint adiustrment susan ee eeeeeeeeeeees 25 7 8 Condenser control fan Control 25 7 9 Frequency inverter contra 26 710 26 Page 2 Technical manual un 711 Operation at low Iermperatures 26 712
11. 150 mA mn E 1vqa v puc Ul OGA ZL LY LYO g 12 VDC In A DATA B DATA gt Gnd CN4 i UUO9 g IUIN Remove jumper if external power supply is used Note The display heater must be connected to a 24VAC power supply capable of supplying up to 150 mA Page 56 Technical manual un Page 57 11 4 Wirediagram single compressor use EI L1 L2 a 13 e N e e t LD PE 071 Sr i 230VB YIG 3 1 230Vac n t 24Vac Input E Power 1 AC N input 2 AC 1 RS Bue 1 VAN1 5V Suction 2 A1 Signal c Pressure 3 Gnd N 1 Pais AVAN24SV 7 Discharge 5 A2 Signal Pressure 6 Gnd jd 2 Temp2 Tomb 3 Gnd 4 Temp3 s dins 6 Gnd 5 Temp4 Tas 9 Gnd E e 2 Temp8 Tue ES e 3 Gnd N gl 5 Tempio 6 Ext Setadj 010 eal Alt Setpoint tC a M PN 3 Gnd N grai l zom 1 orced start 6 Gnd j2 Fan 1 OH Es e 1 ACINIA NB 2 ACIN1B Fan 2 OH x e 3 ACIN2A NB 4 ACIN2B Nee a 1 I Li SE BX Cpr OH i CPR protect LIT D 5 ACIN3A A NB 6 ACIN3B c th Et N Mcpr x TRE 6 T Low oil level OLC K1 2 I Low oil level fe CPR protect Brown CRE ID 7 ACINAA 1 A NB 8 ACINAB HP switch x D 9 AC
12. 60 C 62 C 55 C Min 10 C 10 C 10 C 10 C Installer Settings Fan control LowSound Setpoint Default 50 C 50 C 50 C 50 C Max 62 C 60 C 62 C 55 C Min 10 C 10 C 10 C 10 C Installer Settings Limiter control Tc max Default 62 C 60 C 62 C 55 C Max 62 C 60 C 62 C 55 C Min 25 C 35 C 30 C 45 C Installer Settings Limiter control To min Default 25 C 35 C 30 C 45 C Max 13 C 0 C 13 C 8 C Min 70 C 70 C 70 C 70 C Installer Settings Limiter control Hotgas max Default 130 C 130 C 130 C 130 C Max 140 C 140 C 140 C 140 C Min 5 bar 5 bar 5 bar 5 bar Installer Settings Limiter control dP max Default 23 bar 23 bar 34 bar 23 bar Max 23 bar 23 bar 34 bar 23 bar Min 2 0 bar 2 0 bar 3 bar 2 0 bar Installer Settings Limiter control dP min Default 10 0 bar 10 0 bar 10 0 bar 10 0 bar Max 3 5 bar 3 5 bar 5 5 bar 3 5 bar Installer Settings Winter start dP min Default 1 7 bar 1 8 bar 2 8 bar 2 2 bar Min 10 C 10 C 10 C 10 C Installer Settings Digital input Heat rec Default 57 C 57 C 57 C 50 C Max 62 C 60 C 62 C 55 C Page 35 9 Menu system 9 1 Overview of the menu system Main menu Password menu User menus Installer menus Settings Service Display Basic settings Limiter counters Alarms Week program Setup guide Capacity control LOM MB config Single CPR Dual
13. C ffl3 C in the range 60 C to 100 C 2 terminals per input Signal Gnd Discharge temperature Lodam NTC sensor Measurement range 40 C to 130 C Accuracy Tdis Tdis T Temp4 HOC in the range 109C to 60 C Discharge temperature CN5 5 ffl3eC in the range 40 C to 10 C ffli39C in the range 60 C to 130 C 2 terminals per input Signal Gnd Page 72 Technical manual LMC340 Tsuc Suction line temperature Ext Setadj External setpoint adjust ment Psuc Suction pressure Pdis Discharge pressure Fan speed O 10V Fl Speed CPRI CAP CPR2 CAP Fl Com Display LUP200 Ethernet Modbus External master controller Fan control power CPRI LLV Liquid line valve Al Al AO AO AO AO DO DO Temps CN6 2 vTemplO CN6 5 Al CN11 2 A2 CN11 5 AnoutO CNA Anoutl CN4 2 Anout2 CN4 4 Anout3 CN4 5 Datal CN7 2 Datal CN7 3 GND CN6 8 RS485 Data2 CN7 4 Data2 CN7 5 GND CN7 6 RS485 Ethernet CN3I Data CN32 3 Data2 CN32 2 GND CN32 1 RS485 12PWR CN2 1 GND CN2 2 REIOUT CNI4 8 Ne RE2OUT CNI4 6 Ne Suction line temperature Lodam NTC sensor Measurement range 609C to 100 C Accuracy ffl1 C in the range 30 C to 60 C ffl39C in the range 60 C to 30 C ffl39C in the range 60 C to 100 C 2 terminals per input Signal Gnd External setpoint adjustment A10 k resistor must be mounted from Temp10 to Gn
14. Check data cable and connector LMC340i CN6 8 and LMC340i CN7 2 3 C500 No BUS communication to Fl Check power suppiyior Fl Replace data cable or Fl if necessary C501 Eellecalcontrol The Fl is set ked control mode Use a hand terminal to change the setting to remote control C502 FC EEPROM error The Fl is defect The wiring between the Fl and the compressor motor is C503 FC stator error wrong Wire correct C504 FC AnalogRef 1 error Signal level to the FI analogue input 1 is faulty C505 FC AnalogRef 2 error Signal level to the FI analogue input 2 is faulty C506 FC AnalogRef31 error Signal level to the FI analogue input 3 is faulty Check the communication cable from LMC340i CN6 8 CN7 2 C507 FC Serial communication Error and CN7 3 to the FI The Serial port of the Fl is defect C508 Short circuit in power cable from Fl to compressor Check cable between Fl and compressor Di t for 10 min Restart C509 Internal failure of the Fl power a ais Replace FI if necessary C510 Earth fault in electric cable from Fl to compressor or in Check insulation of the Fl gt compressor and resistance of compressor itself compressor motor Operation beyond compressor application limits or compres sor damaged Disconnect supply voltage of Fl for 10 min C511 Overcurrent at Fl Then restart Check operating conditions replace compressor if necessary heck motor cooling dischai jas temperature sensor and C512 Compressor motor too hot E pend SEE
15. Digital input 2ndSetp Installer Settings WeekProgram Setpoint Installer Settings Fan control Setpoint Installer Settings Fan control Setpoint min Installer Settings Fan control Economy Setpoint Installer Settings Fan control LowSound Setpoint Installer Settings Limiter control Tc max Installer Settings Limiter control To min Installer Settings Limiter control Hotgas max Installer Settings Limiter control dP max Installer Settings Limiter control dP min Installer Settings Winter start dP min Page 34 Default Max Min Default Max Min Default Max Min Default Max Min Default Max Min Default Max Min Default Max Min Default Max Min Default Max Min Default Max Min Default Max Default 45 0 C 10 0 C 12 5 C 30 C 10 0 C 12 C 10 C 30 C 63 C 15 C 30 C 63 C 10 C 45 C 63 C 10 C 50 C 63 C 10 C 63 C 63 C 45 C 45 C 13 C 70 C 130 C 140 C 5 bar 22 bar 22 bar 2 0 bar 10 0 bar 3 5 bar 1 8 bar 30 0 C 10 0 C 25 0 C 30 C 10 0 C 25 C 10 C 30 C 80 C 15 C 30 C 80 C 10 C 45 C 80 C 10 C 50 C 80 C 10 C 80 C 80 C 30 C 30 C 25 C 70 C 130 C 140 C 5 bar 25 bar 25 bar 2 0 bar 10 0 bar 3 5 bar 1 2 bar 45 0 C 10 0 C 7 5 C 45 C 10 0 C 7 C 10 C 30 C 55 C 15 C 30 C 55
16. Fan speed 0 10 V Fl Speed N A N A Fl Com Page 70 Al Al AO AO AO AO Temp3 CN5 4 Temp4 CN5 5 Temp8 CN6 2 TemplO CN6 5 A CN11 2 A2 CN11 5 AnoutO CNA Anoutl CN4 2 Anout2 CN4 4 Anout3 CN4 5 Datal CN7 2 Datal CN7 3 GND CN6 8 RS485 Description Room coldstore temperature Lodam NTC sensor Measurement range 60 C to 100 C Accuracy 1 C in the range 30 C to 60 C e 3 C in the range 60 C to 30 C e 3 C in the range 60 C to 100 C 2 terminals per input Signal Gnd Discharge temperature Lodam NTC sensor Measurement range 40 C to 130 C Accuracy 1 C in the range 10 C to 60 C e 3 C in the range 40 C to 10 C e 3 C in the range 60 C to 130 C 2 terminals per input Signal Gnd Suction line temperature Lodam NTC sensor Measurement range 60 C to 100 C Accuracy 1 C in the range 30 C to 60 C e 3 C in the range 60 C to 30 C e 3 C in the range 60 C to 100 C 2 terminals per input Signal Gnd External setpoint adjustment 0 10V 4 20 mA A150 Q resistor must be mounted from Temp1lO to Gnd Not galvanic isolated Suction pressure For use with Sensata 2CP5 49 200 psia absolute 0 5V Discharge pressure For use with Sensata 2CP5 47 500 psig rel 0 5V Fan speed for condenser fan controller O 10V 5mA Not galvanic isolated Compressor speed for te
17. Netmask Gateway MAC address No Fl emergency mode Yes Fan controller used Yes Psuc fail FI Speed Off Hz Suction gas temp sensor Yes Factory reset Setup guide Manual settings Digital I O Display Change No to Yes with the arrow keys and press Enter After a short time the text Yes will change back to No to indicate the controller has changed all settings back to factory settings The Setup guide menu will show next to be sure that the main settings are verified Page 15 6 8 Activate Oil return function The Oil return function is default not activated It is used when the compressor often is operated at low speeds for longer periods and the unit has no oil separator It will regularly speed up the compressor to pump the oil back to the compressor Enter the installer password and open the Installer menu Basic settings gt a Settings Service New installer password Scroll to Settings and switch menu with Enter Week program Capacity control comp Inverter compr step 0 Inverter compr step 1 Fan control Limiter control Winter start Oil return VIV VV VV MM Limiter alarms V M Digital inputs Oil heater Active UnitOn Page 16 Scroll to Settings and switch menu with Enter Oil return Oil return frequency Oil return interval Evap Limiter off Run time Select Oil return line and press Enter Switch Oil return to Auto or Day with Enter and adjust other settings acc
18. Remove jumper if 3 using external power supply 24Vac CN1 1 12Vdc 2 Data 3 Data 4 Gnd zo LUP200 1 12VdcOut C 2 Gnd N 3 12Vddn 2 CPR 1 capacity CPR 2 capacity 0 10V See 2 1 end one ler HP switch Y G K2 CPR2 Liquid line valve F3 0 10V Fan speed 0 10 V 1 Exc ue ed L1 L2 13 Page 65 11 8 Wirediagram dual compressor with one Fl and one On Off compressor Page 66 L1 L2 13 PE Fl Y G OFA gt gt Or vul 00S F2 230Vac 230VB 3 Tri 24Vac Alt Setpoint i Power e input e Psuc Suction Pressure Pais Discharge Pressure Tamb OY Troom J Tas DN Tae Ext Setadj 0 1 Forced start i Fan 10H x Fan 2 OH SCPR1 Safety chain CPR1 D NB SCPR2 Safety chain CPR2 r NB HP switch x lt NB m 2 Unit On Off External release a NB Modbus Master controller Input gH 2 gt aa R VAN1 5V A1 Signal Gnd wow L VAN2 5
19. The settings of the PI controller are in Installer Settings Capacity control comp Gain sets the gain part P of the PI regulator Integral time set the integrator of the PI regulator Delta max is used for setting the maximum rate change per second Neutral zone can be used for removing instability with a hysteresis Setpoint adjustment can be Off O 10V or 4 20mA If it is either O 10V or 4 20mA the analog input 16 10 is used as analogue input Please see section 7 7 External setpoint adjustment Adjustment offset is the level of adjustment in K 7 5 1 Control mode single compressor with frequency inverter The difference from the actual temperature to the wanted setpoint is expressed as a capacity request from O to 100 where 100 is full compressor speed whether with or without frequency inverter Freq Hz Increasing cooling demand 4 Decreasing cooling demand Max 100 Capacity request Step 1 Step 0 When the compressor is stopped it will be started with Inverter min frequency when the calculated capacity based on cooling demand is higher than Capacity Max Step O the speed will be increased up to Inverter max frequency if the capacity need continues to increase If the cooling demand decreases the calculated capacity will also decrease and the speed of the compressor will decrease When the speed has decreased down to Inverter Min frequency the speed stays the
20. Wirediagram dual compressor use with Unloaders Page 62 F1 L1 L2 e 13 N 1 Un PE 0701 8111652 l 230V8 Y G 3 t 230Vac 3 7 t 24Vac Tri Input i a Power 1 AC N input vac ANAC 5 Pas 1 VAN1 5V Suction 2 A1 Signal c Pressure 3 Gnd N 1 Pi A VAN2 45V 7 Discharge 5 A2 Signal Pressure 5 Gnd E temp Teas 3 Gnd 4 Temp3 Y Tus 6 Gnd 5 5 Temp4 Tas OS 9 Gnd Zi 2 Temp8 Tae Gnd c N Temp10 6 Ext Setadj Gad N Alt Setpoint SOINI c L Gnd N 1 Forcedstart See k Gd d2 Fan 1 OH c x e 1 ACIN1A NB 2 ACIN1B Fan 2 OH x 3 ACIN2A NB 4 ACIN2B SCPR1 Safety chain CPR1 M 5 ACIN3A NB 6 ACIN3B c N SCPR2 Safety chain CPR2 2 K 7 ACIN4A 1 NB 8 ACINAB HP switch e 9 ACINSA NB 10 ACINSB ES Unit On Off External release e 11 ACINGA NB 12 ACINGB Modbus Master controller 1 Gnd C 2 Data N 3 Data 3 4 12vde 2 Ethernet LAN BILE ee ee E N 3 e Technical manual LMC340i 230VB NB Display Output heater 24Vac Display RS485 12Vde 1 1 12Vdc BR C Data2 4 2 Data N Ge 5 3 ES M 7 4 3 Gnd 6 e 4 Gnd m LUP200 Remove jumper if 1 12VdcOut C using external 2 Gnd N po
21. min 5mA HP Switch DI ACINSA NC High pressure safety switch signal 1 CN21 9 Activated by shortcutting to ground 230 VAC x15 96 50 60Hz min 5mA Unit ON OFF Run DI ACIN6A NO Run command On Run External release CN21 11 230 VAC 15 96 50 60Hz min 5mA Alt setpoint DI DIN1 NO Toggle setpoint function for digital input 1 Digital input 1 CN12 1 Signal activated by short circuiting to ground 3 3VDC max 3 3mA 1kQ 2 Not galvanic isolated Forced start DI DIN2 NO Start a forced start function for digital input 2 Digital input 2 CN12 2 Signal activated by short circuiting to ground 3 3VDC max 3 3mA 1kQ 2 Not galvanic isolated Reset Password DI DINS NO Resets passwords when short circuiting to ground for more than 3 seconds CN12 4 3 3VDC max 3 3mA 1kQ Not galvanic isolated Not used DI DIN4 NO Not used CN12 5 3 3VDC max 3 3mA 1kQ Not galvanic isolated Tamb IN Temp2 Ambient temperature Ambient temperature CN5 2 Lodam NTC sensor Measurement range 40 C to 130 C Accuracy e 1 C in the range 10 C to 60 C e 3 C in the range 40 C to 10 C e 3 C in the range 60 C to 130 C 2 terminals per input Signal Gnd Page 69 1 0 list LMC340i Condensing Unit controller Single compressor configuration Troom Room temperature Tdis Discharge temperature Tsuc Suction line temperature Ext Setadj External setpoint adjust ment Psuc Suction pressure Pdis Discharge pressure
22. 100 Default 0 Step 4 Cap max Maximum capacity for this step before shift to next step Range 0 100 Default 0 9 18 Installer Configuration menu Setup for the steps of the controllers gear box for Dual compressor mode only See section Error Reference source not found in the User manual Step 0 Cap max Step 1 Cap min Step 1 Cap max Step 2 Cap min Inverter min frequency Inverter max frequency Inverter min start freq Inverter max start freq Runtime start Runtime min Min start interval Valve open time Step O Cap max Maximum capacity for this step before shift to next step Range 0 100 Default 30 Step 1 Cap min Minimum capacity for this step Range 0 100 Default 5 Step 1 Cap max Maximum capacity for this step before shift to next step Range 0 10096 Default 70 Page 45 Step 2 Cap min Minimum capacity for this sten Range 0 10096 Default 60 Inverter min Minimum compressor speed frequency Fl Range 25 Hz 87 Hz Default 25 Hz Inverter max Maximum compressor frequency speed Range 25 Hz 87 Hz Default 87 Hz Inverter min start freq Minimum compressor Fl frequency during the start process Range 25 Hz 87 Hz Default 25 Hz Inverter max start freq Minimum compressor Fl frequency during the start process Range 25 Hz 87 Hz Defaul
23. 15 1 The product is designed ac cording to the following directives 2006 95 EC Low Voltage Directive LVD 2004 108 EC Electromagnetic Compatibility EMC 2002 95 EC RoHS Compliance 15 2 The product is tested accord ing to the following standards EN61000 6 1 EMC Immunity for residential commer cial and light industrial environments EN61000 6 3 EMC Emission standard for residential commercial and light industrial environments EN60204 Safety of machinery Electrical equipment of machines General requirements Page 76 16 Frequently Asked Ouestions FAC Q The condensing unit does not start A There are several possibilities however the status information gives a good hint to what the problem is See Status line on the Main menu 1 Is the external signal set to On The signal must be applied 2 Is the unit in On mode Set the unit in On mode 3 Is there an active alarm that prevents start of the unit Check the alarm list and solve possible alarms 4 There has been an alarm and the unit is in restart wait mode After the restart timeout period of 10 min or 15 min the unit will make a restart attempt again except in case of low oil level alarm Check the alarm list and solve problems if there are any 5 There is not enough charge on the system Check the sight glass in the receiver if the refrigerant level is suffi cient 6 The connection to the FI has been interrupted and
24. 16 Installer Fl step 1 tite e ecce te dude deep gs 44 9 17 Installer Capacity limits Dual compressor mode 44 9 18 Installer Configuration menu 45 9 19 Installer Fancontrol etiri rr nre rnrrr nner rrr raner rn 46 9 20 Installer Limiter controller ss 47 9 21 Installer Winter start 48 9 22 Installer Oil 2 48 9 23 Installer Limiter alarme 49 9 24 Installer Digital input 50 9 25 Installer Uouid Coammv overdetechon cc ceeeec eee eeeees 50 9 26 Service enu EE 51 9 27 Service Manual settings 53 9 28 Service Display of digital Inputdoutpouts eee 53 10 Examples of application use ccc ccc eee Ree 54 10 1 Guchonporeseurecontrolmode cece ec cece eee eeee ese ete eeneees 54 10 2 Room temperature control mode 54 WN ACG RIS CEO Mc a eect cee ge tease ere dee 55 11 1 Single compressor configuration 2 susan 55 11 2 Dual compressor Configuration saas e cee ce eect eeee ees 55 11 3 LUP200 Connections e eene 56 11 4 Wirediagram single compressor Usg cece ccc cece neces ences 58 11 5 Wirediagram dual compressors with FI or step less CR 60 11 6 Wirediagram dual compressor use with unloaders 62 11 7 Wirediagram dual compressor use with unloaders 64 11 8 Wirediagram dual compressor with one Fl and one On Off compressor
25. 66 12 Technicaldata ttn teta retos vade tate In deu 68 Page 4 Technical manual un 13 1 0 list for the LMC340i Condensing Unit controller 69 13 1 Single compressor Configuration susan 69 13 2 Dual compressor configuration cece cece eeeee ees 72 14 sugue EES EE E Ee 75 15 Standards ti gie usce dist ened eter a ete Red Mta HH RARE 76 15 1 The product is designed according to the following directives 76 15 2 The product is tested according to the following standards 76 16 Frequently Asked Questions FA 76 T7 Alarm system and trouble shooting 77 171 Alarm list and trouble shooting 78 17 2 Alarm parameters e ettet teen den debet ui ee en Ead 80 17 3 Events in the dataloB eicere sens edet Rat slic 81 18 Emergency Operation IR I eme me ne ene nennen 82 18 1 Fregouencv 82 18 25 Fat controller ec iiec i vtto ind Mte od echec cara tradet 82 19 Expansion OPUOMS cic E 82 SEI NETWORKI Stee sieur Se GiB detec EE EE 83 2l Firmware Update edt eet estar pr et oue I dee a 83 22 Downloading the datalog from fbecontroller reenen 84 23 NTC Iemperature eslstoncetable 86 24 NTC temperature voltage table 87 Ze X 89 20x NOTES UORM 90 Page 5 Read this fi
26. 8 Technical manual un 3 1 Overview of the LMC340i Condensing unit controller 3 1 1 Single compressor configuration Display Modbus connection Ethernet connection LUP200 Power 12 24 V ac dc Fan1 power Fan2 power Output Be Z s S 8 S s B gt Bes di o o o E o D 2 x s a c amp n D a c S O LL OVEOW I Suction pressure indui Bojeuy USB for LMT c yay eoq L Indu jeybig jeuBis uny 1 604193 199619 0 zuej 1 9619 0 LUBY YoUMS eunsseJg uBiH MOT 9 97 IO JosseJduio5 JeeuJeAQ 1099916400 Digital inputs Page 9 3 1 2 Dual compressor configuration Display Modbus connection Ethernet Connection LUP200 Power 12 24 V ac dc I I I ey af at af st af st st Sf ay ay 8 8 S 9 8 3 oi a al 8 gt el 7 el E D x i 2 2B El Hi l Wl p o o 1 5 A o o DI S al Di aj Oj S 7 ml l I a O O HI S v L ci Di n O P M CIC MACC UICE Sane DEEP ASE E VE EE CHE J F c o E I 0g e E 5 e o el L E 5 ko o m az 5 z 8 8 2 2 2 EI 9 3 3s o E LE Sl o Sl amp z o E o o a i 0 o oc al d o D e EX XE D i Q c el E EI e D o a ci Om G E l
27. CPR Manual settings Inverter compr Cap limits Digital 1 0 Inverter compr step 1 Fan control Limiter control Winter start Oil return Limiter alarms Digital inputs Liquid carry over Page 36 Technical manual LMC340i 9 2 Main menu When the User or Installer password has been entered the respective icon appears By moving the cursor to the wanted icon and pressing Enter key the submenus are shown Refrigerant is the used refrigerant of the installation Setpoint shows the actual setpoint Status shows the actual status of the unit please see the list below f Password User Installer R404A 10 C Normal Refrigerant Setpoint Status 9 2 1 Status line The status line on the main menu shows the actual unit Status Off The unit is in Off mode set in the User menu Normal Normal operation Stopped The unit is On but there is no external release signal run signal Restarting The unit is restarting after a warning an alarm or a critical alarm Critical Stop Unit stop due to a critical alarm Oil Return The Oil return function is active Min Run The unit is running the minimum run time of the com pressor Min Pause The compressor is started when the minimum pause time has elapsed Lim Tc The limiter for maximum condensing temperature is active Lim Tdis The limiter for maximum discharge gas temperature is active Lim Tfi The limiter for maximum frequency inver
28. Limiting functions Limiter contra 27 AER Tan El EE 27 714 Week program 28 715 Day light savings handling eeeee anette nneeenes 28 716 Digital MPU tSn e Mm 28 77 Oil Crankrcasehbeater 29 718 Forced liquid line valve openinmg 29 719 Service TUunctIOn mee ee 29 720 30 7 21 ResetofipasswoFds etie EIERE 30 7 22 Reset to factory Settings 30 7 23 Alarm handling 0 0 0 0 he ber a eee ee 30 7 24 Restart bhandimg scanneren eee 31 7 29 ee EE 31 7 26 Remote maintenance eee 31 8 Setup Parameters ette tee bee eminere n ep ene RE kneb rn renten 32 8 1 Room temperature control mode 32 8 2 Suction pressure control mode 34 9 Menu evstem IIR Ie ee en hee se se en e e se s n e e na re en e aeneis 36 9 1 Overview of the menu system cece cece ccc Renee 36 9 2 Malin MENU EM 37 9 3 Password Dn TEE 38 9 4 User men 38 9 5 User Display 39 9 6 User Umttercounmters ee 39 OF User Alarms uiu cett etie pes egene 40 9 8 User Date and time seng 40 93 Installer men 41 9 10 Installer Basic settings 41 Page 3 9 11 Installer Settings Single compressor mode 41 9 12 Installer Settings Dual compressor mode 42 9 13 Installer Week program 42 9 14 Installer Capacity COntroOL 43 95 Installer FI step KREE 43 9
29. in the LMC340i controller and the LUP200 display if necessary If the firmware in the LOM320 Ethernet board should be updated this can be done using a USB memory stick in one of its 2 USB type A connectors or via a firmware update on its webpage Page 83 22 Downloading tne datalog from the controller For service purposes the LMC340i is equipped with a datalog where data is stored in non volatile mernory The datalog is extracted with LMT Lodams Multi Tool The tool connects to the controller and retrieves the datalog from the controller Main menu from LMT K Connect Upload firmware Download definitions Devicelog download Condensing SDT o Open devicelog File Page 84 ete On the following menu the time range can be selected and a comment for the datalog can be added Click Retrieve from Unit to start the download Device datalog download Date range all O Today O Last week O Last 30 days Specific From date 01 01 2000 To date 28 04 2011 O Section Comment Download From test controller On this menu a filename for the downloaded datalog can be entered The datalog can be loaded later again or used for troubleshooting purposes Sven py CD Deve og i DeviceLog 081 bn My fiecent ocumerts My Documents BI My Computer After clicking the Save button the download starts Technical manual ny F DeviceLog 002
30. is low The weekprograms fan setting will be overridden On the main menu the status of the forced LowSound function is illustrated by the two icons ke The function is enabled but the corre e sponding digital input is not activated 2 The function is enabled and the digital input we is activated 7 16 3 Forced winter start Winterst When the ambient temperature is close to the setpoint in suction pressure control there is no pressure difference and the controller cannot by using TO measure if there is a capacity need To force a Start the digital input can be activated a pulse is enough Automatic winter start is hereafter performed with the settings in Installer Settings Winter start section until the unit is powered off After a power off the signal must be set again On the main menu the status of the forced Winter start function is illustrated by the two icons The function is enabled but the corre sponding digital input is not activated The function is enabled and the digital input is activated 7 16 4 Heat recovery In this mode the condenser fans are only operated if the condenser temperature passes the threshold Installer Settings Digital inputs Heat recovery fan start If the Technical manual un condenser temperature passes the threshold the heat recovery device has insufficient capacity The Condensing temperature limiter is still active and will still protect the compressor On
31. recommended say due to opening hours the weekprogram timer can be used to switch between the different setpoints on a regular weekly basis The weekprogram sets the setpoint in the Basic settings menu when the time for the next change arises as if a user had entered it manually If for example the opening hours changes often the 2nd setpoint can be used together with a digital input and use an external switch to switch between two different setpoints The above setpoints are static and a change on the userpanel would be needed to do dynamic changes The External setpoint adjustment can be used for applying dy namic adjustments to the entered setpoint This could be due to dynamic changes in the setpoint due to adaption to calibrated sensors etc This applies to both the normal setpoint and the 2nd setpoint 7 7 External setpoint adjustment Note There must be a 10kQ resistor from the 16 10 temperature input to GND If the input is setup for 4 mA 20 mA a 150 Q resistor must be added parallel with the 10 KO resistor for signal conversion The external setpoint adjustment function is enabled in Installer Settings Capacity control comp menu by set ting Setpoint adjustment to either O 10V or 4 20mA O 10V input Max offset Setpoint External setpoint adjustment 10 V Min offset 4 20mA input Max offset Setpoint 20mA 21mA External setpoint adjustment
32. setpoint 40 0 C 25 0 C 40 0 C 30 0 C Installer Basic Settings Setpoint Default 2 0 C 2 0 C 2 0 C 2 0 C Installer Settings Digital input 2ndSetp Max 22 5 C 35 0 C 17 5 C 410 0 C Min 30 C 30 C 45 C 35 C Installer Settings WeekProgram Setpoint Default 2 C 2 C 2 C 2 C Max 22 C 35 C 17 C 0 C Min 10 C 10 C 10 C 10 C Installer Settings Fan control Setpoint Default 30 C 30 C 30 C 30 C Max 63 C 80 C 55 C 60 C Min 15 C 15 C 15 C 15 C Installer Settings Fan control Setpoint min Default 30 C 30 C 30 C 30 C Max 63 C 80 C 55 C 60 C Min 10 C 10 C 10 C 10 C Installer Settings F trol E E Default 45 C 45 C 45 C 45 C Setpoint Max 63 C 80 C 55 C 60 C Min 10 C 10 C 10 C 10 C Installer Settings E 101 1 d HE owcoun Default 50 C 50 C 50 C 50 C Setpoint Max 63 C 80 C 55 C 60 C Min 10 C 10 C 10 C 10 C Installer Settings Limiter control Tc max Default 63 C 80 C 55 C 60 C Max 63 C 80 C 55 C 60 C Page 32 Technical manual LMC340i Installer Settings Limiter control To min Installer Settings Limiter control Hotgas max Installer Settings Limiter control dP max Installer Settings Limiter control dP min Installer Settings Winter start dP min Installer Settings Digital input Heat rec Default Max Min Defau
33. short time and thereby allowing the suction pressure to increase again and releasing the compressor for operation again The conditions are Compressor is stopped by the controller Room temperature is above setpoint Suction pressure is below Evaporating temp min limiter setpoint If the conditions are fulfilled the valve is opened a short time defined in Installer Settings Inverter compr step T Valve open time Default is 10 s If the suction pressure does not rise by this the valve is opened again every 5 minutes until a start can be performed 719 Service function In the Installer Service menu section the unit configura tion is listed in Project and Model Code parameters The actual software versions in the LMC300 controller and the LUP200 display are also listed here Settings for the LOM320 Ethernet module are also listed this applies also if there is no LOM320 Ethernet module mounted as the settings are stored in the LMC300 controller IP address Netmask and IP address of the network Gateway are listed The IP address can be altered to suit the local network settings Changing the Netmask is possible but may affect network performance A Gateway is a different name for a Router In case of emergency operation or operation without a frequency inverter the use of the frequency inverter can be stopped by setting No Fl emergency mode to Yes The use of the fan controller can also be stopped by changing Fan controlle
34. suction pressure as the sensor is faulty andthe unit should be kept under Page 52 surveillance Range Off Inverter min freq Inverter max freq Default Off Suction gas temp sensor Select if a suction gas temperature sensor is mounted Yes No If set to Yes the menu for adjusting the Liquid carry over protection function is extended with suction line protec tion settings Default Yes Factory reset If set to Yes the controller will reset all settings except factory configuration runtime counter and passwords to factory settings Yes No Default No Setup guide Select if the setup guide should be shown This brings up the setup guide menu and returns to the main menu after exiting this setup guide Yes No Default No LOM MB config Menu for configuring the Modbus settings of the RS485 port on the Web module Manual settings Menu for controlling outputs in manual mode for service purposes Digital I O Display Menu for displaying actual state of digital inputs and outputs Note 1 A gateway is also commonly known under the name a router Technical manual un 9 27 Service Manual settings Activation of these outputs is only active if the condensing unit has been set in manual mode in User Mode Inv freq LP trans Off RE1 Contactor K1 RE2 Valve LLV Oil Ret RE3 Crankcase heater RE4 OLC K SE B RES Alarm relay RE6 Fan 1 RE7
35. 178 70 0 167 0 156 0 147 0 138 0 129 80 0 121 0 114 0 107 0 101 0 095 90 0 09 0 084 0 08 0 075 0 071 100 0 067 0 063 0 06 0 057 0 053 110 0 051 0 048 0 045 0 043 0 041 120 0 039 0 037 0 035 0 033 0 031 For Tamb the voltage can be measured on the LMC300 controller between the terminals CN5 2 and CN5 3 For Tcoldstore the voltage can be measured on the LMC300 controller between the terminals CN5 4 and CN5 9 For Tsuc the voltage can be measured on the LMC300 controller between the terminals CN6 2 and CN6 3 Page 87 For Tdis temperature sensor Temp Temp Temp 2K Temp 4K Temp 6K Temp 8K oc V V V V V 50 3 284 3 282 3 279 3 276 3 272 40 3 268 3 264 3 259 3 253 3 247 30 3 24 3 233 3 224 3 214 3 204 20 3 192 3 18 3 166 3 15 3 133 10 3 115 3 095 3 074 3 05 3 025 0 2 998 2 969 2 937 2 904 2 869 10 2 831 2 791 2 749 2 705 2 659 20 2 611 2 56 2 508 2 454 2 398 30 2 341 2 282 2 223 2 162 2 1 40 2 037 1 975 1 912 1 848 1 785 50 1 723 1 66 1 599 1 538 1 478 60 1 42 1 362 1 306 1 251 1 198 70 1 146 1 096 1 048 1 001 0 956 80 0 912 0 871 0 831 0 792 0 755 90 0 72 0 686 0 654 0 623 0 594 100 0 566 0 539 0 502 0 49 0 467 110 0 445 0 424 0 404 0 385 0 367 120 0 35 0 334 0 319 0 299 0 282 For Tdis the voltage can be measured on the LMC300 controller between the terminals CN5 5 and CN5 6 Page 88 Technical manual un 25 Index A Alarm 77 Application use 54 C Capacity control 19 Compressor c
36. 250VAC 10A 93OVDC Page 73 CPR2 DO BES ONE CN14 4 Unloader 1 3 DO ir dd BMS Alarm DO GE de Mfanl DO con Mfan2 DO Unloader 2 3 DO GE Power supply P Sos Note 1 Power to the compressor must be cut off by exter nal safety chain when high pressure switch is activated Note 2 For the digital input DIN and DIN2 a galvanic isolated microcurrent relay must be used with a minimum current of 1 mA as the controller outputs 3 3 V 3 3 mA on these terminals Note 3 The unloader s cannot be used together with an inverter configuration Page 74 NO NO NC NO NO NO Relay for compressor 2 ON OFF Max 10A 9250VAC 10A 930VDC Relay for unloader capacity regulation CPR 1 Max 1OA 250VAC 10 30VDC Relay for alarm for external system Max 10A 9250VAC 10 930VDC Relay for fan motor 1 ON OFF Max 1OA 250VAC 5A 30VDC Relay for fan motor 2 ON OFF Max 1OA 250VAC 5A 30VDC Relay for unloader capacity regulation CPR 2 Max 1OA 250VAC 10 30VDC Power supply for the LMC340i 12 24 VAC 15 30 VDC 4 15 VA Technical manual un LUP200 14 Drawings All dimensions in mm LMC300 Mounting dimensions j 138 4 Le 125 0 Panel cutout 107 0 0 5 56 0 0 2 8x 4 6 0 1 i 4x Max R2 0 5 1 0 2 H 110 5 0 5 130 1 0 2 L TT 115 1 0 2 Page 75 15 Standards
37. 4 Max 1OA 250VAC 10A 30VDC CPR protect DO RE4OUT Relay for power for compressor protection modules CN14 2 Max 1OA 250VAC 10 30VDC BMS Alarm DO RESOUT NO Relay for alarm CN13 3 Max 1OA 250VAC 10 30VDC Mfanl DO RE6OUT Relay for fan motor 1 CN22 2 Max 1OA 250VAC 5A 30VDC Mfan2 DO BEZOUT Relay for fan motor 2 CN22 4 Max 1OA 250VAC 5A 30VDC Mcpr DO RESOUT Relay signal that compressor is running for compressor protection CN22 6 device Max 1OA 250VAC 5A 30VDC Compressor ready DO RE9OUT Relay for an expansion valve release Unloader CN22 8 Unloader relay when using in compressor with unloader mode for capacity regulation Max 10OA 250VAC 5A 30VDC Power supply P AC Power supply for the LMC340i CNI5 1 2 12 24 VAC 15 30 VDC 4 15 VA Note 1 Power to the compressor must be cut off by exter nal safety chain when high pressure switch is activated Note 2 For the digital input DINI and DIN2 a galvanic isolated microcurrent relay must be used with a minimum current of 1 mA as the controller outputs 3 3 V 3 3 mA on these terminals Page 71 13 2 Dual compressor configuration Type A D S P Analogue Digital Serial Power O B Input Output Bidirectional ACINIA Klixon for fan motor 1 overheated Fein 19 CN211 NG 230 VAC HIS 96 50 60Hz min 5mA ACIN2A Klixon for fan motor 2 overheated Tem lt QI D CN213 Ne 230 VAC HDS 50 60Hz min 5mA ACIN3A Security chain compressor 1 SCPRI D CN215 NO Si
38. 5V with pull up resistor 6 180 265VAC digital input Double isolation to low power side 4 AnOutO to AnOut3 0 10V 3 Rin gt 10kOhm max frequency 1Hz not galvanically isolated 9 RE1 to RES 10A 24VDC 10A 250VAC max 250VAC isolation between relays RES is a toggle relay max isolation 400VAC between relays RE6 to RE9 10A 24VDC 10A 250VAC resis tive max 3A inductive load double isolation to low power side max 250VAC isolation between relays 2 with common 12V 100mA output 1 used for display and 1 used for FI 1 with optional 120 termination resistor used for Modbus 1 device mode mini B for software update and communication with a PC 2 USB host A connector for software update and future use Up to 1 year capacity With 1 year battery back up Up to 500 mA 1 10 100 Mbit Display Cabinet dimensions Power supply CPU Operating temperature Storage temperature Enclosure protection Relative humidity RS485 ports USB port Display backlight lifetime Display heater Number of buttons Languages Cabinet mounting entire mounting area Technical specification LUP200i 262k colours graphical display 320x240 pixels 135 mm h 150mm w 25mm d 12 VDC ARM7 processor 20 C 60 C 30 C 60 C Front IP 66 when mounted accordingly in cabinet1 Other IP 00 5 95 RH non condensing 1 port 1 mini B connector device mode only for future use 30 000 hour
39. 6 200184 30 176683 156199 138322 122687 108991 20 96974 86415 77121 68927 61693 10 55298 49663 44610 40150 36183 9 32651 29500 26688 24173 21922 10 19904 18093 16465 15001 13683 20 12494 11420 10450 9572 8777 30 8056 7402 6807 6266 5774 40 5325 4916 4542 4200 3887 50 3601 3339 3098 2er 2674 60 2487 2315 2157 2011 1876 70 1752 1637 1530 1432 1341 80 1256 1178 105 1037 975 90 916 862 8n 768 720 100 679 640 604 571 540 110 510 483 457 433 401 120 389 369 350 332 SIS Page 86 Technical manual LMC340i 24 NIC tempera ture voltage table Using a normal multi meter the temperature reading of a NTC sensor can be controlled by measuring the voltage between the two terminals when the controller is powered up and the NTC temperature sensor is connected The measured voltage can be converted to an approx temperature using the tables in this section This can be used in case of trouble shooting of the equipment For Tamb Tcoldstore and Tsuc temperature sensors Temp Temp Temp 2K Temp 4K Temp 6K Temp 8K oc V V V V V 50 3 149 3 126 3 102 3 074 3 044 40 3 01 2 973 2 932 2 887 2 839 30 2 786 2 73 2 67 2 606 2 539 20 2 468 2 393 2 316 2 236 2 154 10 2 071 1 986 1 9 1 814 1 728 0 1 643 1 559 1 477 1 397 1 318 10 1 242 1 169 1 099 1 032 0 967 20 0 906 0 848 0 794 0 742 0 693 30 0 647 0 605 0 564 0 527 0 491 40 0 459 0 428 0 399 0 373 0 348 50 0 325 0 303 0 283 0 265 0 248 60 0 232 0 217 0 203 0 19 0
40. 6 Temperature setpoint Actual temperature 607 608 Psuc Tsuc 609 Psuc Pdis 610 Psuc Pdis 611 Psuc Pdis 620 Psuc Tsuc 621 Psuc Tsuc 622 Psuc Tsuc 623 Psuc Tsuc Internal alarms Pdis Tdis External reference Pdis Tdis Tdis TC Tdis lfc Tdis TO Pdis Tdis Pdis Tdis Pdis Tdis Pdis Tdis 624 629 TO Tsuc 904 909 o 998 999 S Page 80 Technical manual LMC340i 17 3 Events in the datalog The controller stores the following configuration changes in the datalog evento rarametert parameter2 parameters parameter Parameters 0 Power Up SW ver 1 SW ver 2 SW ver 3 SW ver 3 T Main switch change New value Old Value 2 Control mode change New value Old Value 3 Database reset Project code Model code Refrigerant 4 Model code change New value Old Value 5 System reset SW ver 1 SW ver 2 SW ver 3 SW ver 3 6 Compressor mode change New value Old Value 7 Fan mode change New value Old Value 8 Psuc emergency mode New value Old Value 9 Tset change New value Old Value gt Page 81 18 Emergency operation 18 1 Frequency inverter The LMC340i controller can control the compressor by controlling a frequency inverter or directly using a contac tor in On Off operation Best efficiency and regulation is with the frequency inverter In operation without frequency inverter either due to installation or due to breakdown of the frequency inverter two things
41. CPR C 1 a RESIN 1 w j ee e N nEsOUT NC 2 sc Lx 2 BMS alarm HP switehy L__ 1 1500163 e TTT F3 Fan speed controller 2 r REGIN 1 DOSTON eem LA REGOUT 2 r RETIN 3 L NI RE7OUT 4 r 2 RESIN 5 LA 2 REBOUT 6 400 Mant r RESIN 7 5 yf p LA REDOUTE ompressor ready i M2 E X Fan 10H n D Fan speed 0 10 V Power Gr 1 N pius peres eo eG Mfan2 Gnd 3 FX KU fa M3 Page 59 11 5 Wirediagram dual compressors with Fl or step less CR F1 L1 e L2 e L3 e N e 1 un PE 07Q1 Q F2 230VB Y G i 230Vac NB S e 3 t 24Vac Tri Input i 9 Power 1 AC N input 2 vac VAC lo 775 B Le 1 VANI aM Suction aed 2 A1 Signal G Pressure F 3 Gnd N Pas Le X 4 VAN2 45V i Discharge Zeck 5 A2 Signal Pressure Fee 6 Gnd e 2 Temp2 Tae OS e 3 Gnd e 4 Temp3 Troom H S k 6 Gnd N e 5 Temp4 Tas H S 9 Gnd d 2 Temp8 Tae T E 3 Gnd G N Ext Setadj 0 10 T 3 Tempio 6 Gnd d baten lr DR tsetpoln 9 Gnd N M o La 1 Forced start 2 Q S 6 Gnd e Fan 1 OH x e 1 ACIN1A NS 2 ACINIB Fa
42. F4 50A and one equal sized OnOff On Off compressor Fl is controlled and monitored via RS485 bus com munication Dual Ext OnOff One compressor with external Fl and equal sized On Off compressor Fl is controlled via 0 10 V analogue speed signal no Fl monitoring Technical manual un Inv With frequency inverter Danfoss FCM series or Leroy Somer using serial bus E g VARISPEED type FI F3 and F4 On Off Normal On Off Compressor mode Unl Compressor with one unloader In Fl Inverter mode the control of the inverter is via a serial bus and all control data are transmitted via the bus Also all alarm signals are read via the serial bus CPR O 10V is with an inverter however the speed reference is O 10V and is transmitted via analog output ANOUT2 OV is O Hz and 10V is max frequency There is no alarm monitoring of the FI On Off mode resembles a traditional control of a com pressor via monitoring of the pressures Unloader uses a relay to operate an unloader the compressor is without inverter and another relay turns the compressor On or Off Dual mode means that two compressors are used to achieve the needed capacity The compressors are turned on with respect to load sharing if both compressors are with Fl or On Off 7 5 Capacity control The controller uses a PI controller to maintain the select ed setpoint whether Suction pressure or Room temp control is used
43. Fan 2 RE8 Comp run sig OLC RE9 Compressor ready ANO Fan Speed AN1 Comp Speed Inv freq LP trans Off Setthe speed of the compressor Range O Off 25 87 Hz Default Off Remember to apply power to the Fl and protection modules REI RE9 Set the specified output to On or Off Default Off ANO Fan Speed Setthe fan speed on the analogue output ANOUTO Range 0 100 Default 0 ANI Comp Speed Set the compressor speed on the analogue output ANOUTI Range 0 100 Default 0 9 28 Service Display of digital input outputs Show the status of the digital inputs and outputs RE1 Contactor K1 RE2 Valve LLV Oil Ret RE3 Crankcase heater RE4 OLC K SE B RES Alarm relay RE6 Fan 1 RE7 Fan 2 RES Comp run sig OLC RE9 Compressor ready ACIN1 Fan 1 ACIN2 Fan 2 ACIN3 SE B ACIN4 OLC K ACIN5 Contactor K1 ACING Ext relase DIN1 Function 1 DIN2 Function 2 DIN3 Not used DIN4 Not used REI to REQ are digital outputs ACINI to ACIN6 are 230 VAC digital inputs DINI and DIN2 are digital inputs used for the digital input functions DIN3 and DIN4 are not used Page 53 10 Examples of application Use 10 1 Suction pressure control mode One or more display cabinets etc can be supplied by one Condensing unit via the LMC340i Condensing unit controller Condensing unit Suction pres
44. I a ON 2 o 9 9 en o E o 5 35 2 X 77 O DIR o N JAO W D I indui Bojeuy z Indu jen big L indy jey5iq reubis uny 190191 JeeuleAQ zuej 1 9419 0 Luej UG eunsseJg 64511 CHdI 61969 AjJ9JeS Ladd 1949 AjJ9JeES Digital inputs Page 10 Technical manual un 4 Quick guide When the unit is powered up first time after piping and power are connected a setup guide is presented to the user with a short list of the most important settings to define for the unit Language Date and time Refrigerant Suction pressure setp Fan operation mode Mode Exit setup guide The default settings are listed on the menu above Apply changes to the default settings and set the Mode to On and the unit is running The settings are also available in the Installer Basic setting menu after finishing the setup guide Select the used Refrigerant default is R404A The refrigerant is used for converting pressure to tempera ture for the saturated gas Adjust the needed setpoint Suction pressure setp as needed Default is 10 C Set the setpoint as high as possible to save energy Gen erally the setpoint is set too cold it is better to start with a higher temperature and then lower the setpoint if needed The setpoint can further be adjusted through a digital input external analogue input or by the use of the week program The setpoint can also be controlled by a Room tempera ture sensor
45. INSA NB 10 ACINSB ES Unit On Off External release e e 11 ACINGA NB 12 ACINGB Modbus Master controller E iGnd Je 2 2 Data N 2 3 Data 3 4 4 12Vde 2 1 Ethernet LAN PERSE Pop ON HM RI P UR PCM ERE N 3 c Page 58 Technical manual LMC340i e s 230VB NB t Y G a T1 Output Display heater 24Vac Display RS485 eur 12Vdc 1 e 112046 le N Data2 4 2 Data N Data2 5 7 3 Data 7 4 3 Gnd 6 e 4 Gnd mE LUP200 Remove jumper if 1 12VdcOut C using external i 2 Gnd N power supply 3 12Vddn 2 Co An Pom R8485 7 X T Lu Datal 2 EH oes N deeg d VARISPEED laf 7L type Fi EE C o ave N Gnd 8 Wei VARISPEED 2 4 type F3 F4 Ba RENE lioc eee D y 6 ch Fl speed p Lo c 0 10V 2 10 10V 5 im df N 2 eee s 4 Gnd 6 1 Gnd 0 10V Ta a T iian K a T t gr ono uy Vi Wy rh I ol on LMC340i eed a b M MEET N d 2 230VB REAIN 1 LA RE4OUT 2 X CPR protect r RESIN 3 L NI RE3OUT 4 m 1 RE2IN 5 4 c Oil heater le 4 RE2OUT 6 RELIN 7 e HP di Liquid line valve Le RE1OUT 8 Du T L CO K1
46. V D NN Alt Setpoint 1 ant pm UE Forced start Ce pec Fan 1 OH x D NB Fan 2 OH x e NB SCPR1 Safety chain CPR1 D NB SCPR2 Safety chain CPR2 NB HP switch x e NB v Unit On Off External release e NB Modbus Master controller 1 Ethernet LAN Input 24Vac ra rx gt gt aa VANisSV A1 Signal Gnd M BE Z VAN2 5V A2 Signal Gnd oo n Temp2 Gnd y Temp3 6 Gnd d Temp4 Gnd n Temp amp Gnd n ird Temp10 Gnd gs DIN1 Gnd DIN2 Gnd ird ACIN1A ACIN1B Ei Lcd ACIN2A ACIN2B Lal ACIN3A ACIN3B m E ACIN4A ACIN4B 9 ACINSA 10 ACINSB 11 ACINGA 12 ACIN6B 1 Gnd 2 Data 3 Data 4 12Vdc um to Z DE zo ozo Mezzo GH Z n NWZA KA W Z Technical manual LMC340i 230VB NB Output azo azo LMC340i Nann n NNZO RESOUT NC RESOUT NC 12Vdc 1 Data24 A Data2 5 Gnd 6 0 10V A Gnd 3 0 10V 5 Gnd 6 REAIN REA4OUT RESIN RE3OUT RE2IN RE2OUT REIN RE1OUT 6 usos RESIN REGIN RE6OUT RETIN RE7OUT REBIN RE8OUT RESIN RE9OUT SUAHWR BNE 0 10V 1 Gnd 3 Display heater Display RS485 oe o Tw Tua Te
47. V A2 Signal Gnd au M Temp2 Gnd s FS Temp3 6 Gnd Temp4 Gnd M Temps Gnd w 5 Temp10 6 Gnd DIN1 Gnd DIN2 Gnd P ACINTA ACIN1B M w ACIN2A ACIN2B ZS Di ACIN3A ACIN3B L E ACIN4A ACINAB E 9 ACINSA 10 ACINSB 11 ACIN6A 12 ACIN6B 1 Gnd 2 Data 3 Data 4 12Vdc 24Vac uezo G GZ oz N GZ GM Z N W Z GW Z 0 Technical manual LMC340i 230VB NB Display Output heater 24Vac Display RS485 CNI 12Vde 1 e 1 12Vde c Data2 4 Pe 2 Data ig N Data2 5 3 Dat y 3 ata2 A Data 3 Gnd 6 e 4 Gnd FE LUP200 Remove jumper if 1 12VdcOut C using external 2 Gnd N power supply 3 12Vddn 2 CPR 1 capacity RM 0 10V 4 T4 0 10V Semer i NT controller a Gnd 3 Gnd 0 1009 ve 17 CPR 2 capacity L E 0 10V 5 14 0 10V Unloader N cede A ei T controller Al 0 100 vie LMC340i n F REAIN 1 HP switch LA REAOUT 2 Se m REIN 3 Te N RE3OUT A 1 RE2IN 5 E K2 CPR 2 le 4 RE2OUT 6 T r REAIN 7 Liquid line valve LA RE1OUT 8 1 L CJ K1 CPR1 E RESIN 1 CN i Ds 3 RESOUT NC 2 377577 BMS alarm L__ 1 RESOUT NC 3 I plac F3 1 Ean speed controller KZ G L REGIN 1 kkl I ML MS 1 LA REGOUT 2 F5 ri r
48. a restart attempt will be done The alarm 500 FI missing will be in active in this period Check the communication cable to the Fl and the FI 7 The expansion valve is closed and the To limiter pre vents a start Check that the evaporator temperature is ok Check if the expansion valve is operating properly 8 The condensing unit is the coldest place in the system and at low ambient temperatures the refrigerant may stay in the unit and an opening of the expansion valve does not lead to at change in the suction pressure Check that the winter start function is enabled in suction pressure mode 9 The oil level is too low Activate the oil return function The compressor is running long periods at speeds below power frequency 50 Hz 60Hz and as a result the oil stays in the evaporator due gas speed below the designed criteria Activate the oil return function 10 A control sensor has a malfunction Check that the control sensor is valid Suction pressure transmitter in Technical manual un suction pressure control mode and coldstore temperature sensor in room temperature control mode 11 Only one compressor in dual compressor mode is used The load is too low to start the other compressor and the load levelling has not yet reached the level of switching over to use the other compressor Check also possible alarms for the compressor as there are no restart attempts due to the missing distinction between low oil level and compr
49. age 42 ACTIVE Day i Setp 10 C Low 10 C Eco 10 C Eco 10 C Monday Tuesday Tuesday Week program Select Activate program or reset it Off Active or Clear Default Off Clear Set all weekdays to the shown default values Time Set the time when the activation should be done Step is in 15 min Time OOOO equals Off Fan Set fan control mode to Eco or Low LowSound Setp Set the setpoint Default 109C in Suction pressure mode 2 C in Room temperature mode Copy Copy settings for the shown day to the selected day Technical manual un 9 14 Installer Capacity control Temperature control Controls the capacity of the com pressor by using a PI regulator The internal setpoint will be adjusted from Min to Max 0 0 50 09C E g OV will adjust with 5 0 K and 10V will adjust with 5 K Default 5 0 K 9 15 Installer Fl step O Setup for the first step of the controllers gear box Single compressor mode only Please see section Capacity Delta max control Gain Integral time Neutral zone Setpoint adjustment Adjustment offset Capacity max Gain Controller gain C Rangel 40 Default 5 Integral time Integration time sec Capacity max Maximum capacity for this step before shift to next step Range 20 1200 sec Range 0 100 Default 120 sec Default 30 Delta max Max capacity change in m
50. al and elec tronic waste the penalties are specified by local waste disposal legislation Page 6 1 1 Reading instructions The following symbols are used to draw the reader s attention to different warning levels ES Important information Danger General danger Danger High voltage Danger of electrical current or voltage 1 1 1 Reading Text listed as Installer Settings references to an entry in the menu system please see the full menu system in Menu system 1 2 User manual Before installation the user should be thoroughly familiarized with this user manual especially with purposes installation settings and operation Special care should be taken when installing and con necting external equipment sensor high voltage etc and handling the PCB s correctly according to protection against ESD Installation of the LMC340i must be performed by authorized personnel only All warranties are excluded in case installation is performed by unauthorized personnel or in case the LMC340i has not been correctly installed Electrical plant failures are to be immediately solved even though no immediate danger exists the LMC340i must not be operating Technical manual un 1 3 Safety The LMC340i is not a safety component and VAN cannot be used in medical or life support equipment The LMC340i is not a safety component according to the Machinery Directive Before plant commissioning the service t
51. and 100 The capacity request is from the PI controller calculated from the cooling demand To even out the load runtime levelling is applied Runt ime levelling is achieved by deciding which compressor to start and which one to stop when a new output step is selected in the table below To keep the same compressor operational warm the change of positions A and B is allowed only when one compressor is more than 100 hours ahead in run time However Restart time and Minimum runtime are respect ed for each compressor The unloaders are operated in On Off operation based on capacity request Either compressor 1 or 2 can be attached to A or B This depends on the runtime levelling 7 5 5 Dual compressor in On Off control and both with unloader with O 1OV control Using two compressors with electronically controlled unloaders allows the controller to control the capacity in three steps as shown in the table below In each step the controller output is a combination of a start stop signal and one O 10V analog signal for each compressor This allows the capacity of each compressor to be either zero or 50 to 100 The external capacity modulating module s are respon sible of operating the unloader valves within appropriate period and pulse shape limits specified by the compressor manufacturer Unloader Unloader B C D Compressor Capacity Compressor A Off 0 25 1 0 50 On 2 25 75 On 3 50 100 On
52. aving time Manual If temperature Control mode is room temperature line 3 says Temp setp cold store In suction pressure Control mode it is Suction Pressure setp Select the line with setpoint with the arrow keys if it is not highlighted Press Enter key to edit the setpoint and press Enter again to save it after the change with the arrow keys Technical manual un 6 6 Change fan mode To toggle the fan operation mode enter the installer password and go to the Installer menu section Select the Basic settings menu to get the menu below R404A Suc Pressure 10 0 C Refrigerant Control mode Suction pressure setp Fan operation mode Daylight saving time Manual Select the line with Fan operation mode with the arrow keys if itis not highlighted Press Enter key and select between Eco mode and LowSound mode with the arrow keys Confirm your choice with another press on Enter 6 7 Reset controller to factory settings To reset all settings to factory settings log in with installer password Open the Installer menu and select the Service menu with the Enter key Basic settings Settings Service New installer password Select the Factory reset line with the arrow keys and press Enter Standard Inv F3 2 1 4 3 1 1 4 4 1 2 0 4 192 168 001 180 255 255 255 000 192 168 001 001 00 1F 79 00 02 BO Project Model Code Controller LMC300 V Display LUP200 V Eth Board LOM320 V IP Address
53. connector LMC340i CN7 1 4 5 6 lt gt LUP200 Controller LED must be blinking Temperature and pressure sensors Check cables and connector LMC340i CN5 1 6 Check W100 Circuit of discharge gas temperature sensor open or short E ED resistance of sensor according to table W101 circuit 7 NTC temperature resistance table W102 Check cables and connector LMC340i CN5 2 3 Check W103 Circuit of ambient temperature sensor open or short circuit resistance of sensor according to table NTC temperature resistance table W104 Check cables and connector LMC340i CN5 4 9 Check W105 Circuit of cold store temperature sensor open or short circuit resistance of sensor according to table NTC temperature resistance table Check cables and connector LMC340i CN5 1 6 Check W106 Circuit of discharge gas temperature sensor open or short E S i W107 circuit resistance of sensor according to table NTC temperature resistance table heck cables and connector Check resistance of senso W114 Circuit of suction line temperature sensor open or short i S SAN W115 atau according to table NTC temperature resistance table C122 M n T Check cables and connector LMC340i CN11 1 2 3 Circuit of low pressure transmitter open or short circuit E C123 Replace low pressure transmitter W124 Circuitotliah pressuretransmitter open or short ciretie Check cables and connector LMC340i CN11 4 5 6 W125 Bole P Replace high pressure transmitter Frequency inverter FI
54. cy is the speed which the compressor should be running Oil return interval is the time between Oil return speed ups If the speed is above the Oil return frequency setting the next Oil return interval starts counting from the last time the speed was above the setting Evap Limiter off is the time in seconds TO is allowed to get below the TO limit The expansion valve may close too fast and the suction pressure will then get low Run time is the time in seconds the speed Oil return frequency should be kept If the compressor is running when the Oil return function is scheduled for a start the speed is increased if it is below the Oil return frequency setting If the compressor is stopped it is started with the Oil return frequency speed 7 11 Operation at low temperatures If the condensing unit is standing outside in cold condi tions all the refrigerant may end up in the compressor or the receiver In suction pressure control mode the con troller will not get any signal that an expansion valve has Technical manual un opened as there is no pressure difference to detect If Winter start is enabled default On in Installer Settings Winter start menu the controller will start up the compressor at regularly intervals to see if there should be an undetected cooling demand Start temp Difference is the temperature difference TO is below ambient temperature Pressure difference min is the minimum pressure difference between suc
55. d If the number of limiter functions per day is above the threshold for the alarm and this alarm is enabled the corresponding operation alarm is being activated and the CTS relay is released and the alarm icon is flashing At midnight and at power on all counters are reset to O The actual settings for the limiter functions are used together with a temperature offset Limiter Counter Alarm Default function value text gt 10 On Tdis TdisMax Tdis Lim 10K Te TeMax gt 10 On Te Lim 3K IFI IFIMax gt 10 On IFI Lim 0 5A To ToMin gt 200 Off To Lim 5K Page 27 7 14 Week program The controller has a week program function where regu larly changes of setpoint and fan mode can be performed up to 4 times per day There are 4 setups for Monday 4 for Tuesday etc up to Sunday A setup for a day can be copied to the next day Monday to Tuesday Tuesday to Wednesday etc This makes an easy setup possible Settings are in the menu Installer Settings Week pro gram For every setup the Time must be set from 00 15 to 23 45 in 15 minute steps 00 00 equals Off which means nothing happens Fan mode can be Eco or Low Setp is the setpoint that should be used from this time and on to the next setup When the time specified in a setup is up the changes are performed If the unit is without power nothing is changed The icon is visible on the main menu if the week program is enabled 7 5 Day light sav
56. d O 10V 4 20 mA a 150 resistor must be mounted parallel with the 10 ks resistor Not galvanic isolated Suction pressure For use with Sensata 2CP5 49 200 psia absolute 0 5V Discharge pressure For use with Sensata 2CP5 47 500 psig rel 0 5V Fan speed for condenser fan controller D 10V 1OmA Not galvanic isolated Compressor capacity for test purposes D 10V 0 10096 D 10V 5mA Not galvanic isolated Compressor 1 capacity D 10V 5mA Not galvanic isolated Compressor 2 capacity D 10V 5mA Not galvanic isolated RS 485 cable for Fl communication Half duplex max 100m twisted pair cable grounded shield shunt capacitance 50pF m 100 resistance AWG24 2 120 termination Receiver impedance gt 12k GND Data Al Data B1 RS 485 cable for display communication LUP200 Half duplex max 100m twisted pair cable 2 120 termination Receiver impedance gt 12k 12V I limit approx 100mA GND Data2 A2 Data2 B2 10 100 Mbit TIA EIA 568 RS 485 cable for Modbus communication with external controller Half duplex max 100m twisted pair cable 2 120 termination Receiver impedance gt 12k 12V I limit approx 100mA GND Data A Data B Power for fan controller 12V max 500 mA Relay for compressor 1 ON OFF Max 10A 9250VAC 10A 93OVDC Relay for solenoid valve in liquid line Signal that oil return function is active Max 10A 9
57. echnician shall ensure that personal safety requirements are met in conformity with the Machinery Directive on the basis of safety estimations Although the LMC340i LOM320 LOM301 and the LUP200 are approved against the specified EMC standards the final condensing unit must also be tested against the applying standards 2 General Lodam s Condensing Unit Controller LMC340i enable you to gain total control of your condensing unit to deliver cooling to one or more evaporators thereby optimizing your system to save energy time and money The Lodam Condensing Unit Controller is designed for most condensing units with a range of frequency inverter driven compressors a single On Off driven compressor single On Off driven compressor with unloader dual compressors with unloaders or dual compressors with electronically controlled unloaders Some benefits from the LMC340i Condensing unit controller Single compressor controlled by frequency inverter equipped with unloader or in On Off operation Dual compressor equipped with unloaders one FI and one On Off two FI Energy and cost saving through intelligent capacity control Eco or low sound fan mode Compressor protection lyear data log Full graphical colour display Remote monitoring through a web interface Weekly program with real time clock Easy installation Higher max capacity of compressors Refrigerant configurable Heat recovery
58. eck signal voltage 230VAC Check oil level Check and protect oil return Check oil level detector circuit Fan blocked Check cables and fan thermostat Replace fan if necessary Check cables and signal level and power supply Check potential levels Search alarm messages for failure and eliminate cause Switch of main switch and restart after 2 minutes Check if the fans are operating ok Check if the condenser is blocked dirty Interrupt supply voltage to Fl Wait 10 min Restart Replace Fl or compressor if necessary The capacity of the compressor is too high or too small expansion valve High or low pressure fault check fans and expansion valves Unit restarts when signal is valid again Check temperature and oil level Safety chain for compressor 1 is faulty Check temperature and oil level Safety chain for compressor 2 is faulty Too many successive high pressure faults Unit stops Check injection regulators on the evaporator Check the defrost interval Page 79 C625 Liquid in suction line W626 Liquid in discharge line C627 Liquid in discharge line C628 Multiple liquid discharge line C629 Multiple liquid suction line Controller W905 Failure in the data base of the controller W907 Failure of the LM340 controllers real time clock woos Voltage of battery of real time clock too low Controller been switched of too long W909 No model code W998 Test version W999 The unit is in manual mode
59. ed with accelerated speed At TO 5K a low pressure cut out and a compressor stop is performed Discharge gas temp max is set to 130 C The Tdis sensor is used for this Capacity is being reduced at Discharge gas temp max 10 K Pressure diff max is the pressure across the compressor Decrease of capacity request starts at Pressure diff max 2 bar and until Pressure diff max 2 bar Pressure diff min is the minimum allowed pressure across the compressor Below Pressure diff min the fan speed is reduced to increase the pressure difference Pressure diff max and Pressure diff min are refrigerant dependant see Setup Parameters There are also two parameters for the frequency inverter maximum temperature and maximum current which are fixed and cannot be adjusted They are for the Danfoss FCM300 series and the Leroy Somer Varmeca 30 series Other inverter types on request When the inverter temperature exceeds the limit the capacity request starts to be decreased If the inverter current exceeds the limit the compressor speed is gradually reduced down to FI min in Installer Settings Fl step l Inverter min frequency 7 13 Limiter alarms To highlight that the condensing unit is running close to its limits the controller will generate a limiter alarm in case of repeating activation of one of the limiter functions There is an individual alarm for each limiter function but not all limiter functions are monitore
60. epeatedly Dual pressure switch active Compressor 1 failure Dual compressor mode Compressor 2 failure Dual compressor mode HP faults Liquid in suction line Supply voltage too high Check supply voltage and all 3 phases at Fl input Interrupt supply voltage to Fl Wait 5 min Check cooling of FI Restart Replace Fl or compressor if necessary Check supply voltage and data cable to Fl FI speed is above setpoint Check compressor valves a broken valve can give this alarm After replacement of a FI the auto tune failed Check wiring to the compressor motor The temperature in the F3 Fl is too high Power off for 5 min and see if it settles Check refrigerant charge as this is used for Fl cooling Interrupt supply voltage to Fl Wait 5 min Check power out connector of Fl and cooling of Fl Restart Replace Fl or compressor if necessary Check supply voltage on input of Fl and make sure that oper ation is within the application limits of the compressor Check supply voltage and all three phases at Fl input Interrupt supply voltage to Fl Wait 5 min Check cooling of FI Restart Replace Fl or compressor if necessary Disconnect power for 10 min Restart Replace FI if necessary Check previous alarm messages eliminate causes and delete messages Disconnect power for 10 min Restart Replace Fl if necessary Condenser fans blocked Check condenser Is operating point within application limits Ch
61. essor overheat 12 Several temperatures shows 100 C in the display menu The model code is still set to None The controller needs a model code for configuration of the inputs and outputs 17 Alarm system and trouble snooting The LMC340i controller is equipped with a failure and alarm diagnoses system There are three alarm levels Warning Alarm and Critical A warning does not stop the unit but affects its temperature control precision An alarm will stop the unit and it will restart after the restart delay A critical alarm will make the unit stop turn on the alarm LED and turn off the CTS relay If the first letter is in uppercase Axxx Cxxx or Wxxx the alarm or warning is still standing and can t be acknowl edged until the problem is solved If the first letter is lower Case axxx CXXX Or wxxx the alarm situation is not active anymore and the alarm or warning can be acknowledged by pressing the Enter button There is also a short text to an alarm number On the sample W104 tells that temperature input T3 has an open connection and the problem is still there since W is in uppercase The alarm cannot be acknowledged before the connection has been fixed Up to 16 alarms at the same time can be shown 31 01 2010 Alarm list W104 T3 Open A WARNING Page 77 171 Alarm list and trouble shooting Requesting data Communication between display and controller faulty or interrupted Check cable and
62. estart time is multiplied with actual restart attempt number The counter for C123 alarms is decremented with 1 at midnight if the alarm is not active For C601 Compressor overheat the restart alarm is the default time For C500 FC Missing the restart time is always 1 minute The highest severity defines the restart time or if the unit stops With warnings the unit does not stop but a default value for the input reading is Used This way some cooling capacity is available at the cost of precision or maximum capacity 7 25 Web page The web pages of the LOM320 are described in a separate document as the web pages are more dynamical 7 26 Remote maintenance The data available for remote maintenance is described in a separate document Page 31 G Setup Parameters Default settings per refrigerant and temperature control mode When the refrigerant is changed in Installer Basic settings Refrigerant a number of parameters are changed They limit some of the settings and thereby adjust application settings to limits that will keep the compressor in its safe operating area If the temperature control mode is changed default setpoint and the weekprogram setpoints are changed to the default value i e 10 C for suction pressure control mode and 2 C for room temperature control mode 8 Room temperature control mode Parameters for refrigerants R22 R134a R404A and R407A LICHEN TT NN CNE User Room
63. g cooling demand Technical manual LMC340i The control function can be adjusted by Capacity Min Step O Capacity Max Step O and Capacity Max step 1 The start and stop of the compressor can be adjusted by setting the Min Start interval and Runtime Min in Install er Settings Inverter compr step 1 7 5 3 Control mode Unloader single compressor Like in inverter operation the output from the PI con troller is used to determine whether the compressor is stopped running unloaded or running full load The relay no 9 is used for the unloader valve and relay no lis used for start and stop of the compressor In step 1 the unloader valve is energized in order to unload the compressor In step 2 the unloader valve is not energized Step 0 Off Off Step 1 On On Step 2 On Off Capacity Capacity Step 1 request 5 30 100 Capacity Min Capacity Max Capacity Max Step 1 Step 0 Step 1 Increasing cooling demand lt lt Decreasing cooling demand The control function can be adjusted by Capacity Min Step O Capacity Max Step O and Capacity Max step 1 The start and stop of the compressor can be adjusted by setting the Min Start interval and Runtime Min in Install er Settings Inverter compr step 1 Page 21 7 5 4 Dual compressor in On Off control and both with unloader with On Off control Using two compressors each equipped with unloader gives the possibility to have four capacity steps 25 50 75
64. gnal from compressor protection modules i 230 VAC ffl15 50 60Hz min 5mA ACINAA Security chain compressor 2 SCPR2 D CN217 NO Signal from compressor protection modules 230 VAC ffl15 50 60Hz min 5mA ACINSA High pressure safety switch signal 1 HP Switch D CN21 9 NC Activated by shortcutting to ground 230 VAC ffl15 50 60Hz min 5mA Unit ON OFF DI ACIN6A NO Run command On Run Run CN21 11 230 VAC ffl15 50 60Hz min 5mA Toggle setpoint function for digital input 1 Alt setpoint DI DINI NO Signal activated by short circuiting to ground Digital input 1 CN12 1 3 3VDC max 3 3MA 1k 2 Not galvanic isolated Start a forced start function for digital input 2 Forced_start DI DIN2 NO Signal activated by short circuiting to ground Digital input 2 CNI2 1 3 3VDC max 3 3mA lk 2 Not galvanic isolated Resets passwords when short circuiting to ground for more than 3 Reset Password DI DIN3 NO seconds CNI2 4 3 3VDC max 3 3mA lk Not galvanic isolated Ambient temperature Lodam NTC sensor Measurement range 40 C to 130 C Accuracy Tamb T Temp2 fflleC in the range 10 C to 60 C Ambient temperature CN5 2 ffl3eC in the range 40 C to 10 C ffli39C in the range 60 C to 130 C 2 terminals per input Signal Gnd Room coldstore temperature Lodam NTC sensor Measurement range 609C to 100 C Accuracy Troom Temp3 fflleC in the range 30 C to 60 C Room temperature CN5 4 ffl3eC in the range 60 C to 30
65. he event counter for the discharge line exceeds the limit and until the event counter is reset at midnight C629 M Suc Critical alarm for multiple short liquid car Liq ry over events in the suction line Active when the event counter for the suction line exceeds the limit and until the event counter is reset at midnight 7 3 Sound reduction In dense populated areas and other areas sound from installations can become a problem The default setting is to let the controller run the condensing unit as energy efficient as possible However the fan control can be permanently changed from Eco to LowSound in Installer Basic setting Fan operation mode The P band of the normal Eco mode is multiplied with 3 this will lead to a higher condenser temperature and a little higher energy consumption The fan mode can be set by the week program to LowSound to lower the sound pressure during nights and then shift to Eco in daytime to increase energy efficiency It can also be adjusted through a digital input for example from a signal from the shutters in the display cabinets Page 18 7 4 Compressor control modes Model code The controller can be configured to control the compres sor in different ways This is configured at the factory by the Model code The model code is visible in Installer Service Model code The control model codes are One CPR ON OFF One compressor ON OFF controlled One CPR Unl One compressor ON OFF con
66. he oil return function runs autornatically Day means the Oil return function is disabled between 22 00 10 PM and 6 00 6 AM Oil return frequency is the speed the compressor is running during oil return Oil return interval is the time between two oil returns Evap Limiter off is how long time s the compressor is allowed to run if TO is below the TO Cut out limit Run time defines how long time the speed in Oil return frequency is maintained The compressor can be mounted with external monitoring devices for over heat protection and low oil level alarm Single compressor mode There are two separate inputs for these devices An automatic restart is performed 15 min after a compres sor overheat has been signalled A low oil level alarm will lead to a stop of the compressor as damage may occur during continuous operation There is no restart attempt a manual reset by power off is needed Dual compressor mode There is a safety chain input for each compressor where compressor overheating low oil level detection etc can be added Distinction between an overheated compressor and a low oil level alarm is not possible and due to this a manual reset must be per formed by powering off the unit 7 2 Liquid carry over detection Longer periods of liquid slugging will harm the compressor due to removal of lubrication and thus reducing the lifetime of the compressor By measuring the difference between the saturated tern pera
67. if Heat recovery setpoint is reached and uses normal P band Range 10 C 809C Default 50 C Page 50 9 25 Installer Liquid carry over detection Liquid refrigerant can harm the compressor and should be avoided The controller can give a warning or alarm if this situation occurs based on the settings in this menu There is a detection function for both suction line and discharge line they are default deactivated Multiple det max count Discharge line detect Dis OH min lim Discharge start delay Dis single det time Dis multiple det time Multiple det max count The number of detections before the alarms C628 M Dis Liq or C29 M Suc Lig is signalled Range O 100 Default 10 Discharge line detect Liquid carry over function for the discharge line On or Off Default Off Dis OH min lim Minimum required over heat temperature Range 2 0 K to 20 0 K Default 5 0 K Discharge start delay Compressor runtime before detection starts Range 1 min to 60 min Default 15 min Dis single det time Time to stay below the minimum overheat temperature Technical manual un before a long overheat event is detected Range 1 min to 25 min Default 5 min Dis multiple det time Time to stay below the minimum overheat temperature before a short overheat event is detected Range 5101005 Default 10 s The following line
68. ill good reaction to changes over time If set at shorter time the changes in temperature might Page 20 become larger and potentially even instable If set at a too large timing the controller will react to slow on changes in the capacity need Standard ways of tuning the PI controller can of cause be applied to the system The Delta max parameter sets the maximum allowable capacity change per second It is default 1 0 s It works as a damper on reaction to large changes in the actual temperature If set to a higher value the controller can change compres sor speed more according to changes in the actual tem perature Although not the case this may by some people be experienced as instability due to the audible changes in the compressor speed In Model codes F1 F3 and F4 the frequency inverter is monitored for alarms and limited against overload using the status information from the frequency inverter via the serial bus communication 7 5 2 Control mode On Off single compressor Like in inverter operation the output from the PI controller is used to determine whether the compressor is stopped or running full load Relay no 1 is used for start and stop of the compressor Capacity step Relay 1 Step 0 Off Step 1 On Capacity Step 1 Full load Capacity request 5 30 100 Capacity Min Capacity Max Capacity Max Step I Step 0 Step 1 gt Increasing cooling demand 4 Decreasin
69. in Range 02 5 0 Default 1 0 Neutral zone Neutral band 9C Range 0 0 K 10 0 K Default 0 0 K Setpoint adjustment External setpoint adjustment Off 4 20mA 0 10V Default Off Adjustment offset External setpoint adjustment Mainly for coldstores Page 43 9 16 Installer Fl step 1 Setup of the second step of the controllers gear box Single compressor mode only See section Capacity control Capacity min Inverter min frequency Capacity max Inverter max frequency Inverter min start freq Inverter max start freq Runtime start Runtime min Min start interval Valve open time Capacity min Minimum capacity for this step 0 100 Default 5 Inverter min Frequency Minimum compressor speed EI Range 25 Hz 87 Hz Default 25 Hz Capacity max Maximum capacity for this step Range 0 100 Default 100 Inverter max frequency Maximum compressor speed Range 25 Hz 87 Hz Default 87 Hz Inverter min start freq Minimum compressor Fl frequency during the start process Range 25 Hz 87 Hz Default 25 Hz Inverter max start freq Maximum compressor Fl frequency during the start process Page 44 Range25Hz 87 Hz Default 50 Hz Runtime start Run time with the frequency between Inverter min start freq and Inverter max start freq Range O 60 sec Default 10 sec R
70. in i e a cold store In the Installer Basic setting Control mode menu the temperature control mode can be Suc Pressure or Room temp The Fan operation mode is default Eco It can be set to LowSound if the unit is placed in dense populated areas to reduce the sound pressure from the fans This will impact a little on the energy efficiency If the sound pressure should be reduced at specific periods due to surroundings the fan mode can be toggled between the two settings through a digital input or the week program Set the Mode to On to start the unit If the external release signal is used the unit will start when this signal is applied to CN21 11 On Off ACIN6A High voltage digital input Page 11 gt Optimizing energy use Through the use of a frequency inverter the compressor speed can be adapted to the actual cooling demand The use of external input can raise the setpoint during periods with low load Please see section Alternative setpoint 2nd Setp The week timer can be used to trim the setpoint to regularly changes in cooling demand with up to 4 changes per day The condenser fans are speed controlled 1096 100 and the condenser temperature is adjusted according to the ambient temperature and thereby minimizing the total power usage of the fans and the compressor Please see also the section Heat recovery for reusing heat generated by the compressor Page 12 6 HOW tO This section sh
71. ings handling Change to and from daylight saving time can be done manually or automatically by the controller The field Installer Basic set Daylight saving time can be either Manual or Auto In manual mode the controller does not change the time In automatic daylight saving mode the controller follows the Central European Daylight saving time 716 Digital inputs To expand the functionality of the application two digital inputs can be configured for four different functionalities 2nd Setp LowSound Winterst and Heat Rec A digital input can only be used for one function and is then not available for other functions 7 16 1 Alternative setpoint 2nd Setpoint This input could for example be connected to a signal when the shutters of the cabinets are being shut for the night Page 28 If enabled an active low signal on the attached digital in put will make the controller switch to the second setpoint setting in Installer Settings Digital inputs 2nd setpoint as long as the signal is low On the main menu the status of the 2nd setpoint function is illustrated by the two icons The function is enabled but the corre p sponding digital input is not activated i2 7 16 2 Force LowSound mode The function is enabled and the digital input is activated If enabled an active low signal on the attached digital in put will make the controller switch the fans to LowSound mode as long as the signal
72. ller Service Factory reset to Yes After a short time the controller will reset all changeable values to default settings 7 23 Alarm handling Alarms from the refrigeration system are sent to the con troller through HW interfaces like switches temperature sensors pressure transmitters etc The controller alarm system takes care about the alarm messages display and protects the system from damage by reducing capacity or stopping the compressor The BMS signal is turned On when the unit is powered on and has no alarms else it is turned Off Since the BMS signal is on a shift relay both the NO Normal Open and Technical manual un the NC Normal Closed signal can be used See Alarm system and trouble shooting section for more details 7 24 Restart handling If an error occurs there are different restart strategies depending on the error Depending on the severity of an error the LMC340i controller may restart the unit again to see if the error has disappeared The default restart time is 15 min The following Critical alarms will make the unit stop without more restart attempts C602 Oil Pres C605 FAN OH C123 PI Short 3rd time C600 High pressure 3rd time C621 C622 Fault on both compressors in dual com pressor mode With other critical alarms a restart attempt will be done with variable restart times For C600 Hi Pres the restart time is 2 default time For C123 P1 Short the r
73. lt Max Min Default Max Min Default Max Default Min Default Max 45 C 45 C 13 C 70 C 130 C 140 C 5 bar 22 bar 22 bar 2 0 bar 10 0 bar 3 5 bar 1 8 bar 10 C 57 C 63 C 30 C 30 C 25 C 70 C 130 C 140 C 5 bar 25 bar 25 bar 2 0 bar 10 0 bar 3 5 bar 1 2 bar 10 C 75 C 80 C 45 C 45 C 7 C 70 C 130 C 140 C 5 bar 22 bar 22 bar 2 0 bar 10 0 bar 3 5 bar 2 1 bar 10 C 50 C 55 C 35 C 35 C 0 C 70 C 130 C 140 C 5 bar 23 bar 23 bar 2 0 bar 10 0 bar 3 5 bar 1 8 bar 10 C 57 C 60 C Parameters for refrigerants R407C RAO7F R410A and R507A KREE REENEN User Room setpoint 20 0 C 30 0 C 25 0 C 40 0 C Installer Basic Settings Setpoint Default 2 0 C 2 0 C 2 0 C 2 0 C Installer Settings Digital input 2ndSetp Max 22 5 C 10 0 C 22 5 C 17 5 C Min 25 C 35 C 30 C 45 C Installer Settings WeekProgram Setpoint Default 2 C 2 C 2 C 2 C Max 22 C 0 C 22 C 17 C Min 10 C 10 C 10 C 10 C Installer Settings Fan control Setpoint Default 30 C 30 C 30 C 30 C Max 62 C 60 C 62 C 55 C Min 15 C 15 C 15 C 15 C Installer Settings Fan control Setpoint min Default 30 C 30 C 30 C 30 C Max 62 C 60 C 62 C 55 C Min 10 C 10 C 10 C 10 C Installer Settings Fan control Economy Setp
74. ms Number of limiter activations per day before an alarm is set active Relay action Tc Tdis Current Relay action To Relay action Tc Tdis Current Allowed number of alarms without activating the CTS alarm relay Valid for Condensing temp max Discharge gas temp max and FI current limiters Range O 999 O Off Default 10 Relay action To Allowed number of alarms without activating the CTS alarm relay Valid for Evaporating temp min limiter Range O 999 O Off Default Off Page 49 9 24 Installer Digital input Digital input 1 and 2 selectable functions DINI and DIN2 A function can only be selected for one digital input and is not selectable for the other digital input Digital input 1 2nd Setp Digital input 2 Winterst 2nd setpoint 8 0 C Digital input 1 Selectable functions Off 2nd setp LowSound Winterst Heat rec Default 2nd setp Digital input 2 Selectable functions Off 2nd setp LowSound Winterst Heat rec Default Winterst 2nd setpoint Only visible if function is selected on one of the digital inputs Closed contact means 2nd setpoint is active Range as normal setpoint Default 8 09C Heat recovery fan start Only visible if function is selected Setpoint for maximum allowed condensing temperature before activation of fans Closed contact means Ambient compensation is turned off condenser fans starts
75. must be observed Power connection to the compressor motor is different from with to without frequency inverter Consult the manual for the compressor for correct connection as the motor may else be permanently dam aged due to overvoltage A setting in the LMC340i controller must be changed to enable On Off operation In Installer Service No Fl emergency mode the default No must be changed to Yes 18 2 Fan controller In case of fan controller malfunction or operation without a O 100 fan speed controller the LMC340i can use PWM operation of the fan motors instead The most stable condenser temperature will be with a stepless fan speed controller From O to 50 fan speed only Fanl relay output will be used in On Off operation to achieve an average fan speed Above 50 fan speed Fanl relay is always On and only Fan2 relay will be used for On Off operation In Installer Service Fan controller used the default Yes must be changed to No for activating PWM operation of the fan motors Page 82 19 Expansion options SE B2 can be used for protection the compressor against overheating Technical manual un 20 Networking Communication from the Internet or intranet is possible through the Ethernet connection on the LOM320 Ethernet board Please see the User manual for the LOM320 Ethernet Module Webserver 2 Firmware update Firmware update is done from Lodams Multi Tool LMT This will update the software
76. n 2 OH e 3 ACIN2A NB 4 ACIN2B SCPR1 Safety chain CPR1 e 5 ACIN3A 4 NB 6 ACIN3B c N SCPR2 Safety chain CPR2 2 M e 7 ACIN4A 1 NB 8 ACIN4B HP switch x e 9 ACINSA NB 10 ACINSB T Unit On Off External release J ei 11 ACINGA NB 12 ACINGB Modbus Master controller G C 2 Data N 3 Data 3 4 12dc 2 Ethernet LAN R 3 eub Page 60 Technical manual LMC340i 230VB NB Output Display heater LMC340i n SEE RREZO NNZO 12Vdc 1 Data24 A Data2 5 Gnd 6 0 10V A Gnd 3 0 10V 5 Gnd 6 REIN RE4OUT RE3IN RE3OUT RE2IN RE2OUT RE1IN RE1OUT EEGENEN RESIN RESOUT NC 2 RESOUT NC 3 m REGIN RE6OUT RETIN RE7OUT RESIN RE8OUT RESIN RE9OUT EEGENEN 0 10V 1 Gnd 3 24Vac Display RS485 CNI 12Vde Data Data Gnd o 1 2 3 4 47 EN Row LUP200 Remove jumper if 1 12VdcOut C using external 2 Gnd N power supply 3 12Vddn 2 K1 CPR 2 capacity HP switch Y G CO K2 CPR2 ES Liquid line valve CO K1 CPR1 1 3 i F4 F3 0 10V Fan speed 0 10 V 1 EE L1 L2 L3 Page 61 11 6
77. n the combined unit capacity as well as the individual compressor operation Page 23 In the range from O to 25 capacity the unit must select between stopped or running with one compressor at half capacity From 25 to 100 the unit will modulate one or both compressors to meet the requested capacity with no significant gaps Output Compressor A B Variable 75 100 KS Compressor A B Variable 50 75 ES Compressor A Variable 25 50 Compressor capacity gt Compressor A Fixed 0 25 25 50 75 100 Time delay gt le Start stop hysteresis 75 100 gt Step 0 1 Step 2 Step 3 7 5 6 Dual compressor with one Fl and one On Off compressor One compressor is speed controlled by the Fl and the second compressor is On Off controlled For optimum performance the compressors should be of equal size This gives an almost linear regulation from 25 to 100 capacity The difference from the actual temperature to the wanted setpoint is expressed as a capacity request from O to 100 where 100 is full compressor speed with both frequency inverter and On Off compressor Page 24 The Fl is always started first and the On Off compressor starts second gt Compressor with FI S gt On Off Compressor Step 0 Step 1 Step 2 fe Pg uJ EH Capacity A 96 Max Min Com
78. nv F3 2 1 6 2 2 1 6 2 1 2 2 0 192 168 001 180 255 255 255 000 192 168 001 001 00 1F 79 00 02 BO No Yes Off Hz Yes No Shows the actual compressor control configuration Page 51 Controller LMC300 V Software version of the LMC340i controller Display LUP200 V Software version of the LUP200 display Eth Board LOM320 V Software version of the LOM320 web server board IP Address Network IP address of the optional LOM320 web server board The IP address can be changed to the required IP address for the site Netmask Network mask of the optional LOM320 web server board The netmask can be adjusted to fit the network setup Gateway 1 Network IP address of the gateway the optional LOM320 is connected to No Fl emergency mode Switch to emergency mode if the FI has a fault and unit must continue to operate Select No and the compressor will run in On Off opera tion using PWM modulation Yes No Default Yes Remember to rewire power connection to the compres sor to avoid motor damage if it is used for emergency mode operation Fan controller used If set to No the fans will be operated in emergency mode full speed in PWM modulation Yes No Default Yes Remember to rewire so wiring is without the use of the fan controller Psuc fail Fl speed If the suction pressure sensor should fail a fixed Fl speed can be set There is no monitoring of the
79. o separate maximum condenser temperatures for Eco and LowSound fan modes Economy setpoint max and LowSound setpoint max Above this setting the fans are running at full speed Depending on the fan controller there may be a minimum speed of the fans This is set in Fan capacity min Fan capacity max can be set to a lower value than 100 if there is no more speed change above a certain level If this is not adjusted to actual behaviour the wanted fan speed will not reflect the actual speed In Settings Basic settings the fan mode is permanently set to either Eco or LowSound For temporarily changes please see sections Week program and Force LowSound mode 7 9 Frequency inverter control The frequency inverter Fl is controlled and monitored through a bus communication link for Inv F1 Inv F3 and Inv F4 control modes Control is start and stop commands and the wanted speed of the compressor motor Se n 2 25 20 a0 50 C bel 8 H ai 100 Hz Higher max capacity of compressors when using frequen cy inverters The controller is monitoring the status information from the Fl about temperature current warnings and critical error Temperature and current are used for limiting the com pressor speed for avoiding overload of the compressor for example at start up in ambient temperatures etc The communication through RS485 is at the moment specific for the Danfoss FCM300 series and Leroy Somer Varmeca 30 series Other inver
80. oint Default 45 C 45 C 45 C 45 C Max 62 C 60 C 62 C 55 C Min 10 C 10 C 10 C 10 C Installer Settings Fan control LowSound Setpoint Default 50 C 50 C 50 C 50 C Max 62 C 60 C 62 C 55 C Min 10 C 10 C 10 C 10 C Installer Settings Limiter control Tc max Default 62 C 60 C 62 C 55 C Max 62 C 60 C 62 C 55 C Min 25 C 35 C 30 C 45 C Installer Settings Limiter control To min Default 25 C 35 C 30 C 45 C Max 13 C 0 C 13 C 8 C Min 70 C 70 C 70 C 70 C Installer Settings Limiter control Hotgas max Default 130 C 130 C 130 C 130 C Max 140 C 140 C 140 C 140 C Min 5 bar 5 bar 5 bar 5 bar Installer Settings Limiter control dP max Default 23 bar 23 bar 34 bar 23 bar Max 23 bar 23 bar 34 bar 23 bar Page 33 KREE EE Installer Settings Limiter control dP min Installer Settings Winter start dP min Installer Settings Digital input Heat rec 8 2 Suction pressure control mode Parameters for refrigerants R22 R134a R404A and R407A Default Max Default Min Default Max 2 0 bar 10 0 bar 3 5 bar 1 7 bar 10 C 57 C 62 C 2 0 bar 10 0 bar 3 5 bar 1 8 bar 10 C 57 C 60 C 3 bar 10 0 bar 5 5 bar 2 8 bar 10 C 57 C 62 C 2 0 bar 10 0 bar 3 5 bar 2 2 bar 10 C 50 C 55 C KEE Installer Basic Settings Setpoint Installer Settings
81. on of menus for adjusting operating parameters Week program Capacity control comp Inverter compr step 0 Inverter compr step 1 Fan control Limiter control Winter start Oil return V M M VV VV VOM Limiter alarms Digital inputs gt Oil heater Active UnitOn Page 41 Oil heater The oil heater crank case heater can be operated in two modes In Active UnitOn the oil heater is On when the compres sor is stopped In Ext Release the oil heater is On when the compressor is stopped and the external On Off release signal is On 9 12 Installer Settings Dual compressor mode Collection of menus for adjusting operating parameters Week program Capacity control comp Cap Limits Fan control Limiter control Winter start Oil return Limiter alarms Digital inputs V M M M oM oM VV VOM Liquid carry over detection Oil heater Active UnitOn Oil heater The oil heater crank case heater can be operated in two modes In Active UnitOn the oil heater is On when the compres sor is stopped In Ext Release the oil heater is On when the compressor is stopped and the external On Off release signal is On 9 13 Installer Week program Menu for the week program timer There can be up to four individual activations per day The menu shows the default settings for all days when in suction pressure temperature control mode Use the left and right arrows to move to the previous next day P
82. ontrol Lodam is one of the most experienced you can turn to For more than four decades we have developed produced and implemented electronic solutions dedicated to optimising applications like Compressors Condensing units Heat pumps Air conditioning Refrigerated truck and trailer Reefer containers We know the importance of reliable energy efficient operation and constantly push techno logical boundaries to bring you the most innovative and forward thinking solutions As part of the BITZER Group we are backed by one of the world s leading players in the refrigeration and air conditioning industry This alliance provides us with extensive network and application knowhow and allows us to stay at the forefront of climate control innovation And to help ensure comfortable surroundings for humans and reliable protection of valuable goods anywhere in the world For more information visit www lodam com Lodam electronics a s K rvej 77 Tel 45 7342 3737 6400 S nderborg Fax 45 7342 3730 Denmark lodam lodam com 28 01 2015 Contents are subject to change without notice
83. ontrol mode 18 Compressor protection 17 Condenser control 25 Connection 55 Control mode On Off 20 Control mode Unloader 21 D Datalog 30 84 Day light savings 28 Definitions 8 Digital input 28 50 Drawings 75 E Emergency operation 82 Energy use 12 Expansion options 82 External setpoint adjustment 25 F Factory settings 15 Fan mode 15 FAQ 76 Firmware update 83 Frequency inverter control 26 Functions 17 H How to 12 I I O list 69 L Language 12 Limiter alarms 27 Liquid line valve 29 M Menu Basic settings 41 Capacity control 43 Digital input 50 Display menu 39 Fan control 46 FI step O 43 FI step 1 44 Installer menu 41 Limiter alarms 49 Limiter controller 47 Limter counters 39 Main menu 37 Manual mode 53 Oil return 48 Overview 36 Password menu 38 Service menu 51 Time setting 40 User Alarms 40 User Menu 38 Week program 42 Winter start 48 Mounting dimensions 75 N NTC temperature voltage 87 0 Oil handling 26 Oil return 16 48 P Parameters 32 Password 30 Q Quickguide 11 R Refrigerant 13 Room temp control mode 32 54 S Service function 29 Setup 32 Sound reduction 18 Standards 76 Suction pressure control mode 54 T Technical data 68 Temperature control mode 14 Temperature setpoint 14 Trouble shooting 77 W Week program 28 Page 89 26 Notes Technical manual LMC340i Innovative and energy saving climate control When it comes to climate c
84. ording to the installation needs Technical manual un FUNCTIONS 71 Compressor protection A compressor has a safe area envelope where it can operate safely The controller monitors a set of parameters and will reduce compressor frequency or increase fan speed if one of the parameters will bring the compressor out of this safe area 60 1 19A R404A t C dea at lt 2ok dein 20k R507A 50 40 30 t 20 C 20 50 A0 30 20 40 t PC 10 Sample compressor safe area application limits If suction pressure becomes too low compressor speed is reduced or stopped If discharge pressure is becoming too high first the fan speed is increased and if this is not enough the compressor speed is reduced If the difference between suction pressure and discharge pressure is too low the fan speed is lowered as there is a needed minimum pressure difference across the compressor In Installer Settings Limiter Control the limit values for safe operation can be set The settings are for Bitzer compressors They are adjusted depending on the select ed refrigerant and compressor See Limiting functions Limiter control When operating long time at low compressor speed the oil may stay in the evaporator s due to low flow speed In Installer Settings Oil return a function for autornati cally returning the oil can be enabled Oil return can be set to Off Auto or Day Default is Off Auto means t
85. ored alarms events and logs An alarm is written to the datalog when the alarm is added to the alarm list on the user panel See section 17 Alarm system and trouble shooting for a list of possible alarms causes and troubleshooting Data are collected continuously An event is a change in the system state initiated from a user or external input The following events are stored with a timestamp yymmddhhmm Power on of the unit Startup when set to ON mode Stop when set to OFF mode Manual mode Database reset reset to factory settings Compressor emergency mode Fan emergency mode Suction sensor emergency mode A log is a collection of data recorded at the same time The date and time is stored as yymmddhhmm The log contains the following data To C Tc 9C Page 30 Tdis 9C FI current A Fl freq Hz fan speed actual limiter 0 67 Tcoldstore C Setpoint C Tambient C Ext setpoint adjust C Fl temperature C Actual capacity Runtime hours h Unit running HP switch Oil failure Compressor overheat Fan overheat Fan2 overheat Temp C Tsuc 7 21 Reset of passwords By short circuiting digital input DIN3 to GND for more than 3 seconds passwords for the user panel and the webpage are reset to default values 7 22 Reset to factory settings All settings can be reverted to factory setting by setting the field Insta
86. ows how to change settings which are commonly used 6 1 Change language This is a User setting Enter the user password and select the User menu Password Refrigerant Setpoint Status Alarm Open the user menu lo c Language Mode Display Alarm list Date and time New user password Press Enter to edit the language field and switch between English and the other languages German French Finnish Spanish Russian and Turkish with the arrow keys Acknowledge your choice with Enter Technical manual un 6 2 List alarms This is a User setting Enter the user password and select the User menu English On Alarm list Date and time New user password Scroll to the Alarm list line and press Enter 106 TdisOpen A WARNING Here a sample alarm is listed The menu can show up to 16 alarms Scroll to an alarm and acknowledge it with Enter Only alarms starting with lower case axxx Wax or cxxx can be acknowledged and cleared from the list See the Alarm section for explanation of the possible alarms causes and how to solve the cause of an alarm 6 3 Change refrigerant If the default settings must be changed enter the installer password and go to the Installer menu section e n Password User Refrigerant Setpoint Status Q Alarm Select the Basic settings menu to get the menu below R404A Control mode Suc Pressure Suction pressure se
87. pressor Capacity Cap Cap Cap Cap 100 Request Min Max Min Max Step 1 Step 0 Step 2 Step1 When both compressors are stopped the compressor with Fl will be started with Inverter min frequency when the calculated capacity based on cooling demand is higher than Capacity Max Step O the speed will be increased up to Inverter max frequency if the capacity need continues to increase When this is not enough the On Off compressor is started and the speed of the Fl is reduced to Inverter min fre quency and the FI speed is increased up to Inverter max frequency Variations in cooling demand are handled by adjusting the Fl speed If the requested capacity is below CapMaxl the Fl speed is kept but the capacity request is still being reduced When the requested capacity is below CapMin2 the On Off compressor is stopped and the Fl speed is set to Inverter max frequency Below CapMaxO the Fl speed is kept until the requested capacity is below CapMin where the FI is stopped 7 6 Setting the setpoint The controller is flexible with the setpoint setting and can use a combination of a static setpoint and dynamic setpoint control depending on the demands at the installation This functionality is available in both Suction pressure mode and Room temperature control mode The setpoint set on the user panel is used for installations where no changes in the setpoint are needed Technical manual un If periodic changes in the setpoint are
88. r is in 24h format Digital input 1 2nd Setp Digital input 2 Winterst 2nd setpoint 8 0 C Technical manual un 9 9 Installer menu Basic settings Settings Service New installer password Basic settings Set customer settings Settings Set operating parameters Service Access to the service menus New password Seta new password for the installer section 9 10 Installer Basic settings Refrigerant R404A Control mode Suc Pressure Suction pressure setp 10 0 C Fan operation mode Eco Daylight saving time Manual Refrigerant Refrigerant selection R22 RI34a R404A R407A R407C R407F R410A R507A Default is R404A Control mode Temperature control mode Suction pressure or Room temperature mode Default is Suction pressure Suction pressure setp Temp setp cold store Set the setpoint for Room temperature or Suction pressure control mode Maximum limits 459C to 30 C but also limited based on selected refrigerant Default 109C in Suction pressure mode 2 C in Room temperature mode Fan mode Set the regulating mode of the fans Eco or LowSound LowSound reduces the fan speed to reduce the sound from the fans Default is Eco Daylight saving time Handling of daylight saving time shift by the real time clock Manual or Auto MET Default is Manual 9 11 Installer Settings Single compressor mode Collecti
89. r used from Yes to No The field Psuc fail Fl Speed is for emergency cases where the suction pressure transmitter is defect and a spare is not available The parameter defines the fixed speed of the compressor Since there is no monitoring of the suction pressure this setting must only be used under surveillance It gives the possibility to still have some cooling capacity even though the controller can t adjust the speed auto matically without the controlling sensor When the field User Mode is set to Manual the fields in the Manual menu can be used for testing the outputs of the controller during service For single compressor with frequency inverter the field Inverter freq LP trans off can be set to O Hz off or in the range 25 to 87 Hz Provid Page 29 ed that REI Contactor K1 is set to On the compressor should be running with the selected speed 7 20 Datalogger At regularly intervals data from the database are stored in the controllers flash memory The memory is non vola tile and needs no battery backup With the default settings the oldest data will start to be overwritten after approx 5 months This is a compromise between detailed logging data and datalog space The stored data is uploaded from the controller using the LMT PC software package LMT can show detailed data and also provide graphical views of the data Please see section Downloading the datalog from the controller In the datalog are st
90. re until the calculated capacity is below Capacity Min Step 1 and the compressor is then stopped Page 19 Below is a sketch of how the capacity regulator will work in anormal operation where the load and the condensing unit size are well matched Variable capacity need Equipment matches load Max H speed Actual temperature Neutral ode FI speed Min FI speed The Neutral Zone is shown for reference but it is not recommended for use with a Fl since the speed of the compressor is constantly being adjusted via the Fl speed with a resolution of 0 1 Hz Using the Neutral zone will only ensure the capacity is never exactly on the required level On the sketch below the condensing unit is oversized or the load is momentarily much too low leading to too many off periods since even minimum speed is still giving too much capacity Low capacity need Many Off periods Equipment is oversized Max FI speed Actual temperature Setpoint X J wX 7xXzZ wz 4 X E FI speed Min H speed The Gain parameter is set conservatively at 5 giving a good response to changes in actual temperature but without giving a nervously reacting system where many changes to the FI speed may disturb neighbours Setting the Gain at a too high level may lead to instability Delta max may then also have to be adjusted The Integral time is set at 120 seconds to give a smooth operation with st
91. s Lists the number of times today every single limiting func tion has reached its maximum limitation setting meaning the unit has almost reached its application limit Counters are reset at midnight Page 39 Condensing temp Counter Discharge temp Counter Inverter current Counter Evaporating temp Counter Discharge temp OH Counter Suction temp OH Counter Condensing temp Counter Shows number of condensing temperature limiter actions for today Discharge temp Counter Shows number of discharge gas temperature limiter actions for today Inverter current Counter Shows number of inverter current limiter actions for today Evaporating temp Counter Shows number of evaporating temperature limiter actions for today Discharge temp OH Counter Shows number of discharge temperature overheat limiter actions for today Suction temp OH Counter Shows number of suction temperature overheat limiter actions for today Page 40 9 7 User Alarms 106 TdisOpen A WARNING Show active or unacknowledged alarm and warnings If the first letter of the alarm number is in capital the alarm or warning is still active i e W104 If the first letter is in small capital like w104 it can be acknowledged with the Enter key and will then be deleted from the list Default is No alarm 9 8 User Date and time setting Set the date and time hour and minute in the real time clock of the controller Hou
92. s are only visible if the suction Tempera ture sensor has been enabled in the service menu Multiple det max count Discharge line detect Dis OH min lim Discharge start delay Dis single det time Dis multiple det time Suction line detect Suc OH min Lim Suction start delay Suc single det time Suc multiple det time Suction line detect Liquid carry over function for the suction line On or Off Default Off Suc OH min lim Minimum required over heat temperature Range 20K to 20 0 K Default 5 0 K Suction start delay Compressor runtime before detection starts Range 1 min to 60 min Default 15 min Suc single det time Time to stay below the minimum overheat temperature before a long overheat event is detected Range 1 min to 25 min Default 5 min Suc multiple det time Time to stay below the minimum overheat temperature before a short overheat event is detected Range 5 sec to 100 sec Default 10 sec 9 26 Service menu The Service menu shows the configuration of the unit Project Model Code Controller LMC300 V Display LUP200 V Eth Board LOM320 V IP Address Netmask Gateway MAC address No Fl emergency mode Fan controller used Psuc fail Fl Speed Suction gas temp sensor Factory reset Setup guide LOM MB config Manual settings Digital I O Display Project This is always Standard Model Code Standard I
93. s at 20 C and normal brightness 24 VAC max 150 mA thermo controlled 6 buttons English German French Finnish Spanish Russian and Turkish 8 pcs 4 mm screws Max screw in depth 6 mm Max tightening torque 3 Nm Note Front is IP65 if the LUP200 is mounted with the supplied gasket in a metal sheet cabinet of at least 1 5mm thickness and level accuracy better than 0 1 mm over the Note2 Maximum cable length between the LMC320 and the LUP200 is 100m Note The maximum cable length for a NTC temperature sensor is 30m The cable used for extension should be screened and twisted pair Signal cable should be routed so the influence from the power cables is minimized Page 68 Technical manual LMC340i 13 IZO list for the LMC340i Condensing Unit controller 13 1 Single compressor configuration Type A D S P Analogue Digital Serial Power O B Input Output Bidirectional 1 0 list LMC340i Condensing Unit controller Single compressor configuration Description Fan 1 OH DI ACIN1A NC Klixon for fan motor 1 overheated CN21 1 230 VAC 15 96 50 60Hz min 5mA Fan 2 OH DI ACIN2A NC Klixon for fan motor 2 overheated CN21 3 230 VAC 15 96 50 60Hz min 5mA Cpr OH DI ACINSA NC Compressor overheated Signal from CN21 5 compressor protection module 230 VAC 15 96 50 60Hz min 5mA Low oil level DI ACIN4A NC Compressor oil level alarm Signal from compressor protection module CN21 7 230 VAC 15 50 60Hz
94. st The contents of this manual are subject to change without notice Lodam electronics holds the copyright to this user s manual The user shall follow any instructions given in this user manual entirely and not only partly Any non following of this user manual result in exclusion of all warranties guarantees and liabilities CopyrightO 2015 by Lodam electronics a s All Rights Reserved Disposing of the parts of the controller INFORMATION FOR USERS ON THE COR RECT HANDLING OF WASTE ELECTRICAL AND ELECTRONIC EQUIPMENT WEEE In reference to European Union directive 2002 96 EC issued on 27 January 2003 and the related national legislation please note that 1 WEEE cannot be disposed of as municipal waste and such waste must be collected and disposed of sepa rately 2 The public or private waste collection systems de fined by local legislation must be used In addition the equipment can be returned to the distributor at the end of its working life when buying new equipment 3 The equipment may contain hazardous substances the improper use or incorrect disposal of such may have negative effects on human health and on the environment 4 The symbol crossed out wheeled bin shown on the product or on the packaging and on the instruction sheet indicates that the equipment has been intro duced onto the market after 13 August 2005 and that it must be disposed of separately 5 In the event of illegal disposal of electric
95. st purposes 0 2 5 87V Off 25 87Hz O 10V 5mA Not galvanic isolated N A N A RS 485 cable for Fl communication Half duplex max 100m twisted pair cable grounded shield shunt capacitance 50pF m 1000 resistance AWG24 2 1200 termination Receiver impedance gt 12k0 GND Data Al Data Bl Technical manual LMC340i 1 0 list LMC340i Condensing Unit controller Single compressor configuration Description Display S Data2 RS 485 cable for display communication LUP200 LUP200 CN7 4 Half duplex max 100m twisted pair cable 2 1200 termination Data2 Receiver impedance gt 12kO CN7 5 12V I limit approx 100mA GND GND CN7 6 Data2 A2 RS485 Data2 B2 Ethernet amp Ethernet 10 100 Mbit TIA EIA 568 CN3I Modbus S Data RS 485 cable for Modbus communication with external controller External master controller CN32 3 Half duplex max 100m twisted pair cable 2 1200 termination Data2 Receiver impedance gt 12kQ CN32 2 12V I limit approx 100mA GND GND CN32 1 Data A RS485 Data B Fan control power P 12PWR Power for fan speed controller CN2 1 12V max 500 mA GND CN2 2 K1 Compressor DO REIOUT Relay for compressor ON FI power CN14 8 Max 10A 9250VAC 10A 93OVDC LLV DO RE2OUT Relay for solenoid valve in liquid line Liquid line valve CN14 6 Signal that oil return function is active Max 10A 9250VAC 10A 93OVDC Oil heater DO RE30UT Relay for oli heater CN14
96. sure temperature control Display cabinet 1 Display cabinet 2 Display cabinet 3 Page 54 10 2 Room temperature control mode The temperature in a coldstore can be controlled by the LMC340i Condensing unit controller Condensing unit Room temperature control Coldstore Technical manual LMC340i Connection 11 1 Single compressor configuration Fan control power 12VBAT GND ANOUTO ANOUT1 GND ANOUT2 5 ANOUT3 e GND Fan speed 0 10V Fl speed 0 10V 1 TEMP1 2 TEMP2 3 GND TEMP3 TEMP4 GND TEMPS TEMP6 GND Tamb TEMP7 TEMPS GND TEMP9 TEMP10 GND TEMP11 GND Ext Setadj 12VU LUP200 display 4 GND Datat A1 a Data1 B1 Data2 A2 5 Data2 B2 CN21 Fant OH o ei Fan2 OH gl 9 CPR OH el 49 5 Oil level signal 9 7 KLS HP Switch el fio Unit ON OFF Run _ N 41e 12 CN22 230 Vac 9 Mian el 8 Mfan2 el 9 Mcpr 9 6 9 Compressor ready Le EE 8 ACIN1A ACIN1B ACIN2A ACIN2B ACIN3A ACIN3B ACIN4A ACIN4B ACINSA ACINSB ACINGA ACINGB REGIN RE6OUT RE7IN RE7OUT RE8IN RE8OUT RESIN REQOUT KIK KI L LMC 3401 Power supply 12 24Vac 15 30Vde FI power 230Vac LLV Oil heater CPR protect 3 CTS Alarm
97. t 50 Hz Runtime Run time with the frequency between Inverter min start freq and Inverter max start freq Range O 60 sec Default 10 sec Min start interval Restart timer Minimum time since last start Range O 20 min Default 5 min Valve open time In room temperature control mode Time liquid line valve Opens to raise suction pressure Range O 30 sec Default 10 sec Page 46 9 19 Installer Fan control Condenser control Ambient compensation Uncomp Setpoint Ambient temp diff Stop hysteresis Proportional band Start speed Delta max Setpoint min Economy setpoint max LowSound setpoint max Fan capacity min Fan capacity max Ambient compensation Use ambient compensation On Off When set On the speed of the condenser fans is adjusted to maintain a certain temperature difference between the condenser temperature and the ambient temperature Default On Uncomp Setpoint Setpoint for condenser temperature if ambient compen sation is off Line only visible if Ambient compensation is set to Off Full range 109C 80 C depends on refrigerant Default 30 C Ambient temp diff Ambient compensation difference Range 0 C 60 C Default 5 09C Stop hysteresis Stop hysteresis Added to ambient temp diff Range O9C 60 C Technical manual un Default 3 09C Proportional band Span in C from Fan capaci
98. temp Fan capacity 45 96 Compressor run time Limiter counter per day Status Temperature control mode Suc pressure Room temp Suction pressure Suction temperature saturated temperature based on pressure Room temperature Show actual room temperature Line is only visible in room temperature control mode Ambient temperature Ambient temperature Condensing temperature Condensing temperature Discharge gas temp Hotgas Tdis temperature Suction temperature Suction line temperature Only visible if Suction temperature sensor has been enabled in the Service Menu Superheat temperature Superheat temperature Only visible if Suction temperature sensor has been enabled in the Service Menu Compressor frequency Compressor frequency in Hz Active limiter Show actual capacity limitation function None High Tc Hotgas High Tfi dP Max To Min Fl Curr Suction pressure setp Temp setp cold store Suction pressure or Room temperature setpoint Setpoint condens temp Condenser temperature setpoint when ambient com pensation is disabled Fan operation mode Actual fan mode Eco or LowSound User select or through activating a digital input Fan capacity Actual condenser fan setpoint 10 min to 10096 max Compressor runtime Run time in hours Limiter counter per day Menu with limiter function counters total per day 9 6 User Limiter counter
99. ter temperature is active Lim dP The limiter for pressure difference across the compressor is active Lim Psuc The limiter for minimum suction pressure is active Lim Ifi The limier for maximum frequency inverter current is active NO FI There is no communication with the frequency inverter Psuc Emerg The unit is running in emergency mode without Psuc pressure transmitter Manual The unit is in manual mode The following icons can be visible on the main menu If the alarm icon is flashing one or more alarms are active if the icon is steady there is an unacknowledged alarm but no active alarms The 2nd setpoint function is enabled 2 but the corresponding digital input is not activated The 2nd setpoint function is enabled and activated The force LowSound function is enabled SCH but the corresponding digital input is not activated a The force LowSound function is enabled e and activated Page 37 The forced Winter start function is enabled but the corresponding digital input is not activated The forced Winter start function is enabled and activated The heat recovery function is enabled but the corresponding digital input is not V V activated The heat recovery function is enabled and activated The week program is active B NC VWV V 9 3 Password menu Enter the password for getting access to the wanted level of information Default passwords 6 Opens access to user level informa
100. ter types on request Warnings are set short time before the Fl is entering the critical area and stops They are used for reducing the compressor speed and or increasing fan speed The main purpose is to let the compressor run as long time as possible without stops as a reduced speed in a period is better than a complete stop Page 26 Alarms are generated if a stop could not be prevented Please see the list in section 17 Alarm system and trouble shooting After an Fl alarm restart attempts are used to see if the error condition should have been solved 7 0 Oil handling It is essential for the compressor that there is sufficient lubrication of its bearings With compressors with frequen cy inverters running long periods at low speed may leave the oil in the evaporator or evaporators due to the lower speed of the gas in the piping compared to compressors running at net frequency To protect the compressor two methods are used First an oil level monitoring device can be mounted If the device does not detect oil within a certain time span after com pressor Start it will set an alarm signal relay The controller will generate alarm 602 Oil level and stop the compressor This is a critical alarm and it must be reset manually there are no restart attempts Second an Oil return function can be enabled by setting it to On default it is set Off See the settings in Installer Settings Oil return menu Oil return frequen
101. the main menu the status of the heat recovery function is illustrated by the two icons The function is enabled but the corre S sponding digital input is not activated The function is enabled and the digital input is activated 7 17 Oil Crank case heater The oil crank case heater is used for boiling out refriger ant from the oil so that there is always oil for lubrication in the compressor This costs energy so there are two modes for control of the oil heater In the Installer Settings Oil heater parameter the default setting is Active UnitOn With this setting the heater is always running when the compressor is stopped as long as there is power to the unit This is used where the condensing unit must always be available for a quick start The other setting Ext Release is for use in for example air conditioning where the unit may be off for long periods In this mode the external On Off signal must be On before the oil heater is used Still the heater is only turned On if the compressor is stopped 7 18 Forced liquid line valve opening In Room temperature control mode if the Evaporating temp min limiter function has been activated and the compressor therefore is stopped an increase in the room temperature above setpoint will not make the compressor start again In Room temperature control mode the liquid line valve is normally closed during compressor stop however this function opens the liquid line valve for a
102. time Run time ing the compressor speed to force the oil back to the Evap Limiter off compressor Oil return Winter start Oil return frequency Winter start feature On Off Oil return interval Default On Evap Limiter off Run time Start temp Difference Difference between suction pressure To and ambient temperature Setpoint Start temp Difference gt ambient temperature Oil return RangeOK 10K Oil return feature Off Auto Day Default 5K TNT Day means the Oil return function is disabled between 22 00 10 PM and 6 00 6 AM Auto means the Page 48 Technical manual un function is always enabled Off means the function is disabled Default Off The compressor speed limit during start is disabled during oil return compressor start Liquid line valve is opened during oil return in suction pressure control mode Oil return frequency Compressor frequency Fl during oil return operation Range 25 Hz 87 Hz Default 70 Hz Oil return interval Minimum time since last oil return start Range 1h 48 Default 4h Evap Limiter off Time the compressor is allowed to run with unchanged frequency even if TO is below the Evaporating temp min limiter setting Range O sec 30 sec Default O sec Run time Run time with Oil return frequency speed Range O sec 180 sec Default 30 sec 9 23 Installer Limiter alar
103. tion 7 Installer settings are now available Password Page 38 9 4 User menu The User menu is used to turn the unit On and Off display unit reading and show the alarm list Language Mode Temp setp cold store Display Alarm list Date and time New user password Language Select the language of the menu system Possible choices are English German French Finnish Spanish Russian and Turkish Default is English Mode Set the mode of the condensing unit On Off or Manual Default is Off If the unit is in Manual mode when powered off it will start in Off mode Temp setp cold store Set the setpoint for room temperature control mode Limits 45 C to 30 C Depends on the used refrigerant Default 2 C R404A Line is not visible in Suction pressure control mode Display View data from the unit Alarm list Alist with up to 16 alarms Date and time Set the date and time Technical manual un New user password New code for the user section 9 5 User Display menu Status Suction pressure Suc Pressure 0 0 C Room temperature 8 3 C Ambient temperature 7 7 C Condensing temperature 30 0 C Discharge gas temp 44 9 C 0 0 Hz 0 0 A 1 0 C 3 0 C Active limiter None 10 0 C 30 0 C Fan operation mode Eco Compressor frequency Compressor current Suction temperature Superheat temperature Suction pressure setp Setpoint condens
104. tion pressure Psuc and discharge pressure Pdis Pause time is the interval between start attempts in minutes Run time is the running time in minutes to see if a flow should be established Evap Limiter off is the time in seconds TO is allowed to become below the TO limit As there might not be a flow immediately it is important that the compressor is allowed to run a little time to generate a flow There will always be a little amount of refrigerant in the piping See also Forced winter start Winterst 712 Limiting functions Limiter control Instead of waiting for the compressor to reach the limits of its safe operating area the controller has limiting functions which will overrule the cooling demands by reducing the needed capacity in Capacity control This way the compressor will be kept running as long as possible and avoiding application situations ranges where the com pressor must to be turned off for protection A limiter functions acts by reducing the calculated capac ity request The reduction factor is linearly increased the further the monitored parameter is away from the limit The following parameters are being monitored Condens ing temp max is the maximum allowed condenser tem perature Tc When Condensing temp max is reached the capacity request starts to be reduced Evaporating temp min is used for the lowest acceptable suction pressure TO Below Evaporating temp min the capacity request is reduc
105. tp 10 0 C Fan operation mode Eco Refrigerant Manual Daylight saving time Select the line with Refrigerant with the arrow keys if it is not highlighted Press Enter key to edit the selected refrigerant and confirm your choice with another press on Enter Refrigerants R22 R134a R404A default R407C and R507A R407A R407F and R410A are only allowed for certain units This is defined at factory level and they are only visible if enabled to use Page 13 6 4 Change temperature control mode If the temperature control mode must be changed follow the description below Enter the installer password and go to the Installer menu section Select the Basic settings menu to get the menu below Van Refrigerant R404A 10 0 C Fan operation mode Eco Suction pressure setp Daylight saving time Manual Control mode Suc Pressure MW Select the line with temperature Control mode with the arrow keys if it is not highlighted Press Enter key to select either Suction pressure Suc Pressure or Room temper ature Room temp and confirm your choice with another press on Enter Page 14 6 5 Change the temperature setpoint To adjust the temperature setpoint enter the installer password and go to the Installer menu section Select the Basic settings menu to get the menu below Refrigerant R404A Control mode Suc Pressure Suction pressure setp 10 0 C SZ Fan operation mode Eco Daylight s
106. trolled Compressor equipped with ON OFF controlled unloader One CPR 0 10V One compressor with frequency inverter Frequency inverter controlled by a 0 10V signal One BITZER VARISPEED type F1 compressor Control of frequency inverter using serial bus One BITZER VARISPEED type F1 compressor Control of frequency inverter using serial bus Configured for R134a only Inv F1 Inv F1 R134a only Inv F3 One BITZER VARISPEED type F3 compressor Control of frequency inverter using serial bus Dual CPR Unl Dual compressors ON OFF controlled Both compressors equipped with ON OFF con trolled unloaders Dual CPR 0 10V Dual Compressors ON OFF controlled Both compressors with unloaders Unloaders controlled stepless 2596 10096 by a 0 10V signal Inv F4 30A One BITZER VARISPEED compressor type F4 30A Control of frequency inverter using serial bus Inv F4 50A One BITZER VARISPEED compressor type F4 50A Control of frequency inverter using serial bus One VARISPEED type F1 and one equal sized On Off compressor FI is controlled and monitored via RS485 bus com munication Dual F1 OnOff Dual F3 OnOff One VARISPEED type F3 and one equal sized On Off compressor FI is controlled and monitored via RS485 bus com munication Dual F4 30 One VARISPEED type F4 30A and one equal sized OnOff On Off compressor FI is controlled and monitored via RS485 bus com munication Dual F4 50 One VARISPEED type
107. ture and the actual temperature in a refrigerant pipe it is possible to estimate if the pipe carries gas only or a mix of liquid and gas When the saturated temperature and the actual temperature are equal the pipe contains liquid Liquid carry over can be detected on the discharge line if a suction temperature sensor is mounted liquid carry over can also be detected in the suction line Two types of events can be detected a single long event where the overheat is below the limit for a long time liquid carry over and multiple short events where the overheat drops below the limit shortly but multiple times Page 17 The detection of liquid carry over does not stop the condensing unit but the following alarms are signalled code W624 Suc Liq Warning for liquid in the suction line Active when a short event is detected and until the overheat is above the limit again C625 Suc Liq Critical alarm for liquid in the suction line Active when a long event is detected and until the overheat is above the limit again W626 Dis Liq Warning for liquid in the discharge line Active when a short event is detected and until the overheat is above the limit again C627 Dis Liq Critical alarm for liquid in the discharge line Active when a long event is detected and until the overheat is above the limit again C628 M Dis Critical alarm for multiple short liquid car Liq ry over events in the discharge line Active when t
108. ty min speed to Fan capacity max speed in Eco mode LowSound span 3 Eco mode span Range O9C 60 C Default 69C Start speed Start speed of fans The fan s must have enough start torque to start under all conditions Range 0 100 Default 30 Delta max Change in fan speed sec Range 0 10 Default 5 Setpoint min Minimum condensing temperature Range O9C 80 C Default 15 C Economy setpoint max Maximum condensing temperature 100 speed operating in Eco fan speed mode Refrigerant dependent Range 0 C 80 C Default 45 C LowSound setpoint max Maximum condensing temperature 100 speed operating in LowSound fan speed mode Refrigerant dependent 0 C 80 C Default 50 C Fan capacity min Minimum reference for fan controller Ensure there is enough torque for the fans to operate at this speed under all conditions Range 10 100 Default 10 Fan capacity max Maximum reference for fan controller Range 0 100 Default 60 9 20 Installer Limiter controller Lists settings for the capacity limiting functions Discharge gas temp max Condensing temp max Evaporating temp min Pressure diff max Pressure diff min Discharge gas temp max Maximum Hotgas Tdis temperature before capacity is decreased Depends on refrigerant Range 709C 140 C Default 1309C Condensing temp max Ma
109. untime min Minimum runtime Range 1 min 10 min Default 1 min Min start interval Restart timer Minimum time since last start Range O 20 min Default 5 min Valve open time In room temperature control mode Time liquid line valve opens to raise suction pressure Range O 30 sec Default 10 sec 9 17 Installer Capacity limits Dual compressor mode Setup for the steps of the controllers gear box for Dual compressor mode only See section Capacity control Step 0 Cap Step 1 Cap Step 1 Cap Step 2 Cap Step 2 Cap Step 3 Cap Step 3 Cap Step 4 Cap Step 4 Cap Technical manual un Step O Cap max Maximum capacity for this step before shift to next step Range 0 100 Default 25 Step 1 Cap min Minimum capacity for this step Range 0 10096 Default 0 Step 1 Cap max Maximum capacity for this step before shift to next step Range 0 100 Default 25 Step 2 Cap min Minimum capacity for this step Range 0 100 Default 25 Step 2 Cap max Maximum capacity for this step before shift to next step Range 0 10096 Default 50 Step 3 Cap min Minimum capacity for this step Range 0 10096 Default 50 Step 3 Cap max Maximum capacity for this step before shift to next step Range 0 100 Default 100 Step 4 Cap min Minimum capacity for this step Range 0
110. wer supply 3 12Vddn 2 I hi n In In I CPR 1 capacity ai 0 10V A aaa e Sege 2 2 controller al Gnd 3 Gnd 310096 CEN DH EE vie 17 li d CPR 2 capacity L 1 M 0 10V 5 Lion Unloader Al 1 0 100 vel LMC340i rn REAIN 1 HP switch LA E cl us HP E N RE3OUT A NT m 1 RE2IN 5 CJ K2 CPR2 4 RE2OUT 6 T r RELIN 7 rh Liquid line valve LA RELOUT 5 M L CJ K1 CPR1 s RESIN 1 N zu 3 RESOUT NC 2 37737 BMS alarm L__ 1 RE5OUT NC 3 T S Fc REGIN 1 LA REGOUT 2 r RETIN 3 LA_ N RE7OUT 4 r 2 RESIN 5 LA 2 RESOUT 6 Fo RESIN 7 LA RE9OUT 8 Fan speed 0 10 V EI 1 0 10V 1 S N Taa Sek 4 Y G L1 L2 13 Page 63 11 7 Wirediagram dual compressor use with Unloaders Page 64 L1 L2 L3 PE F1 Y G BUCO on vu 00S F2 230VB gt t 230Vac Tri 24Vac Power input D Prue Suction Pais owe Discharge Pressure Pressure m mm Tamb Troom D Te Uy Tae D Ext Setadj 0 10
111. ximum condensing temperature before capacity is decreased Depends on refrigerant Range 50 C 80 C Default 55 C Evaporating temp min Minimum suction temperature TO before capacity is decreased Depends on refrigerant Range 60 C 30 C Default 459C Page 47 Pressure diff max Maximum pressure difference before capacity is in creased Depends on refrigerant and compressor Range 2 0 bar 34 0 bar Pressure difference min Minimum pressure difference between suction pressure and discharge pressure Range 03 bar 6 0 bar Default 2 1 bar Default 22 0 bar Pause time Pressure diff min Minimum time since last compressor stop Minimum pressure difference before fan speed is decreased Range 5 min 12 h Default 45 min Depends on refrigerant and compressor Range 1 0 bar 6 0 bar Run time Runtime during the forced winter start Default 3 5 bar Range O min 15 min Default 2 min 9 2 Installer Winter start Winter start settings Settings must be fulfilled to release a Evap Lirniter off winter start attempt Time the compressor is allowed to run after TO falls below evaporating temp min cut out limit Range O sec 30 sec Winter start Start temp Difference Default 10 sec Pressure difference min 9 22 Installer Oil return Oil return feature settings The function is used for chang Pause

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