manualshive.com logo in svg

Danfoss EIM 336, Руководство пользователя, Страница: 2 / 17

Поделиться
Скачать
Danfoss EIM 336 Скачать руководство пользователя страница 2

Contents

Introduction ....................................................................................................................................................................................................................................................1

Application and Function overview .......................................................................................................................................................................................................3

Technical specifications ..............................................................................................................................................................................................................................4

Ordering and accessories ...........................................................................................................................................................................................................................4

Connetions ......................................................................................................................................................................................................................................................5

Configurations ................................................................................................................................................................................................................................................6

Modbus connections ...................................................................................................................................................................................................................................7

Operation .........................................................................................................................................................................................................................................................8

Parameter list ............................................................................................................................................................................................................................................... 12

Troubleshooting ......................................................................................................................................................................................................................................... 15

Finding the optimum settings ............................................................................................................................................................................................................... 15

Appendix 1.  Interactions ........................................................................................................................................................................................................................ 16

Appendix 2.  Control status .................................................................................................................................................................................................................... 16

Appendix 3.  Installation - sensors ....................................................................................................................................................................................................... 17

Warnings  ....................................................................................................................................................................................................................................................... 17

Acronyms and abbreviations used in this manual:

LOC 

Loss of charge indication

SH Superheat

MOP  Maximum operating pressure

MSS  Minimum stable superheat

T

e

 

Saturated suction temperature

P

e 

(P

o

)  Evaporator pressure

S

2

 

Evaporator refrigerant outlet temperature

S

4

 

Evaporator medium outlet temperature

OD 

Opening degree

PNU  Parameter number - is equivalent to the modbus register no. (modbus 1)

2 

DKRCC.PS.RQ0.B7.02 /520H8832  

© Danfoss A/S (AC-MCI / sw), 2014-11

Manual 

Superheat Controller EIM 336

Содержание EIM 336

Страница 1: ...ess noise The EIM 336 is the superheat controller that can be used to control the opening degree of a valve based on the superheat of the evaporator This is applicable in applications such as air cond...

Страница 2: ...allation sensors 17 Warnings 17 Acronyms and abbreviations used in this manual LOC Loss of charge indication SH Superheat MOP Maximum operating pressure MSS Minimum stable superheat Te Saturated sucti...

Страница 3: ...densed Superheat close When the superheat is below a set minimum value the valve will close faster in order to protect the compressor from the risk of getting liquid in the suction line Manual control...

Страница 4: ...S2 PT1000 S4 PT1000 or digital input from external contact EEV driver Max current 150 mA EEV Uni or bipolar coil Data communication RS485 Modbus RTU Environment Storage 34 C to 71 C 30 F to 160 F Ope...

Страница 5: ...odbus address stored in PNU no 40041 default 165 Jumper not mounted Outdoor unit condenser Modbus address stored in PNU no 40042 default 164 Com KM5 1 Drain D 2 RS485 TxD RxD 3 RS485 TxD RxD 4 Not Use...

Страница 6: ...trol mode does not depend on the r12 Main Switch and will set the opening degree regardless of its setting Setting o18 Manual ctrl to 0 again the controller will assume normal control and will open or...

Страница 7: ...secondary address is 164 Note Changes to these parameters will become active immediately This means that a modbus tool or controller that changes these settings will loose connection to the EIM 336 an...

Страница 8: ...e controller is powered the valve will first be closed fully so that the controller starts from a known opening degree 0 In order to make sure that it is fully closed the valve will be closed 100 plus...

Страница 9: ...sensor value will be used 5 Configuring the superheat control The superheat control algorithm will attempt to regulate the superheat down to the lowest stable value between the minimum superheat sett...

Страница 10: ...um operation pressure If Pe goes above this value the controller will control on Pe and not on superheat Kp MOP 3113 Kp proportional gain while in MOP control mode Tn MOP 3114 Tn integration time whil...

Страница 11: ...05 Timer to trigger LOC alarm LOC Alarm 50006 Loss of charge alarm flag 0 no alarm 1 LOC alarm LOC SH Trig 50007 SH error trigger level for LOC alarm LOC Tmr 3102 Loss Of Charge time readout displays...

Страница 12: ...t regulation response Very low value give the risk of unstable regulation For Danfoss only 3105 SHL SH Low 3 20 6 K Superheat low setting for non linear control 3106 SHH SH High 8 40 16 K Superheat hi...

Страница 13: ...ext S2 temp 200 200 0 C External S2 This value can be used instead of a sensor This register must be written at least every 5 seconds otherwise the sensor value will be used 2646 TS4 ext S4 Air temp 2...

Страница 14: ...ain Switch 64309 Manual OD as steps 0 1 0 Enable the manual OD in o45 to be entered as halfsteps Readouts are still in percent Service Alarm 2046 RAL Reset alarm 0 1 0 1 clear alarm 20001 EKC Error 0...

Страница 15: ...troller will go to either the low or high boundary de pending on the error The highest value will be shown if the signal is above the maximum value The lowest value will be shown if the signal is belo...

Страница 16: ...it 3 Bit 2 Bit 1 Bit 0 Unused MOP Active Close Timer active Sensor Errors Control state Variables parameters CTRLstatus bit 0 3 Controlstate 0 closed 1 Error 2 Inject 3 De humidify 4 Force OD 5 Defros...

Страница 17: ...ght after the evaporator If the measured value is 1 2 K lower than the actual value of Pe right after the evaporator it may cause the evaporator to flood This is the case when the pressure transmitter...

Отзывы:

Нет отзывов