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Spirax Sarco LCR2251, Installation And Maintenance Instructions Manual, Page: 1 / 24

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Spirax Sarco LCR2251 Installation And Maintenance Instructions Manual Download Page 1

IM-P693-02 

EMM Issue 2

1

 LCR2251 Level Controller

LCR2251

Level Controller

Installation and Maintenance Instructions

IM-P693-02

EMM Issue 2

850144-01

1. Safety information

2. General product information

3. Mechanical installation

4. Electrical installation

5. Commissioning

6. Fault finding

7. Technical information

8. Technical assistance

© Copyright 2020 

Printed in Germany

Summary of Contents for LCR2251

Page 1: ...tion and Maintenance Instructions IM P693 02 EMM Issue 2 850144 01 1 Safety information 2 General product information 3 Mechanical installation 4 Electrical installation 5 Commissioning 6 Fault findin...

Page 2: ...equipment Do not commission or operate any item of equipment that does not have its own specific name plate Directives and standards VdT V Bulletin Wasserstand 100 Water Level 100 The LCR2251 level c...

Page 3: ...roportional plus integral control PI controller In the event of deviations from the setpoint it outputs a current of 4 20 mA as manipulated variable Y Alternatively the controller can be configured to...

Page 4: ...ns approximate in mm 120 46 74 Item 1 Upper terminal strip 2 Lower terminal strip 3 Housing 4 Support rail TH 35 EN 60715 Fig 2 3 2 Installation in control cabinet The LCR2251 level controller is clip...

Page 5: ...P LOOP 3 3 Name plates Fig 3 Type designation Top Bottom Safety information Manufacturer Degree of protection External fuse for output contacts Ambient temperature Output contacts Actual value output...

Page 6: ...us controller 3 MAX output contact de energizing delay 3 seconds 4 Supply voltage connection 24 Vdc with semi delay fuse 0 5 A provided on site 5 Output 4 20 mA manipulated variable Y for continuous c...

Page 7: ...control cable with a minimum conductor size of 0 5 mm2 e g LiYCY 2 x 0 5 mm2 maximum length 100 m Wire the terminal strip as shown in the wiring diagram see Fig 4 Connect the screen as shown in the wi...

Page 8: ...the equipment please use a screened multi core control cable with a minimum conductor size of 0 5 mm2 e g LiYCY 2 x 0 5 mm2 maximum length 100 m Connect the screen as shown in the wiring diagram Impo...

Page 9: ...troller Proportional band Pb 20 of setpoint continuous controller only Integral action time ti 0 s continuous controller only Dead band 5 of setpoint factory set Filter 2 s Fill control function Code...

Page 10: ...tch off the supply voltage Remove the lower terminal strip Fig 5 Insert a screwdriver between the terminal strip and the front frame to the right and left of the arrow markings Release the terminal st...

Page 11: ...2 S 3 S 4 Not used OFF ON Not used OFF Input for connection of level transmitter LP20 LP21 PA420 ON Fill control OFF Discharge control ON Continuous PI controller OFF On Off level controller ON grey...

Page 12: ...output relays FiLt Filter Used to dampen the effects of turbulent water level Continuous PI controller S4 OFF AL Hi Alarm High MAX switchpoint adjustable between 0 and 100 AL Lo Alarm Low MIN switchpo...

Page 13: ...ted in parameterization mode quit Confirm Input is not confirmed done Done Input is confirmed Indicated if malfunctions occur E 005 Error Faulty level transmitter measuring current too low E 006 Error...

Page 14: ...oint SP 80 of measuring range 160 mm Proportional band Pb 20 of setpoint 16 32 mm If the measuring range is 100 200 mm and the setpoint is 80 160 mm the proportional range will be 16 32 mm or in the r...

Page 15: ...digit flashes from right to left 2nd 3rd or 4th digit can now be changed using the up and down buttons Pressing the up button increases the value pressing the down button reduces the value When your e...

Page 16: ...en 0 100 Please take the settings for MIN MAX switchpoints into consideration Setting the proportional band continuous control only Select parameter Pb enter and save the desired percentage Proportion...

Page 17: ...exceeded the pump on switchpoint Pump LED lights up amber Pump output contacts 19 20 closed Water level reached or exceeded the pump off switchpoint Pump LED do not light up amber Pump output contact...

Page 18: ...second MIN output contact 16 18 open 17 18 closed MAX output contact 21 23 open 22 23 closed MIN LED flashes red De energizing delay in progress MIN LED lights up red for 3 seconds MIN output contact...

Page 19: ...ck level transmitter and replace if necessary Check electrical connection E 006 Faulty level transmitter measuring current 20 mA Check level transmitter and replace if necessary Check electrical conne...

Page 20: ...y equipment Suppress HF interference using hinged shell ferrite rings 6 3 Replacing taking the equipment out of service Switch off the power supply and cut off power to the equipment Remove the upper...

Page 21: ...ation Housing Housing material base black polycarbonate front grey polycarbonate Conductor size 1 x 4 0 mm2 solid per wire or 1 x 2 5 mm2 per lead with sleeve to DIN 46228 or 2 x 1 5 mm2 per lead with...

Page 22: ...resentative Ensure all items are suitably packed for transit preferably in the original cartons Please provide the following information with any equipment being returned 1 Your name company name addr...

Page 23: ...IM P693 02 EMM Issue 2 23 LCR2251 Level Controller...

Page 24: ...IM P693 02 EMM Issue 2 24 LCR2251 Level Controller Spirax Sarco Ltd Runnings Road Cheltenham GL51 9NQ United Kingdom www spiraxsarco com...

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