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GESTRA LRR 1-40, Original Installation Instructions

The GESTRA LRR 1-40 is a top-quality product designed for efficient control of liquid levels. To ensure proper installation and operation, it is crucial to follow the Original Installation Instructions provided in the comprehensive user manual. Download the manual for free from our website, manualshive.com, to maximize the performance of your GESTRA LRR 1-40.

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Contents

Usage for the intended purpose ..............................................................................................................4

Safety note .............................................................................................................................................4

ATEX (Atmosphère Explosible) .................................................................................................................4

Danger ...................................................................................................................................................4

Important Notes

Page

Explanatory Notes

Scope of supply ......................................................................................................................................5

Description .............................................................................................................................................5

Function ............................................................................................................................................. 5, 6

LRR 1-40 ..............................................................................................................................................13

Tools .....................................................................................................................................................13

Installation

Electrical Connection

Bus cable..............................................................................................................................................14

Changing baud rate ..............................................................................................................................14

Wiring terminal strip .............................................................................................................................14

Note .....................................................................................................................................................14

Wiring diagram LRR 1-40 .....................................................................................................................15

Wiring diagram for CAN bus system ......................................................................................................16

Attention ...............................................................................................................................................16 

Note .....................................................................................................................................................17 

Tools .....................................................................................................................................................17

LRR 1-40 ..........................................................................................................................................7 – 9

Name plate / marking .............................................................................................................................9

Dimensions ...........................................................................................................................................10

Technical Data

LRR 1-40 ..............................................................................................................................................11

Key .......................................................................................................................................................12

Functional Elements

CAN bus ...............................................................................................................................................18

Node ID ................................................................................................................................................18

Factory setting ......................................................................................................................................18

Danger .................................................................................................................................................19

Basic Settings

Summary of Contents for LRR 1-40

Page 1: ...1 E N English Original Installation Instructions 818527 03 Control Unit LRR 1 40 ...

Page 2: ...R 1 40 13 Tools 13 Installation Electrical Connection Bus cable 14 Changing baud rate 14 Wiring terminal strip 14 Note 14 Wiring diagram LRR 1 40 15 Wiring diagram for CAN bus system 16 Attention 16 Note 17 Tools 17 LRR 1 40 7 9 Name plate marking 9 Dimensions 10 Technical Data LRR 1 40 11 Key 12 Functional Elements CAN bus 18 Node ID 18 Factory setting 18 Danger 19 Basic Settings ...

Page 3: ... when using the equipment as conductivity limiter 23 Performance test for relays 1 and 4 24 Operation Fault finding list for troubleshooting 30 Malfunctions Factory setting of node IDs 31 Establishing changing node ID 31 Attention 31 Table Node ID 32 Changing factory settings 32 Note on the Declaration of Conformity Declaration by the Manufacturer 33 Annex Causes 25 Test 25 Danger 25 Systematic ma...

Page 4: ...bove must be considered as improper The result ing risk will have to be borne by the user alone The manufacturer hereby expressly rejects any claims for any damage resulting from improper usage Safety note The equipment must only be installed and commissioned by qualified and competent staff Retrofitting and maintenance work must only be performed by qualified staff who through adequate training h...

Page 5: ...when the valve is being opened the opening time should therefore not exceed 2 seconds The timed pulse interval control of the intermittent blowdown valve optimises sludge removal while minimising loss of boiler water The interval between the intermittent blowdown pulses can be set between 1 and 120 h intermittent blowdown interval The duration of the intermittent blowdown can be set between 1 and ...

Page 6: ...inuous blowdown valve BAE 46 BAE 47 For the visual display of the process and the control of the continuous blowdown valve via CAN bus the control unit will send a separate data telegram with the following content n Type of conductivity electrode used with the CAN bus n MIN MAX limit n Continuous blowdown valve setpoint of valve position n Times for automatic intermittent blowdown control Use oper...

Page 7: ...ur LEDs red green for indicating the operationg modes One red LED Bus Status One green LED Power One 10 pole code switch 7 poles for node ID 3 poles for baud rate setting Setpoint W Adjustable within the measuring range between the MIN MAX limits Control range configuration as proportional controller Beginning 0 5 x setpoint W up to 1 5 x setpoint W Dead band configuration as proportional controll...

Page 8: ...ctual value output 4 20 mA LRG 16 40 LRG 17 40 Measuring ranges µS cm at 25 C Current output mA µS cm Preferred measuring range up to 500 µS cm 4 mA corresponds to 20 mA corresponds to 0 5 20 0 5 20 100 100 200 200 500 500 1000 1000 2000 2000 6000 6000 12000 12000 LRG 16 41 Measuring ranges µS cm at 25 C Current output mA µS cm 4 mA corresponds to 20 mA corresponds to 100 3000 100 3000 5000 5000 7...

Page 9: ...down 1 60 seconds adjustable in steps of one second Pulses of intermittent boiler blowdown 1 5 adjustable in steps of one Pulse interval 5 30 seconds adjustable in steps of one second Mains voltage 230 V 10 15 50 60 Hz 115 V 10 15 50 60 Hz optional 24 V 10 15 50 60 Hz optional Power consumption 10 VA Protection Housing IP40 to EN 60529 Terminal strip IP20 to EN 60529 Max admissible ambient tempera...

Page 10: ...us 18 36 V DC IP 40 IP20 115V 15 10 10VA Betriebsanleitung beachten See installation instructions Voir instructions de montage Node ID ___ ___ ___ GESTRA AG Münchener Str 77 D 28215 Bremen TÜV WÜL xx 007 LRR 1 40 1 2 3 4 5 S 24V DC CAN BUS CH CL 17 16 L N 11 10 9 12 S S M 15 14 13 7 8 24V AC DC stand by X ext 4 20 mA S Seriennummer ...

Page 11: ...ESTRA LRR 1 40 27 16 1 2 3 4 5 6 7 8 17 18 19 20 21 22 23 24 9 25 10 26 11 12 28 13 29 14 30 15 100 1 1 8 73 Fig 2 Fig 3 1 2 3 4 Test P 1 2 3 E 4 µS ppm GESTRA LRR 1 40 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 1 27 16 17 18 19 20 21 22 23 24 25 26 28 29 30 1 ON 2 3 4 5 6 7 8 9 0 ...

Page 12: ...nal Elements LRR 1 40 Fig 4 Fig 5 1 7 6 5 8 2 3 1 2 3 4 Test P 1 2 3 E 4 µS ppm GESTRA LRR 1 40 27 16 17 18 19 20 21 22 23 24 25 26 28 29 30 1 2 3 4 Test P 1 2 3 E 4 µS ppm GESTRA LRR 1 40 1 ON 2 3 4 5 6 7 8 9 0 ...

Page 13: ...LOSED Malfunction message LED 3 Continuous blowdown valve OPEN Malfunction message LED 4 MIN alarm continuous blowdown Malfunction message 2 LED Bus status 3 LED Power 4 5 Program button 6 Increase button 7 Decrease button 8 Enter Test 9 Code switch 10 poles 0 Terminal strip Screws for terminal strip Case Supporting rail TS 35 x 15 DIN EN 50022 ...

Page 14: ...14 Tools Screwdriver size 5 5 100 Installation LRR 1 40 Mounting on supporting rail 1 Clip control unit onto the supporting rail Supporting rail TS 35 x 15 DIN EN 50022 2 Align control unit Fig 7 ...

Page 15: ...1 2 3 4 5 6 7 8 17 18 19 20 21 22 23 24 9 25 10 26 11 12 28 13 29 14 30 15 1 2 3 4 Test P 1 2 3 E 4 µS ppm GESTRA LRR 1 40 1 2 3 4 Test P 1 2 3 E 4 µS ppm GESTRA LRR 1 40 27 16 1 2 3 4 5 6 7 8 17 18 19 20 21 22 23 24 9 25 10 26 11 12 28 13 29 14 30 15 100 1 1 8 73 20 20 ...

Page 16: ... power consumption must also be taken into consideration when selecting the conductor size The total power consumption is obtained from the number of bus nodes If the cable length between the steam boiler and the control cabinet exceeds 15 m we recommend that you fit a branching box that is resistant to electromagnetic interference stock code 1501214 and use a control cable with a larger conductor...

Page 17: ...units with voltage supply Qty x Power output per item Sum x 6 W W Please enter data Sum 1 W Sensor transmitter control units operating display unit URB 1 Qty x Power consumption per item Sum x 3 W W Operating Display Unit URB 2 x 5 W W Please enter data Sum 2 W If sum 2 exceeds sum 1 supply the CAN bus with 24 V DC coming from a separate and stabilized safety power supply unit e g SITOP Smart 24 V...

Page 18: ...STRA LRR 1 40 S 120 Ω Electrical Connection continued Wiring diagram LRR 1 40 Fig 7 Fig 6 18 36 V DC CAN bus Feedback potentiometer 1000 Ω LOPEN LCLOSED Actuator Continuous blowdown valve BAE 36 1 2 5 V DC with potentiometer 5 V DC no load voltage without potentiometer N L CL CH L N L L Continuous blowdown control Valve OPEN 25 Valve CLOSED 23 a b b c d ...

Page 19: ...function is desired Terminal 7 8 ä voltage input 24 V AC DC for external command contact closed control OFF valve CLOSED intermittent blowdown OFF stand by May come from the bus supply For DC Observe polarity a Terminating resistor 120 Ω RES 1 or RES 2 b CAN bus line twisted pair control cable c Intermittent blowdown valve Key d Continuous blowdown valve e Pin 1 Screen f Pin 2 Voltage supply 24 V ...

Page 20: ...rom the central earthing point CEP To protect the switching contacts fuse circuit with T 2 5 A or according to TRD regulations 1 0 A for 72 h operation If two or more system components are connected in a CAN bus system provide the first and the last device with a terminating resistor of 120 Ω Fig 10 Fig 11 Note that in a CAN bus network only one water level limiting system may be used Do not inter...

Page 21: ...ed screws size 2 5 completely insulated according to VDE 0680 Bus cable All devices level conductivity temperature are interconnected via CAN bus The CANopen protocol is used for the data exchange between the equipment groups All devices have an electronic address the node ID The four core bus cable serves as power supply and data highway for high speed data exchange The CAN address node ID can be...

Page 22: ...RV 5 40 2 Limiter 3 Limiter 4 X X 1 X 2 X 3 X 4 6 7 8 9 10 Factory setting TRS 5 40 1 TRS 5 40 2 X 1 90 X 2 90 97 98 High level alarm NRS 1 41 NRG 16 41 Reserved Reserved Reserved X X 1 X 2 X 3 X 4 6 7 8 9 10 Factory setting Further components SRL 40 X sensor level limiter hi alarm 2 Factory setting ORT 6 98 Factory setting On off level control Reserved NRS 1 42 NRG 16 42 X 1 X X 1 19 20 21 Factor...

Page 23: ...em settings n Baud rate 250 kBit s for 125 m bus line n Node ID 50 Enter the assigned node ID on the name plate Basic Settings continued Establishing changing node ID If several identical systems are to communicate in a CAN bus network allocate a different node ID for each system e g limier controller etc In most cases it is sufficient to commission the equipment with the default factory settings ...

Page 24: ...0 Baud rate Cable length OFF ON OFF 250 kBit s 125 m ON ON OFF 125 kBit s 250 m OFF ON ON 100 kBit s 335 m ON ON ON 50 kBit s 500 m OFF ON ON 20 kBit s 1000 m ON ON ON 10 kBit s 1000 m Basic Settings continued Code switch settings 9 9 Fig 16 Example 1 Fig 15 Factory setting Fig 17 Factory setting 250 kBit s 1 ON 2 3 4 5 6 7 8 9 0 50 1 ON 2 3 4 5 6 7 8 9 0 76 ...

Page 25: ...sition or the control position Only applicable if the 24 hour purging was activated The continuous blowdown valve is actuated and opens for 2 minutes LED 3 is flashing After two minutes the operation is reversed LED 3 is no longer illuminated The continuous blowdown valve is again actuated for 2 minutes and closes LED 2 is flashing Then the continuous blowdown valve is motored into the OPERATING p...

Page 26: ...ttent blowdown interval The duration of the intermittent blowdown can be set between 1 and 60 s For larger boilers it may be necessary to repeat the intermittent blowdown pulses The intermittent blowdown pulses can be repeated up to 5 times within 5 30 seconds pulse interval Parameters can only be set via the operating unit URB SPECTORcontrol Intermittent boiler blowdown Only applicable if Automat...

Page 27: ...tion has been set Operation continued 24 hr purging pulse Only applicable if the 24 hour purging was activated To prevent blocking of the continuous blowdown valve a purging pulse is triggered when the mains voltage is switched on The continuous blowdown valve is actuated and opens for 2 minutes LED 3 is flashing After two minutes the operation is reversed LED 3 is no longer illuminated The contin...

Page 28: ...t 4 feedback LED 4 works as switching output for automatic intermittent boiler blowdown LED 1 lights up once the set MAX limit is reached Relay contact 1 opens safety circuit LED 1 is not illuminated if the actual value is below the MAX limit Relay contact 1 closed LED 4 is illuminated during intermittent blowdown and relay contact 4 is closed The intermittent blowdown valve opens LED 4 is not ill...

Page 29: ...t until LED 1 is illuminated Relay contact 1 opens As long as the button is pressed down a conductivity value greater than 12000 µS cm is simulated Operation continued When using the equipment as conductivity limiter please note Note The control unit LRR 1 40 does not lock automatically when the adjusted MAX limit is exceeded If a lock function is required by the installation it must be provided i...

Page 30: ... is lit and relay contact 1 opens MAX limit Press button As long as the button is pressed down LED 4 is illuminated and relay contact 4 opens MIN limit If automatic intermittent boiler blowdown is active Press button As long as the button is pressed down LED 4 is lit and relay contact 4 closes intermittent blowdown valve opens 1 2 3 4 Test P 1 2 3 E 4 µS ppm GESTRA LRR 1 40 1 2 3 4 Test P 1 2 3 E ...

Page 31: ... Fault Dirt deposits on the measuring surface s can cause MAX or MIN alarms although the actual value is between these limits reference measurement Remedy Remove conductivity electrode and clean measuring surface s If configured as proportional controller The equipment works as two position on off controller Fault The feedback potentiometer in the continuous blowdown valve is either defective or n...

Page 32: ...more detailled malfunction analysis the operating and display device URB or SPECTORcontrol must be used Please observe the respective installation manuals Causes When carrying out the individual tests please check Wiring Is the wiring in accordance with the wiring diagrams Is the polarity correct throughout the whole bus line Is the bus line of each of the end nodes provided with a 120 Ω terminati...

Page 33: ...stematic malfunction analysis System malfunctions continued Step 1 Start Detach terminal strips of all bus based sensors Level electrode Conductivity electrode Pressure sensor Temperature sensor etc Step 3 Apply mains voltage to all bus devices in the system e g LRR and LRG Step 2 Plug in terminal strip of the measuring sensor of a system e g LRR and LRG electrode System O K Detach terminal strips...

Page 34: ... conductivity electrode is exposed Remedy Check installation and make sure that the measuring surface is submerged Fault Internal wires of the conductivity electrode are defective or the temperature sensor failed Remedy Replace conductivity electrode Fault The temperature in the terminal box of the conductivity electrode exceeds the specified limit Remedy Check installation of electrode and if nec...

Page 35: ...Cut off power supply and restart system after 5 sec Fault In spite of correct wiring and commissioning of the equipment an error message is indicated Remedy The error message is caused by the high frequency interference coming from the system For interference suppression we supply ferrite rings stock code 147253 The 230 V supply lines should be looped five to ten times through the ferrite ring If ...

Page 36: ...o the equipment before mounting or removing the terminal strips 1 First detach terminal strips 0 For this purpose turn the right and left fixing screw in direction of the arrow until the terminal strip can be detached 2 Undo the fixing slide snap out the controller and take it off the supporting rail 3 When ordering spare parts please state the serial number indicated on the name plate 4 Write dow...

Page 37: ...n the conformity of our equipment according to the European Directives see our Declaration of Conformity or our Declaration of Manufacturer The current Declaration of Conformity Declaration of Manufacturer are available in the Internet under www gestra en documents or can be requested from us ...

Page 38: ...38 For your notes ...

Page 39: ...39 For your notes ...

Page 40: ...8544 03 GESTRA AG Bremen Printed in Germany GESTRA AG Münchener Straße 77 28215 Bremen Germany Telefon 49 421 3503 0 Telefax 49 421 3503 393 E mail info de gestra com Web www gestra de Agencies all over the world www gestra de ...

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