GESTRA LRR 1-52 Installation Instructions Manual
Conductivity controller, operating & display unit
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- Installation & operating manual (72 pages) ,
- Original installation & operating manual (72 pages)
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Summary of Contents for GESTRA LRR 1-52
- Page 1 Conductivity Controller LRR 1-52 Conductivity Controller LRR 1-53 Operating & Display Unit URB 50 LRR 1-52 LRR 1-53 URB 50 Original Installation Instructions 819225-03 E n g l i s h...
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Page 2: Table Of Contents
Dimensions URB 50 ..........................15 Key ...............................15 Installation in control cabinet ........................15 Name plate / marking ...........................15 In control cabinet: Wiring the conductivity controller Wiring diagram for conductivity controller LRR 1-52 ................16 Wiring diagram for conductivity controller LRR 1-53 ................17 Key ...............................17... - Page 3 In control cabinet: Wiring the operating & display unit Back of equipment, position of connector ....................18 Connection of supply voltage .........................18 Pin assignment for data line LRR 1-52, LRR 1-53 - URB 50 ..............18 Key ...............................18 In control cabinet: Wiring the conductivity controller / the operating & display unit Connection of supply voltage .........................19...
- Page 4 Commissioning procedure Adjusting the MIN/MAX switchpoints and setpoint .................29 Numberpad ............................29 Key ...............................29 Conductivity controller LRR 1-52: Setting the measuring range, correction factor and temperature compensation ........30 Key ...............................30 Conductivity controller LRR 1-53: Setting measuring range ..............31 Setting the control parameters ......................32 Additional information on control parameter settings ................32...
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Page 5: Important Notes
Important notes Usage for the intended purpose The functional unit consisting of the operating & display unit URB 50 / conductivity controller LRR 1-52, LRR 1-53 in conjunction with conductivity electrodes LRG 1.-.. and conductivity transmitter LRGT 1.-.. is used as conductivity controller and limiter, for instance in steam boilers, (pressurized) hot-water installations as well as condensate and feedwater tanks. - Page 6 Important Notes - continued - Glossary - continued - Temperature compensation The electrical conductivity changes as the temperature falls or rises. To obtain meaningful readings it is therefore necessary that the measurements are based on the reference temperature of 25 °C and that the measured conductivity values are corrected by the temperature coefficient factor tC.
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Page 7: Function
Important Notes - continued - Function The operating & display unit URB 50 and the conductivity controller LRR 1-52, LRR 1-53 form a functional unit featuring the following properties: Conductivity controller LRR 1-52 LRR 1-53 Conductivity monitoring using conductivity electrode LRG 1.-.. and separate resistance thermometer Pt 100 (TRG 5-..) or conductivity... -
Page 8: Safety Note
Important Notes - continued - Safety note The equipment must only be installed, wired and commissioned by qualified and competent staff. Retrofitting and maintenance work must only be performed by qualified staff who - through adequate training - have achieved a recognised level of competence. Danger The terminal strips of the equipment are live during operation. -
Page 9: Directives And Standards
(pressurised) hotwater installations. VdTÜV Bulletin "Water Monitoring 100" The functional unit consisting of the operating & display unit URB 50 / conductivity controller LRR 1-52, LRR 1-53 in conjunction with conductivity electrode LRG 1.-.. and conductivity transmitter LRGT 16-1 is type approved according to VdTÜV Bulletin "Wasserüberwachung (= Water Monitoring) 100". -
Page 10: Technical Data
Technical data LRR 1-52, LRR 1-53 Supply voltage 24 VDC +/– 20% Fuse external 0.5 A (semi-delay) Power consumption 5 VA Reset hysteresis MAX limit: – 3 % of the adjusted MAX limit, fixed setting Input/output Interface for data exchange with operating & display unit URB 50 Inputs 1 volt-free input, 24 VDC, for external command "Control OFF", "Valve CLOSED",... -
Page 11: Only Lrr 1-52
0.5 - 20, - 100, - 200, - 500, - 1000, - 2000, - 6000, - 12000 μS/cm adjustable, 100 - 3000, - 5000, - 7000, - 10000 μS/cm adjustable LRR 1-52, LRR 1-53 Ambient temperature when system is switched on: 0 ° ..55 °C, during operation: -10 ... -
Page 12: Urb 50
–20 ... +70 °C, defrosting time of the de-energized equipment before it can be put into operation: 24 hours. Relative humidity 5 - 85 %, no moisture condensation Scope of supply LRR 1-52 1 Conductivity controller LRR 1-52 1 Installation manual LRR 1-53 1 Conductivity controller LRR 1-53 1 Installation manual URB 50 1 Operating &... -
Page 13: In Control Cabinet: Installing The Conductivity Controller
Housing Lower terminal strip Supporting rail type TH 35, EN 60715 Installation in control cabinet The conductivity controller LRR 1-52, LRR 1-53 is clipped onto the support rail type TH 35, EN 60715 in the control cabinet. Fig. 1 4... -
Page 14: Name Plate / Marking
In control cabinet: Mounting the conductivity controller - continued - Name plate / marking Name plate LRR 1-52 Type designation Supply Safety note voltage Power consumption Protection Type approval no. Ambient temperature External fuse for output contacts Fuse, Measuring provided... -
Page 15: In Control Cabinet: Installing The Operating & Display Unit
In control cabinet: Installing the operating & display unit Dimensions URB 50 Fig. 4 Fig. 3 Fig. 5 Control panel cut-out: 136 x 96 mm Fixing elements Gasket Installation in control cabinet Provide a control panel cut-out with the dimensions indicated in Fig. 3 and 4. Insert the operating &... -
Page 16: In Control Cabinet: Wiring The Conductivity Controller
In control cabinet: Wiring the conductivity controller Wiring diagram for conductivity controller LRR 1-52 (–) (+) CLOSED OPEN M 0.5 A (semi- delay) Fig. 7... -
Page 17: Wiring Diagram For Conductivity Controller Lrr 1-53
In control cabinet: Wiring the conductivity controller - continued - Wiring diagram for conductivity controller LRR 1-53 (–) (+) CLOSED OPEN M 0.5 A (semi- delay) Fig. 8 Fixing screws for terminal strip Data line for operating & display unit URB 50 MIN output contact, de-energizing delay Conductivity electrode LRG 1.-.. -
Page 18: In Control Cabinet: Wiring The Operating & Display Unit
Connection of supply voltage +24V # (L-) (L-) Common M Fig. 10 Pin assignment for data line LRR 1-52, LRR 1-53 - URB 50 PIN 2 Data_L PIN 7 Data_H Fig. 11 D-SUB connector with 9 poles for data line... -
Page 19: In Control Cabinet
A-coded, pin assignment see Fig. 7. For connecting the equipment control cable assemblies (with male and female connectors) of various lengths are available as add-on equipment. To connect the conductivity controller LRR 1-52 remove the male connector and wire the terminal strip according to the wiring diagram. Fig. 7 Connect the screen only once to the central earthing point (CEP) in the control cabinet. -
Page 20: Connection Of Conductivity Transmitter Lrgt 1
In control cabinet: Wiring the conductivity controller / the operating & display unit - continued - Connection of conductivity transmitter LRGT 1.-.. To connect the equipment use screened multi-core control cable with a min. conductor size 0.5 mm e. g. LiYCY 4 x 0.5 mm , max. -
Page 21: In The Plant
UV-resistant plastic tube or cable duct. To connect the conductivity controller LRR 1-52, LRR 1-53 remove the connector and wire the terminal strip according to the wiring diagram. Fig. 7. Connect the screen only once to the central earthing point (CEP) in the control cabinet. -
Page 22: Conductivity Controller: Factory Settings
Conductivity controller: Factory settings Conductivity controller LRR 1-52, LRR 1-53 Conductivity controller LRR 1-52 Conductivity controller LRR 1-53 Measuring range = 0.5 to 10000 μS/cm Measuring range = 0.5 to 6000 μS/cm MAX switchpoint = 6000 μS/cm MAX switchpoint = 6000 μS/cm MIN switchpoint = 500 μS/cm... -
Page 23: Conductivity Controller: Changing Factory Settings
Conductivity controller: Changing factory settings Danger The upper terminal strip 1 of the equipment is live during operation. This presents the danger of electric shock! Always cut off power supply to the equipment before mounting, removing or connecting the terminal strips! Changing the function and unit The input and the function are determined by the code switch n setting. -
Page 24: Tools
Code switch n Toggle switch, white Toggle switch, white LRR 1-52 LRR 1-53 Conductivity controller LRR 1-52, LRR 1-53 Output contacts 16, 17, 18 set as MIN output contacts Output contacts 16, 17, 18 set for actuating an intermittent blowdown valve Electrical conductivity measured in µS/cm... -
Page 25: Operating & Display Unit Urb 50
Operating & display unit URB 50 User interface Start window Status bar Display field Input field Button bar Switch on supply voltage Switch on the supply voltage for the conductivity controller LRR 1-5.. and for the operating & display unit URB 50. -
Page 26: Explanation Of Icons
Operating & display unit URB 50 - continued - Explanation of icons Icon Description Icon Description MAX switchpoint Setpoint MIN switchpoint Conductivity reading Position of the continuous blowdown Stand-by input active valve Continuous blowdown valve is Continuous blowdown valve is moto- motored into OPEN position red into CLOSED position System switches to manual operating... - Page 27 Operating & display unit URB 50 - continued - Explanation of icons - continued - Icon Description Icon Description Automatic intermittent blowdown Interval for intermittent blowdown, adjustable between 1 and 200 hrs in steps of 1 h. Pulse for intermittent blowdown, Number of intermittent blowdown adjustable between 1 - 10 sec.
- Page 28 Operating & display unit URB 50 - continued - Explanation of icons - continued - Icon Description Icon Description Alarm message / Go to alarm list Go to alarm list Alarm message received Alarm message gone Go to first line in alarm list Scroll down alarm list Go to next active alarm Scroll up alarm list...
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Page 29: Commissioning Procedure
Commissioning procedure Adjusting the MIN/MAX switchpoints and setpoint Press the green button for each switchpoint or the setpoint. Use the on-screen numberpad Screen display 2 to enter the desired value. Screen display 1 Numberpad The green buttons in the following windows indicate that user input is possible. -
Page 30: Conductivity Controller Lrr 1-52: Setting The Measuring Range, Correction Factor And Temperature Compensation
Commissioning - continued - Conductivity controller LRR 1-52: Setting the measuring range, correction factor and temperature compensation Press button to open the parameter setting window for the conductivity electrode. For conductivity electrode LRG 1.-.. To establish the measuring range w and the correction factor C LRG x press the green button. -
Page 31: Conductivity Controller Lrr 1-53: Setting Measuring Range
Commissioning - continued - Conductivity controller LRR 1-53: Setting measuring range Press button to open the parameter setting window for the conductivity transmitter. Note Note that the conductivity transmitter LRGT 1.-.. must be put into operation first. Refer to the installation & operating manual for LRGT 16-1, LRGT 16-2, LRGT 17-1. The factory-set measuring range is shown. -
Page 32: Setting The Control Parameters
Commissioning - continued - Setting the control parameters Press button to open the parameter setting window for the controller. LRR 1-5. For each parameter setting press the green button. Use the on-screen numberpad to enter the desired value. Press button to go back to the start window. -
Page 33: Continuous Blowdown Valve: Setting The Purging Pulse And Duration
Commissioning - continued - Continuous blowdown valve: Setting the purging pulse and duration Press button to open the parameter setting window for the continuous blowdown valve. To enter the purging pulse D and the purging LRR 1-5. duration E press the green button. Use the on- screen numberpad to enter the desired time setting. -
Page 34: Automatic Intermittent Blowdown
Commissioning - continued - Automatic intermittent blowdown Screen display 9 appears once the output contacts 16, 17, 18 for controlling the intermittent blowdown valve have been configured (Fig.13), Press the green button next to the LRR 1-5. symbol Screen display 10 appears. Screen display 9 LRR 1-5. -
Page 35: Operation
Operation Manual actuation of continuous blowdown valve Press button to switch to manual operating mode. LRR 1-5. Use the hand slider to change the position of the continuous blowdown valve. The green button indicates the valve opening in %. Or press the green button and enter the desired valve opening in % in the numberpad. -
Page 36: Trending
Operation - continued - Trending Screen display 1 Press button to open the trend log window. LRR 1-5. Press button to move 1 hour back in the trend log window to zoom out of trend curve (magnification decreases) to zoom in on the trend curve (magnification increases) to move 1 hour forward in the trend log window... -
Page 37: Testing Min/Max Alarm, Entering Date And Time
Operation - continued - Testing MIN/MAX alarm, entering date and time Screen display 1 Press button to open the information window LRR 1-5. Testing MIN alarm Press and hold down button L for at least 3 sec. After the de-energizing delay the output contact 17-18 opens and the respective con- tact icon turns red. -
Page 38: Setting Up A Password And Logging In
Operation - continued - Setting up a password and logging in You can allocate a password in order to protect the operating & display unit from unauthorized access and operation. Screen display 17 To allocate a password press button The following button(s) appear(s): Press again button Screen display 18 appears. -
Page 39: Setting Up A Password And Logging In
Operation - continued - Setting up a password and logging in LRR 1-5. Press button to go to screen display 21 where you can enter a new password. to deactivate the password handling. to go back to the start window. All buttons and input options are now available Screen display 20... -
Page 40: Alarm List
Operation - continued - Alarm list LRR 1-5. Example: The MAX switchpoint is exceeded. The war- ning triangle O and the change of colour indicate that there is an alarm message. Press the button with the warning triangle O to view the alarm list (Screen display 23). Screen display 1 Press button to open the information window... -
Page 41: Error, Alarm And Warning Messages
Error, alarm and warning messages Indication, diagnosis and remedy Attention Before carrying out the fault diagnosis please check: Supply voltage: Is the equipment supplied with the voltage specified on the name plate? Wiring: Is the wiring in accordance with the wiring diagram? Alarm list / window Status / error Remedy... -
Page 42: Further Notes
Further Notes Action against high frequency interference High frequency interference can occur for example as a result of out-of-phase switching operations. Should such interference occur and lead to sporadic failures, we recommend the following actions in order to suppress any interference. Provide inductive loads with RC combinations according to manufacturer's specification to ensure interference suppression. - Page 43 For your Notes...
- Page 44 Agencies all over the world: www.gestra.de GESTRA AG Münchener Straße 77 28215 Bremen Germany Telefon +49 421 3503-0 Telefax +49 421 3503-393 E-mail info@de.gestra.com www.gestra.de 819225-03/04-2017csa (808891-03) · GESTRA AG · Bremen · Printed in Germany...
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