GESTRA Steam SystemsLRR 1-40Installation Instructions 818527-00TDS Control Unit LRR 1-40
10Explanatory Notes – continued –Technical dataType approval no.TÜV.WÜL.02-007EG BAF-MUC 02 05 103881 003Input/Output Interface for CAN bus to ISO 118
11Explanatory Notes – continued –Technical data - continued -Indicators and adjustors Four pushbuttons as operating elements.Four LEDs for indicating
12Explanatory Notes – continued –Technical data - continued -24 hr purging pulse Forced opening of the continuous blowdown valve every 24 hours, adjus
13Explanatory Notes – continued –Name plateInstallationControl unit LRR 1-40The control unit LRR 1-40 is installed in a control cabinet on a supportin
14WiringBus cableNote that screened multi-core twisted-pair control cable is required as bus line, e.g. UNITRONIC® BUS CAN 2x 2x...mm² or RE-2YCYV-fl
15Wiring – continued –Change baud rate1. Remove lower terminal strip .2. The terminal strip can be unplugged after undoing the right and the left fixi
16Wiring – continued –Wiring diagram LRR 1-401232716LNN1LH1+-CCS234567817 18 19 20 21 22 23 24925102611 1228132914301523 25Potentiometer24V AC/DC Obse
17Wiring – continued –Wiring diagram for CAN busThe following wiring diagram serves as an example:Centralearthing pointCEPOperating device URBControl
18Wiring – continued –Wiring diagram for CAN bus – continued –Tools Screwdriver for slotted screws, size 2.5, completely insulated according to DIN V
19Basic SettingsCAN bus All devices (level, conductivity) are interconnected via CAN bus. The CANopen protocol is used for the data exchange between t
2ContentsPageImportant NotesUsage for the intended purpose...6Safe
20Basic Settings – continued –Factory settingThe control unit LRR 1-40 features the following factory set default values:Control parameters Setpoint
21CommissioningStartApply mains voltage.LED 1-4 are flashing rapidly.LED "Power" is illuminated.LED 1-4 go out after a short period of time.
22OperationNormal operationLED "Power" is illuminated.LEDs 1 - 4 are not illuminated, the conductivity electrode is immersed.Continuous boil
23Operation – continued –Stand-by operationTo avoid loss of water, the continuous blowdown control and the automatic boiler blowdown (if activated) ca
24Operation – continued –MAX limit / MIN limitOnly applicable if: Relay contact 1 (feedback LED 1) works as switching output for MAX limit Relay con
25Operation – continued –Performance testAs part of the performance test a value is simulated that exceeds the measuring range limit of 12000 µS/cm of
26Operation – continued –Performance test for relays 1 and 4Press button briefly.LED 1 and 4 are flashing rapidly.LED 4 is illuminated during intermi
27System FaultsCausesMalfunctions occur if CAN bus components have been mounted or configured incorrectly or if electronic component parts are defecti
28System Faults – continued –Systematic malfunction analysisThe sources of malfunctions occuring in CAN bus systems operating with several bus-based s
29System Faults – continued –Fault finding list for troubleshooting system faultsLED 1-3 (4 for MIN limit) are flashing rapidlyFault: The initialising
3ContentsPageOperationNormal operation ...22Co
30System Faults – continued –Action against high frequency interferenceDue to the digital signal evaluation we recommend the following measures for in
31System Faults – continued –Action against high frequency interference – continued –H. F. Interference suppression of CAN bus line Clamp hinged-shell
32MalfunctionsFault finding list for troubleshootingEquipment does not work - no functionFault: LED "Power" is not illuminated.Remedy:Switc
33AnnexFactory setting of node IDsIndividual node IDs must be set manually in the respective equipment.Please observe the pertinent installation instr
34Annex – continued –Table Node IDIn a CAN bus system a maximum of 123 nodes (devices) can be administered. Each node has its own address (node ID). T
35Annex – continued –Declaration of conformityWe hereby declare that the equipment LRR 1-40 conforms to the following European guidelines: LV guideli
36Examples of installation1234567891011121314152716 17 18 19 20 21 22 23 24 25 26 28 29 30MAX 55°CMAX 95%%IP 202716LNN1LH1+-C CS234567817 18 19 20 21
37For your notes
818527-00/0105agt ©2004 GESTRA AG Bremen Printed in Germanywww.gestra.deGESTRA AGPostfach 10 54 60, D-28054 Bremen Münchener Str. 77, D-28215 Bremen
4Functional Elements12MAXP122716 17 18 19 20 21 22 23 24 25 26 28 29 30LNN1123456789101112131415LH+-CCSFig. 2Fig. 1TestTest12345 6 78910ABCDEF
5KeyLED 1 (MAX)LED 2 (Valve closed)LED 3 (Valve open)LED 4 (MIN)Program button for switching between operating and parameterising modeIncrease buttonD
6Important NotesUsage for the intended purposeUse blowdown controller LRR 1-40 only in conjunction with conductivity electrode LRG 16-40 and an operat
7Important Notes – continued –ATEX (Atmosphères Explosibles)According to the European Directive 94/9/EC the equipment must not be used in potentially
8Explanatory Notes – continued –DescriptionAs the boiler water evaporates, the concentration of non-volatile dissolved solids (TDS) left behind in the
9Explanatory Notes – continued –FunctionThe conductivity electrode LRG 1-40 sends at regular intervals data telegrams via CAN bus to the control unit
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