Flowserve NRS 2-40 Manuel d'utilisateur

1Installation Instructions 810371-02Level Switch Type NRS 2-40NRS 2-40

10Wiring diagramSee wiring diagrams on pages 3 and 4.WiringInstallationNRS 2-40ToolInstallation on mounting rail1. Clip level switch onto mounting rai

11Attention Wire equipment in series. Star-type wiring is not permitted. Interlink screens of control cables such that electrical continuity isensured

12CAN BusAll level and conductivity controllers and associated electrodes are interconnected bymeans of a CAN bus using the CANopen protocol. Every it

13Factory settingBasic Adjustments – continued –100 %80%60 %40%20%Fig. 7 Baud rate: 250 kb/s Control equipment: 1 Node ID: 039 Control equipment: 2 N

14CommissioningNRS 2-40Apply power to the unit.The four indicator LEDs flash rapidly.The LED “Power” lights up.The system test cycle takes about 2 sec

15Establish control rangeCommissioning – continued –Press button briefly.Note:In the event of a system malfunction,the LED(s) “Bus status” and/o

16Establish control range – continued –Commissioning – continued –Press button twice briefly.The upper limit of the desired controlrange is now

17Establish control range – continued –Commissioning – continued –Press button briefly.Lower or raise liquid level untilswitchpoint 4 within th

18Establish control range – continued –Commissioning – continued –Press button briefly.Switchpoint 2 is now active.Press button briefly.Ra

19Establish control range – continued –Commissioning – continued –Press button twice briefly.Switchpoint 1 is saved.The NRS 2-40 is again in op

2ContentsUsage to the intended purpose ...7Safety note / Danger ..

20Hold down button .LED 4 goes out.A low-level alarm is simulated forswitchpoint 4.Press button briefly.The test mode is active for 5 seconds

21System Malfunctions – continued –Systematic Malfunction AnalysisThe sources of malfunctions occurring in CAN bus systems operating with severalbus-

22The four indicator LEDs flash slowly.High/low-level alarmFault:The max. admissible temperature in the electrode terminal box is exceeded.Remedy:Insu

23LED “Bus status” flashes slowly.Fault:Data transfer in CAN bus interrupted.Remedy:The bus cables have to be correctly connected according to the wir

24LED “Power” flashes slowly.Fault:The power supply unit (PSU) is overloaded and may be misused forother components.Remedy:Check load of power supply

25Fault:Incorrect function at analogue output. The following actual value indicatorshows incorrect values.Remedy:Correct the switchpoint settings and

26Malfunctions – continued –Fault: “HIGH-LEVEL” switchpoint exceeded – no indication.Remedy:Level switch defective. Replace equipment.If faults occur

27AnnexThe terminal strip of the NRS 2-40 is live during operation.This presents the danger of electric shock.Cut off power supply before mounting or

28Annex – continued –OFFNode IDS11ONS22OFFS34ONS48OFFS516OFFS632ONS7ONNode IDS11ONS22ONS34OFFS48OFFS516ONS632OFFS7643974Fig. 11 (Factory setting)Fig.

29Annex – continued –Terminal stripsSupporting rail 35 x 15 to DIN EN 50022We hereby declare that the equipment NRS 2-40 conforms to the followingEur

3SeiteWiring DiagramFig. 2Fig. 1Paired cablePaired cable*) CEP = central earthing pointControl terminalURB 1Controller. . .Level electrodesNRG 26-40Te

30118Example of InstallationFig. 14Fig. 151007320 20AAC

31For your notes

32810371-02/903 · ©2000 GESTRA GmbH · Bremen · Printed in GermanyGESTRA GmbHP. O. Box 10 54 60, D-28054 Bremen, Münchener Str. 77, D-28215 BremenTel

4Wiring DiagramFig. 4Fig. 3Discharge control –Pump OFF at low level (MIN)Fill control – Pump OFF at high level (MAX)Paired cablePaired cableoptional o

5Parts DrawingFig. 6Fig. 5123567A BA4

6Indicator LEDsLED 1 – switchpoint 1LED 2 – switchpoint 2LED 3 – switchpoint 3LED 4 – switchpoint 4LED “Bus status”LED “Power”Enter button / test mode

7Important NotesSafety notesThe equipment must only be installed by qualified staff.Qualified staff are those persons who – through adequate training

8FunctionAt regular intervals the level electrode type NRG 26-40 sends a data telegram to thelevel switch NRS 2-40. The data transfer is effected by m

9Technical dataType approval no.NRS 2-40: TÜV · WR · 98-399Input / OutputInterface for CAN bus to DIN ISO 11898 using CANopenOutput – voltage supply f