Flowserve NRS1-40.1 Manual de usuario descargar pdf (Pagina 22)

System Malfunctions

– continued –

Systematic fault finding procedure for system malfunctions

The sources of malfunctions occuring in CAN bus systems operating with several bus-based stations must

be analysed systematically since faulty components or incorrect settings can give rise to negative interac-

tions with intact bus devices in the CAN bus system. These unwanted interactions can cause error mes-

sages in fully functional bus devices, which will make fault detection even more difficult.

We recommend the following systematic fault finding procedure:

Step 1 (Start)

Detach

terminal strips

in all Bus sensors.

Level electrode

Conductivity electrode

Pressure sensor

Temperature sensor

etc.

Step 2

Plug in terminal strip

of the sensor

of the system

e. g. NRS...

and

NRG... (electrodes)

Check

Use fault-finding

list to identify

the fault(s)!

Final test

Have all faults

been eliminated?

System Fault

Use fault-finding

list to identify

the malfunction.

Cut off power supply

to the equipment!

Step 3

Apply mains voltage

to bus devices

of the system

e. g. NRS ...

and

NRG...

System O.K.

Detach

terminal strips

between bus devices

of the system

e. g. NRS...

and

NRG...

Check next system

1 2 ... 17 18 19 20 21 22 23 24 25 26 27 ... 33 34

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Flowserve NRS1-40.1 Manual de usuario Pagina 22

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