Flowserve NRS1-40.1 Manual de usuario descargar pdf (Pagina 16)

Wiring

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Wiring diagram for CAN bus system - example -

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Connect screen only to the respective terminals and to the central earthing point (CEP).

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The rated voltage is indicated on the name plate.

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When switching off inductive loads, voltage spikes are produced that may impair the op-

eration of control and measuring systems. Connected contactors must therefore be pro-

vided with suppressors such as RC combinations.

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In the event of an alarm the signal output (terminal 7 and 8) is instantaneously closed.

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In the event of a malfunction the signal output (terminals 7 and 8) is opened and closed

in a clock-pulse controlled way in order to ensure an optical differentiation between an

alarm and a malfunction signal. If required you can wire terminals 7 and 8 with an exter-

nal signal lamp.

Tools

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Screwdriver for slotted screws, size 2.5, completely insulated according to VDE 0680-1

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Screwdriver for cross head screws, size 2

Basic Settings

Factory settings

Control unit NRS 1-40.1

The control unit features the following factory set default values:

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Node ID: 1

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Baud rate: 250 kBit/s (125 m cable length)

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De-energizing delay: 3 sec.

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Configuration: Operation with two level electrodes NRG 1x-40, one level electrode NRG 1x-41.1 and

one temperature transmitter TRV 5-40.

Note

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Flowserve NRS1-40.1 Manual de usuario Pagina 16