Flowserve URB 2 Bedienungsanleitung PDF herunterladen (Seite 12)

Wiring – continued –

Wiring diagram for CAN bus system – example –

Attention

■ Wire equipment in series. Star-type wiring is not permitted!

■ Connect screens of the bus cables once to the central earthing point (CEP).

■ If two or more system components are connected in a CAN bus system, the ﬁrst and

the last device must be provided with a terminating resistor of 120 Ω (terminal

). We recommend that you use the URB 2 with a connecting socket equipped with

terminating resistor either as ﬁrst or as last device.

■ Only one operating and display unit URB 2 may be used per CAN bus network.

■ The CAN bus system must not be interrupted during operation.

In the event of an interruption a malfunction alarm is raised.

■ The operating and display unit URB 2 must not be applied in parallel with the operating,

display & automatic control device SPECTORcontrol.

Basic Settings

Factory setting

Operating & display unit URB 2

The operating and display unit URB 2 unit features the following factory set default values:

■ Node ID: 60

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

Fig. 6

Connecting socket with

terminating resistor 120 Ω

Plug with terminating

resistor 120 Ω

Central

earthing point

CEP

Control unit

NRS 1-4x

NRS 2-40

NRR 2-40

LRR 1-40

TRS 5-40

Operating device

URB 2

Level electrode

Conductivity

electrode

NRG x6-4x

LRG xx-4x

Temperature

transmitter

TRV 5-40

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 47 48

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