nord NORDAC START Series, Руководство пользователя

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4 Commissioning
BU 0135 en-4118 77
4.4.3 Commissioning
4.4.3.1 Connection
Connection of the PROFIBUS cable (lilac) is made via the terminal strip and can optionally be made to
an appropriately labelled M12 flange plug contact (lilac)
The connection to the terminal strip must not be made via a stub, i.e. the "incoming" and "outgoing"
PROFIBUS cables must be connected in one terminal together using a double wire end sleeve, for
example!
Details of control terminals (

Section 2.3.3 "Electrical connection of the control unit")
Details of connectors (

Section 3.2.3.2 "Plug connectors for control connection")
Jumper position Meaning
Bus not terminated, terminating
resistor
not set (OFF)
OFF
Factory setting
Bus terminated, terminating
resistor
set (ON)
ON
Figure 12: PROFIBUS, connecting terminals and jumper position (example of "OFF" position)
Type
PROFIBUS DP connection Control voltage connection
PBR-A PBR-B 24 V DC GND
SK 175E-…-PBR 81 82 44 40
Table 12: PROFIBUS DP, connection of signal and supply cables
In order to ensure that proper potential equalisation takes place, the connection of a second
earthing line
is recommended. This must be connected to the PE connection of the device.
The bus terminating resistor is terminated at the first and last bus subscribers (see above for jumper
position SK 175E-…-PBR).
4.4.3.2 Displays
The status of the PROFIBUS is signalled by a BR LED.