Bus Termination - Siemens sitrans LR460 Schnellstartanleitung

6. Replace the enclosure cover and hand tighten it. The sealing ring must be clean and
undamaged.
7. Tighten the screw on the cover lock.
8. Connect the external earth terminal located between the cable glands to a ground
connection at your vessel. Use a cable with a cross-section of 2.5 mm
SITRANS LR460 HART wiring
9. Return to
SITRANS LR460 PROFIBUS PA wiring
Connecting SITRANS LR460
(continued from
PROFIBUS PA is not polarity-sensitive.
Note:
Power Demands
To determine how many devices can be connected to a bus line, calculate the combined
maximum current consumption of all the connected devices: 10.5 mA for SITRANS LR460.
Allow a current reserve for safety.

Bus Termination

PROFIBUS PA MUST be terminated at both extreme ends of the cable for it to work properly.
Please refer to the PROFIBUS PA User and Installation Guidelines (order number 2.092),
available from www.profibus.com.
Install in accordance with
available from www.profibus.com.
AC version
cable clamp
Page EN-8
on page 7 to complete LR460 set up.
PROFIBUS PA User and Installation Guidelines
earth
terminal
SITRANS LR460 – QUICK START MANUAL
on page 6)
DC version
cable clamp
2
or greater.
(order number 2.092),
earth
terminal
7ML19985QW82