Siemens LR 460 User Manual
Page 22
SITRANS LR 460 – INSTRUCTION MANUAL
7ML19985JM01
m
mmmm
Wi
rng
Connecting PROFIBUS PA
Typical PLC/mA configuration with PROFIBUS PA
(Continued from
on page 19, step 2.)
3.
Connect the earth conductor of the power supply to the earth terminal
on the
metal bracket inside the enclosure. Adjust the cable length so that the earth
conductor would be last to disconnect if cable is pulled.
conductor would be last to disconnect if cable is pulled.
4.
Tighten the cable gland and check the strain relief (pull and turn).
5.
Replace the enclosure cover and hand tighten it. The sealing ring must be clean and
undamaged.
6.
Tighten the screw on the cover lock.
7.
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
connection at your vessel. Use a cable with
a cross-section of 2.5 mm
2
or greater.
Class 1
Master
DP/PA
Coupler
PROFIBUS PA
HART
ET200
Class 2
Master
SITRANS
LR 460
SITRANS
LR 460
SITRANS
LR 460
PLC
PDM
PROFIBUS PA
cable
glands
earth
(ground)
terminal