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Connecting PROFIBUS PA
Typical PLC/mA configuration with PROFIBUS PA
mmmmm Wirng
Class 1
Master PLC
PROFIBUS PA
DP/PA
Coupler
PROFIBUS PA
Class 2
PDM Master
ET200
HART
SITRANS | SITRANS | SITRANS |
LR 460 | LR 460 | LR 460 |
(Continued from Connecting SITRANS LR 460 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.
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
Page 22 | SITRANS LR 460 – INSTRUCTION MANUAL |