Wiring Proline Promag 55 PROFIBUS DP/PA
46 Endress+Hauser
4.3.2 Connecting the transmitter
#
Warning!
• Risk of electric shock.
Switch off the power supply before opening the device. Do not install or wire the device while it
is connected to the power supply. Failure to comply with this precaution can result in irreparable
damage to the electronics.
• Risk of electric shock.
Connect the protective ground to the ground terminal on the housing before the power supply is
applied (e.g. galvanically isolated power supply SELV or PELV).
• Compare the specifications on the nameplate with the local supply voltage and frequency. Also
observe the national regulations governing the installation of electrical equipment.
Procedure
1. Unscrew the connection compartment cover (a) from the transmitter housing.
2. Feed the power supply cable (b) and fieldbus cable (d) through the appropriate cable entries.
3. Perform wiring in accordance with the respective terminal assignment and the associated
wiring diagram.
–PROFIBUS DB å 31 ( ä 47) or å 32 ( ä 48)
–PROFIBUS PA å 33 ( ä 49)
"
Caution!
– Risk of damage to the fieldbus cable! Observe the information about shielding and grounding
the fieldbus cable ä 39.
– We recommend that the fieldbus cable not be looped using conventional cable glands. If you
later replace even just one measuring device, the bus communication will have to be
interrupted.
4. Screw the cover of the connection compartment (a) back onto the transmitter housing.
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