4 Wiring PROline Prosonic Flow 93 PROFIBUS-DP/-PA
54 Endress+Hauser
4.6 Post-connection check
Perform the following checks after completing electrical installation of the measuring
device:
Device condition and specifications Notes
Are cables or the device damaged (visual inspection)?
Electrical connection Notes
Does the supply voltage match the specifications on the nameplate? 85...260 V AC (45...65 Hz)
20...55 V AC (45...65 Hz)
16...62 V DC
Do the cables comply with the specifications? PROFIBUS-DP
Page 41
PROFIBUS-PA
Page 44
Sensor cables
Page 47
145
Do the cables have adequate strain relief?
Are the cables correctly segregated by type?
Without loops and crossovers?
Are the power supply and sensor cables correctly connected? See the wiring diagram inside
the cover of the terminal
compartment
Are all screw terminals firmly tightened?
Have the measures for grounding/potential equalisation been
correctly implemented?
see Page 51 ff.
Are all cable entries installed, firmly tightened and correctly sealed? see Page 52
Are all the housing covers installed and tightened?
Electrical connection PROFIBUS-DP/-PA Notes
Are all the connecting components (T-boxes, junction boxes,
connectors, etc.) connected with each other correctly?
–
Has each fieldbus segment been terminated at both ends with a bus
terminator?
–
Has the max. length of the fieldbus cable been observed in
accordance with the PROFIBUS specifications?
PROFIBUS-DP
Page 41 ff.
PROFIBUS-PA
Page 45
Has the max. length of the spurs been observed in accordance with
the PROFIBUS specifications?
PROFIBUS-DP
Page 42
PROFIBUS-PA
Page 45
Is the fieldbus cable fully shielded and correctly grounded? see Page 42