VEGA VEGAPULS 56 Profibus PA - Manual (Page 77)

VEGAPULS 56 Profibus PA 77
8 Technical data
8.1 Data
Power supply
Supply voltage 9 … 32 V DC)
(output voltage U
O
of the segment dependent on the segment coupler applied)
coupler) see PA specification, e.g.
- non-Ex 22 V DC (nominal voltage of the segment
coupler) max. 32 sensors on one two-wire
cable
- Ex 15 V DC nominal voltage of the segment
coupler, max. 10 sensors on one two-wire
cable (typical 8 sensors)
Current consumption constant 10 mA (no leakage current output)
Load dependent on segment coupler, see
technical data of the segment coupler and
Profibus specification
Unit and measuring range 1)
Unit distance between product surface and
process fitting (e.g. lower flange side of the
sensor)
Standard 0 … 20 m
Measuring range
Measurement in standpipe
- VEGAPULS 56 on DN 50
0 … 16 m
- VEGAPULS 56 on DN 100 0 … 19 m
Output signal
- digital (Profibus PA) digital output signal in two-wire technology:
The digital output signal (meas. signal) is
modulated to the power supply and further
processed in the PLC or processing system;
max. 32 sensors on one two-wire cable
l(Ex: max. 10).
Integration time 0 … 999 seconds (adjustable)
Display indication
Indication - optional integrated, scalable, analogue and
digital display of measured values
- optional external display of measured values,
up to 25 m separated and powered by the
sensor. The external indication (VEGADIS 50)
can be mounted in Ex area.
The four-wire cable to the external indicating instrument VEGADIS 50 must be screened,
see "5 Electrical connection“.
Technical data