7 switch-on phase – VEGA VEGAPULS SR 68 Profibus PA User Manual
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5 Connecting to power supply
VEGAPULS SR 68 • Profibus PA
38296-EN-130624
Contact pin
Colour connection ca-
ble in the sensor
Terminal, electronics
module
Pin 1
Brown
5
Pin 2
White
6
Pin 3
Blue
7
Pin 4
Black
8
5.6 Wiring plan - version IP 66/IP 68, 1 bar
1
2
Fig. 37: Wire assignment fix-connected connection cable
1 brown (+) and blue (-) to power supply or to the processing system
2 Shielding
5.7 Switch-on phase
After VEGAPULS SR 68 is connected to the bus system, the instru-
ment carries out a self-test for approx. 30 seconds. The following
steps are carried out:
•
Internal check of the electronics
•
Indication of the instrument type, hardware and software version,
measurement loop name on the display or PC
•
Indication of the status message "F 105 Determine measured
value" on the display or PC
•
Status byte goes briefly to fault value
As soon as a plausible measured value is found, it is outputted to the
signal cable. The value corresponds to the actual level as well as the
settings already carried out, e.g. factory settings.
Wire assignment, con-
nection cable