8 switch-on phase – VEGA VEGABAR 67 Profibus PA User Manual
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5 Connecting to power supply
VEGABAR 67 • Profibus PA
36743-EN-130321
1 2 3 4
6
3
4
1
2
5
Fig. 25: Connection of the sensor in the housing socket
1 Brown
2 Blue
3 Yellow
4 White
5 Shielding
6 Breather capillaries
I2C
Display
1
1
2
5
6
7
8
Fig. 26: Wiring plan external electronics
1 Voltage supply
5.8 Switch-on phase
After VEGABAR 67 is connected to voltage supply or after voltage
recurrence, the instrument carries out a self-check for approx. 30
seconds. The following steps are carried out:
•
Internal check of the electronics
•
Indication of the instrument type, the firmware as well as the sen-
sor TAGs (sensor designation)
•
Status byte goes briefly to fault value
Then the current measured value will be displayed and the corre-
sponding digital output signal will be outputted to the cable.
2)
Terminal compartment,
housing socket
Wiring plan external
electronics
Switch-on phase