7 switch-on phase – VEGA VEGAPULS SR 68 Foundation Fieldbus User Manual

Page 36

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5 Connecting to power supply

VEGAPULS SR 68 • Foundation Fieldbus

38297-EN-130624

Contact pin

Colour connection ca-

ble in the sensor

Terminal, electronics

module

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

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