4 switch–on phase, 4 switch-on phase, Internal check of the electronics – VEGA VEGASON 66 Profibus PA User Manual

Page 28

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background image

PE

/ L
/ N

L1 N

1

2

1

2

3

4

BUS

Fig. 20: Wiring plan, double chamber housing

1

Voltage supply

2

Signal output

5.4 Switch-on phase

After VEGASON 66 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:

l

Internal check of the electronics

l

Indication of the instrument type, the firmware as well as

the sensor TAGs (sensor designation)

l

Status byte goes briefly to fault value

Then the current measured value will be displayed and the

corresponding digital output signal will be outputted to the

cable.

2)

2)

The values correspond to the actual measured level as well as to the set-

tings already carried out, e.g. default setting.

Wiring plan

Switch-on phase

Connecting to voltage supply

28

VEGASON 66 - Profibus PA

28789

-EN

-060731

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