7 switch–on phase, 7 switch-on phase – VEGA VEGADIS 62 User Manual

Page 21

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Hence terminals 1 and 2 on the VEGADIS 62 must be closed with a
bridge.

1

2

+

( )

(-)

3

4

+

( )

(-)

1

2

3

Fig. 15: Bridge on terminals 1 and 2 on the VEGADIS 62

1

Bridge

2

VEGADIS 62

3

Signal conditioning instrument

5

.7 Switch-on phase

During the start-up process, the VEGADIS 62 tries automatically to get
in contact with the connected sensor via HART and to accept the
settings (unit, adjustment and damping) of this sensor. During
connection, the status line displays "CONNECT HART".

If a HART sensor is identified, then the HART symbol is displayed. The
VEGADIS

62 switches to HART mode and and starts operation with

the settings accepted from the sensor.

Note:
This procedure is repeated whenever the voltage supply is connected.

If during the start process an individual key is pressure or if the
instrument has not identified within approx. 70 seconds a HART
sensor, then the digital indication switches to basic mode and starts
operation with the default settings.

If the HART address is modified by the control system during
operation, a new connection is established, however, the sensor must
answer immediately in order for the connection to be set up.

VEGADIS

62

21

5 Connecting to power supply

36469

-

EN

-120329

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