4 switch–on phase, 4 switch-on phase, Internal check of the electronics – VEGA VEGASON 66 Profibus PA User Manual
Page 28
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