VEGA VEGAPULS 81 - Manual (Page 52)

52 VEGAPULS 64 and 81
Electrical connection: Connection diagram VEGAPULS 81
VEGAPULS 81 FA and VEGAPULS 81 DA, digital output signal (VBUS) EEx ib
Supply and output signal via separator intrinsically safe on a four-wire line.
VEGAPULS 81 FB and VEGAPULS 81 DB, digital output signal (VBUS) EEx e
Up to five sensors with supply and output signal in EEx e on one two-wire line.
VEGAPULS 81 FC and VEGAPULS 81 DC, digital output signal (VBUS) EEx e
Separate supply, up to 15 sensors with their output signal (VBUS) on one two-wire line, two-wire
line of the supply and two-wire line of the signal output in "e".
5 6 7 8 1 2 3 4
+5V SCL GND SDA + – + –
4
3
2
1
+
–
+
–
– z30
+ z32
– d32
+ d32
– 4
+ 3
– 2
+ 1
5 6 7 8 1 2 3 4
+5V SCL GND SDA U+ U-
4
3
2
1
+
–
5 6 7 8 1 2 3 4
+5V SCL GND SDA U+ U- + –
4
3
2
1
+
–
+
–
for optional
external
indication
(VEGADIS 10)
for optional
external
indication
(VEGADIS
10)
for optional
external
indication
(VEGADIS
10)
20 … 36 V DC
20,5 … 26,5 V AC
90 … 250 V AC
Digital output signal
(VBUS) to the signal
conditioning instru-
ment VEGAMET or
VEGALOG
Supply and digital
output signal (VBUS)
from and to the
signal conditioning
instrument
VEGAMET or
VEGALOG
Supply and digital
output signal
(VBUS) from
separator
VEGATRENN 547
or
from safety barrier
type 146 or
VEGATRENN 546
(ia)
(ib)
(ia)
(e)
(ia)
(e)
(e)