Ax34601a_e_A5.doc / Feb-06
Page 5 / 20
2.
Electrical Connections
*) This grounding terminal is internally connected to the GND potential. Grounding of this
terminal is not necessary, neither for safety nor for EMC reasons. With some applications
however it may be desirable to connect the measuring GND to another ground or earth
potential.
Please note that earthing of this terminal will tie to earth all internal analogue and digital GND
potentials. Multiple earthing should be avoided (e.g. if the minus pole of your DC power supply
should already be earthed externally)
2.1.
Power Supply
Terminals 1 and 2 provide DC supply from a 17 to 30 volts DC power unit. The current
consumption depends on the level of the input voltage and is typically 130 mA with 17 volts
and 80 mA with 30 volts (sensor current taken from the aux. output not included).
Terminals 0 VAC, 115 VAC and 230 VAC provide supply of the unit directly from the mains. The
total AC power rating is 7.5 VA.
2.2.
Auxiliary Power Output
Terminal 7 provides a 24 volts DC output (max. 100 mA) for supply of transducers or sensors.
This output is available with AC power supply and DC power supply as well.
1
GN
D
( 0
V )
2
+17
...
30
V
CD
3 4 5 6 7
8 9 10
GN
D
230
V
AC
115
V
AC
0 V
AC
In
pu
t A
In
put
B
GN
D a
na
l.
+2
4V
D
C
opt
io
na
l,
se
e*
)
GN
D
( 0
V )
GN
D a
na
l.
+/
- 1
0
V
0 /
4 -
20
m
A
DC
po
w
er
s
uppl
y
In
pu
ts
+/
- 10
V
or
0 /
4
- 20
m
A
au
x.
p
ow
er
ou
tp
ut
An
al
og
ue out
put
AC
po
w
er
s
uppl
y
