8
G
EGH102F901
Rev. 2022 - V18
1
2
3
13
11
12
free
GND
UB+ supply voltage 24V AC/DC
Normally open contact
(no dew)
Breaker
(dew)
changeover
(24 V)
1
2
3
13
11
12
free
GND
UB+ supply voltage 24V AC/DC
Normally open contact
(no dew)
Breaker
(dew)
changeover
(24 V)
Connecting diagram
(condensation)
r.H. > 93 %
Connecting diagram
(no condensation)
r.H. <
93 %
Schematic diagram
SUPPLY VOLTAGE :
For operating voltage reverse polarity protection, a one-way rectifier or
reverse polarity protection diode is integrated in this device variant.
This internal one-way rectifier also allows operating 0 - 10 V devices on AC
supply voltage.
The output signal is to be tapped by a measuring instrument. Output
voltage is measured her against zero potential (O V) of the input voltage!
When this device is operated on
DC supply voltage
, the operating voltage
input UB+ is to be used for 15...36 V DC supply and UB – or GND for
ground wire!
When several devices are supplied by one 24 V
AC voltage supply
, it is to
be ensured that all ”positive“ operating voltage input terminals (+) of the
field devices are connected with each other and all ”negative“ operating
voltage input terminals (–) (= reference potential) are connected together
(in-phase connection of field devices). All outputs of field devices must be
referenced to the same potential!
In case of reversed polarity at one field device, a supply voltage short-
circuit would be caused by that device. The consequential short-circuit
current flowing through this field device may cause damage to it.
Therefore, pay attention to correct wiring!
Connecting scheme
Parallel operation
Circuitry
Circuitry
0...10V
0V/GND
0...10V
0V/GND
Power supply
AC 24V~
0V
DC 15-36V = GND
Connecting scheme
Individual operation
Circuitry
0...10V
0V/GND
V
Power supply
AC 24V~
0V
DC 15-36V = GND
1 2 3
13 11 12
Normall
y
open
cont
act
LED
Br
eak
er
Switchpoint
ca. 93% r.H.
UB+ 24V A
C/DC
GND
fr
ee
Short LED pulses =
relay active =>
below switchpoint
Long LED pulses =
relay inactive =>
above switchpoint
8
