A SERVICE OF

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12
2 - Electrical connections
D For mA, mV
Rj >10M
D1 With 2 wires transducer
D2 With 3 wires transducer
[1] Auxiliary power supply for external
transmitter 18V– ±20% /30mA max.
without short circuit protection
external shunt
2.5
Transducer
18V–
9
5
6
PV
[1]
18V–
4…20mA
external shunt 2.5
Transducer
PV
9
5
6
[1]
mV
mA
5
6
External
Shunt 2.5
2.3.2 PV CONTROL INPUT
B
2.3.3 AUXILIARY INPUT
(option)
B
For current transformer CT
Not isolated
For the measure of the load cur-
rent (see page 34)
Primary coil10A…100A
Secondary coil 50mA default
100mA jumper selectable
18
17
10…100A50/100mA
load
CT
~
5 watt burden resistor
0.5 for 1A secondary
transformer coil
0.1 for 5A secondary
transformer coil
Jumper for
100 mA
secondary
transformer coil
2.3.4 DIGITAL INPUT
(option) (page 37)
B
The input is active when the
logic state is ON, correspond-
ing to the contact closed
The input is inactive when the
logic state is OFF, correspond-
ing to the contact open
11
10
9
TTL
open
collector
NPN
open collector
Isolated
contact
Com.
DI 1
C1