PMA Digital 280-1, Operating Manual

Page: 6 / 52

2 Electrical connections
2.1 Connecting diagram
* Safety switch mA i V in position left
g
The indicator is provided with screw terminals from 0,5 to 2,5mm².
2.2 Terminal connection
Power supply connection 1
See chapter 10 "Technical data"
Connection of input INP1 2
Input for variable x1 (process value)
a thermocouple
b resistance thermometer (Pt100/ Pt1000/ KTY/ ...)
c potentiometer
d current (0/4...20mA)
e voltage (-2,5...115/-25...1150/-25...90/ -500...500mV)
f voltage (0/2...10V/ -5...5V)
Electrical connections
6 Connecting diagram Digital 280-1
U
Logic
di2
di3
U
T
Option
RXD-B
GND
RXD-A
TXD-B
TXD-A
RS485 RS422
Modbus RTU
RGND
DATA B
DATA A
L
N
90...250V
24V AC/DC
di1
INP1
OUT3
OUT2
OUT1
1
7
5
8
6
9
10
11
12
13
14
15
4
3
2
1
7
5
8
6
9
10
11
12
13
14
15
4
3
(2)
17
16
7
8
9
di1
V*
-
+
mA
-
+
100%
0
+
mV
-
+
1
3
4
5
2
6
7
6
a b c d e f
8
g h i