CTT8
instruction manual
IM302-U v2.3
pag. 2 / 8
WIRING CONNECTION
Input thermometric probes Pt 100
Se
ri
a
l
output
Rs
4
8
5
(opti
o
n)
R
elay
o
u
tputs
*
Auxiliary power supply
U aux:
25 - 27: 24 ÷ 230V ca/cc
or
25 - 26: 115 Vca
25 - 27: 230 Vca
25 - 28: 400 Vca
white
red
red
Pt 100
view rear panel
of the instrument with terminals
for the connections
A
nalog
output
0-
20m
A
(4
-20m
A
)
(opti
o
n)
7
5
8
6
9
1
4
10
2
11
3
12
25
28
26 27
44 45 41 42 43
29 30 31 32 33 34 35 36 37 38 39 40
19
17
20
18
21
13
16
22
14
23
15
24
Input thermometric probes Pt 100
Ch2
Ch3
Ch4
7
5
8
6
9
1
Ch1
4
10
2
11
3
12
38
39
40
41
42
43
44
45
25
26
27
28
B
A
gnd
U
aux
.
CTT8
*
+
-
Ch7
Ch6
Ch5
14
17
Ch8
13
16
18
15
19
20
21
22
23
24
TR
IP
ALAR
M
29
30
31
32
33
34
35
36
37
