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9. Connection diagrams
9.1. Connection diagram for PIREG-D2 with external solid-state relay
9.2. Connection diagram for PIREG-D2 with internal thyristors
9.3. RS232 / RS485 connection - interface
TxD:
Output at PIREG-D2
RxD:
Input at PIREG-D2
Preheat contact
Message relay 1
Set value input 0...10V
Calibration start
Act. val. output 0...10V
Control relay 2 NC
Control relay 2 C
Control relay 2 NO
Control relay 1 NC
Control relay 1 C
Control relay 1 NO
Preheat
GND
Reset
19
20
23
21
22
25
24
26
+5V
28
29
27
16
17
18
+5V
+5V
2
PIREG-D
OK
Rv1
1
2
5
3
4
7
6
8
9
ELR(+)
Start
GND
Ir
ELR(-)-AGND
Alarm output 1
Start contact
Alarm output 2
11
10
12
13
14
Ur
T1
T2
15
L1
L2/N
C
u
rr
e
n
t
tr
a
n
s
f.
H
e
a
ti
n
g
c
o
n
d
u
c
to
r
tr
a
n
s
fo
rm
e
r
W
e
ld
in
g
T
1
S
o
li
d
s
ta
te
r
e
la
y
4
I>
2
L
1
3
L2/N
1
L1
Mains connection
-
+
F
1
Preheat contact
Message relay 1
Set value input 0...10V
Act. val. output 0...10V
Calibration start
Control relay 2 NC
Control relay 2 NO
Control relay 2 C
Control relay 1 C
Control relay 1 NO
Control relay 1 NC
GND
Preheat
19
20
21
24
22
23
+5V
Reset
25
26
27
28
29
17
18
16
+5V
OK
+5V
PIREG-D
2
Rv1
1
2
3
6
5
4
ELR(+)
Start
GND
ELR(-)-AGND
Alarm output 1
Alarm output 2
7
11
10
8
9
Ur
Ir
Start contact
Welding
transformer
12
14
15
13
T1
L1
L2/N
T2
conductor
transf.
4
2
I>
Heating
3
1
Current
L2/N
L1
F1
M
a
in
s
c
o
n
n
e
c
ti
o
n
T
x
D
G
N
D
R
x
D
G
N
D