User manual - RATEMETER STI-94
a)
b)
Figure 4.15. Examples of suppression circuit connection:
a) to relay terminals; b) to the inductive load
Construction of pulse input allows connecting of inductive or optical sensor with common earth
(Figure
), without additional intermediary circuits (sensor
with NPN or PNP type output).
a)
b)
Rys. 4.16. An example of sensor connection:
a) with common earth, b) with common plus
15
!
N
3 4
3 4
L
L
N
!
COM
+
-
PNP type sensor
+
-
Uo
16
31
17
32
18
33
19
34
20
35
n.c.
pulse
input
n.c.
n.c.
5 6 7 8 9
COM
+
-
NPN type sensor
+
16
31
17
32
18
33
19
34
20
35
n.c.
pulse
input
n.c.
n.c.
5 6 7 8 9
-
+
Uo
