Lenze 8200 Frequency inverters - Manual (Page 124)

Commissioning
8200SHB0199 5-19
Sensor connection
3-phase pressure sensor
+ -
7
8
+
-
~
2

‚
ƒ
1.DC mains supply, e.g. 24 V
2.Pressure sensor
0 - 10 V (jumper 1-2)
0 - 20 mA (jumper 5-6)
4 - 20 mA (jumper 5-6, C034 = 1)
3.Controller
2-phase pressure sensor
+ -
7
8
+
-
~
2

‚
ƒ
1.DC mains supply, e.g. 24 V
2.Pressure sensor
4 - 20 mA (jumper 5-6, C034 = 1)
250 R load
3.Controller
3-phase pressure sensor with supply via controller
28
20
39
7
8
+
-

‚
RFR
Vcc
GND 2
GND 1
1.Pressure sensor
4 - 20 mA (jumper 5-6, C034 = 1)
250 R load
2.Controller
Note:
Since terminal 20 can be loaded with max.
20 mA, the digital inputs
E1 ... E4 must not be addressed.
Application FIG 5-2:
A centrifugal pump is used to ensure constant pressure in a pipeline system (e.g.
for water supply of residential and industrial premises).
The application does not only require remote control from a central operating panel
but also setting possibilities at site. The pressure is to be reduced to a fixed value
during times when only few water is required. Thus, indirectly possible burst pipes
can be detected by monitoring the actual pressure.
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