Lenze 8200 Frequency inverters - Manual (Page 123)

Commissioning
8200SHB0199 5-18
5.5 Application examples for PID controllers
5.5.1 Pump application with pressure control
K14
K12
K11
Ctrl.
enable
Down
JOG
L
M
3~
Frequency inverter 8210/8220/8240
Pressure setpoint
e.g. from PC/PLC/
keypad
Fault message
e.g. PLC
Analog display for
actual pressure
Actual pressure
-
+
p
Pressure sensor
0 ... 10 V, 0/4 ... 20 mA
(external aux. energy/
supply required
Pump
W
K35.0144_gba
V
U
Z1
K1
F1
Z2
L1L2L3
Up
H/RE
28
E1
E3
E2
E4
20
62
7
8
9
X1
2101
W
V
U
G -U
G +U
L1
L2
L3
PE
FIG 5-2 Application of a pump with pressure control
Z1 Mains filter required for radio interference level A or B. For mains chokes see chapter 3.4 ff.
Z2 Motor filter/sine filter required for long motor cables or motors not designed for inverter operation
(see chapter 4.2.7.2).
Shield all signal and motor cables. Please observe the corresponding installation instructions in chapters 4.2 and 4.3.
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