Lenze E82xVxxxKxxxxx - Manual (Page 505)

Application examples
Pressure control
Example 2: Simple pressure control with changeable setpoint selection
15
l
505 EDS82EV903 EN 3.0
15.1.2 Example 2: Simple pressure control with changeable setpoint selection
The actual value is supplied via the analog input of the standard I/O
0 and linked to the
controller input (PCTRL−ACT).
The setpoint is defined with the motor potentiometer function
1 and supplied to the
process controller via the controller input (PCTRL1−NADD). This value is added to the value
from the speed feedforward control (NSET1). This requires the output of the speed
feedforward control (NSET1−NOUT) to be zero.
PCTRL1 DCTRL1-QSP DCTRL1-CINH
C0412/3
PCTRL1-NADD
C0105
C0220
C0221
+
C0181
PCTRL1-SET2
C0049
PCTRL1-RFG1
2
0
C0412/5
PCTRL1-ACT
C0412/4
PCTRL1-SET1
1
PCTRL1-SET3
C0145
C0071
C0070
C0072
1 >
C0410/18
PCTRL1-I-OFF
C0410/21
PCTRL1-STOP
C0410/19
PCTRL1-OFF
DFIN1
STOP
Imax,
Auto-DCB,
LU, OU
1 >
0 1
CINH, DCB
C0074
C0184
RESET
+
0
2
1
C0238
C0011
-C0011
PCTRL1-NOUT
PCTRL1-OUT
PCTRL1-QMIN
PCTRL1-NMIN
C0010
PCTRL1-ACT
C0017
PCTRL1-SET=ACT
PCTRL1-SET
NSET1-NOUT
C0138
C0239
DCTRL1
2
0,1
C0238
C0051
+
2
1
PCTRL1-SET3
0
AIN1
+
AIN1-GAIN
+
AIN1-OFFSET
C0414/1
C0413/1 C0010 C0034
A
D
X3
AIN1-OUT
8
7
MPOT1
MPOT1-OUT
C0265
C0410/7
MPOT1-UP
C0410/8
MPOT1-DOWN MPOT1-QSP
C0011
C0010
C0265=3,4,5
MPOT
INIT
DIGIN1
X3
1
1
0
E1
E2
E4
E3
C0411
1
0
8200vec544
Fig. 15−2 Signal flow − overview