WEG CFW-11 Programming Manual page 279

As a summary of this guide, a schematic of the connections of the CFW-11 for the PID regulator application,
as well as the setting of the parameters used in this example, are presented next.
15 DI1
DI3
17
18 DI4
COM
12
24VCC
13
DGND
11
+REF
1
Setpoint
via AI1 AI1+
2
≥5 kΩ
AI1-
3
-REF
4
AI2+
5
6 AI2-
XC1
PE
R
S
T
Isolating switch
Line
Figure 20.3 - Example of a CFW-11 application as a PID regulator
Table 20.2 - Parameter setting for the presented example
Parameter
P0203 = 1
P0527 = 0
P0524 = 1
P0238 = 1
P0237 = 1.000
P0239 = 0
P0528 = 250
P0529 = 1
P0220 = 1
P0222 = 0
P0525 = 80 %
P0230 = 1
P0205 = 10
P0206 = 9
P0207 = 2
P0536 = 1
P0227 = 1
P0263 = 1
P0265 = 22
P0266 = 2
P0236 = 3
P0520 = 1.000
P0521 = 0.043
P0522 = 0.000
Parameters already in the factory default.
(1)
Parameter configured automatically by the inverter.
(2)
Setpoint
via keypad
CFW-11 OFF
1
2
3
4
PE R S T U V W PE
Fuses
Description
Selection of the PID regulator function
PID action type (Direct)
(1)
AI2 feedback input
(1)
AI2 signal type (4 to 20 mA)
AI2 input gain
(1)
AI2 input offset
(1)
Process variable scale factor
Process variable decimal point (wxy.z)
(1)
Operation in remote situation
Reference selection (HMI)
PID Setpoint
Dead zone (On)
Reading Parameter Selection 1 (PID setpoint)
(2)
Reading Parameter Selection 2 (Process variable)
(2)
Reading Parameter Selection 3 (Motor Speed)
(2)
P0525 automatic setting (On)
(1)
Remote Run/Stop selection (DIx)
(1)
DI1 function (Run/Stop)
(1)
DI3 function: Manual/Automatic
(2)
DI4 function (General Enable)
AI2 input function (Process Variable)
(2)
PID proportional gain
(1)
PID integral gain
(1)
PID differential gain
(1)
PID Regulator [46]
4-20 mA
Pressure
Transducer
0-25 bar
DI1 – Run /Stop
DI3 – Manual / Automatic
ON
DI4 – General Enable
S1
PE W
Shield
Process
V U
20
20-7