PumpDrive
∆
∆p
∆n
∆
∆
U[V,f]
p
setpoint
Controlled system
p
Speed controller
actual
p
Process controller
(PI controller)
actual
(PI controller)
Fig. 28: Closed-loop control mode block diagram
G
N
D
D
I6
D
I5
D
I4
D
I3
D
I2
D
I1
+
24
V
A
G
N
D
A
N
-O
U
T
20
19
18
17
16
15
14
13
12
11
1
A
G
N
D
A
IN
1
G
N
D
A
IN
2
+
24
V
N
O
2
C
O
M
2
N
O
1
C
O
M
1
10
9
3
1 2
4 5 6 7 8
Sensor
4...20mA
P 4
P 7
5
2
0V
S
ig
na
l
3
4
Fig. 29: Terminal wiring diagram, closed-loop control mode (dashed line = optional)
1
Start/stop
2
External setpoint signal
(
3
Signal relay 1
(
4
Signal relay 2
(
5
External sensor signal
(
Table 54: Closed-loop control mode
Function
Input/connection
Specification
Setting range/parameter value
Setpoint
specification
P7 terminal strip
Analog input 1 (P7: 9/10)
5-10 V DC
≙
25-50 Hz
Graphical control
panel
Configurable setpoint
(3-5-2-1)
50 - 100 %
≙
25 - 50 Hz
Standard control
panel
50 - 100 %
≙
25 - 50 Hz
Field bus
See field bus module literature
Start
command
P4 terminal strip
Digital input 1 (P4: 13/14)
Start in automatic mode
Field bus
See field bus module literature
Process
controller
Graphical control
panel
PI Auto (3-9-1-6)
Deactivated
Process
controller
Graphical control
panel
PI mode (3-9-1-1)
Disabled
Operating
mode
Graphical control
panel
MAN-OFF-AUTO
AUTO
Process
controller
Graphical control
panel
PI mode (3-9-1-1)
Enabled
7 Commissioning/shutdown
PumpDrive
55 of 162