bar is used, this range corresponds to an actual value signal range of 0 - 100 %. If the
required setpoint is, for example, 4.5 bar, a setpoint of 75 % would have to be
specified. The unit of setpoint and actual value is defaulted to [%].
Table 48: Parameters for unit of setpoint and actual value
Parameter Description
Possible settings
Factory setting
3-2-2-1
Physical unit of setpoint
1
3-2-2-2
Physical unit of flow rate (Q)
29
3-2-2-3
Physical unit of pressure
1
3-5-1-3
Maximum setpoint
For unit %: Select 100 %
For units bar, m, m
3
/h,...: Set to
full-scale value of the sensor,
e.g. 6 bar
100
7.1.1.3
Open-loop control mode
In open-loop control mode, PumpDrive translates the specified setpoint into the
corresponding motor speed. The process controller is deactivated. PumpDrive starts
up in automatic mode if digital input 1 is supplied with +24 V DC (terminal strip
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
P 4
P 7
2
0V
S
ig
na
l
3
4
Fig. 25: Terminal wiring diagram, open-loop control mode (dashed line = optional)
1
Start/stop
2
External setpoint signal
(
3
Signal relay 1
(
4
Signal relay 2
(
Table 49: Open-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
7 Commissioning/shutdown
PumpDrive
51 of 162