Wilo Control EC-WP Series Installation And Operating Instructions Manual page 35

6.6.16 "Constant pressure control p-c"
control mode: 1x pump, with pres-
sure sensor
p
2
Fig. 49: Functional diagram
1
6
Fig. 50: Screen display
Function
Terminal overview symbol
Float switch operating principle
Top contact
Bottom contact
Menu and value to be set
Installation and operating instructions • Wilo-Control EC-WP • Ed.01/2024-08
1 Activation point
2 Deactivation point
The pressure sensor detects the actual pressure value. The pump is switched on and off de-
pending on the set thresholds:
• If the pressure in the system falls below the activation threshold, the pump switches on.
• If the deactivation threshold is exceeded, the pump switches off after the set switch-off
1
delay has elapsed.
To protect the pump from a dry run, install an additional float switch or electrode in the well:
• If the water level falls below the dry running level, the pump switches off. An error mes-
Q
sage appears on the display and an alarm sounds.
• If the dry-running level is exceeded, the alarm and error message are automatically reset.
1 Current pump status
3 Control mode
3 4 Current pressure in the tank
6 Fieldbus active
4
Overview of terminals
DR -
25 26 27 28
1/(2)
closed −
open −
Required menu settings
NOTICE! The values shown in menus 5.11 and 1.01 correspond to the factory setting.
Enter the system-specific values here.
- -
29 30 31 32
off
on/(off)
1 2
1/(2)
− −
− −
- - Pressure
sensor
33 34 35 36 45 46
4-20 mA
In
off
on/(off)
2 2
− − −
− − −
en
-
49 50
2
-
-
35