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50
Installation and operating instructions • Drive for Wilo-Helix2.0-VE / Wilo-Medana CH3-LE • Ed.01/2022-06
Lack of water
detection
Lack of water detection
by switch: ON/OFF
Lack of water detection:
activation delay
Lack of water detection:
deactivation delay
The function can be switched ON and OFF
If the function is switched ON, the following additional settings appear in the Menu:
Lack of water detection: activation delay
->The delay time is configured in seconds.
Lack of water detection: deactivation delay
->The delay time is configured in seconds.
In order to activate the system, the binary input function “Lack of water detection by switch”
must be enabled in
Binary input function
Not used
External OFF
Lack of water
detection by switch
Menu Settings
Universal
Displaytext
1.3
External interfaces
1.3.2
Binary input
1.3.2.1
Binary input function
1.3.2.1 / 3
Lack Of water detection by switch
1.
External interface
2.
Binary Input
3.
Binary Input function
4.
Lack of water detection by switch
See also Chapter 13.3 "Application and function of the digital control input DI 1”
NOTICE
The binary input usage will be automatically configured to "unused" when
the function “Lack of water detection by switch” is switched off.
12
Double pump operation
Overview of the terms in the display for selecting the double pump management in the
available languages:
Universal
Display text
1.4
Double pump management
1.4.1
Connect double pump
1.4.1.1
Double pump partner address
1.4.1.2
Establish double pump pairing
1.4.2
Disconnect double pump
1.4.3
Double pump function
1.4.3.1
Duty/Standby
1.4.4
Pump cycling
1.4.4.1
Time-based pump cycling: ON/OFF
1.4.4.2
Time-based pump cycling: interval
1.4.4.3
Manual pump cycling
12.1
Function
All Helix2.0 VE and Medana CH3-LE are equipped with an integrated double pump manage-
ment.
In the “double pump management”, a connection can be established or disconnected. The
double pump management has the following functions:
Main/standby operation
Each of the two pumps provides the configured flow rate. The other pump is available in
case of malfunction or runs after pump cycling. Only one pump runs at a time (factory set-
ting).
Pump cycling
