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Installation and operating instructions • Drive for Wilo-Helix2.0-VE / Wilo-Medana CH3-LE • Ed.01/2022-06
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P electr = 8W
Symbol of main and partner pump
The home screen shows which pump is the main pump and which is the partner pump:
•
Main pump with pressure sensor mounted: Home screen as for single pump.
•
Partner pump without pressure sensor mounted: SL symbol in the setpoint display field.
In the "Active influences" area, two pump symbols are shown in double pump operation.
They have the following meaning:
Case 1 – Main/standby operation: Only main pump is running
Appears in the main pump’s display
Appears in the partner pump’s display
Case 2 – Main/standby operation: Only partner pump is running
Appears in the main pump’s display
Appears in the partner pump’s display
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Communication interfaces:
Setting and function
Overview of the terms in the display for selecting the external interfaces in the available
languages:
Universal
Display text
1.3
External interfaces
1.3.1
Relay output (SSM/SBM)
1.3.1.1
Relay function
1.3.1.2
SSM relay function (energized if...)
1.3.1.2/1
Fault present
1.3.1.2/2
Fault or warning present
1.3.1.2/3
Fault on double pump head present
1.3.1.3
SBM relay function (energized if...)
1.3.1.3/1
Motor running
1.3.1.3/2
Mains voltage present
1.3.1.3/3
Ready for operation
1.3.1.4
Double pump SSM relay function
1.3.1.5
Double pump SBM relay function
1.3.1.6
SSM relay forced control
1.3.1.6/1
Normal
1.3.1.6/2
Forced energized
1.3.1.6/3
Forced NOT energized
1.3.1.7
SBM relay forced control
1.3.1.7/1
Normal
1.3.1.7/2
Forced energized
1.3.1.7/3
Forced NOT energized
1.3.2
Binary input
1.3.2.1
Binary input function
1.3.2.1/1
Not used
1.3.2.1/2
External OFF
1.3.2.1/3
Lack Of water detection by switch
1.3.2.2
Double pump Ext. OFF function
1.3.2.2/1
System mode
