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Installation and operating instructions • Drive for Wilo-Helix2.0-VE / Wilo-Medana CH3-LE • Ed.01/2022-06
Main pump
Partner pump
3
Active
Off
OFF
Override
OFF (DI1)
Not active
On
OK Normal op-
eration
4
Not active
On
OK Normal op-
eration
Not active
On
OK Normal op-
eration
Combined mode
The control input of the main pump and the control input of the partner pump are each as-
signed a control cable and are each configured on Ext. OFF. The control input of the main
pump switches off both double pump partners. The control input of the partner pump only
switches off the partner pump. If the main pump fails or the double pump connection is in-
terrupted, the control input of the partner pump is evaluated.
Main pump
Partner pump
States
Ext. OFF
Pump motor
behaviour
Display:
Text at Active
influences
Ext. OFF
Pump motor
behaviour
Display:
Text at Active
influences
1
Active
Off
OFF
Override
OFF (DI1)
Active
Off
OFF
Override
OFF (DI1)
2
Not active
On
OK Normal op-
eration
Active
Off
OFF
Override
OFF (DI1)
3
Active
Off
OFF
Override
OFF (DI1)
Not active
Off
OFF
Override
OFF (DI1)
4
Not active
On
OK Normal op-
eration
Not active
On
OK Normal op-
eration
NOTICE
The pump is switched on or off in regular operation via the DI input via Ext.
OFF is preferable to switching the mains voltage.
NOTICE
The 24 V DC power supply is only available if the analogue input AI 1 or AI
2 has been configured for a type of use and a signal type or if the digital
input DI 1 has been configured.
13.4
Application and function of the
analogue inputs AI1 and AI2
The inverter has two analog inputs AI 1 and AI 2, which can be used for setpoint input or
actual value input. The allocation of the setpoint and actual value specifications is depend-
ing on the selected control mode.
Set control mode
Function Anlogue input
AI 1
Function Anlogue input
AI 2
Dp-v
Configured as actual value input:
•
Type of use: differential pressure sensor
Configurable:
•
Signal type
•
Sensor measuring range
Not Configured.
Can be used as setpoint input
Содержание Helix2.0-VE
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