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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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To avoid starting the motor when switching on the power supply during initial commis-
sioning:
A cable bridge is set at the factory at digital input DI 1. The DI 1 is factory-installed as Ext.
Off active. To prevent the motor from starting up for the first time, the cable bridge must
be removed before the power supply is switched on for the first time.
After initial commissioning, the digital input DI 1 can be set as required via the initialised
display. If the digital input is switched to inactive, the cable bridge does not have to be set
again to start the motor. See section 13.3 "Application and function of the digital control
input".
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
Fig. 17:
9.2
Description of the operating ele-
ments
Fig. 18: Operating elements
Item
Designation
Explanation
1
Graphic display
Provides information about settings and pump status.
User interface for setting the pump.
2
Green LED indicator
LED lights up: Pump is supplied with voltage and ready for operation.
There are no warnings and no faults.
3
Blue LED indicator
LED lights up: Pump is influenced externally via an interface, e.g. by:
•
Setpoint specification via analogue input AI 1 ... AI 2
•
Intervention of building automation via binary input DI 1 or bus com-
munication
Flashes with active double pump connection.
4
Operating button
Navigate menus and edit content by turning and pressing.
5
Back button
Menu navigation:
•
To go back to the previous menu level (briefly press once).
•
To go back to the previous settings (briefly press once).
•
Return to the main menu (press and hold 1 x, > 2 seconds).
Switches the key lock (*) on or off (> 5 seconds) when pressing the oper-
ating button.
Table 8: Description of operating elements
