Wilo Helix2.0-VE, Инструкция по установке и эксплуатации

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Installation and operating instructions • Drive for Wilo-Helix2.0-VE / Wilo-Medana CH3-LE • Ed.01/2022-06 79
Code Error Cause Remedy
414 Discharge pressure too low. Discharge pressure too low. Check the pipe system installa-
tion.
Check and adjust if needed set-
ting of Min. pressure detection.
Additional information about causes and remedy:
• Additional information about causes and remedy: The pump is delivered high flow and can’t reach
minimum pressure due to breaking pipe on the installation.
415 Suction pressure too low. Pressure on suction side to low. Check if the pressure network is
sufficient.
Check and adjust if needed set-
ting of limit for lack of water de-
tection by sensor.
Check and adjust if needed set-
ting of pressure sensor type
(absolute or relative).
Additional information about causes and remedy:
Pressure on suction side is too low due to:
• high flow on delivery side and:
–
a too small pipe on suction side,
–
with a lot of elbow on suction side
• water level in well is too low.
416 Lack of water. Lack of water on suction side. Check water level in tank.
Check functionality of level
switch.
420 Motor or electronic module de-
fective. Motor or control module faulty. Replace motor and/or control
module.
Additional information about causes and remedy:
• The pump cannot determine which of the two component is defective.
Contact service.
421 Electronic module defective. Electronic module defective. Replace the electronic module.
Additional information about causes and remedy:
• Contact service.
Table 19: Error message
18.4 Warning messages Display of a warning in graphical display
• The status display is marked in yellow.
• Warning message, warning code (W...).
Warnings indicate restricted pump function.
The pump continues to operate in restricted mode (emergency operation). Depending on
the cause of the warning, emergency operation may result in a restriction of the control
function, up to and including a return to a fixed speed.
If the pump identifies as part of permanent monitoring that the cause of the warning no
longer applies, the warning message is revoked and operation resumes.
If a warning message is output, the display is permanently on and the green LED indicator is
off.
Code Warning Cause Remedy
550 There is flow through the pump
in the opposite direction of flow. External influences cause flow
against the direction of the
pump’s flow. Check power control of the
pumps, install check valve if
needed.
Additional information about causes and remedy:
• If flow passing through pump in the opposite direction is too strong, the motor can no longer start.