Possible Error Messages; Low Water; Overheating - Motor; Overvoltage - Xylem hydrovar hv 1.1 Operating Instructions Manual

15

Possible Error messages

15.1 Low Water

If incoming pressure is normal the unit restarts itself. If there is no external low water
protection (e.g. circulating systems), you have to bridge terminals X2/6 and X2/7.
15.2 Overheating – Motor
Error-Mot-Temp
overloaded. After the cause has been remedied, the malfunction has to be reset by
cutting off the power supply for >30 seconds.

15.3 Overvoltage

Error-Overvolt
switch heavy loads on the network, or RAMP 2 is to fast! Find the cause and take
countermeasures (e.g. network filter, RC-elements). Disconnect the power supply for
> 30 seconds (acknowledgement).

15.4 Undervoltage

Error-Undervolt
Disconnect the power supply for > 30 seconds (acknowledgement).

15.5 Overload

Error Overload
excess of its performance data.
Ramp 1 to fast: (see chapter 13.6.3)
Max. frequency to high: (see chapter 13.5.1)
Boost to low: (see chapter 13.5.3)
Disconnect the power supply for > 30 seconds (acknowledgement).
XXX
Error Water
XXX
XXX
XXX
XXX
Remedy:
Check incoming pressure
Possible causes: insufficient cooling,
ambient temperature is too high or motor
Possible cause: Check mains supply, supply
voltage too high, peak voltage owing to
Possible cause: Check mains supply, faulty
fuse or phase Unsymmetry.
Possible causes: false data settings or the
pump is working at a capacity significantly in
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