Xylem HV 1.1 - 1.2 - Manual (Page 56)

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15.6 Overheating of the heat sink
XXX
Error KK-Temp
The thermal sensor, mounted on the cooling
body of the HYDROVAR indicates over
temperature. Possible causes: insufficient cooling, ambient temperature is too high or
motor overloaded. After the cause has been remedied, the malfunction has to be
reset by cutting off the power supply for >30 seconds.
15.7 Sensor fault
XXX
Sensor Fault
The voltage level of the incoming analogue
input signal is supervised.
If the signal falls below the 0,5VDC-level, an Error will be displayed.
Possible causes: break of the sensor cable or the sensor itself, bad connection of the
plug of the sensor. After the cause has been remedied, the malfunction has to be reset
by cutting off the power supply for >30 seconds.
15.8 Conveyor limit fault
XXX
Error Water
The value of the programmed Conveyor limit
is not reached within the programmed delay
time Error Delay( see chapter 13.11.1 and 13.11.2).
Possible causes can be: break of the pipe before or after the pump, closed valve before
the pump, air in the pump. After the cause has been remedied, the malfunction has to
be reset by cutting off the power supply for >30 seconds.
15.9 Additional internal processor Error messages:
ERROR 1 : EEPROM-ERROR
(corresponding data block malfunction)
ERROR 2 : Not used
ERROR 3 : Processor RAM error
ERROR 4 : Not used
ERROR 5 : Processor ROM error
ERROR 6 : Watchdog error
ERROR 7 : Clock error (quarz)
ERROR 8 : Programme error
These ERROR signals are acknowledged by disconnecting the power supply for
> 30 seconds.
If the error signal should appear again, contact customer service and provide a
detailed description of the error.