Italtecnica Nettuno 2.0 Manual De Instrucciones página 47

9.2 Reduction index on At
9.3 Reduction index on
Mt
9.4 Fan stop delay
9.6 Vin min.
9.7 Vin max
9.9 Variable debug
ALARMS
In the event of system anomalies or malfunctions, one of the following screens will appear on Nettuno display. Each
error is coded with the letter "E" followed by a number from 0 to 13. The number which appears in brackets
represents the number of recurrences of each error. To reset an alarm, after having resolved the cause, it usually
sufficient to press the central "reset" key or interrupt the electrical power supply for a few seconds.
E0 Input voltage
Low (
E1 Input voltage
high (
E2 Output Short
circuit (
checked as soon as possible by skilled personnel. The error may only be removed by disconnecting the equipment
from the electrical power source and resolving the cause of the fault. Attempting to restart the inverter in the
presence of a short-circuit in output may cause serious damage to the equipment and be a source of danger to the
user.
E3 Pump dry
Running (
E4 Ambient over
temp. (
E5 Module over
Temp (
frequency.
Frequency reduction index on ambient
temperature
Frequency reduction index on module
temperature
Fan shutdown delay after pump stop
Minimum
threshold
Maximum
threshold
Debug variable selection for process
value display
E0 – Low voltage: indicates that the power supply voltage is too low.
Check the input voltage value
0)
E1 – High voltage: indicates that the power supply voltage is too high.
0)
Check the input voltage value
E2 - Short Circuit: This message will appear on the screen when a short
circuit is detected on inverter output; this may occur following incorrect
connections of the electric motor, damage to the electrical insulation in the
0)
wires connecting the electric pump to the device or a fault in the pump's
electric motor. When this error appears, the electrical system should be
E3 - Dry running: this message appears when the system is stopped
following a pump intake water shortage. If the auto-reset function has been
enabled, Nettuno will carry out automatic attempts to check for the
0)
availability of water. To clear the error status, press the central "reset" key.
E4 – Ambient temperature: the error appears if the maximum internal
ambient temperature of the inverter is exceeded. Check the conditions of
operation of the inverter
0)
E5 - IGBT module over temperature: the error appears if the maximum
temperature of the IGBT module of the inverter is exceeded. Check
operating conditions of the inverter, and in particular the cleanliness of the
forced air ventilation system, the current absorption of the pump and the
0)
ambient temperature. If necessary, attempt to reduce the switching
power supply voltage
power supply voltage
.
47
1
1
10
0