umbra pompe 3 ACUASPEED, Operating Instructions Manual, Page: 11 / 96

E0 ( 0)
Lo.Volt
E1 ( 0)
Hi.Volt
E2 ( 0)
Shortcir
E3 ( 0)
Dry run
E4 ( 0)
Amb.Temp
E5 ( 0)
IGBTtemp
E6 ( 0)
Overload
E8 ( 0)
Ser.Err.
E9 ( 0)
Ov.Pres
E10( 0)
Ext.Err
E11( 0)
Start/H
E12( 0)
Err.12V
E13( 0)
Pres.Sen
ALARMS
In the event of system anomalies or malfunctions, one of the following screens will appear on the inverter 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 is usually sufficient to press the central "reset" key or interrupt the electrical power
supply for a few seconds.
E0 Low voltage: indicates that the power supply voltage is too low. Check the input voltage value
E1 High voltage indicates that the power supply voltage is too high. Check the input voltage value
E2-Short Circuit: This message will appear on the screen when a short circuit is detected at the inverter output;
this may occur following incorrect connections of the electric motor, damage to the electrical insulation in the
wires which connect the electric pump to the device or a fault in the pump's electric motor. When this error
appears the electrical system should be checked as soon as possible by specialised 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-Dry running: this message appears when the system is stopped following a pump intake water shortage. If
the auto-reset function has been enabled, the inverter will carry out automatic attempts to check for the
availability of water
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.
E5-module temperature: the error appears if the maximum temperature of the IGBT module of the inverter is
exceeded. Check inverter operating conditions, in particular the water temperature and the current absorbed by
the pump.
E6-Overload: this alarm is displayed when electric pump absorption exceeds the maximum set current as entered
in the Imax value: this may occur following intensive use of the electric pump, continuous restarts at close
intervals, problems with the motor windings, or following problems with the electrical connection between the
motor and the inverter. If this alarm trips frequently, arrange for the system to be checked by the installer.
E8-Serial error: this alarm may occur where there is an internal serial communication on Sirio. Contact the
technical assistance.
E9-Pressure limit: the alarm intervenes when the maximum set pressure threshold has been exceeded. If the
error appears repeatedly, check the setting of the "P limit" parameter. Also check other conditions which may
have caused an overpressure (for example, partial freezing of the fluid).
E10- External error: this alarm will be displayed if, after having set the external error function on the auxiliary
I/O board, the I/O input contact is closed.
E11-Number of maximum starts/hour: this error appears if the maximum number of admissible start-ups per
hour has been exceeded. Check for the presence of any leaks in the system. Check the pre-loading of any installed
tanks.
E12- Error 12V: an anomaly has been detected in the internal low voltage power supply circuit. Have the
manufacturer check the device.
E13- Pressure sensor error: the pressure sensor has detected an incorrect value. Have the manufacturer check
the device.