Warning Management - EBARA E-SPD+ Manual De Instrucciones Y Mantenimento

16 - WARNING MANAGEMENT

One of the main principles of the Inverter is to try to avoid the failure of the hydraulic supply. To do this, the
Inverter has systems that, in the event any reading for the pressure/consumption of the motor is outside of the
established limits, it may partially lose its ability to try to avoid the Inverter locking and, therefore, avoid the
failure of the hydraulic supply.
A clear example is an excessive consumption of the electric motor. In this specific scenario, the Inverter will limit
the rotational speed of the motor to avoid its deterioration, maintaining the consumption of the motor equal to
the nominal consumption, thus the hydraulic installation will continue to receive flow from the pump, not at the
working pressure established, but at a somewhat lower pressure.
A table specifying the current state of the system operation, according to visual warnings that are shown using
both the LEDS and the main screen can be found below:
WARNING
The POWER LED blinks
The RUN LED blinks
The ALARM LED blinks
The current frequency data blinks
The stop frequency data blinks
The current consumption data blinks
Next to the current pressure data, there is
an asterisk that blinks
REASON
The pump to which the Inverter is connected is not
operative for automatic running.
The Inverter is in the process of stopping the pump.
The start-up wizard is running.
The pump is in a state of alarm (indicated on the
display).
The Inverter is limiting the rotational frequency of the
motor due to a high temperature in the electronics, in
addition to excessive consumption of the electric motor.
The stop frequency calculated exceeds the maximum
frequency permitted for pump operation.
The Inverter is limiting the rotational frequency of the
motor due to excessive consumption of the motor.
The Inverter with this warning does not have any
pressure transducer connected.If there is a transducer
connected, it is not connected with the correct polarity.
The transducer's reading has a difference of 0.5 bar
from the other transducers connected on the network
of Inverters.
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EXPLANATION / SOLUTION
Check that there is no manual shutdown (AUTO/STOP
button on the keypad), a remote stop (auxiliary input
active remote stop) or a general stop of the network of
Inverters (occurs when any general critical parameter is
being modified).
The LED will stop blinking once the initial configuration
wizard has finished.
Consult the section on Alarms in this manual to resolve
the incident.
Consult the section on Alarms in this manual to resolve
the incident.Check the Inverter is properly ventilated.
We recommend running the stop frequency setup wizard
again (find the stop frequency wizard on 5. ADVANCED
PARAMETERS).
If this warning persists after running the wizard again,
you must reduce the working pressure, as the pump that
is connected will not be able to reach it.
Check that the motor current is that indicated on the
specifications plate.
Disconnect the transducer from the electrical terminal
block and invert the polarity of the connecting cable.
We recommend changing the transducer because it is not
reading correctly.
EN