Alarm
Description
Possible solutions
A03 OVER TEMP.
INV.
The temperature reached by the
device is higher than the maximum
allowed value.
Recovery mode:
• Automatic reset
• Check that the ambient temperature is within the permissible
limits.
• Make sure the device is protected from direct exposure to
sunlight or heat sources.
• Check the correct functioning of both external and internal
cooling fans (if present).
• Check that the dissipation channels are clean.
• Check that the device is cooled as prescribed in the dedica-
ted chapter.
• Reduce the parameter PWMas much as possible.
NOTE
To ensure continuity of operation, the inver-
ter automatically reduces the maximum fre-
quency (i.e. power) when the internal tem-
perature reaches a certain threshold. If such
reduction in frequency is not sufficient to
keep the temperature above the maximum
permitted value, the inverter will stop the
motor and produce the alarm A03 OVER
TEMP. INV..
A04 DRY RUN CO-
SPHI
The warning W26 NO WATER is
triggered 5 consecutive times fol-
lowing automatic reset attempts.
Recovery mode:
• Alarm reset by STOP key.
• Removing the power supply
WARNING
When the warning W26 NO WATER is trig-
gered, the device will automatically restart
the load after a time equal to the value set
in the parameter Restarts delay multiplied
by the number of attempts made. At the end
of the fifth attempt, the device will definitive-
ly stop the load producing the alarm A04
DRY RUN COSPHI. Resetting the alarm
must be done manually.
A05 UNDER VOLT-
AGE
• Supply voltage below the mini-
mum permitted value.
• Insufficient input power to power
the device.
Recovery mode:
• Automatic reset if parameter Au-
torestart = ON
• Check the value of the supply voltage both at no-load and at
load.
• Check that the source has sufficient power to supply the
load.
A06 OVER VOLT-
AGE
The supply voltage or the voltage
inside the device is beyond the
maximum allowed value.
Recovery mode:
• Automatic reset if parameter Au-
torestart = ON
• Check the value of the supply voltage both at no-load and at
load.
• Check for regeneration from the load.
• Increase parameter Ramp down time
• Increase parameter Ramp f min mot.
• In the case of a permanent magnet motor, check that the
load is not placed in passive motion.
A07 MAX. VALUE
ALARM
The value read by the analog input
is higher than the value set for the
parameter Max alarm value.
Recovery mode:
• Automatic reset
• Check the value set for the parameter.
• Check the hydraulic causes that lead to the alarm condition.
• Check that the sensor is working properly.
PSDrive
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