INVT Goodrive350-19 Series - Page 407

Goodrive350-19 series VFD Troubleshooting
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Fault
code
Fault type
Possible cause
Corrective measure
fault
PT1000 detection circuit is
abnormal.
PT1000 overtemperature
protection setting is
improper.
Check PT1000 circuit.
Check whether PT1000
overtemperature protection
point is too small.
SFE
Set frequency fault
The set frequency is too
small.
Check whether the frequency
reference is smaller than the
set frequency protection point.
PtcE
PTC
overtemperature
fault
The current environment
temperature is too high.
Check the current environment
temperature.
8.5.2 VFD alarms and corrective measures
Alarm
code
Alarm type
Possible cause
Corrective measure
A-SPI
Input phase loss
alarm
During stop, a loss of either
input phase R, S, or T
occurs or fluctuation is
great.
Check the input power source
and wiring.
A-LU
Upward position
limit alarm
The input terminal has set
the upward limited position
reaching function, and
there is a signal reference
to the terminal.
Check whether the allowed
highest position point has
been reached.
Check the input terminal
signal.
A-Ld
Downward position
limit alarm
The input terminal has set
the downward limited
position reaching function,
and there is a signal
reference to the terminal.
Check whether the allowed
lowest position point has
been reached.
Check the input terminal
signal.
A-LvP
Low voltage alarm
The bus voltage is too low.
Check whether the voltage
protection point is too high.
Check whether the grid
voltage or rectifier module is
abnormal.
A-OL
Overload protection
alarm
The load is too heavy.
The overload protection
parameter is set is
improperly.
Check whether the load is too
heavy.
Check whether the overload
protection point is too small.