INVT Goodrive270 Series

Goodrive270 series VFD for fan and pump Troubleshooting
-273-
Fault
code
Fault type
Possible cause
Solution
communication
timeout fault
CAN master and slave
communication cards.
loose or dropped.
S-Err
[69] CAN slave fault
in master/slave
synchronization
Fault occurred to one of
the CAN slave VFDs.
Detect the CAN slave VFD and
analyze the corresponding fault
cause of the VFD.
FrOST
[73] Freezing fault
The temperature is lower
than the freezing
protection threshold.
Check the temperature.
BLOCK
[74] Stalling fault
The current is greater
than the stalling current.
Check for stalling.
Dr
[75] Dry pumping
fault
The current is lower than
the current limit for motor
dry pumping.
Check for dry pumping.
7.5.2 Other status
Displayed
code
Status type
Possible cause
Solution
PoFF
System power
failure
The system is powered off or
the bus voltage is too low.
Check the grid conditions.