INVT GD100-5R5G-4-PV

Goodrive100-PV Series Solar Pumping VFD Fault diagnosis and solution
62
Fault
code
Fault type
Possible cause
Solutions
2. Damage to EEPROM
panel.
PIDE
PID feedback fault
1. PID feedback is offline.
2. The PID feedback source
disappears.
1. Check the PID feedback
signal
2. Check the PID feedback
source.
END
Time arrival of
factory setting
The actual running time of the
VFD is above the internal
setting running time.
Ask for the supplier and adjust
the setting running time.
OL3
Electrical overload
The VFD will report overload
pre-alarm according to the set
value.
Check the load and the overload
pre-alarm point.
ETH1
Grounding short
circuit fault 1
The grounding of the VFD
output terminal is short
circuited.
The current detection circuit is
faulty.
The actual motor power
sharply differs from the VFD
power.
Check whether the motor wiring
is proper.
Change the Hall.
Change the main control panel.
Set motor parameters correctly.
ETH2
Grounding short
circuit fault 2
dEu
Velocity deviation
fault
The load is too heavy or
stalled.
1. Check the load and ensure it
is normal. Increase the detection
time.
2. Check whether the control
parameters are normal.
STo
Maladjustment fault
1. The control parameters of
the synchronous motors not
set properly.
2. The autotuning parameter
is not correct.
3. The VFD is not connected
to the motor.
1. Check the load and ensure it
is normal.
2. Check whether the control
parameter is set properly or not.
3. Increase the maladjustment
detection time.
LL
Electronic
underload fault
The VFD will report the
underload pre-alarm
Check the load and the
underload pre-alarm point.