TECHTOP TD20 Series - Page 96

TD20 Series VFD Fault Tracking
-94-
Fault code
Fault type
Possible cause
Solutions
ETH2
Grounding shortcut
fault 2
2. There is fault in the current
detection circuit
3. There is a great difference
between the actual
motorpower setting and the
VFD power
2. Change the hoare
3. Change the main control
panel
4. Reset the correctmotor
parameter
LL
Electronic underload
fault
The VFD will report the
underload pre-alarm
according to the set value.
Check the load and the
underload pre-alarm point.
6.2.4 Other states
Fault code
Fault type
Possible cause
Solutions
PoFF
System power off
System power off or low DC
voltage
Check the grid