Goodrive300-LIFT series inverter
Fault tracking
-102-
Code
Fault
Possible cause
Solution
Check circuit 2 of the STO
card.
STL3
STO internal circuit
exception
The internal circuits of the
STO card do not work.
Check whether the circuits
of the inverter control board
is in good condition.
CrCE
Safety code CRC
exception
Exceptions occur in the
verification of the safety
circuit code.
Check whether the control
board is in good condition.
8.5.2 Other faults
Code
Fault
Possible cause
Solution
PoFF
Power off
The system is powered off
or bus voltage is too low.
Check the grid environment.
Keypad and main
control panel
communication
failure
Improper keypad
connection.
Check the keypad installation
environment.
8.6
Common fault analysis
8.6.1 The motor does not work
The motor does not
rotate
POWER is on or not?
If there is displaying on
the keypad
If the contactor closes on
the input side
Switch on the air
contactor
Check the
voltage og RST
with multimeter
Inverter fault
Check the voltage of
the power supply
If the keypad displays the
information or not
Ensure the running
command channel
Press RUN to run
Normal running
Settle the fault
according to the
fault information
Normal running
Normal running
If the speed command
setting is right or not
Normal running
Check the voltage of
UVW
Inverter fault
If the motor configuration
is right or not
Set a right motor
configuration
If the load is too heavy
Reduce the load if
the motor is locked
caused by heavy load
Motor fault
Yes
No
No
Yes
Yes
Normal
Yes
Yes
Normal
Abnormal
Normal
Communication
Terminal
Keypad
Yes
Abnormal
No
No
No
No
No
No
Normal
Normal
Abnormal
Normal
Abnormal
Yes
Check the state of the input terminal
Reset the
parameters
If it is normal running
Communication
configuration correct?
Communication
parameter correct?
Normal running
Normal
Abnormal
Running normal after
terminal switch-on?
Abnormal
If the running is normal after setting
a right speed command
Yes