IMO SD1 Series - Page 116

SD1 Series Inverters Fault Tracking
-111-
Fault
code
Fault type Possible cause Solutions
PCE
Keypad
communication
error
 The keypad is not in good
connection or offline.
 The keypad cable is too
long and there is strong
interference.
 Part of the communication
circuits of the keypad or
main board are faulty.
 Check the keypad cable
and ensure it is normal.
 Check the environment
and eliminate the
interference source.
 Change hardware and ask
for maintenance service.
UPE
Parameter
upload error

The keypad is not in good
connection or offline.
 The keypad cable is too
long and there is strong
interference.
 Part of the communication
circuits of the keypad or
main board have fault.

Check the environment
and eliminate the
interference source.
 Replace the hardware and
ask for maintenance
service.
 Change hardware and ask
for maintenance service.
DNE
Parameter
download error
 The keypad is not in good
connection or offline.
 The keypad cable is too
long and there is strong
interference.
 Data storage error in
keypad.

Check the environment
and eliminate the
interference source.
 Replace the hardware and
ask for maintenance
service.
 Backup data in the keypad
again.
ETH1
Grounding
shortcut fault 1
 The output of the inverter is
short circuited to the
ground.
 There is fault in the current
detection circuit.
 There is a great difference
between the actual motor
power setting and the
inverter power.

Check if the connection of
the motor is normal or not.
 Replace the hall.
 Replace the main control
panel.
 Reset motor parameters
and ensure those
parameters are correct.
 Check whether motor
power parameters in P2
group are consistent with
the motor power used.
ETH2
Grounding
shortcut fault 2