IMO SD1 Series - Chapter 7 Communication Protocol; 7.1 Modbus Protocol Introduction

SD1 Series Inverters Fault Tracking
-110-
Fault
code
Fault type Possible cause Solutions
ItE
Current
detection fault
 The connection of the
control board is not good.
 Assistant power is bad.
 Board components failure.
 The modifying circuit is
abnormal.
 Check the connector and
plug wire again.
 Change the board.
 Change the main control
panel.
tE Autotuning fault
 The motor capacity does
not match with inverter
capacity.
 The rated parameter of the
motor is set improperly.
 The deviation between the
parameters from autotune
and the standard
parameter is huge.
 Autotune overtime.

Change the inverter model;
Set the rated parameter
according to the motor
nameplate.
 Empty the motor load;
Check the motor
connection and set the
parameter.
 Check if the upper limit
frequency is above 2/3 of
the rated frequency.
EEP EEPROM fault
 Error occurred to R/W of
the control parameter.
 EEPROM is damaged.
 Press STOP/RST to reset.
 Change the main control
panel.
PIDE
PID feedback
fault
 PID feedback offline.
 PID feedback source
missing.

Check the PID feedback
signal wire.
 Check the PID feedback
source.
bCE
Braking unit
fault
 Braking circuit fault or
damage to the brake pipes.
 The external braking
resistor is not sufficient.
 Check the braking unit and
change to new brake pipe;
 Increase the braking
resistor.
END
Time reach of
factory setting

The actual running time of
the inverter is larger than
the internal setting running
time.
 Ask for the supplier and
adjust the setting running
time.