TECHTOP TD20 Series Product Manual page 94

TD20 Series VFD
Fault code Fault type
tE Autotuning fault
EEP EEPROM fault
PIDE PID feedback fault
bCE Braking unit fault
Velocity deviation
dEu
STo Maladjustment fault
abnormal.
1. The motor capacity does
not comply with the VFD
capability
2. The rated parameter of the
motor does not set correctly.
3. The offset between the
parameters from autotune and
the standard parameter is
huge
4. Autotune overtime
1. Error of controlling the write
and read of the parameters
2. Damage to EEPROM
1. PID feedback offline
2. PID feedback source
disappear
1. Braking circuit fault or
damage to the braking pipes
2. The external braking
resistor is not sufficient
The load is too heavy or
fault stalled.
1. The control parameters of
the synchronous motors not
set properly.
2. The autoturn parameter is
Possible cause
-92-
Fault Tracking
Solutions
1. Change the VFD mode
2. Set the rated parameter
according to the motor
nameplate
3. Empty the motor load.
4. Check the motor connection
and set the parameter.
5. Check if the upper limit
frequency is above 2/3 of the
rated frequency.
1. Press STOP/RST to reset
2. Change the main control
panel
1. Check the PID feedback
signal
2. Check the PID feedback
source
1. Check the braking unit and ,
change new braking pipe
2. Increase the braking
resistor
1. Check the load and ensure
it is normal. Increase the
detection time.
2. Check whether the control
parameters are normal.
1. Check the load and ensure
it is normal.
2. Check whether the control
parameter is set properly or