Inovance MD500-PLUS Series - Page 716

Fault Codes
‑715‑
Fault Name Display Possible Cause Action
User‑defined fault 2 E28.00 The user‑defined fault 2 signal is
input via the DI.
Perform a reset.
The user‑defined fault 2 signal is
input through the virtual I/O
function.
Perform a reset.
Accumulative
power‑on time
reach
E29.00 The accumulative power‑on time
has reached the reference value.
Clear the record through parameter initialization.
Load lost E30.00 Running current of the AC drive
less than the value of F9‑64
Check for load disconnection and mismatching
between the values of F9‑64 and F9‑65 and actual
working conditions.
PID feedback loss
during operation
E31.00 PID feedback less than the value
of FA‑26
Check the PID feedback signals or set FA‑26 to a
proper value.
Pulse‑by‑pulse
current limit fault
E40.00 Excessively heavy load or stalled
motor
Reduce the load and check the motor and
mechanical conditions.
Inadequate power rating of the
AC drive
Use an AC drive with a higher power rating.
Excessive speed
deviation
E42.00 Incorrect setting of encoder
parameters
Set encoder parameters properly.
Auto‑tuning is not performed on
parameters.
Perform motor parameter auto‑tuning.
Inappropriate setting of F9‑69
and F9‑70
Set the parameters correctly based on actual
conditions.
Motor overspeed E43.00 Incorrect setting of encoder
parameters
Set encoder parameters properly.
Auto‑tuning is not performed on
parameters.
Perform motor parameter auto‑tuning.
Inappropriate setting of F9‑67
and F9‑68
Set the parameters correctly based on actual
conditions.
Motor
overtemperature
E45.00 Temperature sensor loosely
connected
Check the wiring of the temperature sensor.
High motor temperature Increase the carrier frequency or take other heat
dissipation measures to cool the motor.
Excessively low value of F9‑57
(motor overtemperature
protection threshold)
Adjust the threshold to a level between 90°C and
100°C.
AC drive
overtemperature
E60.00 High internal temperature of the
AC drive
Replace the fan in the AC drive.
Contact Inovance.
Braking transistor
overload
E61.00 Excessively low resistance of the
braking resistor
Use a braking resistor with higher resistance.
Braking transistor
short circuit
E62.00 Braking transistor short circuit Ensure proper functioning of the braking
transistor.
Check whether an external braking resistor is
installed.
Low liquid level
alarm
E63.00 Low liquid level of the water tank Add coolant.