EC590
EC590
-
147
-
-
148
-
Err03
Overcurrent
during
deceleration
1: The output circuit is grounded
or short circuited.
2: Motor auto-tuning is not
performed.
3: The deceleration time is too
short.
4: The input voltage is too low.
5: A sudden
load is added during
deceleration.
6: The braking unit and braking
resistor are not installed.
7: Subject to external inter-
ference.
1: Eliminate external faults.
2: Perform the motor autotuning.
3: Increase the deceleration time.
4: Adjust the voltage to the normal range.
5: Remove the added load.
6: Install the braking unit and braking
resistor.
7: According to the historical fault
records, if the current value at the time
of fault is far from reaching the over-
current point value, it is necessary to
find the interference suorce.
Err04
Overcurrent
at constant
speed
1: The output circuit is grounded
or short circuited.
2: Motor auto-tuning is not
performed.
3: The input voltage is too low.
4: A sudden load is added during
operation.
5: The AC drive model is of too
small power class.
6: Subject to external inter-
ference.
1: Eliminate external faults.
2: Perform the motor autotuning.
3: Adjust the voltage to the normal range.
4: Remove the added load.
5: Select an AC drive of higher power
class.
6: According to the historical fault
records, if the current value at the time
of fault is far from reaching the over-
current point value, it is necessary to
find the interference suorce.
Err05
Overvoltage
during
acceleration
1: The input voltage is too high.
2: An external force drives the
motor during acceleration.
3: The acceleration time is too
short.
4: The braking unit and braking
resistor are not installed.
5: Subject to external inter-
ference.
1: Adjust the voltage to normal range.
2: Remove the external force or install a
braking resistor.
3: Increase the acceleration time.
4: Install the braking unit and braking
resistor.
5: According to the historical fault
records, if the current value at the time
of fault is far from reaching the over-
current point value, it is necessary to
find the interference suorce.
Display
Err02
Fault
name
Overcurrent
during
acceleration
Possible causes
1: The output circuit is grounded
or short circuited.
2: Motor auto-tuning is not
performed.
3: The acceleration time is too
short.
4: Manual torque boost or V/F
curve is not appropriate.
5: The input voltage is too low.
6: The startup operation is
performed on the rotating motor.
7: A sudden load is added during
acceleration.
8: The AC drive model is of too
small power class.
9: Subject to external inter-
ference.
Solutions
1: Eliminate external faults.
2: Perform the motor auto
-
tuning.
3: Increase the acceleration time.
4: Adjust the manual torque boost or V/F
curve.
5: Adjust the voltage to the normal range.
6: Select rotational speed tracking
restart or start the motor after it stops.
7: Remove the added load.
8: Select an AC drive of higher power
class.
9: According to the historical fault
records, if the current value at the time
of fault is far from reaching the over-
current point value, it is necessary to
find the interference suorce.
7. Faults and Solutions
7.1List of actions to protect
The AC drive itself has the functions of over-voltage, low voltage and over-current
alarms and protection. Once a failure occurs, the protective actions will work, the AC
drive will stop the output, the abnormal contact will act, and the free operation of motor
will stop. Please refer to the abnormality causes and solutions according to the shown
abnormality information of AC drive. The abnormality records will be kept in the interior
storage unit of AC drive (which can record the latest 4 faults message), and can be read on
the digital operation panel or by communication via parameter reading.
Err06
Err07
Err08
Overvoltage
during
deceleration
Overvoltage
at constant
speed
Control
power supply
fault
1: The input voltage is too high.
2: An external force drives the
motor during deceleration.
3: The deceleration time is too
short.
4: The braking unit and braking
resistor are not installed.
5: Subject to external inter-
ference.
1: The input voltage is too high.
2: An external force drives the
motor during running.
3: Subject to external inter-
ference.
1: The input voltage is not
within the allowable range.
1: Adjust the voltage to normal range.
2: Remove the external force or install a
braking resistor.
3: Increase the deceleration time.
4: Install the braking unit and braking
resistor.
5: According to the historical fault
records, if the current value at the time
of fault is far from reaching the over-
current point value, it is necessary to
find the interference suorce.
1: Adjust the voltage to the normal range.
2: Remove the external force or install
the braking resistor.
3: According to the historical fault
records, if the current value at the time
of fault is far from reaching the over-
current point value, it is necessary to
find the interference suorce.
1: Adjust the input voltage to the
allowable range.
Err09
Undervoltage
1: Instantaneous power failure
occurs on the input power supply.
2: The AC drive's input voltage
is not within the allowable range.
3: The DC-Bus voltage is abnormal.
4: The rectifier bridge and
buffer resistor are faulty.
5: The drive board is faulty.
6: The main control board is
faulty.
1: Reset the fault.
2: Adjust the voltage to the normal range.
3: Contact technical support.
4: Contact technical support.
5: Contact technical support.
6: Contact technical support.
Faults and solutions
Faults and solutions
