IR610 high performance vector control frequency inverter user manual Chapter6 Fault diagnosis and solutions
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Chapter 6 Fault Diagnosis and Solution
6.1 Failure and diagnosis
The IR610 inverter has perfect protection. If a fault occurs, the inverter will act according to the fault
attribute. For more serious faults, the inverter will directly block the output; for general faults, it can be
configured to stop or continue to operate according to the scheduled stop mode. After the inverter fails,
the fault relay contacts act and the fault code is displayed on the display panel. Before seeking service,
users can perform self-checking according to the tips in this section, analyze the cause of the fault, and
find a solution.
Fault Name
Fault
code
Display
Possible Causes
Solutions
Inverter unit
Protection
1
Er. SC
1: motor insulation aging
2: the cable is damaged and contact,
short circuit
3:The distance between motor and
inverter are too long.
4: output transistor breakdown
5: the internal wiring of the inverter is
loose, or the hardware is bad.
6:brake transistor short circuit
1. Confirm the insulation
resistance of the motor. If it is
turned on, replace the motor.
2. Check the power cable of the
motor
3. Install reactor or output filter
4, seeking technical support
5, seeking technical support
6. Check if the braking resistor
is damaged and the wiring is
correct.
Over current
during
acceleration
2
Er.OC1
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 voltage is too low.
6: The startup operation is performed
on the rotating motor.
7: A sudden load is added during
acceleration.
8: The frequency inverter model is of
too small power class.
1: Eliminate external faults.
2: Perform the motor auto-
Tuning in cold state
3: Increase the acceleration
time.
4: Adjust the manual torque
boost or V/F curve.
5: Adjust the voltage to normal
range.
6: Select rotational speed
tracking restart or start the
motor after it stops.
7: Remove the added load.
8: Select a frequency inverter
Ofhigher power class.
Over current
during
deceleration
3
Er.OC2
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 voltage is too low.
5: A sudden load is added during
deceleration.
6: The braking unit and braking
resistor are not installed
1: Eliminate external faults.
2: Perform the motor
auto-tuning.
3: Increase the
decelerationtime.
4: Adjust the voltage to normal
range.
5: Remove the added load.
6: Install the braking unit
Andbraking resistor.
Summary of Contents for IR610 Series
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