SCOV SV600 Series, Руководство пользователя, Страница: 183 / 198

SV600 Series User Manual 8Maintenance and Fault Diagnosis
177
Fault Name Display Possible causes Countermeasures
Speed deviation
too large
Err42
1. Encoder parameter set incorrectly.
2. Not perform motor self-learning.
3. P9-69 and P9-70 set incorrectly.
1. Correctly set encoder parameters.
2. Perform motor self-learning.
3. Correctly set P9-69 and P9-70.
Motor overspeed
Err43
1. Encoder parameter set incorrectly.
2. Not perform motor self-learning.
3. P9-67 and P9-68 set incorrectly.
1. Correctly set encoder parameters.
2. Perform motor self-learning.
3. Correctly set P9-67 and P9-68.
Motor overheat
Err45
1. The wiring of temperature sensor
bad.
2. Motor temperature too high.
1. Check the wiring of temperature sensor
and eliminate the fault.
2. Reduce the carrier frequency or take other
measures to decrase the motor temperature.
Initial Position
Error
Err51
The difference between the motor
parameters and the actual conditions
too large.
Check the motor parameters set correctly or
not, expecially confirm the rate current set
too small or not.
8.4 Common faults and solutions
The following fault you may come accross during the operation of the inverter. Please refer to
the following table for simple fault analysis.
Table 8-2 Common Faults and Treatment Methods
No. Fault phenomenon Possible causes Solutions
1
No display when
power-on
1. No power supply or the supply
voltage is too low.
2. The switch power on the drive
board abnormal.
3. The rectifier bridge broken.
4. The buffer resistor of inverter
broken.
5. The control board or keyboard
abnormal.
6. The cable between the control
board, power board and keyboard
abnormal.
1. Check the input power supply.
2. Detect DC bus voltage.
3. Wiring the cable between the main
control board, power board and
keyboard well.
4. Seek technical supports from the
agent or the manufacturer.
2
Display "Err23"
when power-on
1. Motor or motor cable short circuit
to ground.
2. Inverter broken.
1. Measuring the insulation of the motor
and the motor cable with a megger.
2. Seek technical supports from the
agent or the manufacturer.
3
Err14 (IGBT
Overheat) occurs
frequently
1. The carrier frequency too high.
2. Cooling fan broken or air duct
blocked.
3.
Inverter internal internal
components broken (thermocouple
or others)
1 .Reduce the carrier frequency (P0-15).
2. Replace the fan and clean the air
ducts.
3. Seek technical supports from the
agent or the manufacturer.
4
The motor does
not rotate after the
inverter runs. 1. Motor and motor cables abnormal.
2.
Inverter parameters set
improperly, expecially motor
1 .Ensure the motor and motor cable
normal.
2. Correctly set the motor parameters