Fault Information And Solution - INVT Goodrive3000 GD3000-01-055G-12 Operation Manual

Goodrive3000 series medium voltage inverters

6.2 Fault information and solution

Code Fault
IGBT U phase
OUt1
protection
IGBT U phase
OUt2
protection
IGBT U phase
OUt3
protection
Accelerating
OC1
overcurrent
Decelerating
OC2
overcurrent
Constant
OC3
overcurrent
Accelerating
OV1
overvoltage
Decelerating
OV2
overvoltage
Constant
OV3
overvoltage
Bus undervoltage
UV
fault
OL1 Motor overload
Cause
The acceleration is too fast;
There is damage to the internal to
IGBT of the phase;
Interference causes faulty action;
The grounding is not good
The acceleration is too fast;
The voltage of the grid is too low;
The power of the inverter is too low
The deceleration is too fast;
The load inertia is large;
The power of the inverter is too low
The load transients or is abnormal;
The voltage of the grid is too low;
The power of the inverter is too low;
The encoding disk offline or fault
when running at high speed in close
loop vector control
The input voltage is abnormal;
Restart the rotating motor after
sudden power off
The deceleration is too fast;
The load inertia is large;
The input voltage is abnormal
The input voltage changes
abnormally;
The load inertia is large
The voltage of the grid is too low
The voltage of the power supply is too
low;
The setting rated current of the motor
is incorrect;
The motor stall or load transient is too
strong;
The encoding disk is reverse and
running at low speed for a long time in
close loop vector control;
-145-
Goodrive3000 series converter
Solution
Increase ACC time;
Ask for support;
Check if there is strong
interference to the external
equipment
Increase the ACC time;
Check the input power;
Select the inverter with a larger
power
Increase the DEC time;
Add proper energy consumption
braking components;
Select the inverter with a larger
power
Check load or reduce load
transients;
Check the input power;
Select the inverter with a larger
power;
Check the encoding disk and the
wiring
Check the input power;
Avoid restart after stop
Increase the DEC time;
Enlarge the energy braking
components;
Check the input power
Install input reactors;
Add proper energy braking
components
Check the input power
Check the power of the supply line;
Reset the rated current of the
motor;
Check the load and adjust the
torque lift;
Adjust the direction of the encoding
disk;
Select the proper motor