Fault Diagnosis And Solution - INVT Goodrive100-PV Series Operation Manual

Goodrive100-PV Series Solar Pumping VFD

7 Fault diagnosis and solution

Do as follows after the VFD encounters a fault:
1. Check to ensure there is nothing wrong with the keypad. If not, please contact with the local
office.
2. If there is nothing wrong, please check P07 and ensure the corresponding recorded fault
parameters to confirm the real state when the current fault occurs by all parameters.
3. See the following table for detailed solution and check the corresponding abnormal state.
4. Eliminate the fault and ask for relative help.
5. Check to eliminate the fault and carry out fault reset to run the VFD.
Fault
Fault type
code
Inverter unit U
OUt1
phase protection
Inverter unit V
OUt2
phase protection
Inverter unit W
OUt3
phase protection
OV1 ACC overvoltage
OV2 DEC overvoltage
Constant-speed
OV3
overvoltage
OC1 ACC overcurrent
Possible cause
1. The acceleration is too fast.
2. This phase
damaged internally.
3. Interference
misoperation.
4. The drive wire is connected
improperly.
5. The load transients or is
abnormal.
6. The grounding is short
circuited.
1. The input
abnormal.
2. There is large energy
feedback.
3. No braking components.
4. Braking energy is not open.
1. The acceleration
deceleration is too fast.
59
Fault diagnosis and solution
IGBT is
1. Increase the acceleration
time.
causes
2. Change the power unit.
3. Check the drive wire.
4. Check whether the peripheral
equipment
interference sources.
1. Check the input power.
2. Check if the DEC time of the
load is too short or the VFD
voltage is
starts during the rotation of the
motor or it needs to increase the
energy
components.
3.
components.
4. Check the setting of relative
function codes.
or 1. Increase the ACC time.
2. Check the input power.
Solutions
has
consumption
Install the
strong
braking