INVT GD310-011P-4-UL, Operation Manual

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GD310-UL series VFD Fault tracking
-172-
8 Fault tracking
8.1 What this chapter contains
This chapter tells how to reset faults and view fault history. It also lists all alarm and fault messages
including the possible cause and corrective actions.

Only qualified electricians are allowed to maintain the VFD. Read the
safety instructions in chapter Safety precautions before working on the
VFD.
8.2 Alarm and fault indications
Fault is indicated by LEDs. See Operation Procedure . When TRIP light is on, an alarm or fault
message on the panel display indicates abnormal VFD state. Using the information given in this
chapter, most alarm and fault cause can be identified and corrected. If not, contact INVT office.
8.3 How to reset
The VFD can be reset by pressing the keypad key STOP/RST, through digital input, or by switching
the power light. When the fault has been removed, the motor can be restarted.
8.4 Fault history
Function codes P07.27
–P07.32 store 6 recent faults. Function codes P07.33–P07.40, P07.41–P7.48,
P07.49
–P07.56 show drive operation data at the time the latest 3 faults occurred.
8.5 Fault instruction and solution
Do as the following after the VFD fault:
1. Check to ensure there is nothing wrong with the keypad. If not, please contact the local INVT 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 related help.
5. Check to eliminate the fault and carry out fault reset to run the VFD.
Note: The number enclosed in square brackets such as [1], [2], [3] in the Fault type column in the
following table indicate the VFD fault type codes read through communication.
Fault
code
Fault type Cause Solution
OUt1
[1] IGBT U
phase
protection

The acceleration is too fast

There is damage to the
internal to IGBT of the
phase

The connection of the

Increase acc. time

Change the power unit

Check the driving wires

Check if there is strong
interference to the external
OUt2
[2] IGBT V
phase
protection