INVT IPE300 Series, Opeartion Manual

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IPE300 series engineering VFD Troubleshooting
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7 Troubleshooting
7.1 What this chapter contains
The chapter tells you how to reset faults and check faults history. A complete list of alarms and fault
information as well as possible causes and corrective measures are presented in this chapter.
 Only trained and qualified professionals are allowed to carry out the operations
mentioned in this chapter. Please carry out operations according to instructions
presented in "Safety precautions".
7.2 Indications of alarms and faults
The fault is indicated by indicators. When the TRIP indicator is on, the alarm or fault code displayed in
the keypad indicates the VFD is in exception state. This chapter covers most of the alarms and faults,
and their possible causes and corrective measures. If you cannot figure out the alarm or fault causes,
contact local INVT office.
7.3 Fault reset
The VFD can be reset by pressing the keypad key STOP/RST, digital inputs, or by cutting off the VFD
power. After faults are removed, the motor can be started again.
7.4 Fault history
The function codes from P07.27 to P07.32 record the types of the last six faults. The function codes
P07.33
–
P07.40 , P07.41
–
P07.48 , P07.49
–
P07.56 record the running data of the VFD at the last three
faults.
7.5 Faults and solutions
Do as follows if the VFD encounters a fault:
1. Check whether there is any exception on the keypad. If yes, contact the local INVT office.
2. If no, check function group P07 to view the fault record parameters and understand the actual
condition.
3. See the following table for a detailed solution and check for exceptions.
4. Rectify the fault or ask for help.
5. Ensure the fault has been rectified, perform fault reset, and run the VFD again.
7.5.1 Faults and solutions
Fault
code
Fault
No.
Fault type Possible cause Solution
OUt1 1
Inverter unit
U-phase protection
ACC is too fast;
IGBT module is damaged;
Misacts caused by
Increase ACC time;
Replace the power unit;
Check drive wires;
OUt2 2
Inverter unit
V-phase protection