Frequency Inverter ST600 Series High-Performance Multifunction VFD Troubleshooting
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7 Troubleshooting
7.1 What this chapter contains
The chapter tells users 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.
7.2 Indications of alarms and faults
The fault is indicated by indicators (refer to the "Keypad operation process"). When TRIP indicator is
on, the alarm or error 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
users cannot figure out the alarm or fault causes, contact local Sourcetronic office.
7.3 Fault reset
Users can reset the VFD via STOP/RST key on the keypad, digital inputs, or by cutting off the VFD
power. After faults are removed, the motor can be start again.
7.4 Fault history
P07.27–P07.32 record the six latest fault types; P07.33–P07.40, P07.41–P07.48, and P07.49–P07.56
record the running data of the VFD when the latest three faults occurred.
7.5 VFD faults and solutions
When fault occurred, process the fault as shown below.
1. When VFD fault occurred, confirm whether keypad display is improper? If yes, contact Sourcetronic;
2. If keypad works properly, check the function codes in P07 group to confirm the corresponding fault
record parameters, and determine the real state when current fault occurred through parameters;
3. Check the table below to see whether corresponding exception states exist based on the
corresponding corrective measures;
4. Rule out the faults or ask for help from professionals;
5. After confirming faults are removed, reset the fault and start running.
7.5.1 Details of faults and solutions
Note: The numbers enclosed in square brackets such as [1], [2] and [3] in the Fault type column in
the following table indicate the VFD fault type codes read through communication.
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