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Troubleshooting
This chapter explains how to troubleshoot a problem when inverter protective functions, fault trips,
warning signals, or a fault occurs. If the inverter does not work normally after following the suggested
troubleshooting steps, please contact the LSIS customer service center.
2.1 Trips and Warnings
When the inverter detects a fault, it stops the operation (trips) or sends out a warning signal. When a trip
or warning occurs, the keypad displays the information briefly. If the LCD keypad is used, detailed
information is shown on the LCD display. Users can read trip message when a fault occurs during
operation in nOn code of drive group. Up to 5 trips information is stored.
The fault conditions can be categorized as follows:
•Level: When the fault is corrected, the trip or warning signal disappears and the fault is not saved in the
fault history.
•Latch: When the fault is corrected and a reset input signal is provided, the trip or warning signal
disappears.
•Fatal: When the fault is corrected, the fault trip or warning signal disappears only after the user turns off
the inverter, waits until the charge indicator light goes off, and turns the inverter on again (If the inverter is
still in a fault condition after powering it on again, please contact the supplier or the LSIS customer
service center).
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