11 Troubleshooting
This chapter explains how to troubleshoot problems when the inverter protective functions are
activated (faults and warnings). If the inverter does not work normally after following the suggested
troubleshooting steps, contact BENSHAW Technical Support..
11.1 Trip and Warning
When the inverter detects a fault, it stops the operating (trips) and displays the fault message in the
TRP (Trip) Group. Detailed information about the fault can be viewed on the LCD display at
parameters TRP-01 ~ TRP-10. Warnings are also displayed at the TRP Group with the same details
as the faults. When more than 2 trips occur at roughly the same time, the keypad displays the
higher priority fault code. Use the [Up], [Down], [Left] or [Right] arrow buttons on the keypad to view
the fault information. The fault conditions are categorized as follows:
Level: When the fault is corrected, the fault or warning signal is reset and the fault is not saved in the
fault history.
Latch: When the fault is corrected and a reset is performed (keypad or external), the fault or
warning signal clears. The fault is saved in the Fault History (TRP Group).
Fatal: When the fault is corrected, the fault or warning signal is reset only after the inverter power is
cycled (Off then On), When powered off, wait until the charge indicator light goes off then turn the
inverter on again. If the inverter is still in a faulted condition after powering it on again, please
contact the supplier or the BENSHAW customer service center.
11.1.1 Faults
Protection Functions for Output Current and Input Voltage
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