Vacon NX - Page 59

Fault codes and software
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FIGURE 19. Fault code F17
Software has trigged this fault.
Check / correct underload
protection parameters.
F17 Motor underload
Measure motor current and compare
value on monitoring page.
Is measured current
= monitored
current?
NO
F17 displayed.
Check logged
data in
fault history.
Can
parameters be
corrected?
External fault trigged
this protection.
NO
Adjust
parameters and
try again.
YES
Internal fault: Check the
current measurement circuit
Did F17
occur
again?
YES
YES
Wrong
parameter setting.
NO