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Fault codes and software
24h on-call service phone: +358 (0)40 83 71 150
52
4
W as measurement
same as displayed
value?
F9 Undervoltage fault
F9 displayed.
Check logged
data in
fault history.
Did fault occur
several tim es when
m otor was
running?
Check if param eters
correspond to the load.
Change deceleration time,
use of brake chopper etc.
Start again with
checked/corrected settings.
YES
Did fault occur in
standby-mode?
NO
NOTE:
Triplimits
NX2 = 183V DC
NX5 = 333V DC
NX6 = 460V DC
Internal fault:
Check the voltage
measurem ent circuit and
capacitors.
External fault:
Fault was generated for a reason.
Sudden changes in mains voltage,
voltage dips in the m ains,
temporary feature of load.
Did F9 occur
again?
NO
Measure voltage
in DC-bus and
compare it to
monitored value.
YES
NO
YES
YES
NO
FIGURE 11. Fault code F9
Содержание NX
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