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Fault codes and software
email: [email protected] Tel: +358 (0)201 212 575 Fax: +358 (0)204 335 091
45
4
W as m easurem ent
sam e as displayed
value?
F2 Overvoltage fault
F2 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 tim e,
use of brake chopper etc...
Start again with
checked/corrected settings.
YES
Did fault occur in
standby m ode?
NO
NOTE:
Triplim its
NX2 = 437V DC
NX5 = 911V DC
NX6 = 1200V DC
Internal fault:
Check the voltage
m easurem ent circuit.
External fault:
Fault was generated for a reason.
Sudden changes in m ains voltage,
voltage spikes in the m ains,
tem porary feature of load, break
resistor too sm all.
Did F2 occur
again?
NO
Measure voltage
in DC-bus and
com pare it to
m onitored value.
YES
NO
YES
YES
NO
FIGURE 4. Fault code F2
Содержание NX
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