22.
PARAMETERS Pr.91
-
Pr.133
Resonance can occur at certain
speeds
in
some
appliitions when a motor is driven by an in-
verter. To avoid this resonance upto three jump positions can
be
set,
by defining the upper and
lower frequency limits in Pr.91 to Pr.96.
The
lA,
2A
or
3A
setting value
becomes
the jumping point, the inverter will run at that frequency
while in the frequency jump range.
?*
w
&mp
(M
m.almxe
E@*
E.4
3A
Notes)
1:
Frequency jump will not function
ii
9999 (defalut value) is set.
2:
During acceleration and deceleration, the frequency in the sening range will be passed
through.
JPr.(2BI
FJ
pq
(Pr.1311
IR.1331
o
~.tn
to
Pr.4.
-90-
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