Lenze Range 7800 User Manual
Page 19
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ET4 6/ta
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page:
18
Function code 09
At
voltage-treguency (U/t)
edge points
ot
50 Hz or
60 Hz,
16
different
U
.
characteristics
can be entered.
Using character-
istlcs
0
and lni~i~e motor
is
underexcited,
whilst
characteristics
2
through
to
15 allcw tor
a voltage
increase
in the
lower
speed range
with linear voltage-trequency increase.
Umains
lt
the U/t edge point
is hlgher than 60 Hz, an underexcitement
of
the motor
is no langer possible.
Then,
all
characteristics
(0 to
15)
have a linear voltage—trequency increase.
00:
minimum Umin increase
06:
normal Umin increase
15: maximum Umin lncrease
50
or
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