Lenze Range 7800 User Manual

Page 18

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background image

ET4

6/fa

checked:

19.04.89

MB

33.0831 GB

page:

17

Function code 08

When using this tunction code a built—in electronic motor protec—

tive tunction can be

adapted to

smaller motors,

which are not

dimensioned

tor

the inverter

size.

The protective

ttinction is

only valid

tor tour-pole motors

and cannot be used tor group

drives.

The data

code to be set can be tound

in the tollowing

table.

Date cc~de

00

01

1

02

03

0-4

05

06

07

08

09

101

11

1

12

13

14

151

not

100

95

90

85

80

75

70

65

60

55150145

40

35

30

c

0>

E

0

0

1.~

50

40

30

20

10

The protective

tunction

considers

the reduced motor cooling

at

lower treguenoles

(speeds).

The characterlstic

shows the operation

at nominal trequency.

Lower trequencies result in shorter

switch-ott

times.

When the protective

tunction

is

released,

0L2

appears as the

tault condition.

30

100

150

{O/)

inveder current

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