Baumuller b maXX BM5800 - Page 709

Description of the Software Modules and Parameters
Parameter manual b maXX BM5800
Document No.: 5.16029.03
709
of 814
3
[%]
[%]
[s]
– for power unit temperature > 45°C
[%]
– otherwise
Ixt
Offset
= 0 %
– Activation time
Example:
I
nenn
= 10 A
eff
I
max
= 15 A
eff
t
u
= 1 [s]
I
grenz
= 12 A
eff

ist
= 35°C
[%]
[%]
[s]
[s]
LT Thermal time constant (
LT
) [s]
LT Activation time (t
aus
) [s] Time to limit to I
nenn
LT Ixt Offset (Ixt Offset) [%]
u
max
I
max
I
nenn
-----------
100=
u
I
ist
I
nenn
-----------
100=

LT
t
u
u
max
100–
u
max
--------------------------


ln
-------------------------------------–=
IxtOffset

ist
45
o
C–
85
o
C 45
o
C–
-------------------------------
100=
t
aus

LT
u
u 100– IxtOffset+
-----------------------------------------------


ln=
u
max
15
10
------
100 150==
u
12
10
------
100 120==

LT
1
150 100–
150
------------------------


ln
-----------------------------------–091==
t
aus
091
120
120 100–
------------------------


ln 163==