Baumuller b maXX BM5800 - Torque Current Limit Lsqlim at the Standard Load Mode of the Synchronous Motor Bit 3 = 0); A) Dependent of the Field Current (an External Total Current Limit Is Not Assumed).  B) Dependent of External Total Current Limit (Field Weakening Is Not Assumed)

Controllers
Parameter manual b maXX BM5800
Document No.: 5.16029.03 Baumüller Nürnberg GmbH
458
of 814
3.7
At the current mode the parameter Z19.8– is set by the maximum total current of the drive
Z19.5– and is independent of external total current limit or field weakening. The value in
ampere of these limits will not change at field weakening and external total current limit.
The operation of the standardization and the limit modes are described from ZFig. 116–
on page 459 to ZFig. 120– on page 463, whereat lsqLim stands for one of the torque cur-
rent limits Z138.2–, Z138.3–, Z138.14– or Z138.15–.
Figure 116: Torque current limit "lsqLim" at the "Standard load mode" of the synchronous motor (138.1
bit
3 = 0).
a) Dependent of the field current (an external total current limit is not assumed). 
b) Dependent of external total current limit (field weakening is not assumed)
5000_0351_rev01_int
t
LT-Imax
19.6
n [min ]
N
N
-1
t
[A]
n [min ]
N
N
-1
0
n [min ]
N
N
-1
t
100% 100%
IsqLim IsqLim
IsqLim
IsqLim
107.7
[A]
isq
[A]
isq
[A]
LT-Imax
19.6
LT-Imax
19.6
a) b)
isq 100
Isq
loading
[%]
Isq
loading
[%]
isqMax
19.8
isqMax 19.8
LT-Imax-act
2
isd-set
2

=
isqMax 19.8
isd-set
i drive
LT-Imax-act 19.5
external
drive current limit