Configuration
Parameter manual
b maXX
BM3000
Document no.: 5.12001.07
Baumüller Nürnberg GmbH
120
4.4
19.7
Max. field current amplitude
Display of the maximum amplitude of the field current. The maximum field current for syn-
chronous motors is set via the absolute value of the field current preset value (
).
The maximum field current for asynchronous motors is set via the limitation of flux con-
troller (
The maximum field current amplitude is limited by the maximum total current of the drive
(
):
Max. field current amplitude [
>
19.7
<
]
0,95 * Max. drive current [
19.8
Max. torque current
Display of the reference variable of the maximum torque current in A.
The maximum torque current I
sq max
(
>
19.8
<
) results from the max. drive current I
max aux
and the reduction of the field current I
sd aux
.
The max. drive current I
max aux
and the field current I
sd aux
are dependent of the motor
type and of the torque current standardized modes (parameter "Mode of Iq limit"
Bit 1 and Bit 3). The following modes are available:
m
Standard load factor mode
SM or ASM with
bit 1 = 0 (bit 3 = 0 from FW 01.13 of the controller):
I
max aux
= "Max. drive current actual value"
I
sd aux
= "Isd set value"
NOTE!
The amplitude of the field current can be reduced automatically e. g. by the PU over-
load monitoring or phase fail (see "Bit bar of external current limit"
and "Ex-
ternal limiting max. field current amplitude"
), without the parameter value
>
19.7
<
being changed. The currently effective present limit of the field current is the
minimum value between "Max. field current amplitude"
>
19.7
<
and "External limiting
max. field current amplitude"
NOTE!
The "Max. torque current"
>
19.8
<
is the standardized factor of the standardized
torque current limits of the parameters
,
and
, of the standardized torque current set values
and
well as of the standardized total current limit
.
I
sq max
I
max aux
2
I
sd aux
2
–
=
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