Baumuller b maXX BM2500, Operating Manual

Page: 141 / 822

Description of the Software Modules and Parameters
Parameter manual b maXX BM3000
Document no.: 5.12001.07
141
of 820
4
138.12
Center frequency Iq set value notch filter
Setting of the center frequency of the Iq set value of the notch filter. The filter is switched
off, when the value is less than 2 Hz.
138.13
Bandwidth Iq set value notch filter
The bandwith of the Iq set value of the notch filter is set here.
138.14
Iq limit bipolar cyclic
The parameter enables a symmetric torque current limit for a fast cyclic access, e.g. via
analogous input or fieldbus process data.
The torque current set value can be limited symmetrical in both directions.
Other torque current limits can be set
Z
138.2
–
,
Z
138.3
–
,
Z
138.15
–
as well as the torque
current limit generated by the torque limit
Z
138.22
–
.
Other torque current limits are available as well:
Z
138.18
–
,
Z
138.30
–
,
Z
114.5
–
and
Z
114.6
–
. Furthermore, the motor-operated torque current can be disabled due to power
failure (refer to
Z
138.10
–
bit 1).
The strongest limit is effective. The definite upper and lower torque current limit is dis-
played in
Z
138.6
–
and
Z
138.7
–
.
Changes in 138.14 are accepted in the set cycle of the speed controller (= RT0 cycle time
Z
1.8
–
).
In comparison with the symmetrical torque current limit the 138.14 cannot be saved and
is not subject to the hysteresis (
Z
138.15
–
) when defining the quadrant.
Standardization:

100%
=
Max. torque current
Z
19.8
–
138.15
Iq limit bipolar
The torque current set value can be limited symmetrically with this limit, i.e. equal in both
torque directions.
NOTE!
The parameter must continuously be understood as the percentage set of the "Max.
torque current"
Z
19.8
–
. The parameter can be entered and displayed in ampere (this
is demanded as an auxiliary setting) at ProDrive or fieldbus. The value which was en-
tered in ampere however can change during the operation because the reference val-
ue can change because of the field weakening or the external total current limit. See
parameters
Z
19.8
–
and
Z
138.1
–
as well as the chapter
Z
Torque Current Limiting
–
on page 470.