Baumuller b maXX BM5800, Parameter Manual

Page: 604 / 816

Operating Modes
Parameter manual b maXX BM5800
Document No.: 5.16029.03 Baumüller Nürnberg GmbH
604
of 814
3.8
136.5
Target angle
The parameter is a set value input for the position control (Operating mode -4). It is a po-
sition value in the format 32 Bit angle.
This input is selected using parameter
Z
136.2
–
Mode bit 2 = 1.
The default setting for the cycle time for new set values is the fieldbus cycle time
(
Z
131.18
–
). The specified angle set value is then interpolated by the cycle time of the cy-
cle time of the set values to the control cycle.
136.6
Angle offset
The parameter only acts as an offset when the input
Z
136.5
–
Target angle has been se-
lected.
The offset value is added to the target angle. This is an absolute position value and it is
also set regardless of the number of communication transmissions and always as an ab-
solute offset value for the target angle. This means that if, for example, the same offset
value is set twice through communication the value will not be added twice.
If the offset is not 0, then
Z
136.5
–
Target angle and
Z
136.12
–
Output angle set value will
deviate from each other by the offset value. When the offset is reset to 0, the output angle
set value will correspond with the target angle.
The format of the parameter is 32 Bit angle. However, in contrast to Parameter
Z
136.5
–
Target angle it has applied leading signs!
Activation of a new offset value:
In default mode (
Z
136.2
–
Mode bit 11 = 0) a new set offset operates after writing the
main set value
Z
136.5
–
target angle, only. This way the effect of the new offset is syn-
chronized with the cyclically mapped main set value.
If the main set value is not cyclically set and the offset input must operate, then in
Z
136.2
–
Mode the bit 11 must be set. Then the current offset value is accepted in every
cycle of the fieldbus task. This parameterization makes sense when writing the offset by
set value generator or curve generator without cyclical mapping of the main set value.
136.7
Offset speed
The parameter acts as offset speed when the position control is active (Operating mode
-4). Regardless of the set value input setting (
Z
136.3
–
or
Z
136.5
–
) it is always active and
in format 16 Bit angle.
Its value is added to the interpolated set value as Delta position (= speed) during each
cycle of the set value interface.
With bit 7 of the
Z
136.2
–
mode a multiplication with the gear factor of
Z
121.13
–
Input
revolutions and
Z
121.14
–
Output revolutions can be activated.
When using the offset speed it must be observed that the input set value and position set
value (
Z
111.2
–
Position set value rev SetValMgr and
Z
111.3
–
Position set value angle
SetValMgr) must no longer match.