POSIDRIVE
®
FDS 4000
STÖBER
ANTRIEBSTECHNIK
13. Parameter Description
P
Depends on pole number
B10
; f
max
= 400 Hz. With a 4-pole motor:, this is 12000 rpm at 400 Hz.
•
The power pack must be turned off before these parameters can be changed.
Italics
These parameters are sometimes not shown depending on which parameters are set.
1)
See result table in chap. 15.
2) Only available if
D90
≠
1
Parameters which are included in the
normal
menu scope (
A10
=0). For other parameters, select
A10
=1:
extended
or
A10
=2:
service
.
Parameters marked with a "
√
" can be parameterized separately from each other in parameter record 1 and 2.
48
I.. Posi. Machine
Para. No. Description
I09
Measurement unit:
Only if
I05
=0 (user unit). Indication of the unit of measure defined as desired by the user
with FDS Tool. Up to 4 characters can be used.
I10
Max. speed:
Unit/sec.
Works simultaneously with the maximum motor speed in
C01
. The actual speed limit corresponds to the lower
of the two parameters. When a higher feed speed is specified, the value is limited to
I10
or
C01
without causing
the following error.
Value range in I05/sec:
0 to 10 to 31 bits
I11
Max. acceleration:
Units/sec
2
. With quick stop, the drive decelerates with
I11
. The acceleration for manual (
I12
)
and reference point traversing (
I33
, chap. 10.6) is also derived from
I11
(i.e., each is ½ of
I11
).
Value range in I05/sec
2
:
0 to 10 to 31 bits
I12
Tip speed:
Units/sec. Speed during manual operation (
J03
). As with all speeds, it can be changed via analog
input AE2 (
F20
=
5:Override
). Acceleration during manual operation is ½ of
I11
.
Value range in I05/sec:
0 to 180 to 31 bits
I15
Accel-override:
Permits modification of the set ramps via AE2 (
F20
=
5:Override
).
0: inactive;
Ramps are not changed by override. Standard setting.
1: active;
Ramps are changed by override. Only recommended in exceptional cases (e.g., process block
chaining without stop to generate simple n(x) speed profiles.
Caution:
The override value affects acceleration to the power of two. Danger of overload when override
> 100%. During ramps, changes in accel-override are only adjusted slowly in a background task.
When Accel-Override (
I15
=1) is activated, the override value should not be decreased to 0%. This would make
the ramp infinitely long and the drive would never stop!
I16
S-ramp:
Reverse limitation through square sinus ramp. The generated acceleration profile is smoothed with the
specified time constant. Positioning takes a little longer.
Value range in msec:
0 to 32767
I19
ENA-interrupting:
In the default setting, removal of the enable causes the position controller to be reset (status
"
17:posi.active
"). Particularly during continuous positioning, it is important that interrupted process blocks can be
concluded after emergency off or similar.
I19
offers particularly simple process block interruption. See also
chap. 10.10.
0: inactive;
Enable-off resets the positioning controller.
1: active;
Enable-off while process block is running causes status "
23:interrupted
." The interrupted process
block is completed with
Posi.step
. Not possible for process blocks which are chained
without
Stop (
J17
=2).
I20
Kv-factor:
Gain of position controller (only P characteristic) with unit of 1/sec. The Kv factor is also known as
the speed gain. In actual practice, the Kv factor is sometimes specified with the unit m/min/mm which is exactly
0.06 x
120
. See also block circuit diagram in chap. 10.7.
Value range in 1/sec:
0 to 30 to 100
I21
Max. following error:
The output function (
F00
=
9:follow.error
) is activated when the following error defined in
I21
is exceeded. The Windows program FDS Tool can then be used to specify as desired the reaction to the
exceeded following error as a fault (default setting), warning or message.
Value range in I05:
0 to 90 to 31 bits
I22
Target window:
Window for the output signal "reference value reached" (
F00
=
3:RefVal-reached
).
I22
must be
greater than
I23
!.
Value range in I05:
0 to 5 to 31 bits
I23
Dead band pos. control.
"Dead zone" of the position controller. Useful to prevent idle-state oscillation
particularly when an external position encoder is used and there is reversal play in the mechanics. Cf. chap.
10.7.
Caution:
I23
Dead band must be smaller than target window
I22
!
Value range in I05:
0 to 31 bits
I25
Speed feed forward:
Switches the calculated speed profile to the output of the position controller (chap. 10.7).
If there is overswinging in the destination position,
I25
and
C32
must be reduced.
Value range in %:
0 to 80 to 100
I30
Reference mode:
For details on reference point traversing, see chapter 10.6.
0: reference input
;
When searching for the reference point, the reference input is the determining factor (i.e.,
the BE function
"23:Reference input"
must be parameterized).
1: stop input
;
The function of the reference input is fully covered by the stop switch (i.e., BE function
"21:Stop +"
or
"22:Stop -"
must be parameterized). When the starting direction is positive (
I31
=0), positive
"Stop +"
is required. Triggering the wrong stop switch causes a fault.
2: encoder signal 0
;
Only of interest for drives without a gearbox. Used to align the motor shaft to a defined
position.
