Optimization functions, Slip filter for external position localization – Parker Products COMPAX-M /-S (L) User Manual
Page 137
Optimization functions
External position localization with position adjustment
137
Unit
hardware
Connector
assignment / cable
Technical data
Configuration
Positioning and
control functions
Optimization
functions
Interfaces
Accessories /
options
Status
Parameter
Error list
Para-
meter
Meaning
valid
from..
P214
Encoder direction.
="0": positive direction for encoder rotating clockwise.
="1": positive direction for encoder rotating anti-clockwise.
Setting aid:
♦
Switch off external position adjustment (P144=4) and data record
P214=0.
♦
Note S42 (position of external sensor).
♦
Proceed with POSR x axis.
♦
S1 and S42 must change by the same value (x).
•
If the prefix of the modification is different, set data record P214="1".
•
If the modification has a different amount, check P143 and P98.
VP
The command "SPEED SYNC" cannot be used in external position
localization!
A number overrun is possible in special applications. To prevent this occurring, the
following condition must be met:
V
≥≥≥≥
1
Determine V depending on drive type and measuring unit:
Drive type
Measuring unit Determining V
Spindle drive
mm (inch)
)
4
.
25
(
85
P
K
V
•
•
=
Rack-and-pinion/
toothed belt
mm (inch)
)
4
.
25
(
82
P
85
P
K
V
•
•
=
General drive
mm (inch)
)
4
.
25
(
1000
K
V
•
•
=
General drive
Incr.
V K
=
A slip filter with a differentiating element (D-element) is provided to optimize
external position adjustment.
No.
Meaning
Unit
Minimum
value
Default
value
Maximum
value
Valid
from...
P67
D-element slip filter
%
0
100
500
VP
P68
Slip filter lag
%
0
100
5000
VP
Both parameters are set to 100% as standard. The time constants are then
identical and the filter ineffective. Meaning:
Parameter
Effect
Application
P67 = P68
Filter ineffective (standard)
P67 < P68 or
P67 = 0
Filter has
delaying effect
♦
Low resolution of measuring system
♦
Interference on the measuring signal
P67 > P68
Filter has
differentiating
effect
at high dynamic requirements.
Conditions:
high-resolution measuring
system and low interference on the measuring
signal.
Limit values of
parameters
Slip filter for
external
position
localization
Using
K
P
P
P
=
•
•
98 16384
83
143
.