KFU 2-/4-
123
The digital signal for registration of the reference point and the logical assignment are
to be chosen from a selection of S
ignal source
459
. The link of the digital inputs
S2IND, S3IND and S6IND to further functions is to be checked according to selected
Configuration
30
(e.g., in configurations 110 and 210, digital input S2IND is linked to
the function "Start of clockwise operation").
The signals for positioning and a stopping behavior should not be assigned to the
same digital input.
Signal source
459
Function
2 - S2IND, neg. edge
3 - S3IND, neg. edge
6 - S6IND, neg. edge
The positioning starts with the change of the
logic signal from 1 (HIGH) to 0 (LOW) at the
reference point.
1x - SxIND, pos. edge
The positioning starts with the change of the
logic signal from 0 (LOW) to 1 (HIGH)
2x - SxIND, pos./neg. edge
The positioning begins with the change of the
logic signal
The registration of the reference position via a digital signal can be influenced by a
variable dead time while the control command is read and processed. The signal
running time is compensated by a positive figure for the
Signal correction
461
. The
setting of a negative signal correction decelerates the processing of the digital signal.
Parameter
Settings
No.
Description
Min.
Max.
Fact. sett.
461 Signal correction
-327.68 ms
+327.67 ms
0.00 ms
The influences on the positioning which depend on the operating point can be cor-
rected empirically via the
Load correction
462
parameter. If the required position is
not reached, the deceleration duration is increased by a positive load correction val-
ue. The distance between the reference point and the required position is extended.
Negative values accelerate the braking process and reduce the positioning distance.
The limit of the negative signal correction results from the application and the
Posi-
tioning distance
460
.
Parameter
Settings
No.
Description
Min.
Max.
Fact. sett.
462
Load
correction
-32768
+32767
0
