Specifications

• DOK-DIAX01-MAIN+2AD+1M-ANW1-EN-E1,44 • 07.97
48
3. Controller Functions
Function sequence graph
Drehzahlrampen Sprung
speed
command
value, e.g.,
analogue
motor
speed
( RAMP1 )
( RAMP2 )
U
analogue
=
^
( CMD VOLT )
A01
( RAMP3 )
( RPM2 )
( RPM1 )
( MAX RPM )
A01
time t
S R Q
P05
S R Q
P03
S R Q
P01
S R Q
P04
S R Q
P02
27
23
24
25
26
28
29
30
31
32
33
34
35
36
37
3
1
POS 2
E-STOP (RAC only)
RF
RUN
POS 1
MD-RED
OSCILATE
PAR 1
PAR 2
LIMIT 1
LIMIT 2
LIMIT 4
SPEED 1
SPEED 2
EXT POS
AS (KDA/TDA only)
0
control unit
X2 control inputs
1
=
weighting changeover
^
1
1
1
Drehzahlsollwertglättung
Legend:
1 = +24V
0 = 0V
= signal step
= any control
state
^
^
^
^
Note: The speed command value smoothing is inoperative when the
input weighting (EXTPOS=1) is changed. However, it can be made
operative via parameters when EXTPOS=1.
Smoothing and weighting
selection
3.5 Command Value Smoothing
When controlling the main spindle drive along a ramp via the NC
controller or when operating in positioning mode, staircase changes in
command values by the NC controller cause sudden torque changes.
The speed command value can be smoothed to dampen these.
Adjustable smoothing time constants provide matching to different NC
clock times and mechanical conditions for the various speed reduction
stages!
Figure 29: Speed ramps for step change in speed command value
Figure 30: Control inputs affecting speed command value smoothing