Operating instructions

68 Application manual Positioning 04/08
4.4.5.1 Starting and stopping positioning
The positioning operation is controlled via signals for both parameters
Start Position-
ing
1222 and Stop Positioning 1223. The parameters can be assigned logic signals
or digital inputs. The positioning operation is started with a positive edge on digital
input or a logic signal for parameter
Start Positioning 1222 (factory setting S2IND).
The logic signals for motion block change-over are evaluated only when a signal for
parameter
Start Positioning 1222 is present. Via Operation Mode 1221, it is de-
fined if a single motion or an automatic sequence is started. After completion of an
automatic motion block sequence, a restart can be performed.
Operation Mode
1221 defines the action after start positioning and the motion block selection.
Operation Mode 1221:
− automatic sequence or single motion
− restart after automatic sequence
− first motion block for automatic sequence via motion block change-over function
or via parameter
Starting-Record Number 1228
− motion block for single motion via motion block change-over function or via pa-
rameter
Starting-Record Number 1228
If the signal for "Stop Positioning" is set during a motion order, the drive will stop at
the current position at the
Deceleration 1206 set in the current motion block. As
soon as "Stop Positioning" is reset, the motion block is continued.
Acceleration 1204
Speed 1203
f
t
t
0
Start
S2IND*
0
1
t
S
top
S3IND*
*
Factory setting
0
1
Deceleration 1206
Position reache
d
t
Position
0
Target Position 1202
If the signal for "Start Positioning" is reset during a motion order, the drive will stop
at the current position at the
Deceleration 1206 set in the active motion block. If
"Start Positioning" is set again the sequence of motion blocks begins with the 1
st
motion block. If the time set in parameter
Holding Time 638 is exceeded, the drive
is switched off.
Parameter Factory setting
1222 Start Positioning 71 - S2IND
1223 Stop Positioning 72 - S3IND
Application manual Positioning 04/0868