Incremental Approach Relative (Mode 7) - Siemens SIMATIC S5 Manual
Positioning module
1p 247
for stepper motors
Hide thumbs
Also See for SIMATIC S5:
- Manual (396 pages) ,
- Equipment manual (197 pages) ,
- Operating instructions manual (43 pages)
Table of Contents
Advertisement
Description of the Individual Operating Modes
Speed
parameter
Start after
V2
0
VI
d = 200
d: Distance
Fig, 4/1 1 Traversing in the incremental absolute mode
4.2.7
Incremental Approach Relative (Mode 7)
In this mode, a preset distance forwards or backwards is travel led from the current actual posi-
tion. The same conditions apply to the speed as for mode 6 "incremental approach absolute".
This mode can also be executed when the reference point is deleted. The travel direction is deter-
mined by the operating instruction "forward" or "reverse".
Forward 200mm
v T
II
0
-
I
Fig. 4/1 2 Traversing in the "incremental approach relative" mode
With a linear axis, the distance to be travelled must be such that the resulting target position with
a reference point set remains within the traversing range between the two software limit switches
(also taking into account zero point offsets). If this is not the case, the job is aborted and the
error "traversing range exceeded" is displayed. With a rotary axis, the distance travel led is limited
to +/-200 m (+/-20 000 inches, +/-200 000 degrees). If this limit is not adhered to, the job is
also aborted and the error message "illegal dist. spec. " is generated.
4 - 1 6
mm
200
—
—
–
–––
–
mm
t: Time
v: Speed
O: Speed in machine data
d = 200mm
d: Distance
t: Time
v: Speed
O: Speed in machine data
\
\
\
\
\
\
\
stop
(abort)
Siemens AG°C79000-B8576 -C707-01
t
Advertisement
Table of Contents
