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5 Description of the Functions
5.5 SIMODRIVE POSMO A functions
5-160
encing).
S
Set reference coordinate
The position of the last zero mark before the end of the second pro-
gram block is therefore set to the value in P5 (reference point coor-
dinate).
Set simplified reference position (from SW 1.4)
The drive is automatically referenced when the above traversing pro-
gram is run if the following is specified in the second block:
S
P85:14 (signal position for block 14)
= set "required reference point" coordinate
S
Set PSW.9 (set reference position) to 1
In this case, the last part of the example above is eliminated.
Note
S
If the direction of rotation is reversed in both traversing blocks
(negative velocity), the reference point approach is executed in the
opposite direction.
S
In order to select the last zero mark at the reference cam as
reference point coordinate, the shutdown velocity should be
selected low enough, so that when braking after leaving the cam,
no other zero marks are passed.
S
Reference cam length
A cam length should be selected so that the axis brakes from the
approach velocity to the shutdown velocity while still at the cam.
SIMODRIVE POSMO A User Manual (POS1) – 08/2013 Edition
E Siemens AG 2013 All Rights Reserved
04.01
02.99
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