Siko AP05 - Loop Positioning; Controlword in Absolute Position Operating Mode

Functional Description
AP05 Date: 22.08.2022 Art. No. 90885 Mod. status 108/22 Page 10 of 50
3.1.1.2 Loop positioning
Target window is also applied to the loop length.
The behavior of the clearance compensation is independent of the set
counting direction of the display. The loop type must be changed to change
the clearance compensation.
If the position indicator is operated on a spindle or an additional gear, the spindle or external
gear backlash can be compensated by means of loop positioning. Therefore, movement
towards the target value is always in the same direction. This direction of approach can be
defined.
Example:
Each target position should be approached with a clockwise rotation (CW) of the shaft.
• Case 1  the new position is greater than actual value:
The target position is approached directly clockwise (CW).
• Case 2  the new position is smaller than actual value:
The directional arrows of the position indicator indicate that the loop length is to be
moved counterclockwise (CCW) beyond the target position. Them the target value is
approached clockwise.
Fig. 4: Positioning loop CW
3.1.1.3 ControlWord in Absolute Position operating mode
The ControlWord differs in function depending on operating mode.
The designation of the individual bits of the ControlWord as well as their meaning:
Bit
Meaning
Value = 0
Value = 1
0
bc00_CalibrationExecute
-
Trigger calibration (edge
controlled, positive)
1
bc01_Reserved
ever 0
-
2
bc02_Reserved
ever 0
-
Positioning: loop CW
Loop length
Counterclockwise positioning
Clockwise positioning
CCW
CW
Target value
Target window