• DOK-DIAX02-DDS02.1*ANA-ANW1-EN-E1,44 • 12.96
78
7. Commissioning the functions of the digital AC servo drive
Setting the
reference position
The reference position is set using the parameter "absolute encoder
parameter" in the „POSITION EVALUATION“ menu.
Example (see Fig. 75):
– The desired reference position is in the middle of the operating stroke
Procedure:
1. Manoeuvre the axis to the manually measured reference position.
2. Enter the desired absolute position actual value in the parameter
"reference position" (according to the example, this will be 2048).
Fig. 75: Example: setting the reference position using the "absolute encoder
parameter".
Slide
Reference
position
0
>0
4096 motor
revolutions
<4096
1)
2) Useful stroke
1) Maximum stroke with absolute indirect position actual-value sensing on the motor
(4096 motor revolutions)
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2)
3)
3)
3) Max. deceleration path
Traversing commands outside the permissible stroke will re-
sult in a high accident risk for both operators and machines.
If the maximum stroke is exceeded, the absolute position actual value will
be lost.
Fig. 76: Absolute position actual value signal of the DAA 1.1
P
4095
A
>0
<4096
P = absolute position actual value output on DAA 1.1
A = Traversing range limited by the absolute position actual value
output signal on DAA 1.1
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