42 EM-ABS-01 for ACU 03/12
Note: When the position controlled is deactivated, roundin
errors may result in
a minor continuous increase in the contouring error. In most cases howev-
er, this is small enough to be distinguishable.
s soon as the settin
s have been checked for correctness, repeat the tests usin
sources 1002/ 1006 (resolution 10 times hi
her than sources 1007/1011), then usin
1001 / 1005 and then usin
1000 and 1004. In this way, the settin
s are checked
again at a higher accuracy. Note that, with a higher accuracy, overflows may be dis-
played in Scope more frequently. This does not affect the function.
Note:
Depending on the reference system chosen (Parameter
Feed con-
stant
1115, Gear Box: Driving Shaft Revolutions 1116 and Gear Box:
Motor Shaft Revolutions
1117), some sources may not have the required
significance in Scope. Then, switch to the next smaller couple as shown
above. Always start with the highest setting.
ctivate the position controller a
ain. Position controller Limitation 1118 settings
must always match the reference system and the mechanical system.
contourin
error will typically build up durin
acceleration or deceleration. Durin
constant travel operations, the contourin
error should become smaller a
ain. Note
that the
Maximum frequency 419 is exceeded by the output of the position controller.
Ensure that the total of
Maximum frequency 419 and position controller Limita-
tion
1118 can be reached by the mechanical equipment. A reduction of the maximum
frequency may be a good idea in certain applications in order to limit the total to the
mechanically possible maximum.
In most application, limitation of position controller
Limitation 1118 to approx. 10 %
of the maximum frequency makes sense.
With the position controller activated, check the function again.
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