K3: Compensations
4.4 Interpolatory compensation
Extended Functions
Function Manual, 03/2013, 6FC5397-1BP40-3BA1
239
Preconditions / activation
The MSEC is only active until the following pre-conditions:
● The compensation values are stored in the static user memory and are active (after
POWER ON).
● The function has been activated for the relevant machine axis:
MD32700 $MA_ENC_COMP_ENABLE [<e>] = 1
= Position measuring system
<e> = 0 Measuring system 1
with: <e>
<e> = 1 Measuring system 2
● The axis has been referenced:
DB31, ... DBX60.4 or 60.5 =1 (referenced/synchronized 1 or 2)
As soon as these conditions have been fulfilled, the axis-specific actual value is modified by
the compensation value in all modes and traversed by the machine axis immediately.
If the reference is then lost, e.g. because the encoder frequency has been exceeded (DB31,
... DBX60.4 or 60.5 = 0), compensation processing is deactivated.
4.4.2.2 Commissioning
Number of compensation interpolation points (MD38000)
For every machine axis and for every measuring system (if a 2nd measuring system is
installed), the number of reserved interpolation points of the compensation table must be
defined and the necessary memory reserved with the following machine data:
MD38000 $MA_MM_ENC_COMP
_MAX_POINTS[<e>,<AXi>]
Position measuring system
<e> = 0 Measuring system 1
with: <e> =
<e> = 1 Measuring system 2
<AXi> =
Axis name (e.g. X1, Y1, Z1
)
The required number of compensation interpolation points is calculated as follows:
00B(1&B&203B0$;B32,176>H$;L@
$$B(1&B&203B0$;>H$;L@ದ$$B(1&B&203B0,1>H$;L@
$$B(1&B&203B67(3>H$;L@
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