Examples - Siemens SINUMERIK 840D sl Function Manual

K3: Compensations
5.4 Interpolatory compensation
6. The control calculates the compensation values for the starting and end points of the
compensation straight lines, absolute or relative, depending on setting data SD41356
$SN_CEC_CALC_ADD[<t>]:
Absolute:
– SD41320 $SN_CEC_0[<t>] = <calculated compensation value at the starting position>
– SD41321 $SN_CEC_1[<t>] = <calculated compensation value at the end position>
Relative:
– SD41320 $SN_CEC_0[<t>] = SD41320 $SN_CEC_0[<t>] + <calculated compensation
– SD41321 $SN_CEC_1[<t>] = SD41321 $SN_CEC_1[<t>] + <calculated compensation
The measured values are written into bit memories after the calculation and then deleted:
– Bit memory = measured value
– Measured value = 0.0
7. Set enable for use of the compensation table:
5.4.6.3

Examples

In the following examples, for the cylinder error compensation, the first compensation table
(index 0) is used.
308
value at the starting position>
value at the end position>
Setting data $SN_...
SD41320 CEC_0[<t>]
SD41321 CEC_1[<t>]
Setting data $SN_...
SD41335 CEC_BAS_STORE_0[<t>]
SD41350 CEC_COMP_STORE_0[<t>]
SD41336 CEC_COMP_STORE_0[<t>]
SD41351 CEC_COMP_STORE_1[<t>]
SD41330 CEC_BAS_0[<t>]
SD41340 CEC_COMP_0[<t>]
SD41331 CEC_BAS_1[<t>]
SD41341 CEC_COMP_1[<t>]
Setting data $SN_...
SD41300 CEC_TABLE_ENABLE[<t>]
Meaning
Compensation value at the starting position
Compensation value at the end position
Meaning
Bit memory
Bit memories for measuring point P1: Base value
Bit memories for measuring point P1: Cylinder
error
Bit memories for measuring point P2: Base value
Bit memories for measuring point P2: Cylinder
error
Deleted measured values
Measuring point P1: Base value
Measuring point P1: Cylinder error
Measuring point P2: Base value
Measuring point P2: Cylinder error
Meaning
Compensation table enable
Function Manual, 10/2015, 6FC5397-1BP40-5BA3
Extended Functions