Computer Drive Installation Instructions

09.95 12 Functional Descriptions

12.19.5 Interpolation and compensation with tables

12.19.5.4 Activating IKA data

%IKA1

The IKA data of %IKA1 are active immediately.

%IKA2 und %IKA3

Changes to %IKA2 and %IKA3 must be activated separately.

Once all the IKA data have been entered in %IKA2 and %IKA3 all the compensation curves

are calculated with the signal "Warm restart". When the data are loaded into the MMC on

Power On, the compensation curves are calculated by the control automatically.

• From SW4 the individual curves can also be selected and calculated by operating the

softkey "IKA curves".

• From IKA Stage 2, individual curves can be selected and calculated in the part program

with parameter 55.

Notes:

• If an error occurs the control outputs an alarm which does not, however, cause a

processing stop. An error scan must be implemented by the user (see example of

calculation of compensation curves).

• If configuration curves %IKA2 and %IKA3 that are currently active are changed, traversing

errors will occur until they are converted.

12–201

SINUMERIK 840C (IA)