Siemens SINUMERIK 802S Technical Manual page 83

SINUMERIK 802S base line
Start-Up
Caution
Changing the MD: MM_CEC_MAX_POINTS[t] or MM_ENC_COMP_MAX_POINTS
automatically reorganizes the NC user memory when the control system is
booting. All user data stored in the user memory (e.g. drive and MMC machine
data, tool offsets, part programs, compensation tables etc.) are deleted.
Enter the compensation value for the intermediate point N in the
z
compensation value table (ENC_COMP_[0,N,Axi]).
Select the distance between the individual intermediate points
z
(ENC_COMP_STEP [0,Axi]).
Select the start position (ENC_COMP_MIN [0,Axi]).
z
Define the end position (ENC_COMP_MAX [0,Axi]).
z
In the NC, set MD: ENC_COMP_ENABLE(0)=0. This is the only way to
z
load the compensation table.
The compensation values for the machine axes are entered into the NC
memory by means of a part program (see also example in the Manual
"Description of
Approach the reference points in the axes. Then start the NC program
z
with the leadscrew error compensation table. The reference points must
then be approached once more to set the LEC active. The LEC function
is activated by setting the MD: ENC_COMP_ENABLE(0)=1 for each
machine axis.
Another possibility to create the LEC compensation table is by reading
out the LEC file from the NC via the V24 interface.
MD: MM_ENC_MAX_POINTS must be set depending on the number of axes
to be compensated. Select Service using the softkey, put the cursor to Data,
and press the Show softkey. Then select "Leadscrew Error" using the cursor
and press the Data Out softkey.
Enter compensation values, intermediate point distance, start and end position
in the received file _N_COMPLETE_EEC by means of the editor (e.g. in the
WINPCIN/OUT program). Then re-read the edited file into the control system.
Approach the reference point in the axes and set MD: ENC_COMP_ ENABLE
(0)=1. The LEC is thus activated.
Functions")
Start-Up
4-43