Create erosion parameter table in the plc program – HEIDENHAIN TNC 306 Technical Manual User Manual
Page 164
4-64
TNC 406/TNC 306
4 Gap control
3/97
W700
Auxiliary parameter 5
AUX5
W702
Auxiliary parameter 6
AUX6
For further calculations various eroding parameters are also assigned to extra Q-parameters:
Q96 to Q98
Additional eroding parameters
Q99
Current power stage number NR
Q150
Maximum NR
Q151
Minimum NR
Q152
Current eroding table number
Q154
Minimum undersize UNS of minimum NR
Q155
Two-times gap 2G of minimum NR
Q156
Two-times gap 2G of maximum NR
Q157
Value of MP2040
Q161
Eroding time
Q201 to Q225
Two-times gap 2G of minimum to maximum NR
Q231 to Q255
Minimum undersize UNS of minimum to maximum NR
MP2040
Factor, transmitted to Q157 if TOOL CALL or EL CALL is executed
Entry value: 0.1 to 500 [mm/min]
4.7.3 Create erosion parameter table in the PLC program
The machine tool builder can create his own erosion parameter tables in the instruction list of the
PLC through special code words. With MP 4020 one can select whether the table should be
activated from the NC (defined by HEIDENHAIN), or from the PLC.
MP 4020
Erosion parameter table from NC or PLC
Entry values: 0 or 1
0 = Erosion parameter table from NC
1 = Erosion parameter table from PLC
In order to be able to enter the code words EROTAB, TXT0, TXT1, TXT2, TXT3, NAME, ELEM,
ENDTAB for the creation of the erosion table in the instruction list, the cursor field must be opened
with the SPACE key (see example below).
Each column of the erosion parameter table requires the following information:
TXT0 ..... TXT3
Dialog (4 languages) shown when the column in the erosion parameter
table is selected (depending on MP7230)
NAME Column
designation
ELEM
B/W/D ,#, type of number, routine no., characteristic; comments
B/W/D Memory for input values
, , element is editable during erosion
,#, element is locked during erosion
Type of number (see below)
Routine no. = 0: no specification when entering a value
Routine no. = 1: specification check if value already exists
Characteristics: (must all be programmed at one time)
FRST First element on-line